March 2024 - FFmpeg-trac - lists.ffmpeg.org

#4888(avcodec:new): 62bd8deef causes a regression in HEVC decoding
by FFmpeg 24 Feb '25

24 Feb '25

#4888: 62bd8deef causes a regression in HEVC decoding ----------------------------------+-------------------------------------- Reporter: staalebk | Type: defect Status: new | Priority: normal Component: avcodec | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Summary of the bug: I'm trying to extract a thumb from the middle of a live TS, containing one HEVC-stream. Before this patch I would always get a good looking thumb, but with this patch I would for the most part get a mostly gray frame. If I generates a few more thumbnails i see that it eventually spits out the same frame that ffmpeg before this patch produced as the first thumb, and it looks OK. However it is much more blocky than what the previous ffmpeg produced. How to reproduce (b7baebb75 is the commit just before the patch): {{{ % ./ffmpeg.b7baebb75 -an -i hevc_fail.ts -vframes 1 before_patch%d.jpg ffmpeg version N-74781-gb7baebb Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.7 (Debian 4.7.2-5) configuration: libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 [NULL @ 0x1f74780] PPS id out of range: 0 [hevc @ 0x1f74780] PPS id out of range: 0 [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. [hevc @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1f74780] Error parsing NAL unit #2. Input #0, mpegts, from 'hevc_fail.ts': Duration: 00:00:02.50, start: 2237.360033, bitrate: 7740 kb/s Stream #0:0[0x1e1]: Video: hevc (Main 10), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 90k tbn, 23.98 tbc [swscaler @ 0x1f9a140] deprecated pixel format used, make sure you did set range correctly Output #0, image2, to 'before_patch%d.jpg': Metadata: encoder : Lavf56.40.101 Stream #0:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc Metadata: encoder : Lavc56.60.100 mjpeg Stream mapping: Stream #0:0 -> #0:0 (hevc (native) -> mjpeg (native)) Press [q] to stop, [?] for help [NULL @ 0x1f74780] PPS id out of range: 0 [hevc @ 0x2052600] PPS id out of range: 0 [hevc @ 0x2052600] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x20609a0] PPS id out of range: 0 [hevc @ 0x20609a0] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 [hevc @ 0x2072400] PPS id out of range: 0 [hevc @ 0x2072400] Error parsing NAL unit #2. [hevc @ 0x2083e60] PPS id out of range: 0 [hevc @ 0x2083e60] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x20958c0] PPS id out of range: 0 [hevc @ 0x20958c0] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 [hevc @ 0x20a7320] PPS id out of range: 0 [hevc @ 0x20a7320] Error parsing NAL unit #2. [hevc @ 0x20b8d80] PPS id out of range: 0 [hevc @ 0x20b8d80] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x20ca7e0] PPS id out of range: 0 [hevc @ 0x20ca7e0] Error parsing NAL unit #2. Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x20dc240] PPS id out of range: 0 [hevc @ 0x20dc240] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x2052600] PPS id out of range: 0 [hevc @ 0x2052600] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x20609a0] PPS id out of range: 0 [hevc @ 0x20609a0] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x2072400] PPS id out of range: 0 [hevc @ 0x2072400] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x2083e60] PPS id out of range: 0 [hevc @ 0x2083e60] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x20958c0] PPS id out of range: 0 [hevc @ 0x20958c0] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x20a7320] PPS id out of range: 0 [hevc @ 0x20a7320] Error parsing NAL unit #2. [NULL @ 0x1f74780] PPS id out of range: 0 Error while decoding stream #0:0: Invalid data found when processing input [hevc @ 0x20b8d80] PPS id out of range: 0 [hevc @ 0x20b8d80] Error parsing NAL unit #2. Error while decoding stream #0:0: Invalid data found when processing input Last message repeated 7 times frame= 1 fps=0.0 q=7.5 Lsize=N/A time=00:00:00.75 bitrate=N/A video:108kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Conversion failed! }}} This gives me one image, before_patch1.jpg that looks completly fine. http://kolbu.ws/~chiller/ffmpeg_bug/before_patch1.jpg Now I do the same with the patch: {{{ ffmpeg version N-74782-g62bd8de Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.7 (Debian 4.7.2-5) configuration: libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 [NULL @ 0x1dc2780] PPS id out of range: 0 [hevc @ 0x1dc2780] PPS id out of range: 0 [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. [hevc @ 0x1dc2780] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x1dc2780] Error parsing NAL unit #2. Input #0, mpegts, from 'hevc_fail.ts': Duration: 00:00:02.50, start: 2237.360033, bitrate: 7740 kb/s Stream #0:0[0x1e1]: Video: hevc (Main 10), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 90k tbn, 23.98 tbc [swscaler @ 0x1dec4e0] deprecated pixel format used, make sure you did set range correctly Output #0, image2, to 'with_patch%d.jpg': Metadata: encoder : Lavf56.40.101 Stream #0:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc Metadata: encoder : Lavc56.60.100 mjpeg Stream mapping: Stream #0:0 -> #0:0 (hevc (native) -> mjpeg (native)) Press [q] to stop, [?] for help [hevc @ 0x1ea0760] Could not find ref with POC 12 [hevc @ 0x1ea0760] Could not find ref with POC 15 frame= 1 fps=0.0 q=5.0 Lsize=N/A time=00:00:00.04 bitrate=N/A video:69kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown }}} This gives me one file with_patch1.jpg that looks garbaged. http://kolbu.ws/~chiller/ffmpeg_bug/with_patch1.jpg If I re-run the last command with -vframes 100 it generates 60 images, where image 18 is almost identical to the before_patch1.jpg, except a bit more blocky. http://kolbu.ws/~chiller/ffmpeg_bug/with_patch18.jpg Here is the link to the .ts-file: http://kolbu.ws/~chiller/ffmpeg_bug/hevc_fail.ts and all files involved can be viewed here: http://kolbu.ws/~chiller/ffmpeg_bug/ (The most important ones are attached) -- Ticket URL: <https://trac.ffmpeg.org/ticket/4888> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 10

