chromaprint | C library for generating audio fingerprints used by AcoustID | Audio Utils library

by acoustid C++ Version: v1.5.0 License: Non-SPDX

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kandi X-RAY | chromaprint Summary

chromaprint is a C++ library typically used in Audio, Audio Utils applications. chromaprint has no bugs, it has no vulnerabilities and it has low support. However chromaprint has a Non-SPDX License. You can download it from GitHub.

Chromaprint is an audio fingerprint library developed for the AcoustID project. It's designed to identify near-identical audio and the fingerprints it generates are as compact as possible to achieve that. It's not a general purpose audio fingerprinting solution. It trades precision and robustness for search performance. The target use cases are full audio file identifcation, duplicate audio file detection and long audio stream monitoring.

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kandi-support Support

chromaprint has a low active ecosystem.
It has 580 star(s) with 93 fork(s). There are 35 watchers for this library.
It had no major release in the last 12 months.
There are 17 open issues and 48 have been closed. On average issues are closed in 46 days. There are 4 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of chromaprint is v1.5.0

chromaprint Support

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chromaprint Support

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quality kandi Quality

chromaprint has 0 bugs and 0 code smells.

chromaprint Quality

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chromaprint Quality

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security Security

chromaprint has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
chromaprint code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

chromaprint Security

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chromaprint Security

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license License

chromaprint has a Non-SPDX License.
Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

chromaprint License

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chromaprint License

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build Reuse

chromaprint releases are available to install and integrate.
Installation instructions are not available. Examples and code snippets are available.
It has 688 lines of code, 35 functions and 7 files.
It has low code complexity. Code complexity directly impacts maintainability of the code.

chromaprint Reuse

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chromaprint Reuse

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chromaprint Key Features

C library for generating audio fingerprints used by AcoustID

chromaprint Examples and Code Snippets

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Building

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$ cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_TOOLS=ON .
$ make
$ sudo make install

FFT Library

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$ cmake -DFFT_LIB=kissfft .

FFmpeg

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$ cmake -DFFMPEG_ROOT=/path/to/local/ffmpeg/install .

API Documentation

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$ make docs
$ $BROWSER docs/html/index.html

Unit Tests

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$ cmake -DBUILD_TESTS=ON .
$ make check

ffmpeg copy codec outputs in slowmotion

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ffmpeg -r 60 -an -i /dev/video0 -vcodec copy test.mp4

ffmpeg - Lower volume of background music for dialog in a video

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[1:a]aresample=44100,adelay=3000,apad,asplit=2[sc][mix];\
[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
[bg][mix]amix=duration=shortest[out]

ffmpeg -i video-with-bg-music.mp4 -i dialogue.mp3 \
  -af [1:a]adelay=3000,apad \
  -shortest final.mp4

ffmpeg -filter_complex \
    [1:a]aresample=44100,apad,asplit=2[sc][mix];\
    [0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
    [bg][mix]amix=duration=shortest[out] \
  -f lavfi -i anoisesrc=d=60:c=pink:r=44100:a=0.5 \
  -f lavfi -i sine=220:4:d=5 \
  -map [out] output.mp3

-----------------------

[1:a]aresample=44100,adelay=3000,apad,asplit=2[sc][mix];\
[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
[bg][mix]amix=duration=shortest[out]

ffmpeg -i video-with-bg-music.mp4 -i dialogue.mp3 \
  -af [1:a]adelay=3000,apad \
  -shortest final.mp4

ffmpeg -filter_complex \
    [1:a]aresample=44100,apad,asplit=2[sc][mix];\
    [0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
    [bg][mix]amix=duration=shortest[out] \
  -f lavfi -i anoisesrc=d=60:c=pink:r=44100:a=0.5 \
  -f lavfi -i sine=220:4:d=5 \
  -map [out] output.mp3

-----------------------

[1:a]aresample=44100,adelay=3000,apad,asplit=2[sc][mix];\
[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
[bg][mix]amix=duration=shortest[out]

ffmpeg -i video-with-bg-music.mp4 -i dialogue.mp3 \
  -af [1:a]adelay=3000,apad \
  -shortest final.mp4

ffmpeg -filter_complex \
    [1:a]aresample=44100,apad,asplit=2[sc][mix];\
    [0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
    [bg][mix]amix=duration=shortest[out] \
  -f lavfi -i anoisesrc=d=60:c=pink:r=44100:a=0.5 \
  -f lavfi -i sine=220:4:d=5 \
  -map [out] output.mp3

ffmpeg error "output file #0 does not contain any stream" with FORFILES

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  rem // Loop through all `*.flac` files in the current working directory:
  for %%I in ("*.flac") do (
      rem // The `~`-modifiers remove quotes and extract path/name parts:
      ffmpeg -i "%%~I" -c:v copy -c:a alac "%%~nI.m4a"
  )

  for %I in ("*.flac") do @ffmpeg -i "%~I" -c:v copy -c:a alac "%~nI.m4a"

forfiles /M "*.flac" /C "ffmpeg ffmpeg -i @file -c:v copy -c:a alac @fname.m4a"

-----------------------

  rem // Loop through all `*.flac` files in the current working directory:
  for %%I in ("*.flac") do (
      rem // The `~`-modifiers remove quotes and extract path/name parts:
      ffmpeg -i "%%~I" -c:v copy -c:a alac "%%~nI.m4a"
  )

  for %I in ("*.flac") do @ffmpeg -i "%~I" -c:v copy -c:a alac "%~nI.m4a"

forfiles /M "*.flac" /C "ffmpeg ffmpeg -i @file -c:v copy -c:a alac @fname.m4a"

-----------------------

  rem // Loop through all `*.flac` files in the current working directory:
  for %%I in ("*.flac") do (
      rem // The `~`-modifiers remove quotes and extract path/name parts:
      ffmpeg -i "%%~I" -c:v copy -c:a alac "%%~nI.m4a"
  )

  for %I in ("*.flac") do @ffmpeg -i "%~I" -c:v copy -c:a alac "%~nI.m4a"

forfiles /M "*.flac" /C "ffmpeg ffmpeg -i @file -c:v copy -c:a alac @fname.m4a"

Inconsistent frame number with ffmpeg

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ffmpeg -y -r 60 -f lavfi -i testsrc=size=384x256:rate=1 -vf "setpts=N/60/TB" -g 60 -vcodec libx265 -x265-params crf=28:bframes=3:b-adapt=0 -tag:v hvc1 -pix_fmt yuv420p -t 20 test_video.mp4

ffprobe -i test_video.mp4 -show_frames -show_entries frame=pict_type

ffmpeg -i test_video.mp4 -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 clips/part_%d.mp4

ffprobe -i part_1.mp4 -show_packets

-----------------------

ffmpeg -y -r 60 -f lavfi -i testsrc=size=384x256:rate=1 -vf "setpts=N/60/TB" -g 60 -vcodec libx265 -x265-params crf=28:bframes=3:b-adapt=0 -tag:v hvc1 -pix_fmt yuv420p -t 20 test_video.mp4

ffprobe -i test_video.mp4 -show_frames -show_entries frame=pict_type

ffmpeg -i test_video.mp4 -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 clips/part_%d.mp4

ffprobe -i part_1.mp4 -show_packets

-----------------------

ffmpeg -y -r 60 -f lavfi -i testsrc=size=384x256:rate=1 -vf "setpts=N/60/TB" -g 60 -vcodec libx265 -x265-params crf=28:bframes=3:b-adapt=0 -tag:v hvc1 -pix_fmt yuv420p -t 20 test_video.mp4

ffprobe -i test_video.mp4 -show_frames -show_entries frame=pict_type

ffmpeg -i test_video.mp4 -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 clips/part_%d.mp4

ffprobe -i part_1.mp4 -show_packets

-----------------------

ffmpeg -y -r 60 -f lavfi -i testsrc=size=384x256:rate=1 -vf "setpts=N/60/TB" -g 60 -vcodec libx265 -x265-params crf=28:bframes=3:b-adapt=0 -tag:v hvc1 -pix_fmt yuv420p -t 20 test_video.mp4

ffprobe -i test_video.mp4 -show_frames -show_entries frame=pict_type

ffmpeg -i test_video.mp4 -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 clips/part_%d.mp4

ffprobe -i part_1.mp4 -show_packets

Apache mpm event shared memory error - ffmpeg-python Error while opening encoder for output stream #0:1 when accessed by multiple instances

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a2dismod fcgid
systemctl restart apache2

cvlc cannot play rtsp (omxplayer instead can)

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/snap/bin/vlc rtsp://...

sudo apt-get build-dep vlc vlc-plugin-qt phonon4qt5-backend-vlc

sudo apt-get install libqscintilla2-qt5-dev libqt5charts5-dev qtdeclarative5-dev libqt5gstreamer-dev libqt5opengl5-dev phonon4qt5-backend-vlc libqt53dcore5 qtquickcontrols2-5-dev

git clone git://git.videolan.org/vlc.git

cd vlc

./bootstrap

cd contrib

mkdir native

cd native

../bootstrap

make (stop with error : protoc system version 3.12.4 and required version 3.1.0 do not match)

cd ../../

./configure --prefix=/usr/local  --enable-merge-ffmpeg  --enable-live555

make

-----------------------

/snap/bin/vlc rtsp://...

sudo apt-get build-dep vlc vlc-plugin-qt phonon4qt5-backend-vlc

sudo apt-get install libqscintilla2-qt5-dev libqt5charts5-dev qtdeclarative5-dev libqt5gstreamer-dev libqt5opengl5-dev phonon4qt5-backend-vlc libqt53dcore5 qtquickcontrols2-5-dev

git clone git://git.videolan.org/vlc.git

cd vlc

./bootstrap

cd contrib

mkdir native

cd native

../bootstrap

make (stop with error : protoc system version 3.12.4 and required version 3.1.0 do not match)

cd ../../

./configure --prefix=/usr/local  --enable-merge-ffmpeg  --enable-live555

make

FFMPEG- Could not write header for output file #0 (incorrect codec parameters ?): Operation not permitted Error initializing output stream 0:2 --

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ffmpeg -f webm_dash_manifest -i 480p.webm -f webm_dash_manifest -i 720p.webm -f webm_dash_manifest -i audio.webm -c copy -map 0 -map 1 -map 2 -f webm_dash_manifest -adaptation_sets "id=0,streams=0,1 id=1,streams=2" manifest.xml

Cannot play mp4 video with ffplay, but mpv can

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ffplay -codec:v h264 input.mp4

Simultaneously adding a 2-second delay and delaying one of the inputs in -ffmpeg-

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ffmpeg -i r.mp4 -i s.mp4 -i t.mp4 -i u.mp4 -i v.mp4 -i w.mp4 -i x.mp4 -i y.mp4 -i z.mp4 -filter_complex "[0:v]tpad=start_duration=3,scale=iw/5:-1[v0];[1:v]tpad=start_duration=3,scale=iw/5:-1[v1];[2:v]tpad=start_duration=3,scale=iw/5:-1[v2];[3:v]scale=iw/5:-1[v3];[4:v]tpad=start_duration=3,scale=iw/5:-1[v4];[5:v]tpad=start_duration=3,scale=iw/5:-1[v5];[6:v]tpad=start_duration=3,scale=iw/5:-1[v6];[7:v]tpad=start_duration=3,scale=iw/5:-1[v7];[8:v]tpad=start_duration=3,scale=iw/5:-1[v8];[0:a]adelay=3s:all=true[a0];[1:a]adelay=3s:all=true[a1];[2:a]adelay=3s:all=true[a2];[4:a]adelay=0s:all=true[a4];[5:a]adelay=3s:all=true[a5];[6:a]adelay=3s:all=true[a6];[7:a]adelay=3s:all=true[a7];[8:a]adelay=3s:all=true[a8];[v0][v1][v2][v3][v4][v5][v6][v7][v8]xstack=inputs=9:layout=0_0|0_h0|0_h0+h1|w0_0|w0_h0|w0_h0+h1|w0+w4_0|w0+w4_h0|w0+w4_h0+h1;[a0][a1][a2][3:a][a4][a5][a6][a7][a8]amix=inputs=9" output.mp4

