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Sur d’autres sites (10545)
-
FFMPEG x264 (fourcc=0x21) codec is not working with OpenCV
6 mars 2020, par dkacI'm trying to use mp4 format coding (fourcc=0x21) on OpenCV 3.2 without success. Probably I have a problem with my Ubuntu 18.04 setup but currently I'm running out of ideas how to fix it. First, I recompiled FFMPEG with x264 support. Than, recompiled OpenCV (with contrib and OPENCV_ENABLE_NONFREE=ON, WITH_FFMPEG=ON). It is still not working.



I cannot use fourcc different than 0x21. I mean.. I cannot use another codec.



Example :



>>> import cv2
>>> out = cv2.VideoWriter('output.mp4', 0x21, 20.0, (640,480))
OpenCV: FFMPEG: tag 0x00000021/'!???' is not found (format 'mp4 / (null)')'



However, this is working fine (other fourcc, codec) :



>>> out = cv2.VideoWriter('output.mp4',0x31637661 , 20.0, (640,480))



OpenCV compiled with FFMPEG support (version 3.2), cmake config :



Video I/O:
DC1394 1.x: NO
DC1394 2.x: YES (ver 2.2.5)
FFMPEG: YES
 avcodec: YES (ver 57.107.100)
 avformat: YES (ver 57.83.100)
 avutil: YES (ver 55.78.100)
 swscale: YES (ver 4.8.100)
 avresample: YES (ver 3.7.0)



FFMPEG build with x264 support :



ffmpeg -version
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil 56. 42.100 / 56. 42.100
libavcodec 58. 73.102 / 58. 73.102
libavformat 58. 39.101 / 58. 39.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 77.100 / 7. 77.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100



FFMPEG x264 simple conversion test is working :



ffmpeg -i in.mp4 -vcodec libx264 -f mp4 out.mp4y
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil 56. 42.100 / 56. 42.100
libavcodec 58. 73.102 / 58. 73.102
libavformat 58. 39.101 / 58. 39.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 77.100 / 7. 77.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf57.83.100
Duration: 00:00:10.00, start: 0.000000, bitrate: 3826 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x960, 3825 kb/s, 10 fps, 10 tbr, 10240 tbn, 20 tbc (default)
Metadata:
 handler_name : VideoHandler
File 'out.mp4y' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))


-
FFMPEG x264 (fourcc=0x21) codec is not working with OpenCV
6 mars 2020, par dkacI’m trying to use mp4 format coding (fourcc=0x21) on OpenCV 3.2 without success. Probably I have a problem with my Ubuntu 18.04 setup but currently I’m running out of ideas how to fix it. First, I recompiled FFMPEG with x264 support. Than, recompiled OpenCV (with contrib and OPENCV_ENABLE_NONFREE=ON, WITH_FFMPEG=ON). It is still not working.
I cannot use fourcc different than 0x21. I mean.. I cannot use another codec.
Example :
>>> import cv2
>>> out = cv2.VideoWriter('output.mp4', 0x21, 20.0, (640,480))
OpenCV: FFMPEG: tag 0x00000021/'!???' is not found (format 'mp4 / (null)')'However, this is working fine (other fourcc, codec) :
>>> out = cv2.VideoWriter('output.mp4',0x31637661 , 20.0, (640,480))OpenCV compiled with FFMPEG support (version 3.2), cmake config :
Video I/O:
DC1394 1.x: NO
DC1394 2.x: YES (ver 2.2.5)
FFMPEG: YES
avcodec: YES (ver 57.107.100)
avformat: YES (ver 57.83.100)
avutil: YES (ver 55.78.100)
swscale: YES (ver 4.8.100)
avresample: YES (ver 3.7.0)FFMPEG build with x264 support :
ffmpeg -version
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil 56. 42.100 / 56. 42.100
libavcodec 58. 73.102 / 58. 73.102
libavformat 58. 39.101 / 58. 39.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 77.100 / 7. 77.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100FFMPEG x264 simple conversion test is working :
ffmpeg -i in.mp4 -vcodec libx264 -f mp4 out.mp4y
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil 56. 42.100 / 56. 42.100
libavcodec 58. 73.102 / 58. 73.102
libavformat 58. 39.101 / 58. 39.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 77.100 / 7. 77.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.83.100
Duration: 00:00:10.00, start: 0.000000, bitrate: 3826 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x960, 3825 kb/s, 10 fps, 10 tbr, 10240 tbn, 20 tbc (default)
Metadata:
handler_name : VideoHandler
File 'out.mp4y' already exists. Overwrite? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) -
Why is the filesize different when swapping audio tracks using ffmeg ?
20 août 2021, par BrianI have a movie that I have encoded using Handbrake on a Mac a long time ago. When I encoded the movie, I put the stereo audio as track 1 and the 5.1 audio as track 2. The starting filesize is 853,320,914 bytes. Below is the data from ffprobe.