#9412(avformat:new): HEVC fails to seek on keyframe
by FFmpeg 24 Feb '25

24 Feb '25

#9412: HEVC fails to seek on keyframe -----------------------------------+-------------------------------------- Reporter: SuRGeoNix | Type: defect Status: new | Priority: important Component: avformat | Version: git-master Keywords: hevc seek | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -----------------------------------+-------------------------------------- I'm using av_seek_frame and even if it returns 0 pb will not be at an actual keyframe. The issues seems to happen with any HEVC/mpeg-ts format container. [Format ] MPEG-TS (MPEG-2 Transport Stream)/mpegts [Video #0] hevc yuv420p10le 3840x2160 @ 59,94 [Audio #1-eng] aac fltp@0 48KHz stereo I've tested also with ffplay which fails as well with the following output {{{ C:\Users\Owner\Downloads\ffmpegmb\bin>ffplay.exe -ss 00:01:00 -analyzeduration 100000000000 -probesize 100000000000 "c:\root\down\samples\hd\LG Chess 4K Demo.ts" ffplay version N-103543-gc655a734b1-20210907 Copyright (c) 2003-2021 the FFmpeg developers built with gcc 10-win32 (GCC) 20210408 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --enable-libvmaf --enable-vulkan --disable-libxcb --disable-xlib --enable- amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra- version=20210907 libavutil 57. 4.101 / 57. 4.101 libavcodec 59. 7.102 / 59. 7.102 libavformat 59. 5.100 / 59. 5.100 libavdevice 59. 0.101 / 59. 0.101 libavfilter 8. 7.101 / 8. 7.101 libswscale 6. 1.100 / 6. 1.100 libswresample 4. 0.100 / 4. 0.100 libpostproc 56. 0.100 / 56. 0.100 [mpegts @ 00000282a0400480] stream 0 : no PTS found at end of file, duration not set Input #0, mpegts, from 'c:\root\down\samples\hd\LG Chess 4K Demo.ts': Duration: 00:01:52.92, start: 1.066722, bitrate: 62572 kb/s Program 1 Stream #0:0[0x101]: Video: hevc (Main 10) ([36][0][0][0] / 0x0024), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn Stream #0:1[0x102](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 383 kb/s [aac @ 00000282a5beb040] channel element 0.0 is not allocated [hevc @ 00000282a8b2d040] Could not find ref with POC 15 0B f=0/0 [hevc @ 00000282a8b2d040] Could not find ref with POC 13 [hevc @ 00000282a8b2d040] Could not find ref with POC 17 [hevc @ 00000282a8b2d040] Could not find ref with POC 21 [hevc @ 00000282a8b2d040] Could not find ref with POC 28 0B f=0/0 62.26 A-V: -0.025 fd= 3 aq= 47KB vq=11446KB sq= 0B f=0/0 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/9412> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 21

#9346(undetermined:new): failed with error info "partial file" when input a mp4 file via unix socket
by FFmpeg 07 Feb '25