Displaying 25 inputs into a 5x5 grid using -ffmpeg- with the correct layout code

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ffmpeg -i a.mp4 -i b.mp4 -i c.mp4 -i d.mp4 -i e.mp4 -i f.mp4 -i g.mp4 -i h.mp4 -i i.mp4 -i j.mp4 -i k.mp4 -i l.mp4 -i m.mp4 -i n.mp4 -i o.mp4 -i p.mp4 -i q.mp4 -i r.mp4 -i s.mp4 -i t.mp4 -i u.mp4 -i v.mp4 -i w.mp4 -i x.mp4 -i y.mp4 \
 -filter_complex \
    "[0:v]scale=iw/5:-1[v0];[1:v]scale=iw/5:-1[v1];[2:v]scale=iw/5:-1[v2]; \
     [3:v]scale=iw/5:-1[v3];[4:v]scale=iw/5:-1[v4];[5:v]scale=iw/5:-1[v5]; \
     [6:v]scale=iw/5:-1[v6];[7:v]scale=iw/5:-1[v7];[8:v]scale=iw/5:-1[v8]; \
     [9:v]scale=iw/5:-1[v9];[10:v]scale=iw/5:-1[v10];[11:v]scale=iw/5:-1[v11]; \
     [12:v]scale=iw/5:-1[v12];[13:v]scale=iw/5:-1[v13];[14:v]scale=iw/5:-1[v14]; \
     [15:v]scale=iw/5:-1[v15];[16:v]scale=iw/5:-1[v16];[17:v]scale=iw/5:-1[v17]; \
     [18:v]scale=iw/5:-1[v18];[19:v]scale=iw/5:-1[v19];[20:v]scale=iw/5:-1[v20]; \
     [21:v]scale=iw/5:-1[v21];[22:v]scale=iw/5:-1[v22];[23:v]scale=iw/5:-1[v23]; \
     [24:v]scale=iw/5:-1[v24]; \
     [v0][v1][v2][v3][v4][v5][v6][v7][v8][v9][v10][v11][v12][v13][v14][v15][v16][v17][v18][v19][v20][v21][v22][v23][v24]xstack=inputs=25:layout=0_0|0_h0|0_h0+h1|0_h0+h1+h2|0_h0+h1+h2+h3|w0_0|w0_h0|w0_h0+h1|w0_h0+h1+h2|w0_h0+h1+h2+h3|w0+w4_0|w0+w4_h0|w0+w4_h0+h1|w0+w4_h0+h1+h2|w0+w4_h0+h1+h2+h3|w0+w4+w8_0|w0+w4+w8_h0|w0+w4+w8_h0+h1|w0+w4+w8_h0+h1+h2|w0+w4+w8_h0+h1+h2+h3|w0+w4+w8+w12_0|w0+w4+w8+w12_h0|w0+w4+w8+w12_h0+h1|w0+w4+w8+w12_h0+h1+h2|w0+w4+w8+w12_h0+h1+h2+h3; \
     [0:a][1:a][2:a][3:a][4:a][5:a][6:a][7:a][8:a][9:a][10:a][11:a][12:a][13:a][14:a][15:a][16:a][17:a][18:a][19:a][20:a][21:a][22:a][23:a][24:a]amix=inputs=25" \
output.mp4

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Community Discussions

Trending Discussions on chromaprint

ffmpeg copy codec outputs in slowmotion
ffmpeg - Lower volume of background music for dialog in a video
ffmpeg error "output file #0 does not contain any stream" with FORFILES
Inconsistent frame number with ffmpeg
ffmpeg - script to extract 1st frame of each second with deinterlacing
Apache mpm event shared memory error - ffmpeg-python Error while opening encoder for output stream #0:1 when accessed by multiple instances
ffmpeg stops encoding after two frames
cvlc cannot play rtsp (omxplayer instead can)
Video colour difference when publishing via ffmpeg
ffmpeg: Could not find tag for codec none in stream #1, codec not currently supported in container

Trending Discussions on chromaprint

QUESTION

ffmpeg copy codec outputs in slowmotion

Asked 2022-Apr-08 at 00:16

i have the following scenario that is driving me crazy:

i have a capture device. Here the ffprobe on it:

pi@skycam:~ $ ffprobe /dev/video0
ffprobe version 4.1.6-1~deb10u1+rpt2 Copyright (c) 2007-2020 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --libdir=/usr/lib/arm-linux-gnueabihf --cpu=arm1176jzf-s --arch=arm
  WARNING: library configuration mismatch
  avutil      configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  avcodec     configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  avformat    configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  avdevice    configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  avfilter    configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  avresample  configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  swscale     configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  swresample  configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  postproc    configuration: --prefix=/usr --extra-version='1~deb10u1+rpt2' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-vout-drm --enable-v4l2-request --enable-libudev --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --libdir=/usr/lib/arm-linux-gnueabihf/neon/vfp --cpu=cortex-a7 --arch=armv6t2 --disable-thumb --enable-shared --disable-doc --disable-programs
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[mjpeg @ 0x18a79b0] No JPEG data found in image
[mjpeg @ 0x18a79b0] Found EOI before any SOF, ignoring
[mjpeg @ 0x18a79b0] No JPEG data found in image
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 3716.774220, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1920x1080, 60 fps, 60 tbr, 1000k tbn, 1000k tbc

now i want to record via FFMPEG as smooth as possible.

therefore i tested and the following command is giving me a good result:

ffmpeg -r 60 -an -i /dev/video0 -preset ultrafast -vcodec copy test.mjpeg

but the problem is, i get the result in slowmotion. it seems like the mjpeg file is played back in VLC in half speed. Why is this happening?

thanks a lot, cheers Rudi

edit: here the output:

[mjpeg @ 0x762250] No JPEG data found in image
[mjpeg @ 0x762250] Found EOI before any SOF, ignoring
[mjpeg @ 0x762250] No JPEG data found in image
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 5174.036617, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1920x1080, 60 fps, 60 tbr, 1000k tbn, 1000k tbc
Output #0, mjpeg, to '/home/pi/java_workspace/skycam_data/test14.mjpeg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1920x1080, q=2-31, 60 fps, 60 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame=   33 fps=0.0 q=-1.0 size=    2560kB time=00:00:00.51 bitrate=40952.2kbits/s speed=1.01x    
frame=   63 fps= 63 q=-1.0 size=    5120kB time=00:00:01.01 bitrate=41434.6kbits/s speed=   1x    
frame=   94 fps= 62 q=-1.0 size=    7680kB time=00:00:01.53 bitrate=41062.1kbits/s speed=1.01x    
frame=  124 fps= 61 q=-1.0 size=   10496kB time=00:00:02.03 bitrate=42309.4kbits/s speed=1.01x    
frame=  154 fps= 61 q=-1.0 size=   13568kB time=00:00:02.53 bitrate=43890.8kbits/s speed=   1x    
frame=  184 fps= 61 q=-1.0 size=   17152kB time=00:00:03.03 bitrate=46334.8kbits/s speed=   1x    
frame=  214 fps= 61 q=-1.0 size=   20736kB time=00:00:03.53 bitrate=48087.4kbits/s speed=   1x    
frame=  245 fps= 61 q=-1.0 size=   25088kB time=00:00:04.04 bitrate=50763.2kbits/s speed=   1x

output of ffplay on the same file:

./ffplay test14.mjpeg 
ffplay version N-106494-g1291568c98-tessus Copyright (c) 2003-2022 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --enable-librtmp --enable-ffplay --enable-sdl2 --disable-ffmpeg --disable-ffprobe
  libavutil      57. 24.101 / 57. 24.101
  libavcodec     59. 25.100 / 59. 25.100
  libavformat    59. 20.101 / 59. 20.101
  libavdevice    59.  6.100 / 59.  6.100
  libavfilter     8. 30.100 /  8. 30.100
  libswscale      6.  6.100 /  6.  6.100
  libswresample   4.  6.100 /  4.  6.100
  libpostproc    56.  5.100 / 56.  5.100
[mjpeg @ 0x7fd70be22500] Format mjpeg detected only with low score of 12, misdetection possible!
[mjpeg @ 0x7fd70be2bfc0] Found EOI before any SOF, ignoring
Input #0, mjpeg, from 'test14.mjpeg':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: mjpeg (Baseline), yuvj422p(pc, bt470bg/unknown/unknown), 1920x1080, 25 tbr, 1200k tbn
[mjpeg @ 0x7fd70bd91600] Found EOI before any SOF, ignoring
[swscaler @ 0x7fd70e043000] [swscaler @ 0x7fd70e7eb000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd70e043000] [swscaler @ 0x7fd70f923000] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd70e043000] [swscaler @ 0x7fd70f932000] deprecated pixel format used, make sure you did set range correctly

ANSWER

Answered 2022-Apr-08 at 00:16

*.mjpeg is a raw stream format. FFmpeg documentation states of raw muxers: "They do not store timestamps or metadata." So, instead try storing the data in an mp4 container:

ffmpeg -r 60 -an -i /dev/video0 -vcodec copy test.mp4

Source https://stackoverflow.com/questions/71783986

QUESTION

ffmpeg - Lower volume of background music for dialog in a video

Asked 2022-Mar-09 at 16:36

I have a video with some background music in it.

I wish to add a piece of spoken dialogue at a particular location in the video, such that the background music is lowered for the entire duration of the dialogue audio.

I found a similar solution using sidechaincompress, which just works for mp3. I made some changes to it so that it includes the video too (-map 0:v). However, now the audio is cut short as soon as the dialogue ends.

ffmpeg -i video-with-bg-music.mp4 -i dialogue.mp3 -c:v libx264 -filter_complex "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];[bg][mix]amerge[final]" -map 0:v -map [final] final.mp4

I am not a pro at using ffmpeg and probably don't know what's going on with the filter_complex. Please help me out.

EDIT:

Output log for solution suggested by @kesh

ffmpeg -i video_bg.mp4 -i dialogues.mp3 -filter_complex "[1:a]adelay=0,apad,asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];[bg][mix]amix=duration=shortest[out]" -map 0:v -map [out] video_bg_speech.mp4
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video_bg.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:01:50.12, start: 0.000000, bitrate: 157 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x1280 [SAR 1:1 DAR 9:16], 146 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[mp3 @ 0x5577fa3b6740] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'dialogue.mp3':
  Duration: 00:00:17.33, start: 0.000000, bitrate: 32 kb/s
    Stream #1:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
File 'video_bg_speech.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:1 (aac) -> sidechaincompress:main (graph 0)
  Stream #1:0 (mp3float) -> adelay (graph 0)
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  amix (graph 0) -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
[libx264 @ 0x5577fa446040] using SAR=1/1
[libx264 @ 0x5577fa446040] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x5577fa446040] profile High, level 3.1
[libx264 @ 0x5577fa446040] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[Parsed_sidechaincompress_3 @ 0x5577faed3f00] No channel layout for input 1
Output #0, mp4, to 'video_bg_speech.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 720x1280 [SAR 1:1 DAR 9:16], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 69 kb/s (default)
    Metadata:
      encoder         : Lavc58.54.100 aac
frame=  480 fps=325 q=-1.0 Lsize=     517kB time=00:00:19.87 bitrate= 213.0kbits/s speed=13.5x    
video:353kB audio:152kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.388190%
[libx264 @ 0x5577fa446040] frame I:2     Avg QP:15.99  size:136135
[libx264 @ 0x5577fa446040] frame P:121   Avg QP:16.86  size:   603
[libx264 @ 0x5577fa446040] frame B:357   Avg QP:26.34  size:    43
[libx264 @ 0x5577fa446040] consecutive B-frames:  0.6%  0.4%  0.6% 98.3%
[libx264 @ 0x5577fa446040] mb I  I16..4:  2.3% 65.7% 32.1%
[libx264 @ 0x5577fa446040] mb P  I16..4:  0.0%  0.1%  0.1%  P16..4:  1.1%  0.1%  0.1%  0.0%  0.0%    skip:98.5%
[libx264 @ 0x5577fa446040] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:55.5% L1:44.5% BI: 0.0%
[libx264 @ 0x5577fa446040] 8x8 transform intra:62.5% inter:56.6%
[libx264 @ 0x5577fa446040] coded y,uvDC,uvAC intra: 89.6% 89.0% 78.7% inter: 0.0% 0.1% 0.0%
[libx264 @ 0x5577fa446040] i16 v,h,dc,p: 37%  5%  8% 50%
[libx264 @ 0x5577fa446040] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 16%  6%  6%  9%  9%  9% 10%  9%
[libx264 @ 0x5577fa446040] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 18%  7%  6% 11%  9%  9%  7%  7%
[libx264 @ 0x5577fa446040] i8c dc,h,v,p: 42% 22% 20% 15%
[libx264 @ 0x5577fa446040] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x5577fa446040] ref P L0: 46.3%  2.9% 19.3% 31.5%
[libx264 @ 0x5577fa446040] ref B L0: 45.6% 54.0%  0.4%
[libx264 @ 0x5577fa446040] ref B L1: 97.0%  3.0%
[libx264 @ 0x5577fa446040] kb/s:144.26
[aac @ 0x5577fa3b9940] Qavg: 307.060