ffprobe version 4.2.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2007-2019 the FFmpeg developers
 built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
 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-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
 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
 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 'Annabelle - Comes Home (2019).m4v':
 Metadata:
 major_brand : mp42
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 creation_time : 2020-04-06T22:40:36.000000Z
 encoder : HandBrake 1.1.2 2018090500
 Duration: 01:46:04.86, start: 0.000000, bitrate: 1072 kb/s
 Chapter #0:0: start 0.000000, end 476.986000
 Metadata:
 title : Chapter 1
 Chapter #0:1: start 476.986000, end 933.608000
 Metadata:
 title : Chapter 2
 Chapter #0:2: start 933.608000, end 1441.449000
 Metadata:
 title : Chapter 3
 Chapter #0:3: start 1441.449000, end 1976.358000
 Metadata:
 title : Chapter 4
 Chapter #0:4: start 1976.358000, end 2579.753000
 Metadata:
 title : Chapter 5
 Chapter #0:5: start 2579.753000, end 3149.030000
 Metadata:
 title : Chapter 6
 Chapter #0:6: start 3149.030000, end 3726.941000
 Metadata:
 title : Chapter 7
 Chapter #0:7: start 3726.941000, end 3973.520000
 Metadata:
 title : Chapter 8
 Chapter #0:8: start 3973.520000, end 4504.676000
 Metadata:
 title : Chapter 9
 Chapter #0:9: start 4504.676000, end 4904.409000
 Metadata:
 title : Chapter 10
 Chapter #0:10: start 4904.409000, end 5421.592000
 Metadata:
 title : Chapter 11
 Chapter #0:11: start 5421.592000, end 5998.001000
 Metadata:
 title : Chapter 12
 Chapter #0:12: start 5998.001000, end 6364.075000
 Metadata:
 title : Chapter 13
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x360 [SAR 32:27 DAR 64:27], 519 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : VideoHandler
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 162 kb/s (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Stereo
 Stream #0:2(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Surround
 Side data:
 audio service type: main
 Stream #0:3(eng): Data: bin_data (text / 0x74786574)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : SubtitleHandler
Unsupported codec with id 100359 for input stream 3


My goal is to swap the stereo audio track with the 5.1 audio track and make the 5.1 audio track the default without having to reencode. To do this, I used the following command :


ffmpeg -i "Annabelle - Comes Home (2019)/Annabelle - Comes Home (2019)_old.m4v" -map 0:v:0 -map 0:a:1 -map 0:a:0 -disposition:a:0 default -disposition:a:1 none -c copy "Annabelle - Comes Home (2019)/Annabelle - Comes Home (2019).m4v"


Everything works as it should, I think anyways as I didn't get any errors...