07 Feb '25

#9346: failed with error info "partial file" when input a mp4 file via unix socket -------------------------------------+------------------------------------- Reporter: ku7iex2E | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: unix-socket | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- failed when via unix socket, but nothing wrong when you input it just as a normal file. log of unix socket one: {{{ % cat 1.mp4 | socat - unix-listen:/tmp/abcd & % ffmpeg -report -i unix:///tmp/abcd -c copy out.mkv }}} {{{ ffmpeg started on 2021-07-24 at 23:10:04 Report written to "ffmpeg-20210724-231004.log" Log level: 48 Command line: ffmpeg -report -i unix:///tmp/abcd -c copy out.mkv ffmpeg version n4.4 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 11.1.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable- stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable- ladspa --enable-libaom --enable-libass --enable-libbluray --enable- libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable- libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable- libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable- libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable- libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable- libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-shared --enable-version3 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 Splitting the commandline. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Reading option '-i' ... matched as input url with argument 'unix:///tmp/abcd'. Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'. Reading option 'out.mkv' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option report (generate a report) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url unix:///tmp/abcd. Successfully parsed a group of options. Opening an input file: unix:///tmp/abcd. [NULL @ 0x55b6bf062440] Opening 'unix:///tmp/abcd' for reading [unix @ 0x55b6bf0630c0] No default whitelist set [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] ISO: File Type Major Brand: dash [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] Unknown dref type 0x206c7275 size 12 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180002970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180004500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180006030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180007470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180009000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180010530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180011970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180013500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180015030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180016470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180018000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180019530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180020970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180022500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180024030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180025470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180027000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180028530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180029970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180031500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180033030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180034470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180036000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180037530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180038970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180040500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180042030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180043470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180045000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180046530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180047970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180049500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180051030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180052470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180054000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180055530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180056970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180058500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180060030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180061470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180063000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180064530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180065970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180067500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180069030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180070470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180072000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180073530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180074970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180076500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180078030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180079470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180081000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180082530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180083970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180085500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180087030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180088470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180090000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] found tfdt time 180091530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] Before avformat_find_stream_info() pos: 543003 bytes read:543003 seeks:0 nb_streams:1 [h264 @ 0x55b6bf064480] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0x55b6bf064480] nal_unit_type: 8(PPS), nal_ref_idc: 3 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] stream 0, offset 0x885: partial file [h264 @ 0x55b6bf064480] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0x55b6bf064480] nal_unit_type: 8(PPS), nal_ref_idc: 3 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1920x1080, 2 kb/s): unspecified pixel format Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] After avformat_find_stream_info() pos: 543003 bytes read:543003 seeks:0 frames:0 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'unix:///tmp/abcd': Metadata: major_brand : dash minor_version : 0 compatible_brands: iso6avc1mp41 creation_time : 2021-07-23T10:29:14.000000Z Duration: 00:33:21.03, bitrate: N/A Stream #0:0(und), 0, 1/90000: Video: h264 (avc1 / 0x31637661), none, 1920x1080, 2 kb/s, 60 fps, 90k tbr, 90k tbn, 180k tbc (default) Metadata: creation_time : 2021-07-23T10:29:14.000000Z handler_name : ISO Media file produced by Google Inc. Created on: 07/23/2021. vendor_id : [0][0][0][0] Successfully opened the file. Parsing a group of options: output url out.mkv. Applying option c (codec name) with argument copy. Successfully parsed a group of options. Opening an output file: out.mkv. [file @ 0x55b6bf06a380] Setting default whitelist 'file,crypto,data' Successfully opened the file. [matroska @ 0x55b6bf08fec0] get_metadata_duration returned: 0 Output #0, matroska, to 'out.mkv': Metadata: major_brand : dash minor_version : 0 compatible_brands: iso6avc1mp41 encoder : Lavf58.76.100 Stream #0:0(und), 0, 1/1000: Video: h264 (avc1 / 0x31637661), none, 1920x1080, q=2-31, 2 kb/s, 60 fps, 90k tbr, 1k tbn, 90k tbc (default) Metadata: creation_time : 2021-07-23T10:29:14.000000Z handler_name : ISO Media file produced by Google Inc. Created on: 07/23/2021. vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream) [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55b6bf062440] stream 0, offset 0x3aa3c: partial file unix:///tmp/abcd: Invalid data found when processing input frame= 0 fps=0.0 q=-1.0 size= 1kB time=00:00:00.00 bitrate=N/A speed=N/A No more output streams to write to, finishing. [matroska @ 0x55b6bf08fec0] end duration = 0 [matroska @ 0x55b6bf08fec0] stream 0 end duration = 0 frame= 0 fps=0.0 q=-1.0 Lsize= 1kB time=00:00:00.00 bitrate=N/A speed= 0x video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Input file #0 (unix:///tmp/abcd): Input stream #0:0 (video): 0 packets read (0 bytes); Total: 0 packets (0 bytes) demuxed Output file #0 (out.mkv): Output stream #0:0 (video): 0 packets muxed (0 bytes); Total: 0 packets (0 bytes) muxed 0 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x55b6bf06a5c0] Statistics: 0 seeks, 1 writeouts [AVIOContext @ 0x55b6bf06b4c0] Statistics: 543003 bytes read, 0 seeks }}} as normal file: {{{ % ffmpeg -report -i 1.mp4 -c copy out.mkv }}} {{{ ffmpeg started on 2021-07-24 at 23:18:12 Report written to "ffmpeg-20210724-231812.log" Log level: 48 Command line: ffmpeg -report -i 1.mp4 -c copy out.mkv ffmpeg version n4.4 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 11.1.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable- stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable- ladspa --enable-libaom --enable-libass --enable-libbluray --enable- libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable- libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable- libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable- libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable- libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable- libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-shared --enable-version3 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 Splitting the commandline. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Reading option '-i' ... matched as input url with argument '1.mp4'. Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'. Reading option 'out.mkv' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option report (generate a report) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url 1.mp4. Successfully parsed a group of options. Opening an input file: 1.mp4. [NULL @ 0x562e0207f440] Opening '1.mp4' for reading [file @ 0x562e020800c0] Setting default whitelist 'file,crypto,data' [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] ISO: File Type Major Brand: dash [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] Unknown dref type 0x206c7275 size 12 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180002970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180004500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180006030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180007470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180009000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180010530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180011970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180013500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180015030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180016470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180018000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180019530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180020970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180022500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180024030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180025470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180027000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180028530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180029970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180031500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180033030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180034470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180036000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180037530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180038970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180040500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180042030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180043470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180045000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180046530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180047970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180049500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180051030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180052470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180054000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180055530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180056970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180058500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180060030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180061470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180063000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180064530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180065970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180067500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180069030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180070470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180072000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180073530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180074970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180076500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180078030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180079470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180081000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180082530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180083970, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180085500, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180087030, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180088470, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180090000, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] found