ANSWER

Answered 2022-Mar-09 at 16:36

Try this (the short clip inserted at 3-second mark):

[1:a]aresample=44100,adelay=3000,apad,asplit=2[sc][mix];\
[0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
[bg][mix]amix=duration=shortest[out]

aresample to match the dialog's sampling rate to the video's.
adelay places the clip at the right position (note the delay is in millisec)
apad extends the short stream indefinitely with silence
amix combines 2 streams and stops when the video audio ends

Addendum:

If mp4 has no audio, try:

ffmpeg -i video-with-bg-music.mp4 -i dialogue.mp3 \
  -af [1:a]adelay=3000,apad \
  -shortest final.mp4

apad in the audio filtergraph extends the audio stream, and -shortest output option cuts it off when the video stream ends.

Debug Sample

ffmpeg -filter_complex \
    [1:a]aresample=44100,apad,asplit=2[sc][mix];\
    [0:a][sc]sidechaincompress=threshold=0.003:ratio=20[bg];\
    [bg][mix]amix=duration=shortest[out] \
  -f lavfi -i anoisesrc=d=60:c=pink:r=44100:a=0.5 \
  -f lavfi -i sine=220:4:d=5 \
  -map [out] output.mp3

Source https://stackoverflow.com/questions/71383922

QUESTION

ffmpeg error "output file #0 does not contain any stream" with FORFILES

Asked 2022-Feb-03 at 22:07

I'm trying to convert all the songs in a folder from flac to alac. All the files in the folder are flac.

What I'm writing:

FORFILES /M *.* /C "ffmpeg -i @fname.flac -c:v copy -c:a alac @fname.m4a"

And the error:

ffmpeg version 2022-01-13-git-c936c319bd-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 11.2.0 (Rev5, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      57. 18.100 / 57. 18.100
  libavcodec     59. 20.100 / 59. 20.100
  libavformat    59. 17.100 / 59. 17.100
  libavdevice    59.  5.100 / 59.  5.100
  libavfilter     8. 25.100 /  8. 25.100
  libswscale      6.  5.100 /  6.  5.100
  libswresample   4.  4.100 /  4.  4.100
  libpostproc    56.  4.100 / 56.  4.100
Output #0, flac, to '01 リビングデッド･ユース.flac':
Output file #0 does not contain any stream

ANSWER

Answered 2022-Feb-03 at 22:07

The forfiles command is a nasty beast, because there are several caveats:

it is slow (particularly because it cannot run internal commands of the hosting command prompt);
it handles wildcards differently than most other commands, hence /M *.* does not match all files but only such with an extension; to really match all files, use /M * or skip it since it is the default anyway;
it applies backslash-escaping, which is particularly annoying with paths ending in \, like the root directory of a drive /P "D:\", which causes a syntax error since the closing quotation mark is considered as escaped; to work around that, preferably append a . like /P "D:\.", or remove the quotation marks like /P D:\, though this exposes potential whitespaces or special characters to the parser;
all of the special @-variables that return the path and/or name of iterated items provide the values in quoted manner, which is particularly frustrating when it comes to concatenation;
it iterates over both files and directories that match the given mask; to distinguish between them you could use the special @isdir variable, but you will need an if statement for this (like if @isdir==FALSE or if @isdir==TRUE), which is an internal cmd.exe command, requiring its explicit instantiation even when you would not need it else;
handling of the command behind /C and its arguments is terribly implemented, leading to the problem that directly running external commands (so without cmd /C) may fail, unless you are aware of the mostly working fix by stating the command name twice (like /C "command.exe command.exe --parameter argument");
even its basically nice /D option (which is the only reason why forfiles might suit better than for) to filter for the relative last modification date (but not time) is badly implemented when a positive number (like /D +1) is used, because this uselessly points to the future;

All of these issues lead me to the point that I suggest not to use forfiles and to use a standard for loop instead, like this (note also the changed mask *.flac):

In a batch-file:

  rem // Loop through all `*.flac` files in the current working directory:
  for %%I in ("*.flac") do (
      rem // The `~`-modifiers remove quotes and extract path/name parts:
      ffmpeg -i "%%~I" -c:v copy -c:a alac "%%~nI.m4a"
  )

In cmd:

  for %I in ("*.flac") do @ffmpeg -i "%~I" -c:v copy -c:a alac "%~nI.m4a"

The ~n-modifier expands to the base name with the extension .flac removed.

If you do insist in using forfiles, then apply it like this:

forfiles /M "*.flac" /C "ffmpeg ffmpeg -i @file -c:v copy -c:a alac @fname.m4a"

This actually specifies for the output file a quoted base name followed by the new extension, like "video".m4a, for example, though there seems to be some kind of auto-correction involved so that such a name is accepted.

Source https://stackoverflow.com/questions/70781120

QUESTION

Inconsistent frame number with ffmpeg

Asked 2022-Jan-16 at 00:46

I'm having regularly issue with hvc1 videos getting an inconsistent number of frames between ffprobe info and FFmpeg info, and I would like to know what could be the reason for this issue and how if it's possible to solve it without re-encoding the video.

I wrote the following sample script with a test video I have

I split the video into 5-sec segments and I get ffprobe giving the expected video length but FFmpeg gave 3 frames less than expected on every segment but the first one.

The issue is exactly the same if I split by 10 seconds or any split, I always lose 3 frames.

I noted that the first segment is always 3 frames smaller (on ffprobe) than the other ones and it's the only consistent one.

Here is an example script I wrote to test this issue :

# get total video frame number using ffprobe or ffmpeg
total_num_frames=$(ffprobe -v quiet -show_entries stream=nb_read_packets -count_packets -select_streams v:0 -print_format json test_video.mp4 | jq '.streams[0].nb_read_packets' | tr -d '"')
echo $total_num_frames
ffmpeg -hwaccel cuda -i test_video.mp4 -vsync 2 -f null -

# Check ffprobe of each segment is consistent 
rm -rf clips && mkdir clips && \
ffmpeg -i test_video.mp4 -acodec copy -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 -map 0 clips/part_%d.mp4
count_frames=0
for i in {0..5}
do
    num_packets=$(ffprobe -v quiet -show_entries stream=nb_read_packets -count_packets -select_streams v:0 -print_format json clips/part_$i.mp4 | jq '.streams[0].nb_read_packets' | tr -d '"')
    count_frames=$(($count_frames+$num_packets))
    echo $num_packets $count_frames $total_num_frames
done

Output is the following

3597
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf58.29.100
  Duration: 00:00:59.95, start: 0.035000, bitrate: 11797 kb/s
    Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 1920x1080, 11692 kb/s, 60.01 fps, 60 tbr, 19200 tbn, 19200 tbc (default)
    Metadata:
      handler_name    : Core Media Video
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 91 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> wrapped_avframe (native))
  Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, null, to 'pipe:':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf58.29.100
    Stream #0:0(und): Video: wrapped_avframe, nv12, 1920x1080, q=2-31, 200 kb/s, 60 fps, 60 tbn, 60 tbc (default)
    Metadata:
      handler_name    : Core Media Video
      encoder         : Lavc58.54.100 wrapped_avframe
    Stream #0:1(und): Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      encoder         : Lavc58.54.100 pcm_s16le
frame= 3597 fps=788 q=-0.0 Lsize=N/A time=00:00:59.95 bitrate=N/A speed=13.1x    
video:1883kB audio:5162kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

then

297 297 3597
300 597 3597
300 897 3597
300 1197 3597
300 1497 3597
300 1797 3597 <--- output are consistent based on ffprobe

But then if i check segment size with ffmpeg with the following command

ffmpeg -hwaccel cuda -i clips/part_$i.mp4 -vsync 2 -f null -

for part 0 its ok

frame=  297 fps=0.0 q=-0.0 Lsize=N/A time=00:00:04.95 bitrate=N/A speed=12.5x    
video:155kB audio:424kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

for all other parts it's inconsistent and should be 300

frame=  297 fps=0.0 q=-0.0 Lsize=N/A time=00:00:04.95 bitrate=N/A speed=12.3x    
video:155kB audio:423kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

The issue is exactly the same with any other interval size, e.g with 10 seconds I would get the following video size:

ffprobe 597 - 600 ...
ffmpeg 597 597 ...

I thought it could be related to source vfr or cfr but I tried to convert the input to cfr and nothing changed.

Moreover, I tried to force the keyframe every second to check if it was a keyframe issue with the following arg: -force_key_frames "expr:gte(t,n_forced*1)", but the problem is exactly the same.

What am I doing wrong? it happens to me a lot with files in hvc1 and I really don't know how to deal with that.

ANSWER

Answered 2022-Jan-11 at 22:08

The source of the differences is that FFprobe counts the discarded packets, and FFmpeg doesn't count the discarded packets as frames.

Your results are consistent with video stream that is created with 3 B-Frames (3 consecutive B-Frames for every P-Frame or I-Frame).

According to Wikipedia:

I‑frames are the least compressible but don't require other video frames to decode.
P‑frames can use data from previous frames to decompress and are more compressible than I‑frames.
B‑frames can use both previous and forward frames for data reference to get the highest amount of data compression.

When splitting a video with P-Frame and B-Frame into segments without re-encoding, the dependency chain breaks.

There are (almost) always frames that depends upon frames from the previous segment or the next segment.
The above frames are kept, but the matching packets are marked as "discarded" (marked with AV_PKT_FLAG_DISCARD flag).

For the purpose of working on the same dataset, we my build synthetic video (to be used as input).

Building synthetic video with the following command:

ffmpeg -y -r 60 -f lavfi -i testsrc=size=384x256:rate=1 -vf "setpts=N/60/TB" -g 60 -vcodec libx265 -x265-params crf=28:bframes=3:b-adapt=0 -tag:v hvc1 -pix_fmt yuv420p -t 20 test_video.mp4

-g 60 set GOP size to 60 frames (insert a key frame every 60 frames).
bframes=3:b-adapt=0 force 3 consecutive B-Frames.

For verifying the number of I/P/B frames, we may use FFprobe:

ffprobe -i test_video.mp4 -show_frames -show_entries frame=pict_type

The output is like:

pict_type=I
pict_type=B
pict_type=B
pict_type=B
pict_type=P
pict_type=B
pict_type=B
pict_type=B
...

Segment the video by time (5 seconds per segment):

ffmpeg -i test_video.mp4 -f segment -vcodec copy -reset_timestamps 1 -segment_time 5 clips/part_%d.mp4

FFprobe counting:
297 1497 1200
300 1797 1200
300 2097 1200
303 2400 1200

FFmpeg counting:
frame= 297
frame= 297
frame= 297
frame= 300

As you can see, the result is consistent with your output.