ffmpeg version 4.2.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
 built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
 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-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
 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
 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 'Annabelle - Comes Home (2019)/Annabelle - Comes Home (2019)_old.m4v':
 Metadata:
 major_brand : mp42
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 creation_time : 2020-04-06T22:40:36.000000Z
 encoder : HandBrake 1.1.2 2018090500
 Duration: 01:46:04.86, start: 0.000000, bitrate: 1072 kb/s
 Chapter #0:0: start 0.000000, end 476.986000
 Metadata:
 title : Chapter 1
 Chapter #0:1: start 476.986000, end 933.608000
 Metadata:
 title : Chapter 2
 Chapter #0:2: start 933.608000, end 1441.449000
 Metadata:
 title : Chapter 3
 Chapter #0:3: start 1441.449000, end 1976.358000
 Metadata:
 title : Chapter 4
 Chapter #0:4: start 1976.358000, end 2579.753000
 Metadata:
 title : Chapter 5
 Chapter #0:5: start 2579.753000, end 3149.030000
 Metadata:
 title : Chapter 6
 Chapter #0:6: start 3149.030000, end 3726.941000
 Metadata:
 title : Chapter 7
 Chapter #0:7: start 3726.941000, end 3973.520000
 Metadata:
 title : Chapter 8
 Chapter #0:8: start 3973.520000, end 4504.676000
 Metadata:
 title : Chapter 9
 Chapter #0:9: start 4504.676000, end 4904.409000
 Metadata:
 title : Chapter 10
 Chapter #0:10: start 4904.409000, end 5421.592000
 Metadata:
 title : Chapter 11
 Chapter #0:11: start 5421.592000, end 5998.001000
 Metadata:
 title : Chapter 12
 Chapter #0:12: start 5998.001000, end 6364.075000
 Metadata:
 title : Chapter 13
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x360 [SAR 32:27 DAR 64:27], 519 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : VideoHandler
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 162 kb/s (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Stereo
 Stream #0:2(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Surround
 Side data:
 audio service type: main
 Stream #0:3(eng): Data: bin_data (text / 0x74786574)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : SubtitleHandler
[ipod @ 0x7faff0014000] track 1: codec frame size is not set
Output #0, ipod, to 'Annabelle - Comes Home (2019)/Annabelle - Comes Home (2019).m4v':
 Metadata:
 major_brand : mp42
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Chapter #0:0: start 0.000000, end 476.986000
 Metadata:
 title : Chapter 1
 Chapter #0:1: start 476.986000, end 933.608000
 Metadata:
 title : Chapter 2
 Chapter #0:2: start 933.608000, end 1441.449000
 Metadata:
 title : Chapter 3
 Chapter #0:3: start 1441.449000, end 1976.358000
 Metadata:
 title : Chapter 4
 Chapter #0:4: start 1976.358000, end 2579.753000
 Metadata:
 title : Chapter 5
 Chapter #0:5: start 2579.753000, end 3149.030000
 Metadata:
 title : Chapter 6
 Chapter #0:6: start 3149.030000, end 3726.941000
 Metadata:
 title : Chapter 7
 Chapter #0:7: start 3726.941000, end 3973.520000
 Metadata:
 title : Chapter 8
 Chapter #0:8: start 3973.520000, end 4504.676000
 Metadata:
 title : Chapter 9
 Chapter #0:9: start 4504.676000, end 4904.409000
 Metadata:
 title : Chapter 10
 Chapter #0:10: start 4904.409000, end 5421.592000
 Metadata:
 title : Chapter 11
 Chapter #0:11: start 5421.592000, end 5998.001000
 Metadata:
 title : Chapter 12
 Chapter #0:12: start 5998.001000, end 6364.075000
 Metadata:
 title : Chapter 13
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x360 [SAR 32:27 DAR 64:27], q=2-31, 519 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 90k tbc (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : VideoHandler
 Stream #0:1(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Surround
 Side data:
 audio service type: main
 Stream #0:2(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 162 kb/s
 Metadata:
 creation_time : 2020-04-06T22:40:36.000000Z
 handler_name : Stereo
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:2 -> #0:1 (copy)
 Stream #0:1 -> #0:2 (copy)
Press [q] to stop, [?] for help
frame=152602 fps=12872 q=-1.0 Lsize= 834270kB time=01:46:04.79 bitrate=1073.8kbits/s speed= 537x 
video:403702kB audio:424714kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.706676%


Here is the resulting ffprobe of the new file showing it swapped the audio tracks :


ffprobe version 4.2.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2007-2019 the FFmpeg developers
 built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
 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-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
 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
 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 'Annabelle - Comes Home (2019).m4v':
 Metadata:
 major_brand : M4V 
 minor_version : 512
 compatible_brands: isomiso2avc1
 encoder : Lavf58.29.100
 Duration: 01:46:04.86, start: 0.000000, bitrate: 1073 kb/s
 Chapter #0:0: start 0.000000, end 476.986000
 Metadata:
 title : Chapter 1
 Chapter #0:1: start 476.986000, end 933.608000
 Metadata:
 title : Chapter 2
 Chapter #0:2: start 933.608000, end 1441.449000
 Metadata:
 title : Chapter 3
 Chapter #0:3: start 1441.449000, end 1976.358000
 Metadata:
 title : Chapter 4
 Chapter #0:4: start 1976.358000, end 2579.753000
 Metadata:
 title : Chapter 5
 Chapter #0:5: start 2579.753000, end 3149.030000
 Metadata:
 title : Chapter 6
 Chapter #0:6: start 3149.030000, end 3726.941000
 Metadata:
 title : Chapter 7
 Chapter #0:7: start 3726.941000, end 3973.520000
 Metadata:
 title : Chapter 8
 Chapter #0:8: start 3973.520000, end 4504.676000
 Metadata:
 title : Chapter 9
 Chapter #0:9: start 4504.676000, end 4904.409000
 Metadata:
 title : Chapter 10
 Chapter #0:10: start 4904.409000, end 5421.592000
 Metadata:
 title : Chapter 11
 Chapter #0:11: start 5421.592000, end 5998.001000
 Metadata:
 title : Chapter 12
 Chapter #0:12: start 5998.001000, end 6364.075000
 Metadata:
 title : Chapter 13
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x360 [SAR 32:27 DAR 64:27], 519 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
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 handler_name : Surround
 Side data:
 audio service type: main
 Stream #0:2(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 162 kb/s
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 handler_name : Stereo
 Stream #0:3(eng): Data: bin_data (text / 0x74786574)
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 handler_name : SubtitleHandler
Unsupported codec with id 100359 for input stream 3


What I don't understand is why is the file size different ? The resulting file is larger at 854,292,790 bytes. Shouldn't the file sizes be the same since I literally just swapped tracks 0 and 1 ?


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