tfdt time 180091530, using it for dts [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] Before avformat_find_stream_info() pos: 538788 bytes read:335691 seeks:1 nb_streams:1 [h264 @ 0x562e02081440] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0x562e02081440] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0x562e02081440] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0x562e02081440] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0x562e02081440] nal_unit_type: 5(IDR), nal_ref_idc: 1 [h264 @ 0x562e02081440] Format yuv420p chosen by get_format(). [h264 @ 0x562e02081440] Reinit context to 1920x1088, pix_fmt: yuv420p [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [h264 @ 0x562e02081440] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] All info found [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 59.000000 0.009372 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 59.000000 0.009372 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 60.000000 0.000259 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 120.000000 0.001036 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 240.000000 0.004144 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 59.940060 0.000285 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] rfps: 59.940060 0.000285 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x562e0207f440] After avformat_find_stream_info() pos: 325855 bytes read:671894 seeks:2 frames:21 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4': Metadata: major_brand : dash minor_version : 0 compatible_brands: iso6avc1mp41 creation_time : 2021-07-23T10:29:14.000000Z Duration: 00:33:21.03, start: 2000.033000, bitrate: 2 kb/s Stream #0:0(und), 21, 1/90000: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 2 kb/s, 60 fps, 60 tbr, 90k tbn, 120 tbc (default) Metadata: creation_time : 2021-07-23T10:29:14.000000Z handler_name : ISO Media file produced by Google Inc. Created on: 07/23/2021. vendor_id : [0][0][0][0] Successfully opened the file. Parsing a group of options: output url out.mkv. Applying option c (codec name) with argument copy. Successfully parsed a group of options. Opening an output file: out.mkv. [file @ 0x562e021a7b40] Setting default whitelist 'file,crypto,data' Successfully opened the file. [matroska @ 0x562e020a9140] get_metadata_duration returned: 0 Output #0, matroska, to 'out.mkv': Metadata: major_brand : dash minor_version : 0 compatible_brands: iso6avc1mp41 encoder : Lavf58.76.100 Stream #0:0(und), 0, 1/1000: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 2 kb/s, 60 fps, 60 tbr, 1k tbn, 90k tbc (default) Metadata: creation_time : 2021-07-23T10:29:14.000000Z handler_name : ISO Media file produced by Google Inc. Created on: 07/23/2021. vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream) [matroska @ 0x562e020a9140] Starting new cluster with timestamp 0 at offset 813 bytes [matroska @ 0x562e020a9140] Writing block of size 237899 with pts 0, dts 0, duration 17 at relative offset 9 in cluster at offset 813. TrackNumber 1, keyframe 1 frame= 1 fps=0.0 q=-1.0 size= 1kB time=00:00:00.00 bitrate=6504.0kbits/s speed=N/A [matroska @ 0x562e020a9140] Writing block of size 3299 with pts 17, dts 17, duration 17 at relative offset 237916 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 3590 with pts 34, dts 34, duration 17 at relative offset 241222 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5085 with pts 50, dts 50, duration 17 at relative offset 244819 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5473 with pts 67, dts 67, duration 17 at relative offset 249911 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 450 with pts 84, dts 84, duration 17 at relative offset 255391 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5351 with pts 100, dts 100, duration 17 at relative offset 255848 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 2725 with pts 117, dts 117, duration 17 at relative offset 261206 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5392 with pts 134, dts 134, duration 17 at relative offset 263938 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4868 with pts 150, dts 150, duration 17 at relative offset 269337 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6532 with pts 167, dts 167, duration 17 at relative offset 274212 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5220 with pts 184, dts 184, duration 17 at relative offset 280751 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4625 with pts 200, dts 200, duration 17 at relative offset 285978 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6163 with pts 217, dts 217, duration 17 at relative offset 290610 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4404 with pts 234, dts 234, duration 17 at relative offset 296780 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 2283 with pts 250, dts 250, duration 17 at relative offset 301191 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5051 with pts 267, dts 267, duration 17 at relative offset 303481 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 2612 with pts 284, dts 284, duration 17 at relative offset 308539 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4273 with pts 300, dts 300, duration 17 at relative offset 311158 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5313 with pts 317, dts 317, duration 17 at relative offset 315438 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 906 with pts 334, dts 334, duration 17 at relative offset 320758 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5078 with pts 350, dts 350, duration 17 at relative offset 321671 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6375 with pts 367, dts 367, duration 17 at relative offset 326756 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4300 with pts 384, dts 384, duration 17 at relative offset 333138 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5380 with pts 400, dts 400, duration 17 at relative offset 337445 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5098 with pts 417, dts 417, duration 17 at relative offset 342832 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6783 with pts 434, dts 434, duration 17 at relative offset 347937 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 10311 with pts 450, dts 450, duration 17 at relative offset 354727 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 8328 with pts 467, dts 467, duration 17 at relative offset 365045 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6470 with pts 484, dts 484, duration 17 at relative offset 373380 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5430 with pts 500, dts 500, duration 17 at relative offset 379857 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5271 with pts 517, dts 517, duration 17 at relative offset 385294 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4991 with pts 534, dts 534, duration 17 at relative offset 390572 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6380 with pts 550, dts 550, duration 17 at relative offset 395570 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5495 with pts 567, dts 567, duration 17 at relative offset 401957 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4340 with pts 584, dts 584, duration 17 at relative offset 407459 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5432 with pts 600, dts 600, duration 17 at relative offset 411806 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5549 with pts 617, dts 617, duration 17 at relative offset 417245 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4001 with pts 634, dts 634, duration 17 at relative offset 422801 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 3842 with pts 650, dts 650, duration 17 at relative offset 426809 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 3661 with pts 667, dts 667, duration 17 at relative offset 430658 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5283 with pts 684, dts 684, duration 17 at relative offset 434326 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5755 with pts 700, dts 700, duration 17 at relative offset 439616 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5392 with pts 717, dts 717, duration 17 at relative offset 445378 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 3386 with pts 734, dts 734, duration 17 at relative offset 450777 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6487 with pts 750, dts 750, duration 17 at relative offset 454170 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6699 with pts 767, dts 767, duration 17 at relative offset 460664 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5304 with pts 784, dts 784, duration 17 at relative offset 467370 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6309 with pts 800, dts 800, duration 17 at relative offset 472681 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6159 with pts 817, dts 817, duration 17 at relative offset 478997 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4314 with pts 834, dts 834, duration 17 at relative offset 485163 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4979 with pts 850, dts 850, duration 17 at relative offset 489484 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5891 with pts 867, dts 867, duration 17 at relative offset 494470 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4320 with pts 884, dts 884, duration 17 at relative offset 500368 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 6222 with pts 900, dts 900, duration 17 at relative offset 504695 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 3915 with pts 917, dts 917, duration 17 at relative offset 510924 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5739 with pts 934, dts 934, duration 17 at relative offset 514846 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 5626 with pts 950, dts 950, duration 17 at relative offset 520592 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4426 with pts 967, dts 967, duration 17 at relative offset 526225 in cluster at offset 813. TrackNumber 1, keyframe 0 [matroska @ 0x562e020a9140] Writing block of size 4215 with pts 984, dts 984, duration 17 at relative offset 530658 in cluster at offset 813. TrackNumber 1, keyframe 0 No more output streams to write to, finishing. [matroska @ 0x562e020a9140] end duration = 1001 [matroska @ 0x562e020a9140] stream 0 end duration = 1001 frame= 60 fps=0.0 q=-1.0 Lsize= 523kB time=00:00:00.98 bitrate=4351.1kbits/s speed= 437x video:522kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.239124% Input file #0 (1.mp4): Input stream #0:0 (video): 60 packets read (534450 bytes); Total: 60 packets (534450 bytes) demuxed Output file #0 (out.mkv): Output stream #0:0 (video): 60 packets muxed (534450 bytes); Total: 60 packets (534450 bytes) muxed 0 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x562e021aba40] Statistics: 2 seeks, 4 writeouts [AVIOContext @ 0x562e02088480] Statistics: 876513 bytes read, 2 seeks }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/9346> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10161(undetermined:new): MXF/FFV1 stream copy transmux discards content
by FFmpeg 06 Feb '25