We may identify the "discarded" packets using FFprobe:

ffprobe -i part_1.mp4 -show_packets

Look for flags=_D.
Packet with flags=_D is marked as "discarded"
Note: In a video stream every packet matches a frame.

FFprobe output begins with:
flags=K_
flags=_D
flags=_D
flags=_D
flags=__
flags=__
flags=__
...

For every middle segment, 3 packets are marked as "discarded", and that is the reason for the 3 missing frames in FFmpeg compared to FFprobe.

Source https://stackoverflow.com/questions/70578206

QUESTION

ffmpeg - script to extract 1st frame of each second with deinterlacing

Asked 2021-Dec-22 at 04:45

i'm trying to write a shell script to analyse some videos by using the first frame of each second of video as a basis. i'm using ffmpeg to extract the frames. i thought i'd hit gold when this thread came up in my searches, but it doesn't handle the deinterlacing.

i'm using a time-based approach that works well for various formats as long as the video is progressive. it doesn't work so well for interlaced video (only the first field is output in that case, creating a half-height image). i've tried various combinations of deinterlacing (yadif/bwdif) with select but the filter chains i create either cause errors or still return a half-sized image.

here is my call w/a filter that works correctly for progressive video source :
ffmpeg -i $infile -vf "select='if(eq(n\,0),1,floor(t)-floor(prev_selected_t))" -vsync 0 $outfile

the following still return only half-height images for interlaced source :
... -vf "bwdif=0,select='if(eq(n\,0),1,floor(t)-floor(prev_selected_t))'"

... -vf "bwdif=0,select='between(mod(n\,$ips)\,1\,2)'" -- $ips is images per second

... -vf "select='between(mod(n\,$ips)\,1\,2)',bwdif=0"

i've also tried various permutations of the above w/explicit frame reference (-r, -vframes, ...), still no joy.

can someone help me with the syntax ?

--EDIT--
here is the complete output of running the command with the first filter :

ffmpeg version N-104925-gfe95731e3d-g68457c1e85+3 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11.2.0 (Rev5, Built by MSYS2 project)
  configuration:  --pkg-config=pkgconf --cc='ccache gcc' --cxx='ccache g++' --ld='ccache g++' --disable-autodetect --enable-amf --enable-bzlib --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-iconv --enable-lzma --enable-nvenc --enable-zlib --enable-sdl2 --enable-ffnvcodec --enable-nvdec --enable-cuda-llvm --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libdav1d --enable-libaom --disable-debug --enable-libfdk-aac --enable-fontconfig --enable-libass --enable-libbluray --enable-libfreetype --enable-libmfx --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libwebp --enable-libxml2 --enable-libzimg --enable-libshine --enable-gpl --enable-avisynth --enable-libxvid --enable-libopenmpt --enable-version3 --enable-librav1e --enable-libsrt --enable-libgsm --enable-libvmaf --enable-libsvtav1 --enable-chromaprint --enable-decklink --enable-frei0r --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfribidi --enable-libgme --enable-libilbc --enable-libsvthevc --enable-libsvtvp9 --enable-libkvazaar --enable-libmodplug --enable-librist --enable-librtmp --enable-librubberband --enable-libtesseract --enable-libxavs --enable-libzmq --enable-libzvbi --enable-openal --enable-libcodec2 --enable-ladspa --enable-libglslang --enable-vulkan --enable-libdavs2 --enable-libxavs2 --enable-libuavs3d --enable-opencl --enable-opengl --enable-libopenh264 --enable-openssl --extra-cflags=-DLIBTWOLAME_STATIC --extra-libs=-lstdc++ --extra-cflags=-DCACA_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-cflags=-DCHROMAPRINT_NODLL --extra-libs=-lstdc++ --extra-cflags=-DZMQ_STATIC --extra-libs=-lpsapi --extra-cflags=-DLIBXML_STATIC --extra-libs=-liconv --disable-w32threads --extra-cflags=-DKVZ_STATIC_LIB --enable-nonfree --extra-cflags=-DAL_LIBTYPE_STATIC --extra-cflags='-IC:/ffab/local64/include' --extra-cflags='-IC:/ffab/local64/include/AL'
  libavutil      57. 11.100 / 57. 11.100
  libavcodec     59. 14.100 / 59. 14.100
  libavformat    59. 10.100 / 59. 10.100
  libavdevice    59.  0.101 / 59.  0.101
  libavfilter     8. 20.100 /  8. 20.100
  libswscale      6.  1.101 /  6.  1.101
  libswresample   4.  0.100 /  4.  0.100
  libpostproc    56.  0.100 / 56.  0.100
Passing a number to -vsync is deprecated, use a string argument as described in the manual.
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, mxf, from 'mire-720-576-16-9.mxf':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
    uid             : adab4424-2f25-4dc7-92ff-29bd000c0000
    generation_uid  : adab4424-2f25-4dc7-92ff-29bd000c0001
    company_name    : FFmpeg
    product_name    : OP1a Muxer
    product_version_num: 58.38.100.0.0
    product_version : 58.38.100
    toolkit_version_num: 58.38.100.0.0
    material_package_umid: 0x060A2B340101010501010D001375063852947134C97506380052947134C97500
    timecode        : 00:00:00:00
  Duration: 00:02:00.00, start: 0.000000, bitrate: 55987 kb/s
  Stream #0:0: Video: jpeg2000, yuv422p10le(top first), 720x288, lossless, SAR 32:45 DAR 16:9, 50 tbr, 50 tbn
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001375063852947134C97506380052947134C97501
      track_name      : Picture
  Stream #0:1: Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001375063852947134C97506380052947134C97501
      track_name      : Sound
Stream mapping:
  Stream #0:0 -> #0:0 (jpeg2000 (native) -> png (native))
Press [q] to stop, [?] for help
Output #0, image2, to 'testout%04d.png':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
    uid             : adab4424-2f25-4dc7-92ff-29bd000c0000
    generation_uid  : adab4424-2f25-4dc7-92ff-29bd000c0001
    timecode        : 00:00:00:00
    material_package_umid: 0x060A2B340101010501010D001375063852947134C97506380052947134C97500
    product_version_num: 58.38.100.0.0
    toolkit_version_num: 58.38.100.0.0
    encoder         : Lavf59.10.100
  Stream #0:0: Video: png, rgb48be(pc, gbr/unknown/unknown, progressive), 720x288 [SAR 32:45 DAR 16:9], q=2-31, 200 kb/s, 50 fps, 50 tbn
    Metadata:
      file_package_umid: 0x060A2B340101010501010D001375063852947134C97506380052947134C97501
      track_name      : Picture
      encoder         : Lavc59.14.100 png
frame=    1 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    2 fps=1.8 q=-0.0 size=N/A time=00:00:00.02 bitrate=N/A speed=0.0177x    
frame=    3 fps=1.8 q=-0.0 size=N/A time=00:00:01.02 bitrate=N/A speed=0.617x    
frame=    4 fps=1.9 q=-0.0 size=N/A time=00:00:02.02 bitrate=N/A speed=0.938x    
frame=    5 fps=1.9 q=-0.0 size=N/A time=00:00:03.02 bitrate=N/A speed=1.13x    
frame=    6 fps=1.9 q=-0.0 size=N/A time=00:00:04.02 bitrate=N/A speed=1.26x    
frame=    6 fps=1.6 q=-0.0 size=N/A time=00:00:04.02 bitrate=N/A speed=1.09x    
frame=    7 fps=1.7 q=-0.0 size=N/A time=00:00:05.02 bitrate=N/A speed=1.19x    
frame=    8 fps=1.7 q=-0.0 size=N/A time=00:00:06.02 bitrate=N/A speed=1.27x    
frame=    9 fps=1.7 q=-0.0 size=N/A time=00:00:07.02 bitrate=N/A speed=1.33x    
frame=   10 fps=1.7 q=-0.0 size=N/A time=00:00:08.02 bitrate=N/A speed=1.38x    
frame=   11 fps=1.7 q=-0.0 size=N/A time=00:00:09.02 bitrate=N/A speed=1.43x    
frame=   12 fps=1.8 q=-0.0 size=N/A time=00:00:10.02 bitrate=N/A speed=1.47x    
frame=   13 fps=1.8 q=-0.0 size=N/A time=00:00:11.02 bitrate=N/A speed= 1.5x    
frame=   14 fps=1.8 q=-0.0 size=N/A time=00:00:12.02 bitrate=N/A speed=1.53x    
frame=   15 fps=1.8 q=-0.0 size=N/A time=00:00:13.02 bitrate=N/A speed=1.56x    
frame=   16 fps=1.8 q=-0.0 size=N/A time=00:00:14.02 bitrate=N/A speed=1.58x    
frame=   17 fps=1.8 q=-0.0 size=N/A time=00:00:15.02 bitrate=N/A speed= 1.6x    
frame=   18 fps=1.8 q=-0.0 size=N/A time=00:00:16.02 bitrate=N/A speed=1.62x    
frame=   19 fps=1.8 q=-0.0 size=N/A time=00:00:17.02 bitrate=N/A speed=1.63x    
frame=   20 fps=1.8 q=-0.0 size=N/A time=00:00:18.02 bitrate=N/A speed=1.64x    
frame=   21 fps=1.8 q=-0.0 size=N/A time=00:00:19.02 bitrate=N/A speed=1.65x    
frame=   22 fps=1.8 q=-0.0 size=N/A time=00:00:20.02 bitrate=N/A speed=1.66x    
frame=   22 fps=1.8 q=-0.0 size=N/A time=00:00:20.02 bitrate=N/A speed=1.59x    
frame=   24 fps=1.8 q=-0.0 size=N/A time=00:00:22.02 bitrate=N/A speed=1.69x    
frame=   25 fps=1.8 q=-0.0 size=N/A time=00:00:23.02 bitrate=N/A speed= 1.7x    
frame=   25 fps=1.8 q=-0.0 size=N/A time=00:00:23.02 bitrate=N/A speed=1.64x    
frame=   26 fps=1.8 q=-0.0 size=N/A time=00:00:24.02 bitrate=N/A speed=1.65x    
frame=   27 fps=1.8 q=-0.0 size=N/A time=00:00:25.02 bitrate=N/A speed=1.66x    
frame=   28 fps=1.8 q=-0.0 size=N/A time=00:00:26.02 bitrate=N/A speed=1.67x    
frame=   29 fps=1.8 q=-0.0 size=N/A time=00:00:27.02 bitrate=N/A speed=1.68x    
frame=   30 fps=1.8 q=-0.0 size=N/A time=00:00:28.02 bitrate=N/A speed=1.68x    
frame=   31 fps=1.8 q=-0.0 size=N/A time=00:00:29.02 bitrate=N/A speed=1.69x    
frame=   32 fps=1.8 q=-0.0 size=N/A time=00:00:30.02 bitrate=N/A speed= 1.7x    
frame=   33 fps=1.8 q=-0.0 size=N/A time=00:00:31.02 bitrate=N/A speed= 1.7x    
frame=   34 fps=1.8 q=-0.0 size=N/A time=00:00:32.02 bitrate=N/A speed=1.71x    
frame=   35 fps=1.8 q=-0.0 size=N/A time=00:00:33.02 bitrate=N/A speed=1.72x    
frame=   36 fps=1.8 q=-0.0 size=N/A time=00:00:34.02 bitrate=N/A speed=1.72x    
frame=   37 fps=1.8 q=-0.0 size=N/A time=00:00:35.02 bitrate=N/A speed=1.73x    
frame=   37 fps=1.8 q=-0.0 size=N/A time=00:00:35.02 bitrate=N/A speed=1.69x    
frame=   38 fps=1.8 q=-0.0 size=N/A time=00:00:36.02 bitrate=N/A speed=1.69x    
frame=   39 fps=1.8 q=-0.0 size=N/A time=00:00:37.02 bitrate=N/A speed= 1.7x    
frame=   40 fps=1.8 q=-0.0 size=N/A time=00:00:38.02 bitrate=N/A speed= 1.7x    
frame=   41 fps=1.8 q=-0.0 size=N/A time=00:00:39.02 bitrate=N/A speed=1.71x    
frame=   42 fps=1.8 q=-0.0 size=N/A time=00:00:40.02 bitrate=N/A speed=1.71x    
frame=   43 fps=1.8 q=-0.0 size=N/A time=00:00:41.02 bitrate=N/A speed=1.72x    
frame=   44 fps=1.8 q=-0.0 size=N/A time=00:00:42.02 bitrate=N/A speed=1.72x    
frame=   45 fps=1.8 q=-0.0 size=N/A time=00:00:43.02 bitrate=N/A speed=1.73x    
frame=   46 fps=1.8 q=-0.0 size=N/A time=00:00:44.02 bitrate=N/A speed=1.73x    
frame=   47 fps=1.8 q=-0.0 size=N/A time=00:00:45.02 bitrate=N/A speed=1.74x    
frame=   48 fps=1.8 q=-0.0 size=N/A time=00:00:46.02 bitrate=N/A speed=1.74x    
frame=   49 fps=1.8 q=-0.0 size=N/A time=00:00:47.02 bitrate=N/A speed=1.75x    
frame=   50 fps=1.8 q=-0.0 size=N/A time=00:00:48.02 bitrate=N/A speed=1.75x    
frame=   50 fps=1.8 q=-0.0 size=N/A time=00:00:48.02 bitrate=N/A speed=1.72x    
frame=   51 fps=1.8 q=-0.0 size=N/A time=00:00:49.02 bitrate=N/A speed=1.72x    
frame=   52 fps=1.8 q=-0.0 size=N/A time=00:00:50.02 bitrate=N/A speed=1.73x    
frame=   53 fps=1.8 q=-0.0 size=N/A time=00:00:51.02 bitrate=N/A speed=1.73x    
frame=   54 fps=1.8 q=-0.0 size=N/A time=00:00:52.02 bitrate=N/A speed=1.73x    
frame=   55 fps=1.8 q=-0.0 size=N/A time=00:00:53.02 bitrate=N/A speed=1.74x    
frame=   56 fps=1.8 q=-0.0 size=N/A time=00:00:54.02 bitrate=N/A speed=1.74x    
frame=   57 fps=1.8 q=-0.0 size=N/A time=00:00:55.02 bitrate=N/A speed=1.75x    
frame=   58 fps=1.8 q=-0.0 size=N/A time=00:00:56.02 bitrate=N/A speed=1.75x    
frame=   60 fps=1.8 q=-0.0 size=N/A time=00:00:58.02 bitrate=N/A speed=1.78x    
frame=   61 fps=1.8 q=-0.0 size=N/A time=00:00:59.02 bitrate=N/A speed=1.79x    
frame=   63 fps=1.9 q=-0.0 size=N/A time=00:01:01.02 bitrate=N/A speed=1.82x    
frame=   64 fps=1.9 q=-0.0 size=N/A time=00:01:02.02 bitrate=N/A speed=1.82x    
frame=   65 fps=1.9 q=-0.0 size=N/A time=00:01:03.02 bitrate=N/A speed=1.82x    
frame=   67 fps=1.9 q=-0.0 size=N/A time=00:01:05.02 bitrate=N/A speed=1.85x    
frame=   68 fps=1.9 q=-0.0 size=N/A time=00:01:06.02 bitrate=N/A speed=1.86x    
frame=   69 fps=1.9 q=-0.0 size=N/A time=00:01:07.02 bitrate=N/A speed=1.86x    
frame=   71 fps=1.9 q=-0.0 size=N/A time=00:01:09.02 bitrate=N/A speed=1.89x    
frame=   72 fps=1.9 q=-0.0 size=N/A time=00:01:10.02 bitrate=N/A speed=1.89x    
frame=   73 fps=1.9 q=-0.0 size=N/A time=00:01:11.02 bitrate=N/A speed=1.89x    
frame=   74 fps=1.9 q=-0.0 size=N/A time=00:01:12.02 bitrate=N/A speed=1.89x    
frame=   75 fps=1.9 q=-0.0 size=N/A time=00:01:13.02 bitrate=N/A speed=1.89x    
frame=   77 fps=2.0 q=-0.0 size=N/A time=00:01:15.02 bitrate=N/A speed=1.92x    
frame=   78 fps=2.0 q=-0.0 size=N/A time=00:01:16.02 bitrate=N/A speed=1.92x    
frame=   79 fps=2.0 q=-0.0 size=N/A time=00:01:17.02 bitrate=N/A speed=1.92x    
frame=   80 fps=2.0 q=-0.0 size=N/A time=00:01:18.02 bitrate=N/A speed=1.92x    
frame=   81 fps=2.0 q=-0.0 size=N/A time=00:01:19.02 bitrate=N/A speed=1.92x    
frame=   82 fps=2.0 q=-0.0 size=N/A time=00:01:20.02 bitrate=N/A speed=1.92x    
frame=   83 fps=2.0 q=-0.0 size=N/A time=00:01:21.02 bitrate=N/A speed=1.92x    
frame=   84 fps=2.0 q=-0.0 size=N/A time=00:01:22.02 bitrate=N/A speed=1.92x    
frame=   85 fps=2.0 q=-0.0 size=N/A time=00:01:23.02 bitrate=N/A speed=1.92x    
frame=   86 fps=2.0 q=-0.0 size=N/A time=00:01:24.02 bitrate=N/A speed=1.92x    
frame=   89 fps=2.0 q=-0.0 size=N/A time=00:01:27.02 bitrate=N/A speed=1.97x    
frame=   90 fps=2.0 q=-0.0 size=N/A time=00:01:28.02 bitrate=N/A speed=1.96x    
frame=   90 fps=2.0 q=-0.0 size=N/A time=00:01:28.02 bitrate=N/A speed=1.94x    
frame=   91 fps=2.0 q=-0.0 size=N/A time=00:01:29.02 bitrate=N/A speed=1.94x    
frame=   92 fps=2.0 q=-0.0 size=N/A time=00:01:30.02 bitrate=N/A speed=1.94x    
frame=   92 fps=2.0 q=-0.0 size=N/A time=00:01:30.02 bitrate=N/A speed=1.92x    
frame=   93 fps=2.0 q=-0.0 size=N/A time=00:01:31.02 bitrate=N/A speed=1.92x    
frame=   94 fps=2.0 q=-0.0 size=N/A time=00:01:32.02 bitrate=N/A speed=1.92x    
frame=   94 fps=1.9 q=-0.0 size=N/A time=00:01:32.02 bitrate=N/A speed= 1.9x    
frame=   95 fps=1.9 q=-0.0 size=N/A time=00:01:33.02 bitrate=N/A speed= 1.9x    
frame=   95 fps=1.9 q=-0.0 size=N/A time=00:01:33.02 bitrate=N/A speed=1.88x    
frame=   96 fps=1.9 q=-0.0 size=N/A time=00:01:34.02 bitrate=N/A speed=1.88x    
frame=   96 fps=1.9 q=-0.0 size=N/A time=00:01:34.02 bitrate=N/A speed=1.86x    
frame=   97 fps=1.9 q=-0.0 size=N/A time=00:01:35.02 bitrate=N/A speed=1.86x    
frame=   98 fps=1.9 q=-0.0 size=N/A time=00:01:36.02 bitrate=N/A speed=1.86x    
frame=   98 fps=1.9 q=-0.0 size=N/A time=00:01:36.02 bitrate=N/A speed=1.84x    
frame=   99 fps=1.9 q=-0.0 size=N/A time=00:01:37.02 bitrate=N/A speed=1.84x    
frame=   99 fps=1.9 q=-0.0 size=N/A time=00:01:37.02 bitrate=N/A speed=1.83x    
frame=  100 fps=1.9 q=-0.0 size=N/A time=00:01:38.02 bitrate=N/A speed=1.83x    
frame=  100 fps=1.8 q=-0.0 size=N/A time=00:01:38.02 bitrate=N/A speed=1.81x    
frame=  101 fps=1.8 q=-0.0 size=N/A time=00:01:39.02 bitrate=N/A speed=1.81x    
frame=  102 fps=1.8 q=-0.0 size=N/A time=00:01:40.02 bitrate=N/A speed=1.81x    
frame=  102 fps=1.8 q=-0.0 size=N/A time=00:01:40.02 bitrate=N/A speed=1.79x    
frame=  103 fps=1.8 q=-0.0 size=N/A time=00:01:41.02 bitrate=N/A speed= 1.8x    
frame=  103 fps=1.8 q=-0.0 size=N/A time=00:01:41.02 bitrate=N/A speed=1.78x    
frame=  104 fps=1.8 q=-0.0 size=N/A time=00:01:42.02 bitrate=N/A speed=1.78x    
frame=  105 fps=1.8 q=-0.0 size=N/A time=00:01:43.02 bitrate=N/A speed=1.78x    
frame=  105 fps=1.8 q=-0.0 size=N/A time=00:01:43.02 bitrate=N/A speed=1.76x    
frame=  106 fps=1.8 q=-0.0 size=N/A time=00:01:44.02 bitrate=N/A speed=1.76x    
frame=  106 fps=1.8 q=-0.0 size=N/A time=00:01:44.02 bitrate=N/A speed=1.75x    
frame=  107 fps=1.8 q=-0.0 size=N/A time=00:01:45.02 bitrate=N/A speed=1.75x    
frame=  108 fps=1.8 q=-0.0 size=N/A time=00:01:46.02 bitrate=N/A speed=1.75x    
frame=  108 fps=1.8 q=-0.0 size=N/A time=00:01:46.02 bitrate=N/A speed=1.74x    
frame=  109 fps=1.8 q=-0.0 size=N/A time=00:01:47.02 bitrate=N/A speed=1.74x    
frame=  109 fps=1.8 q=-0.0 size=N/A time=00:01:47.02 bitrate=N/A speed=1.72x    
frame=  110 fps=1.8 q=-0.0 size=N/A time=00:01:48.02 bitrate=N/A speed=1.73x    
frame=  111 fps=1.8 q=-0.0 size=N/A time=00:01:49.02 bitrate=N/A speed=1.73x    
frame=  111 fps=1.7 q=-0.0 size=N/A time=00:01:49.02 bitrate=N/A speed=1.71x    
frame=  112 fps=1.7 q=-0.0 size=N/A time=00:01:50.02 bitrate=N/A speed=1.71x    
frame=  112 fps=1.7 q=-0.0 size=N/A time=00:01:50.02 bitrate=N/A speed= 1.7x    
frame=  113 fps=1.7 q=-0.0 size=N/A time=00:01:51.02 bitrate=N/A speed= 1.7x    
frame=  113 fps=1.7 q=-0.0 size=N/A time=00:01:51.02 bitrate=N/A speed=1.69x    
frame=  114 fps=1.7 q=-0.0 size=N/A time=00:01:52.02 bitrate=N/A speed=1.69x    
frame=  115 fps=1.7 q=-0.0 size=N/A time=00:01:53.02 bitrate=N/A speed=1.69x    
frame=  115 fps=1.7 q=-0.0 size=N/A time=00:01:53.02 bitrate=N/A speed=1.68x    
frame=  116 fps=1.7 q=-0.0 size=N/A time=00:01:54.02 bitrate=N/A speed=1.68x    
frame=  116 fps=1.7 q=-0.0 size=N/A time=00:01:54.02 bitrate=N/A speed=1.67x    
frame=  117 fps=1.7 q=-0.0 size=N/A time=00:01:55.02 bitrate=N/A speed=1.67x    
frame=  117 fps=1.7 q=-0.0 size=N/A time=00:01:55.02 bitrate=N/A speed=1.66x    
frame=  118 fps=1.7 q=-0.0 size=N/A time=00:01:56.02 bitrate=N/A speed=1.66x    
frame=  118 fps=1.7 q=-0.0 size=N/A time=00:01:56.02 bitrate=N/A speed=1.65x    
frame=  119 fps=1.7 q=-0.0 size=N/A time=00:01:57.02 bitrate=N/A speed=1.65x    
frame=  120 fps=1.7 q=-0.0 size=N/A time=00:01:58.02 bitrate=N/A speed=1.65x    
frame=  120 fps=1.7 q=-0.0 size=N/A time=00:01:58.02 bitrate=N/A speed=1.63x    
frame=  120 fps=1.7 q=-0.0 Lsize=N/A time=00:01:59.02 bitrate=N/A speed=1.64x    
video:43029kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

ANSWER

Answered 2021-Dec-22 at 04:45

Your input is detected as interlaced but with half-height (288) and double the framerate (50). This may be due to missing or unrecognized boundary markers in the JPEG2000 packets. I assume this is meant to be PAL --> 720x576@25i.