06 Feb '25

#10161: MXF/FFV1 stream copy transmux discards content -------------------------------------+------------------------------------- Reporter: Jérôme | Type: defect Martinez | Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Using a MXF/FFV1 file e.g. from https://www.digitizationguidelines.gov/guidelines/MXF_app_sampleFiles.html#… , a conversion to any format (also again FFV1) is fine (frames are demuxed, decoded, encoded, muxed) but a pure demux with stream copy silently discards all frames, the output has the FFV1 header but 0 frame. Tested with Git 2023-01-29: {{{ PS > .\ffmpeg.exe -i RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.mxf RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.avi ffmpeg version N-109716-g757218564d-20230129 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12.2.0 (crosstool-NG 1.25.0.90_cf9beb1) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk- aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --disable-libmfx --enable-libvpl --enable-openal --enable-libopencore- amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable- schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable- libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable- libxvid --enable-libzimg --enable-libzvbi --extra- cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230129 libavutil 57. 44.100 / 57. 44.100 libavcodec 59. 59.100 / 59. 59.100 libavformat 59. 36.100 / 59. 36.100 libavdevice 59. 8.101 / 59. 8.101 libavfilter 8. 55.100 / 8. 55.100 libswscale 6. 8.112 / 6. 8.112 libswresample 4. 9.100 / 4. 9.100 libpostproc 56. 7.100 / 56. 7.100 [mxf @ 00000249c1caea00] could not resolve file descriptor strong ref Last message repeated 17 times Guessed Channel Layout for Input Stream #0.5 : mono Input #0, mxf, from 'RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.mxf': Metadata: operational_pattern_ul: 060e2b34.04010101.0d010201.01010900 uid : 0c0fd1ba-b4fa-49f2-a488-6a844a00df0d product_uid : b658a3f9-280d-463c-9c12-fd6dac6e1213 company_name : Metaglue Corporation product_name : MXFixer File Wrapper product_version : V5.2.4(22516) product_version_num: 5.2.4.22516.1 toolkit_version_num: 2.65.4.22516.1 application_platform: MXFplus(Windows 10 ( build 19044 ) (64-bit)) (with Metaglue Extensions)(BUF) built May 16 2022 11:47:21 modification_date: 2022-05-17T19:43:45.204000Z generation_uid : b1297cac-eab2-4c76-a0ed-7efd583a3a6a material_package_umid: 0x060A2B340101010501010D2013000000256C81631F7E4229A6E5AE305A0EB56C material_package_name: MXFWrap Clip timecode : 01:00:00:00 Duration: 00:00:19.96, start: 0.000000, bitrate: 312497 kb/s Stream #0:0: Video: ffv1, yuv422p(bottom first), 1920x1080, SAR 1:1 DAR 16:9, 25 tbr, 25 tbn Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : V1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:1: Data: none Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : D1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 data_type : vbi_vanc_smpte_436M Stream #0:2(eng): Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:3(spa): Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A2 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:4: Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A3 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:5: Audio: pcm_s16le, 48000 Hz, 1 channels, s16, 768 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A4 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream mapping: Stream #0:0 -> #0:0 (ffv1 (native) -> mpeg4 (native)) Stream #0:2 -> #0:1 (pcm_s24le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, avi, to 'RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.avi': Metadata: operational_pattern_ul: 060e2b34.04010101.0d010201.01010900 uid : 0c0fd1ba-b4fa-49f2-a488-6a844a00df0d product_uid : b658a3f9-280d-463c-9c12-fd6dac6e1213 ISMP : 01:00:00:00 material_package_name: MXFWrap Clip material_package_umid: 0x060A2B340101010501010D2013000000256C81631F7E4229A6E5AE305A0EB56C product_version_num: 5.2.4.22516.1 toolkit_version_num: 2.65.4.22516.1 application_platform: MXFplus(Windows 10 ( build 19044 ) (64-bit)) (with Metaglue Extensions)(BUF) built May 16 2022 11:47:21 modification_date: 2022-05-17T19:43:45.204000Z generation_uid : b1297cac-eab2-4c76-a0ed-7efd583a3a6a ISFT : Lavf59.36.100 Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p(tv, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : V1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 encoder : Lavc59.59.100 mpeg4 Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A Stream #0:1(eng): Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s32p Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 encoder : Lavc59.59.100 libmp3lame frame= 499 fps= 59 q=31.0 Lsize= 5431kB time=00:00:19.94 bitrate=2230.5kbits/s speed=2.37x video:5077kB audio:312kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.765648% PS > .\ffmpeg.exe -i RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.mxf -c copy RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517_c_copy.avi ffmpeg version N-109716-g757218564d-20230129 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12.2.0 (crosstool-NG 1.25.0.90_cf9beb1) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk- aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --disable-libmfx --enable-libvpl --enable-openal --enable-libopencore- amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable- schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable- libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable- libxvid --enable-libzimg --enable-libzvbi --extra- cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230129 libavutil 57. 44.100 / 57. 44.100 libavcodec 59. 59.100 / 59. 59.100 libavformat 59. 36.100 / 59. 36.100 libavdevice 59. 8.101 / 59. 8.101 libavfilter 8. 55.100 / 8. 55.100 libswscale 6. 8.112 / 6. 8.112 libswresample 4. 9.100 / 4. 9.100 libpostproc 56. 7.100 / 56. 7.100 [mxf @ 0000028800a7eb00] could not resolve file descriptor strong ref Last message repeated 17 times Guessed Channel Layout for Input Stream #0.5 : mono Input #0, mxf, from 'RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.mxf': Metadata: operational_pattern_ul: 060e2b34.04010101.0d010201.01010900 uid : 0c0fd1ba-b4fa-49f2-a488-6a844a00df0d product_uid : b658a3f9-280d-463c-9c12-fd6dac6e1213 company_name : Metaglue Corporation product_name : MXFixer File Wrapper product_version : V5.2.4(22516) product_version_num: 5.2.4.22516.1 toolkit_version_num: 2.65.4.22516.1 application_platform: MXFplus(Windows 10 ( build 19044 ) (64-bit)) (with Metaglue Extensions)(BUF) built May 16 2022 11:47:21 modification_date: 2022-05-17T19:43:45.204000Z generation_uid : b1297cac-eab2-4c76-a0ed-7efd583a3a6a material_package_umid: 0x060A2B340101010501010D2013000000256C81631F7E4229A6E5AE305A0EB56C material_package_name: MXFWrap Clip timecode : 01:00:00:00 Duration: 00:00:19.96, start: 0.000000, bitrate: 312497 kb/s Stream #0:0: Video: ffv1, yuv422p(bottom first), 1920x1080, SAR 1:1 DAR 16:9, 25 tbr, 25 tbn Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : V1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:1: Data: none Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : D1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 data_type : vbi_vanc_smpte_436M Stream #0:2(eng): Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:3(spa): Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A2 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:4: Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A3 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:5: Audio: pcm_s16le, 48000 Hz, 1 channels, s16, 768 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A4 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Output #0, avi, to 'RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517_c_copy.avi': Metadata: operational_pattern_ul: 060e2b34.04010101.0d010201.01010900 uid : 0c0fd1ba-b4fa-49f2-a488-6a844a00df0d product_uid : b658a3f9-280d-463c-9c12-fd6dac6e1213 ISMP : 01:00:00:00 material_package_name: MXFWrap Clip material_package_umid: 0x060A2B340101010501010D2013000000256C81631F7E4229A6E5AE305A0EB56C product_version_num: 5.2.4.22516.1 toolkit_version_num: 2.65.4.22516.1 application_platform: MXFplus(Windows 10 ( build 19044 ) (64-bit)) (with Metaglue Extensions)(BUF) built May 16 2022 11:47:21 modification_date: 2022-05-17T19:43:45.204000Z generation_uid : b1297cac-eab2-4c76-a0ed-7efd583a3a6a ISFT : Lavf59.36.100 Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p(bottom first), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 tbr, 25 tbn Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : V1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream #0:1(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s32 (24 bit), 2304 kb/s Metadata: file_package_umid: 0x060A2B340101010501010D20130000002E0B39D1937148F884B4BAD10C1E1663 file_package_name: File Package: SMPTE RPxxx frame wrapping of FFV1 video essence track_name : A1 reel_umid : 0x060A2B340101010501010D2013000000A7C8CFC27C64497D8FFA2CB623DF3D6F timecode : 01:00:00:00 Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:2 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=-1.0 Lsize= 5635kB time=00:00:19.92 bitrate=2317.6kbits/s speed=48.7x video:0kB audio:5614kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.386781% PS > dir RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517* Répertoire : C:\Users\jerom\Downloads\RDD48_FFV1_MXF Mode LastWriteTime Length Name ---- ------------- ------ ---- -a---- 30/01/2023 10:16 5560844 RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.avi -a---- 17/05/2022 22:25 779681924 RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517.mxf -a---- 30/01/2023 10:17 350112 RDD48_LakeJulianP1060231_50i_1920_MKV_FFV1_422_8_ag_20220517_c_copy.avi }}} The last file should have a size of 780 MB (copy of the FFV1 frames). behavior is a bit weird: - using ` -c:a copy` is fine (video frames are are transcoded; audio frames are transmuxed) - using ` -c:v copy` discards video frames and transcode audio (audio transcode is expected) - using ` -c copy` discards video frames and transcode audio (audio transcode is **not** expected) So audio transmux behavior is also impacted, this is not the case with e.g. https://samples.ffmpeg.org/MXF/Quantel%20widescreen%20test.mxf (using ` -c copy` does transmux for both video and audio) -- Ticket URL: <https://trac.ffmpeg.org/ticket/10161> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 2