Try using the tinterlace filter first to interleave the input "frames" to double-height and half fps, and then continue the original sequence of filters.

"tinterlace=mode=merge,bwdif=0,select='if(eq(n\,0),1,floor(t)-floor(prev_selected_t))'"

Source https://stackoverflow.com/questions/70380430

QUESTION

Apache mpm event shared memory error - ffmpeg-python Error while opening encoder for output stream #0:1 when accessed by multiple instances

Asked 2021-Dec-09 at 12:42

EDIT:

I kinda figured out, the problem needs to deal with apache mpm event... When I send my request on the first client, my script is getting executed linear. When I send my request from the second client, he is literally starting at that point in the code where the last request currently is. So that might be a problem with shared memory between those threads, but I'm not an apache professional, maybe somebody has an idea?
I used apache mpm prefork before, so every request is getting his own process and own memory etc., but there was a problem reading jpg files with that one and it worked after I changed apache to mpm event, see the following: https://github.com/python-pillow/Pillow/issues/5834#issue-comment-box

Inside my VM (running same apache version with mpm event) everything is working fine.

I've got a python script with flask running via wsgi on an apache2 webserver. Inside of that script I got following lines (458-461):

video_stream = ffmpeg.input(pathToVideo)
audio_file = ffmpeg.input(pathToAudio)
ffmpeg.concat(video_stream, audio_file, v=1, a=1).output(
     pathToOutVid).run()

So that code snippet successfully combines my video and audio file to a new video file on click on a button. My Problem starts when I am accessing the webpage from 2 clients and start that script. Both have different input audio and video files and different output files, but when they are running at the same time, one of them is passing through successfully and the other client gets the following error:

ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/movie.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
  Duration: 00:00:11.50, start: 0.000000, bitrate: 1053 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 1050 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #1, mp3, from '/path/to/audio.mp3':
  Metadata:
    encoder         : Lavf57.83.100
  Duration: 00:00:11.55, start: 0.025057, bitrate: 128 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    Metadata:
      encoder         : Lavc57.10
Stream mapping:
  Stream #0:0 (h264) -> concat:in0:v0
  Stream #1:0 (mp3) -> concat:in0:a0
  concat:out:a0 -> Stream #0:0 (aac)
  concat:out:v0 -> Stream #0:1 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x56011ee5cbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
Error initializing output stream 0:1 -- Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height
[aac @ 0x56011ee5b260] Qavg: -nan
Conversion failed!

but executing that part on the same client without another one parallel is also working correctly with the following output:

ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/movie.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
  Duration: 00:00:11.50, start: 0.000000, bitrate: 1053 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 1050 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #1, mp3, from '/path/to/audio.mp3':
  Metadata:
    encoder         : Lavf57.83.100
  Duration: 00:00:11.55, start: 0.025057, bitrate: 128 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    Metadata:
      encoder         : Lavc57.10
Stream mapping:
  Stream #0:0 (h264) -> concat:in0:v0
  Stream #1:0 (mp3) -> concat:in0:a0
  concat:out:a0 -> Stream #0:0 (aac)
  concat:out:v0 -> Stream #0:1 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x55ae2ada7bc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x55ae2ada7bc0] profile High, level 4.0
[libx264 @ 0x55ae2ada7bc0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/path/to/movie-WITH-AUDIO.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
    Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      encoder         : Lavc57.107.100 aac
    Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=   42 fps=0.0 q=0.0 size=       0kB time=00:00:01.34 bitrate=   0.0kbits/s speed=2.68x    
frame=   46 fps= 39 q=0.0 size=       0kB time=00:00:01.48 bitrate=   0.0kbits/s speed=1.25x    
frame=   57 fps= 34 q=29.0 size=       0kB time=00:00:01.85 bitrate=   0.2kbits/s speed= 1.1x    
frame=   70 fps= 30 q=29.0 size=       0kB time=00:00:02.25 bitrate=   0.2kbits/s speed=0.966x    
frame=   82 fps= 28 q=29.0 size=     256kB time=00:00:02.69 bitrate= 778.7kbits/s speed=0.927x    
frame=   92 fps= 26 q=29.0 size=     256kB time=00:00:03.01 bitrate= 694.9kbits/s speed=0.868x    
frame=  102 fps= 25 q=29.0 size=     256kB time=00:00:03.34 bitrate= 627.3kbits/s speed=0.831x    
frame=  114 fps= 25 q=29.0 size=     512kB time=00:00:03.71 bitrate=1129.1kbits/s speed=0.81x    
frame=  134 fps= 26 q=29.0 size=     512kB time=00:00:04.41 bitrate= 950.8kbits/s speed=0.864x    
frame=  152 fps= 27 q=29.0 size=     512kB time=00:00:05.01 bitrate= 836.3kbits/s speed=0.886x    
frame=  169 fps= 27 q=29.0 size=     512kB time=00:00:05.59 bitrate= 749.6kbits/s speed=0.902x    
frame=  189 fps= 28 q=29.0 size=     512kB time=00:00:06.22 bitrate= 674.1kbits/s speed=0.927x    
frame=  203 fps= 28 q=29.0 size=     768kB time=00:00:06.71 bitrate= 937.6kbits/s speed=0.912x    
frame=  215 fps= 27 q=29.0 size=    1024kB time=00:00:07.10 bitrate=1180.7kbits/s speed=0.885x    
frame=  240 fps= 28 q=29.0 size=    1024kB time=00:00:07.94 bitrate=1056.4kbits/s speed=0.921x    
frame=  258 fps= 28 q=29.0 size=    1024kB time=00:00:08.52 bitrate= 984.4kbits/s speed=0.934x    
frame=  281 fps= 29 q=29.0 size=    1024kB time=00:00:09.28 bitrate= 903.2kbits/s speed=0.965x    
frame=  302 fps= 30 q=29.0 size=    1024kB time=00:00:09.98 bitrate= 840.2kbits/s speed=0.984x    
frame=  318 fps= 30 q=29.0 size=    1280kB time=00:00:10.54 bitrate= 994.7kbits/s speed=0.989x    
frame=  335 fps= 30 q=29.0 size=    1280kB time=00:00:11.12 bitrate= 942.8kbits/s speed=0.989x    
frame=  345 fps= 27 q=-1.0 Lsize=    1765kB time=00:00:11.51 bitrate=1255.3kbits/s speed=0.887x    
video:1569kB audio:183kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.768725%
[aac @ 0x55ae2ada6260] Qavg: 1450.385
[libx264 @ 0x55ae2ada7bc0] frame I:2     Avg QP:11.26  size: 96372
[libx264 @ 0x55ae2ada7bc0] frame P:99    Avg QP:18.02  size: 11184
[libx264 @ 0x55ae2ada7bc0] frame B:244   Avg QP:17.15  size:  1253
[libx264 @ 0x55ae2ada7bc0] consecutive B-frames:  2.6%  8.1%  3.5% 85.8%
[libx264 @ 0x55ae2ada7bc0] mb I  I16..4: 54.0% 36.8%  9.2%
[libx264 @ 0x55ae2ada7bc0] mb P  I16..4:  1.7%  8.2%  0.2%  P16..4: 16.8%  2.9%  2.6%  0.0%  0.0%    skip:67.7%
[libx264 @ 0x55ae2ada7bc0] mb B  I16..4:  0.3%  0.3%  0.0%  B16..8:  8.1%  0.2%  0.1%  direct: 1.8%  skip:89.2%  L0:35.2% L1:62.5% BI: 2.3%
[libx264 @ 0x55ae2ada7bc0] 8x8 transform intra:71.5% inter:83.8%
[libx264 @ 0x55ae2ada7bc0] coded y,uvDC,uvAC intra: 18.8% 23.1% 7.1% inter: 2.4% 6.6% 0.1%
[libx264 @ 0x55ae2ada7bc0] i16 v,h,dc,p: 62% 22%  7%  8%
[libx264 @ 0x55ae2ada7bc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 16% 41%  1%  1%  1%  2%  1%  2%
[libx264 @ 0x55ae2ada7bc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 25% 12%  6%  8%  6% 11%  6%  8%
[libx264 @ 0x55ae2ada7bc0] i8c dc,h,v,p: 72% 14% 12%  1%
[libx264 @ 0x55ae2ada7bc0] Weighted P-Frames: Y:53.5% UV:48.5%
[libx264 @ 0x55ae2ada7bc0] ref P L0: 75.9% 11.4% 10.0%  2.4%  0.3%
[libx264 @ 0x55ae2ada7bc0] ref B L0: 89.7%  9.5%  0.8%
[libx264 @ 0x55ae2ada7bc0] ref B L1: 97.9%  2.1%
[libx264 @ 0x55ae2ada7bc0] kb/s:1117.06

I tried to reproduce this error inside my virtual machine running the same Ubuntu 18.04 version, same apache version with mpm event, same python version, same ffmpeg-python version and ffmpeg version, but on my localhost VM everything is working without any problems. Now I need help because I have no idea why this encoder cannot be opened (when another is currently using it? - but no problem on my VM?)

In case it helps, I'm also using opencv and got the following part using the h264 encoder:

video = cv.VideoWriter(output, cv.VideoWriter_fourcc('a', 'v', 'c', '1'), 30, 1920, 1080))

The part of the program where this video is written usually takes very long, if that knowledge helps, but there are no problems with the encoder when multiple clients use it at this point.

I really hope somebody can help me and I appreciate the time you are investing for me, thanks for that!
If I forgot to send something or I need to give more detailed information or anything, just text me :)

Versions

Ubuntu 18.04 LTS
Apache/2.4.29
ffmpeg version 3.4.8-0ubuntu0.2
Python 3.6.9
Flask 2.0.2
opencv 3.4.1
ffmpeg-python 0.2.0

ANSWER

Answered 2021-Dec-04 at 15:39

Okay, for the love of God Im done... needed 4 days for that **** to find out, I had an apache mod activated (fcgid) which literally assign every single line of ur code to a single thread... so I deactivated that one and now its working without any issues...

So in short - what I did:

a2dismod fcgid
systemctl restart apache2

now its working.

Thx to @Rotem for his assistance! Sorry for that weired problem and my own stupidity...

Source https://stackoverflow.com/questions/70221356

QUESTION

ffmpeg stops encoding after two frames

Asked 2021-Dec-09 at 04:08

I have a HEVC encoded 4k Video captured from a Reolink IP-Cam with VLC Player 3.0.14. I want to extract each frame of the video but the encoding stops after only two frames. This also happens when I try to convert into another video format. This happens on Windows and Ubuntu with different ffmpeg versions.

My command is:

ffmpeg.exe -i vlc-record-2021-06-07-08h01m03s-rtsp___192.168.178.92_554_h265Preview_01_main-.mp4 output/%05d.jpg

The output is:

ffmpeg version 4.4.1-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a7960bc740] st: 1 edit list: 1 Missing key frame while searching for timestamp: 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a7960bc740] st: 1 edit list 1 Cannot find an index entry before timestamp: 0.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vlc-record-2021-06-07-08h01m03s-rtsp___192.168.178.92_554_h265Preview_01_main-.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: mp41avc1
    creation_time   : 2021-06-07T06:02:31.000000Z
    playback_requirements: QuickTime 6.0 or greater
    playback_requirements-eng: QuickTime 6.0 or greater
    encoder         : vlc 3.0.14 stream output
    encoder-eng     : vlc 3.0.14 stream output
  Duration: 00:01:27.87, start: 0.000000, bitrate: 3175 kb/s
  Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 63 kb/s (default)
    Metadata:
      creation_time   : 2021-06-07T06:02:31.000000Z
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1(eng): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 3840x2160, 3154 kb/s, 12.51 fps, 12.50 tbr, 1000k tbn, 1000k tbc (default)
    Metadata:
      creation_time   : 2021-06-07T06:02:31.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:1 -> #0:0 (hevc (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 000002a7a57f7d80] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'output/%05d.jpg':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: mp41avc1
    encoder         : Lavf58.76.100
    playback_requirements: QuickTime 6.0 or greater
    playback_requirements-eng: QuickTime 6.0 or greater
  Stream #0:0(eng): Video: mjpeg, yuvj420p(pc, progressive), 3840x2160, q=2-31, 200 kb/s, 12.50 fps, 12.50 tbn (default)

    Metadata:
      creation_time   : 2021-06-07T06:02:31.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc58.134.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
frame=    2 fps=0.0 q=6.4 Lsize=N/A time=00:00:00.16 bitrate=N/A speed=0.197x
video:495kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Thanks for any help, Maik

ANSWER

Answered 2021-Dec-09 at 04:08

MP4s may have an edit list which tell the player to construct a virtual playback timeline. Occasionally, this timeline can leave out frames needed to decode stream correctly, or the sync samples table may be wrong.

Add -ignore_editlist to demux the stream without any edits.

ffmpeg.exe -ignore_editlist 1 -i vlc-record-2021-06-07-08h01m03s-rtsp___192.168.178.92_554_h265Preview_01_main-.mp4 output/%05d.jpg

Source https://stackoverflow.com/questions/70272945

QUESTION

cvlc cannot play rtsp (omxplayer instead can)

Asked 2021-Nov-23 at 10:48

Got this Dahua vto stream link: that works with omxplayer, but vlc won't play it:

rtsp://user:pass@ipadd:554/cam/realmonitor/channel=1&subtype=1

This is the output of vlc:

VLC media player 3.0.16 Vetinari (revision 3.0.13-8-g41878ff4f2)
[000055b9be2245b0] main libvlc debug: VLC media player - 3.0.16 Vetinari
[000055b9be2245b0] main libvlc debug: Copyright © 1996-2021 the VideoLAN team
[000055b9be2245b0] main libvlc debug: revision 3.0.13-8-g41878ff4f2
[000055b9be2245b0] main libvlc debug: configured with ./configure  '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-option-checking' '--disable-silent-rules' '--libdir=${prefix}/lib/x86_64-linux-gnu' '--runstatedir=/run' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-debug' '--config-cache' '--disable-update-check' '--enable-fast-install' '--docdir=/usr/share/doc/vlc' '--with-binary-version=3.0.16-1' '--enable-a52' '--enable-aa' '--enable-aribsub' '--enable-avahi' '--enable-bluray' '--enable-caca' '--enable-chromaprint' '--enable-chromecast' '--enable-dav1d' '--enable-dbus' '--enable-dca' '--enable-dvbpsi' '--enable-dvdnav' '--enable-faad' '--enable-flac' '--enable-fluidsynth' '--enable-freetype' '--enable-fribidi' '--enable-gles2' '--enable-gnutls' '--enable-harfbuzz' '--enable-jack' '--enable-kate' '--enable-libass' '--enable-libmpeg2' '--enable-libxml2' '--enable-lirc' '--enable-mad' '--enable-matroska' '--enable-mod' '--enable-mpc' '--enable-mpg123' '--enable-mtp' '--enable-ncurses' '--enable-notify' '--enable-ogg' '--enable-opus' '--enable-pulse' '--enable-qt' '--enable-realrtsp' '--enable-samplerate' '--enable-sdl-image' '--enable-sftp' '--enable-shine' '--enable-shout' '--enable-skins2' '--enable-sndio' '--enable-soxr' '--enable-spatialaudio' '--enable-speex' '--enable-svg' '--enable-svgdec' '--enable-taglib' '--enable-theora' '--enable-twolame' '--enable-upnp' '--enable-vdpau' '--enable-vnc' '--enable-vorbis' '--enable-x264' '--enable-x265' '--enable-zvbi' '--with-kde-solid=/usr/share/solid/actions/' '--disable-aom' '--disable-crystalhd' '--disable-d3d11va' '--disable-decklink' '--disable-directx' '--disable-dsm' '--disable-dxva2' '--disable-fdkaac' '--disable-fluidlite' '--disable-freerdp' '--disable-goom' '--disable-gst-decode' '--disable-libtar' '--disable-live555' '--disable-macosx' '--disable-macosx-avfoundation' '--disable-macosx-qtkit' '--disable-mfx' '--disable-microdns' '--disable-opencv' '--disable-projectm' '--disable-schroedinger' '--disable-sparkle' '--disable-srt' '--disable-telx' '--disable-vpx' '--disable-vsxu' '--disable-wasapi' '--enable-alsa' '--enable-dc1394' '--enable-dv1394' '--enable-libplacebo' '--enable-linsys' '--enable-nfs' '--enable-udev' '--enable-v4l2' '--enable-wayland' '--enable-libva' '--enable-vcd' '--enable-smbclient' '--disable-oss' '--enable-mmx' '--enable-sse' '--disable-neon' '--disable-altivec' '--disable-omxil' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -ffile-prefix-map=/build/vlc-0rjD9V/vlc-3.0.16=. -fstack-protector-strong -Wformat -Werror=format-security ' 'LDFLAGS=-Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -ffile-prefix-map=/build/vlc-0rjD9V/vlc-3.0.16=. -fstack-protector-strong -Wformat -Werror=format-security ' 'OBJCFLAGS=-g -O2 -ffile-prefix-map=/build/vlc-0rjD9V/vlc-3.0.16=. -fstack-protector-strong -Wformat -Werror=format-security'
[000055b9be2e1700] main audio output debug: looking for audio output module matching "any": 6 candidates
[000055b9be2e1700] vlcpulse audio output debug: using library version 14.2.0
[000055b9be2e1700] vlcpulse audio output debug:  (compiled with version 14.2.0, protocol 34)
[000055b9be2e1700] vlcpulse audio output debug: connected locally to /run/user/1000/pulse/native as client #10650
[000055b9be2e1700] vlcpulse audio output debug: using protocol 34, server protocol 34
[000055b9be2e1700] pulse audio output debug: adding sink 1: alsa_output.pci-0000_00_1f.3.analog-stereo (Built-in Audio Analog Stereo)
[000055b9be2e1700] pulse audio output debug: adding sink 2: ec_ref (Built-in Audio Analog Stereo (echo cancelled with Built-in Audio Analog Stereo))
[000055b9be2e1700] pulse audio output debug: adding sink 16: alsa_output.pci-0000_01_00.1.hdmi-stereo-extra3 (GM107 High Definition Audio Controller [GeForce 940MX] Digital Stereo (HDMI 4))
[000055b9be2e1700] main audio output debug: using audio output module "pulse"
[000055b9be2caff0] main playlist debug: keeping audio output
[000055b9be310c40] main interface debug: looking for interface module matching "dbus,none": 19 candidates
[000055b9be310c40] dbus interface debug: listening on dbus as: org.mpris.MediaPlayer2.vlc
[000055b9be310c40] main interface debug: using interface module "dbus"
[000055b9be3154c0] main interface debug: looking for interface module matching "hotkeys,none": 19 candidates
[000055b9be3154c0] main interface debug: using interface module "hotkeys"
[000055b9be315e90] main interface debug: looking for interface module matching "globalhotkeys,none": 19 candidates
[000055b9be310c40] dbus interface debug: Getting All properties
[000055b9be310c40] dbus interface debug: Getting All properties
[000055b9be315e90] main interface debug: using interface module "xcb_hotkeys"
[000055b9be3177f0] main interface debug: looking for interface module matching "dummy": 19 candidates
[000055b9be3177f0] dummy interface: using the dummy interface module...
[000055b9be3177f0] main interface debug: using interface module "dummy"
[000055b9be2caff0] main playlist debug: processing request item: null, node: Scaletta, skip: 0
[000055b9be2caff0] main playlist debug: rebuilding array of current - root Scaletta
[000055b9be2caff0] main playlist debug: rebuild done - 1 items, index -1
[000055b9be2caff0] main playlist debug: starting playback of new item
[000055b9be2caff0] main playlist debug: resyncing on rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1
[000055b9be2caff0] main playlist debug: rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1 is at 0
[000055b9be2caff0] main playlist debug: creating new input thread
[00007ff0bc000c80] main input debug: Creating an input for 'rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1'
[000055b9be2caff0] main playlist debug: requesting art for new input thread
[00007ff0bc000c80] main input debug: using timeshift granularity of 50 MiB
[00007ff0bc000c80] main input debug: using default timeshift path
[00007ff0bc000c80] main input debug: `rtsp://user:pass@address:554/cam/realmonitor/channel=1&subtype=1' gives access `rtsp' demux `any' path `user:pass@address:554/cam/realmonitor/channel=1&subtype=1'
[00007ff0b0000fa0] main input source debug: creating demux: access='rtsp' demux='any' location='user:pass@address:554/cam/realmonitor/channel=1&subtype=1' file='(null)'
[00007ff0b0001160] main demux debug: looking for access_demux module matching "rtsp": 16 candidates
[00007ff0a8000c20] main meta fetcher debug: looking for meta fetcher module matching "any": 1 candidates
[000055b9be2caff0] main playlist debug: processing request item: null, node: Scaletta, skip: 0
[000055b9be2caff0] main playlist debug: rebuilding array of current - root Scaletta
[000055b9be2caff0] main playlist debug: rebuild done - 1 items, index -1
[000055b9be2caff0] main playlist debug: starting playback of new item
[000055b9be2caff0] main playlist debug: resyncing on rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1
[000055b9be2caff0] main playlist debug: rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1 is at 0
[000055b9be2caff0] main playlist debug: creating new input thread
[00007ff0bc000c80] main input debug: Creating an input for 'rtsp://10.168.5.138:554/cam/realmonitor/channel=1&subtype=1'
[000055b9be2caff0] main playlist debug: requesting art for new input thread
[00007ff0bc000c80] main input debug: using timeshift granularity of 50 MiB
[00007ff0bc000c80] main input debug: using default timeshift path
[00007ff0bc000c80] main input debug: `rtsp://user:pass@address:554/cam/realmonitor/channel=1&subtype=1' gives access `rtsp' demux `any' path `user:pass@address:554/cam/realmonitor/channel=1&subtype=1'
[00007ff0b0000fa0] main input source debug: creating demux: access='rtsp' demux='any' location='user:pass@address:554/cam/realmonitor/channel=1&subtype=1' file='(null)'
[00007ff0b0001160] main demux debug: looking for access_demux module matching "rtsp": 16 candidates
[00007ff0a8000c20] main meta fetcher debug: looking for meta fetcher module matching "any": 1 candidates
[00007ff0a8000c20] lua meta fetcher debug: Trying Lua scripts in /home/tec1/.local/share/vlc/lua/meta/fetcher
[00007ff0a8000c20] lua meta fetcher debug: Trying Lua scripts in /usr/lib/x86_64-linux-gnu/vlc/lua/meta/fetcher
[00007ff0a8000c20] lua meta fetcher debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
[00007ff0b0001160] main demux debug: no access_demux modules matched
[00007ff0a8000c20] main meta fetcher debug: no meta fetcher modules matched
[00007ff0b0001630] main stream debug: creating access: rtsp://user:pass@address:554/cam/realmonitor/channel=1&subtype=1
[00007ff0a8000c20] main art finder debug: looking for art finder module matching "any": 2 candidates
[00007ff0b0001630] main stream debug: looking for access module matching "rtsp": 29 candidates
[00007ff0a8000c20] lua art finder debug: Trying Lua scripts in /home/tec1/.local/share/vlc/lua/meta/art
[00007ff0a8000c20] lua art finder debug: Trying Lua scripts in /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art
[00007ff0a8000c20] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/00_musicbrainz.luac
[00007ff0b0001630] satip stream debug: try to open 'rtsp://user:pass@address:554/cam/realmonitor/channel=1&subtype=1'
[00007ff0b0001630] satip stream debug: connect to host '10.168.5.138'
[00007ff0b0001630] main stream debug: net: connecting to 10.168.5.138 port 554
[00007ff0a8000c20] lua art finder debug: skipping script (unmatched scope) /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/00_musicbrainz.luac
[00007ff0a8000c20] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/01_googleimage.luac
[00007ff0a8000c20] lua art finder debug: skipping script (unmatched scope) /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/01_googleimage.luac
[00007ff0a8000c20] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/02_frenchtv.luac
[00007ff0a8000c20] lua art finder debug: skipping script (unmatched scope) /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/02_frenchtv.luac
[00007ff0a8000c20] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/03_lastfm.luac
[00007ff0a8000c20] lua art finder debug: skipping script (unmatched scope) /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/03_lastfm.luac
[00007ff0a8000c20] lua art finder debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
[00007ff0a8000c20] main art finder debug: no art finder modules matched
[00007ff0b0001630] main stream debug: connection succeeded (socket = 11)
[00007ff0ac000e80] main meta fetcher debug: looking for meta fetcher module matching "any": 1 candidates
[00007ff0b0001630] main stream debug: net: opening 0.0.0.0 datagram port 9164
[00007ff0ac000e80] lua meta fetcher debug: Trying Lua scripts in /home/tec1/.local/share/vlc/lua/meta/fetcher
[00007ff0b0001630] main stream debug: net: opening 0.0.0.0 datagram port 9165
[00007ff0ac000e80] lua meta fetcher debug: Trying Lua scripts in /usr/lib/x86_64-linux-gnu/vlc/lua/meta/fetcher
[00007ff0ac000e80] lua meta fetcher debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
[00007ff0ac000e80] main meta fetcher debug: no meta fetcher modules matched
[00007ff0ac000e80] main art finder debug: looking for art finder module matching "any": 2 candidates
[00007ff0ac000e80] lua art finder debug: Trying Lua scripts in /home/tec1/.local/share/vlc/lua/meta/art
[00007ff0ac000e80] lua art finder debug: Trying Lua scripts in /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art
[00007ff0ac000e80] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/00_musicbrainz.luac
[00007ff0ac000e80] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/01_googleimage.luac
[00007ff0ac000e80] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/02_frenchtv.luac
[00007ff0ac000e80] lua art finder debug: Trying Lua playlist script /usr/lib/x86_64-linux-gnu/vlc/lua/meta/art/03_lastfm.luac
[00007ff0ac000e80] lua art finder debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
[00007ff0ac000e80] main art finder debug: no art finder modules matched
[00007ff0b0001630] satip stream error: Failed to setup RTSP session
[00007ff0b0001630] main stream debug: net: connecting to 10.168.5.138 port 554
[00007ff0b0001630] main stream debug: connection succeeded (socket = 11)
[00007ff0b0001630] access_realrtsp stream warning: Cseq mismatch, got 1, assumed 0
[00007ff0b0001630] access_realrtsp stream debug: rtsp connected
[00007ff0b0001630] access_realrtsp stream warning: only real/helix rtsp servers supported for now
[00007ff0b0001630] main stream debug: no access modules matched
[00007ff0bc000c80] main input error: L'ingresso non può essere aperto
[00007ff0bc000c80] main input error: VLC non è in grado di aprire il MRL 'rtsp://user:pass@address:554/cam/realmonitor/channel=1&subtype=1'. Controlla il registro per i dettagli.
[000055b9be2caff0] main playlist debug: dead input
[000055b9be2caff0] main playlist debug: changing item without a request (current 0/1)
[000055b9be2caff0] main playlist debug: nothing to play