#10920(avfilter:new): "paletteuse" keeps unused colors for PNG unnecessarily
by FFmpeg 06 Feb '25

06 Feb '25

#10920: "paletteuse" keeps unused colors for PNG unnecessarily -------------------------------------+------------------------------------- Reporter: | Type: MasterQuestionable | enhancement Status: new | Priority: normal Component: avfilter | Version: | unspecified Keywords: paletteuse | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Unsure for other formats. But for PNG, it's unnecessary. Tested with !`-lavfi "paletteuse=dither=none"`. See also: https://trac.ffmpeg.org/query?reporter=MasterQuestionable&time=2024-03-20&c… (my recent posts on "palettegen"/"paletteuse") -- Ticket URL: <https://trac.ffmpeg.org/ticket/10920> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 5

#4954(avformat:new): joint stereo indicator missing from mp3 headers
by FFmpeg 29 Jan '25

29 Jan '25

#4954: joint stereo indicator missing from mp3 headers -------------------------------------+------------------------------------- Reporter: pico4743 | Type: defect Status: new | Priority: normal Component: avformat | Version: git- Keywords: mp3 | master joint_stereo header | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: mp3 header files created by ffmpeg do not specify a channel mode of joint_stereo when joint_stereo is performed by libmp3lame. Details: libmp3lame provides a switch (-joint_stereo) to select either joint_stereo or plain stereo. The interface to lame works correctly so that the audio frames are fine, but ffmpeg doesn't use the lame library to write the mp3 header. Instead libavformat/mp3enc.c sets the channel mode to either MONO or STEREO based on how many channels there are. {{{ switch (codec->channels) { case 1: channels = MPA_MONO; break; case 2: channels = MPA_STEREO; break; default: av_log(s, AV_LOG_WARNING, "Unsupported number of channels, " "not writing Xing header.\n"); return -1; } ... header |= channels << 6; }}} MPA_JSTEREO should be used when appropriate. The repair doesn't seem simple, but I'd be willing to help if someone wants to discuss approaches. How to reproduce: {{{ use a version with libmp3lame enabled % ffmpeg -i input.mp3 -joint_stereo 1 output.mp3 The relevant bits of the output.mp3 header will be 0 == MPA_STEREO ffmpeg version -- git master fb4d350 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4954> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 19

#9814(undetermined:new): time_scale / num_units_in_tick is not infinite precision
by FFmpeg 28 Jan '25