Main problem is omxplayer is deprecated but it play it fine, after 10 seconds of loading. Can someone let me understand why vlc doesn't at all?

ANSWER

Answered 2021-Nov-10 at 05:29

So what happened is that the library in Debian providing support for live555 was removed in February of this year, this affects all downstream distros including but not limited to RPi OS and Ubuntu:

https://askubuntu.com/a/1363113

The 2 active versions were 2020.01.19-1 and 2018.11.26-1.1, Live555 has since added GPL license headers to the offending files, however the RFC issue remains.

Now you may be tempted to just download the latest Live555 source code and compile it... it does not work. There have been changes to function names and structures referenced by VLC, and as such VLC will not compile against the source. You need to get an older version, I specifically used this one, which is a tweaked snapshot from 2020 prior to the modifications that prevent VLC compilation:

https://github.com/rgaufman/live555

The configuration you want is ./genMakefiles linux-with-shared-libraries, I do not know if it is required but since my system is x86-64-bit I added -m64 to the compiler options first

After compilation and install, I went on to compile VLC, adding '--enable-live555' and '--with-live555-tree=extras/live555-master' after placing the root Live555 folder in the VLC extras folder, however VLC failed to compile, it turns out the Live555's make install does not copy all the header files needed to where VLC is looking. They were dropped as 4 subfolders into /usr/local/include/, and the actual libs into /usr/local/lib/. Adding the correct CXX/CPP flags will make it look where they were put, however I put them all in a single folder and used 1 flag.

I also had to '--disable-mod' to work around a dependency version issue that I had no interest in fixing, since I do not use modplug or any mod files.

50 minutes later... VLC successfully compiled! However it was expecting the libraries for Live555 to be in /usr/lib/ not /usr/local/lib/, since it took so long to compile I was just fine with linking or copying the libraries into the expected folder, and after that VLC works with RTSP when linked to the new file. Or you can choose to maintain the original VLC and run the new file directly if you need to load the camera feeds.

Source https://stackoverflow.com/questions/69766748

QUESTION

Video colour difference when publishing via ffmpeg

Asked 2021-Oct-28 at 06:58

I'm trying to publish a video using ffmpeg. For publishing, I'm using python frame images as the input source. But when it streams, the video colours are different.

p = Popen(['ffmpeg', '-y', '-f', 'image2pipe', '-r', '30', '-i', '-', '-vcodec', 'mpeg4', '-qscale', '5', '-r', '30', '-b:a', '32k', '-ar', '44100', '-pix_fmt','rgb24', '-color_range', '3', '-c:v', 'libx264rgb', '-f', 'flv', 'rtmp://stream_ip/live/bbb'], stdin=PIPE)

How can I adjust the ffmpeg command to serve the images with the original colours?

Console

ffmpeg version 4.1.8-0+deb10u1 Copyright (c) 2000-2021 the FFmpeg 
developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --prefix=/usr --extra-version=0+deb10u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil      56. 22.100 / 56. 22.100
libavcodec     58. 35.100 / 58. 35.100
libavformat    58. 20.100 / 58. 20.100
libavdevice    58.  5.100 / 58.  5.100
libavfilter     7. 40.101 /  7. 40.101
libavresample   4.  0.  0 /  4.  0.  0
libswscale      5.  3.100 /  5.  3.100
libswresample   3.  3.100 /  3.  3.100
libpostproc    55.  3.100 / 55.  3.100
Input #0, image2pipe, from 'pipe:':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1152x720 [SAR 1:1 DAR 8:5], 30 fps, 30 tbr, 30 tbn, 30 tbc
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 
(rtmp://ip/live/bbb) has not been used for any stream. The most likely 
reason is either wrong type (e.g. a video option with no video streams) 
or that it is a private option of some encoder which was not actually 
used for any stream.
Stream mapping:
 Stream #0:0 -> #0:0 (mjpeg (native) -> flv1 (flv))
[swscaler @ 0x5639066a7f80] deprecated pixel format used, make sure you 
did set range correctly
Output #0, flv, to 'rtmp://ip/live/bbb':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1152x720 [SAR 1:1 DAR 8:5], q=2-31, 200 kb/s, 30 fps, 1k tbn, 30 tbc
    Metadata:
       encoder         : Lavc58.35.100 flv
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame= 2917 fps= 29 q=31.0 size=    8834kB time=00:01:37.20 bitrate= 744.5kbits/s speed=0.952x

ANSWER

Answered 2021-Oct-28 at 06:58

If you are reading JPEGs, PNGs, or video into OpenCV, it will hold them in memory in BGR channel ordering. If you are feeding such frames into ffmpeg you must either:

convert the frames to RGB first inside OpenCV with cv2.cvtColor(... cv2.COLOR_BGR2RGB) before sending to ffmpeg, or
tell ffmpeg that the frames are in BGR order by putting -pix_fmt bgr24 before the input specifier, i.e. before -i -

Source https://stackoverflow.com/questions/69748471

QUESTION

ffmpeg: Could not find tag for codec none in stream #1, codec not currently supported in container

Asked 2021-Oct-11 at 16:24

I'm trying to record video from my ip camera stream with ffmpeg in command line

fmpeg -rtsp_transport tcp \
>  -i rtsp://192.168.0.250/stream1 \
>  -c copy \
>  -map 0 \
>  -f segment \
>  -segment_time 60 \
>  -segment_format mp4 \
>  "/home/video/stream-%010d.mp4"

and got the next output:

ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, rtsp, from 'rtsp://192.168.0.250/stream1':
  Metadata:
    title           : Session streamed by "nessyMediaServer"
    comment         : h264
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 2048x1536 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1: Data: none
[segment @ 0x559e20000980] Opening '/home/video/stream-0000000000.mp4' for writing
[mp4 @ 0x559e1fffc180] Could not find tag for codec none in stream #1, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
    Last message repeated 1 times

Tried some different options like -c:v libx265 or -c:v libx264 but it does not works the output is a little different. But the main error is the same:

Could not find tag for codec none in stream #1, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

UPD: Tried the next command:

 ffmpeg -rtsp_transport tcp \
 -i rtsp://192.168.0.250/stream1 \
 -c copy \
 -map 0 \
 -f segment \
 -segment_time 60 \
 -segment_format avi \
 "/home/video/stream-%010d.avi"

It started to record video but with errors:

fmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, rtsp, from 'rtsp://192.168.0.250/stream1':
  Metadata:
    title           : Session streamed by "nessyMediaServer"
    comment         : h265
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 2048x1536 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 25 tbc
    Stream #0:1: Data: none
[segment @ 0x562200721d80] Opening '/home/evgeniy/video/stream-0000000000.avi' for writing
Output #0, segment, to '/home/video/stream-%010d.avi':
  Metadata:
    title           : Session streamed by "nessyMediaServer"
    comment         : h265
    encoder         : Lavf58.29.100
    Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 2048x1536 [SAR 1:1 DAR 4:3], q=2-31, 25 fps, 25 tbr, 25 tbn, 25 tbc
    Stream #0:1: Data: none
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[segment @ 0x562200721d80] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[segment @ 0x562200721d80] Non-monotonous DTS in output stream 0:0; previous: 202, current: 202; changing to 203. This may result in incorrect timestamps in the output file.
...
[segment @ 0x562200721d80] Non-monotonous DTS in output stream 0:0; previous: 748, current: 748; changing to 749. This may result in incorrect timestamps in the output file.
[segment @ 0x562200721d80] Opening '/home/video/stream-0000000001.avi' for writing
[avi @ 0x56220077d800] Too large number of skipped frames 5417887 > 6000001x    
av_interleaved_write_frame(): Invalid argument
[avi @ 0x56220077d800] Too large number of skipped frames 5407879 > 60000
frame= 1505 fps= 25 q=-1.0 Lsize=N/A time=00:01:00.24 bitrate=N/A speed=1.01x    
video:5314kB audio:0kB subtitle:0kB other streams:359kB global headers:0kB muxing overhead: unknown
Conversion failed!

ANSWER

Answered 2021-Oct-11 at 16:24

Stream #0:1 is unknown data, but the MP4 muxer does not know what to do with that.