28 Jan '25

#9814: time_scale / num_units_in_tick is not infinite precision -------------------------------------+------------------------------------- Reporter: Balling | Type: defect Status: new | Priority: normal Component: | Version: git- undetermined | master Keywords: | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: as you can read here https://www.ffmpeg.org/ffmpeg- bitstream-filters.html#h264_005fmetadata H.264 has time_scale / num_units_in_tick in the VUI parameters. That is how one writes frame rate (besides timing SEI that is) in Annex B files. The problem is that (not touching very broken mkv here with only ms precision and only PTS in the form of duration, no DTS) when you go to mp4 you are supposed to make it CFR and use the nice tbn. But even if you will use vfrdet on annex b file it will not be CFR. This sample in fact has even fixed_frame_rate_flag set! So this is a bug, ffplay also cannot even seek in this annex b file! Sample is here: https://github.com/wang-bin/QtAV/files/1132086/example.zip How to reproduce: {{{ ffmpeg -i example.h264 -vf vfrdet -f null NUL ffmpeg version N-107098-g4d45f5acbd-20220613 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 11.2.0 (crosstool-NG 1.24.0.533_681aaef) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-shared --disable-static --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable- libaribb24 --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable- libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable- librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable- libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra- ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra- version=20220613 libavutil 57. 26.100 / 57. 26.100 libavcodec 59. 33.100 / 59. 33.100 libavformat 59. 24.100 / 59. 24.100 libavdevice 59. 6.100 / 59. 6.100 libavfilter 8. 40.100 / 8. 40.100 libswscale 6. 6.100 / 6. 6.100 libswresample 4. 6.100 / 4. 6.100 libpostproc 56. 5.100 / 56. 5.100 Input #0, h264, from 'example.h264': Duration: N/A, bitrate: N/A Stream #0:0: Video: h264 (Main), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 1200k tbn Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native)) Press [q] to stop, [?] for help Output #0, null, to 'NUL': Metadata: encoder : Lavf59.24.100 Stream #0:0: Video: wrapped_avframe, yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn Metadata: encoder : Lavc59.33.100 wrapped_avframe frame= 1082 fps=912 q=-0.0 Lsize=N/A time=00:00:36.10 bitrate=N/A speed=30.4x video:499kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown [Parsed_vfrdet_0 @ 000001a582b7f900] VFR:0.799260 (864/217) min: 40040 max: 40041 avg: 40040 }}} What it should be as if -r 29.97002997 was before input. In fact Mediainfo can see all of it (both the timetamps of mp4 and time_scale / num_units_in_tick) in -c copy to mp4 with -r 29.97002997 and without. There were quite a lot of simliar bugs in that regard, but Annex B to mp4 is a clear case and is a clear bug. Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9814> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 32

#8515(avcodec:new): vc1_parser erroneously flagged every packet as keyframe
by FFmpeg 26 Jan '25

26 Jan '25

#8515: vc1_parser erroneously flagged every packet as keyframe -------------------------------------+------------------------------------- Reporter: HolyWu | Type: defect Status: new | Priority: normal Component: avcodec | Version: git- | master Keywords: vc-1 parser | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Since the commit of https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/701e8b42e12ad625c64ceae2252…, vc-1 parser erroneously flagged every packet as keyframe. If you recompile the tool with that commit reverted, you will get the expected result. The first shows the result with that commit. The second shows the result without that commit. {{{ $ ffprobe -pretty -show_packets vc1_sample.mkv [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=959 dts_time=0:00:00.959000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=9.016602 Kibyte pos=5494 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1001 dts_time=0:00:01.001000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=14734 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1043 dts_time=0:00:01.043000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=16302 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1084 dts_time=0:00:01.084000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=17869 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1126 dts_time=0:00:01.126000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=17881 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1168 dts_time=0:00:01.168000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=19449 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1210 dts_time=0:00:01.210000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=21016 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1251 dts_time=0:00:01.251000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=21028 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1293 dts_time=0:00:01.293000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=22596 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1335 dts_time=0:00:01.335000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=24163 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1376 dts_time=0:00:01.376000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=24175 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1418 dts_time=0:00:01.418000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=25743 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1460 dts_time=0:00:01.460000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=27310 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1502 dts_time=0:00:01.502000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=27322 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1543 dts_time=0:00:01.543000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=28890 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1585 dts_time=0:00:01.585000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=30457 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1627 dts_time=0:00:01.627000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=30469 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1668 dts_time=0:00:01.668000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=32037 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1710 dts_time=0:00:01.710000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=33604 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1752 dts_time=0:00:01.752000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=33616 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1793 dts_time=0:00:01.793000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=35184 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1835 dts_time=0:00:01.835000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=36751 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1877 dts_time=0:00:01.877000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=36763 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1919 dts_time=0:00:01.919000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=38331 flags=K_ [/PACKET] ffprobe version 4.2.git Copyright (c) 2007-2020 the FFmpeg developers built with gcc 9.2.0 (Rev2, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --disable-doc --disable- debug libavutil 56. 39.100 / 56. 39.100 libavcodec 58. 68.100 / 58. 68.100 libavformat 58. 38.100 / 58. 38.100 libavdevice 58. 9.103 / 58. 9.103 libavfilter 7. 75.100 / 7. 75.100 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100 Input #0, matroska,webm, from 'vc1_sample.mkv': Metadata: encoder : libebml v1.3.10 + libmatroska v1.5.2 creation_time : 2020-02-09T07:04:30.000000Z Duration: 00:00:01.00, bitrate: 321 kb/s Stream #0:0: Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default) Metadata: BPS-eng : 273405 DURATION-eng : 00:00:01.002000000 NUMBER_OF_FRAMES-eng: 24 NUMBER_OF_BYTES-eng: 34244 _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2020-02-09 07:04:30 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES }}} {{{ $ ffprobe -pretty -show_packets vc1_sample.mkv [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=959 dts_time=0:00:00.959000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=9.016602 Kibyte pos=5494 flags=K_ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1001 pts_time=0:00:01.001000 dts=1001 dts_time=0:00:01.001000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=14734 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1043 pts_time=0:00:01.043000 dts=1043 dts_time=0:00:01.043000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=16302 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1084 dts_time=0:00:01.084000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=17869 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1126 pts_time=0:00:01.126000 dts=1126 dts_time=0:00:01.126000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=17881 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1168 pts_time=0:00:01.168000 dts=1168 dts_time=0:00:01.168000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=19449 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1210 dts_time=0:00:01.210000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=21016 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1251 pts_time=0:00:01.251000 dts=1251 dts_time=0:00:01.251000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=21028 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1293 pts_time=0:00:01.293000 dts=1293 dts_time=0:00:01.293000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=22596 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1335 dts_time=0:00:01.335000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=24163 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1376 pts_time=0:00:01.376000 dts=1376 dts_time=0:00:01.376000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=24175 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1418 pts_time=0:00:01.418000 dts=1418 dts_time=0:00:01.418000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=25743 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1460 dts_time=0:00:01.460000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=27310 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1502 pts_time=0:00:01.502000 dts=1502 dts_time=0:00:01.502000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=27322 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1543 pts_time=0:00:01.543000 dts=1543 dts_time=0:00:01.543000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=28890 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1585 dts_time=0:00:01.585000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=30457 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1627 pts_time=0:00:01.627000 dts=1627 dts_time=0:00:01.627000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=30469 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1668 pts_time=0:00:01.668000 dts=1668 dts_time=0:00:01.668000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=32037 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1710 dts_time=0:00:01.710000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=33604 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1752 pts_time=0:00:01.752000 dts=1752 dts_time=0:00:01.752000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=33616 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1793 pts_time=0:00:01.793000 dts=1793 dts_time=0:00:01.793000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=35184 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=N/A pts_time=N/A dts=1835 dts_time=0:00:01.835000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=5 byte pos=36751 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1877 pts_time=0:00:01.877000 dts=1877 dts_time=0:00:01.877000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=36763 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=1919 pts_time=0:00:01.919000 dts=1919 dts_time=0:00:01.919000 duration=41 duration_time=0:00:00.041000 convergence_duration=N/A convergence_duration_time=N/A size=1.524414 Kibyte pos=38331 flags=__ [/PACKET] ffprobe version 4.2.git Copyright (c) 2007-2020 the FFmpeg developers built with gcc 9.2.0 (Rev2, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --disable-doc --disable- debug libavutil 56. 39.100 / 56. 39.100 libavcodec 58. 68.100 / 58. 68.100 libavformat 58. 38.100 / 58. 38.100 libavdevice 58. 9.103 / 58. 9.103 libavfilter 7. 75.100 / 7. 75.100 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100 Input #0, matroska,webm, from 'vc1_sample.mkv': Metadata: encoder : libebml v1.3.10 + libmatroska v1.5.2 creation_time : 2020-02-09T07:04:30.000000Z Duration: 00:00:01.00, bitrate: 321 kb/s Stream #0:0: Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default) Metadata: BPS-eng : 273405 DURATION-eng : 00:00:01.002000000 NUMBER_OF_FRAMES-eng: 24 NUMBER_OF_BYTES-eng: 34244 _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2020-02-09 07:04:30 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/8515> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 8

#7916(ffmpeg:new): Incorrect seeking for modplug formats
by FFmpeg 23 Jan '25

23 Jan '25

#7916: Incorrect seeking for modplug formats -------------------------------------+------------------------------------- Reporter: _abjd_ | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git- Keywords: modplug, | master seeking | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: How to reproduce: {{{ ffmpeg -ss 00:01:25.00 -i BUTTERFL.XM render.mp3 }}} Output: {{{ Input #0, libopenmpt, from 'BUTTERFL.XM': Metadata: title : Butterfly Flew Away encoder : FastTracker 2 or compatible Duration: 00:02:53.19, bitrate: 15 kb/s Stream #0:0: Audio: pcm_f32le, 48000 Hz, stereo, flt, 3072 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_f32le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, mp3, to 'render.mp3': Metadata: TIT2 : Butterfly Flew Away TSSE : Lavf58.26.101 Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp Metadata: encoder : Lavc58.47.102 libmp3lame size= 55kB time=00:00:03.40 bitrate= 131.5kbits/s speed=7.29x }}} Seeking to 1:25 in a 2:53 length file results in a 3.4 second output. This has happened with every modplug format I've tried so far. -- Ticket URL: <https://trac.ffmpeg.org/ticket/7916> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 5

#10741(avcodec:new): aac_at quality only settable with q:a, not global_quality:a
by FFmpeg 23 Jan '25

23 Jan '25

#10741: aac_at quality only settable with q:a, not global_quality:a -------------------------------------+------------------------------------- Reporter: Brandon R | Type: defect Status: new | Priority: normal Component: avcodec | Version: 6.0 Keywords: AAC | Blocked By: Audiotoolbox | Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- **Summary of the bug**: ''Expected behavior'': According to the [https://trac.ffmpeg.org/wiki/Encode/AAC#aac_at docs] and [https://github.com/FFmpeg/FFmpeg/blob/f009f849617ab0c2015d2a748892d55b37d37… source], when `-aac_at_mode` is not specified, the encoder defaults to VBR if audio quality is specified, which is done using `-global_quality:a`. ''Observed behavior'': `-global_quality:a` doesn't have any affect on mode or bitrate. When mode is not specified, the output is identical to using `aac_at` without providing any parameters, which I believe is 128 kb/s CBR. When the mode is explicitly set to VBR, VBR is used but `-global_quality:a` doesn't affect the bitrate. However, `-q:a` has the effect that `-global_quality:a` is supposed to have. **How to reproduce**: No mode specified, global quality 4 -> `bitrate= 130.7kbits/s` (same as `ffmpeg -i i.wav -c:a aac_at o.m4a`): {{{ $ ffmpeg -i In.wav -c:a aac_at -global_quality:a 4 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 227kB time=00:00:14.23 bitrate= 130.7kbits/s speed=45.3x video:0kB audio:224kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.424740% }}} No mode specified, global quality 10 -> `bitrate= 130.7kbits/s` (no change): {{{ $ ffmpeg -i In.wav -c:a aac_at -global_quality:a 10 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 227kB time=00:00:14.23 bitrate= 130.7kbits/s speed= 50x video:0kB audio:224kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.424740% }}} VBR specified, global quality 4 -> `bitrate= 360.6kbits/s` (same as when `-aac_at_mode vbr` is used without specifying quality): {{{ $ ffmpeg -i In.wav -c:a aac_at -aac_at_mode vbr -global_quality:a 4 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 627kB time=00:00:14.23 bitrate= 360.6kbits/s speed=44.1x video:0kB audio:623kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.511802% }}} VBR specified, global quality 10 -> `bitrate= 360.6kbits/s` (no change) {{{ $ ffmpeg -i In.wav -c:a aac_at -aac_at_mode vbr -global_quality:a 10 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 627kB time=00:00:14.23 bitrate= 360.6kbits/s speed=35.8x video:0kB audio:623kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.511802% }}} Using `-q:a` instead of `-global_quality:a`, with or without `-aac_at_mode vbr`, results in VBR outputs with different bitrates. For example: {{{ $ ffmpeg -i In.wav -c:a aac_at -aac_at_mode vbr -q:a 4 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 307kB time=00:00:14.23 bitrate= 176.7kbits/s speed=41.4x video:0kB audio:304kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.050192% }}} {{{ $ ffmpeg -i In.wav -c:a aac_at -q:a 10 Out.m4a ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.0.40.1) configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host- ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable- libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable- libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox libavutil 58. 2.100 / 58. 2.100 libavcodec 60. 3.100 / 60. 3.100 libavformat 60. 3.100 / 60. 3.100 libavdevice 60. 1.100 / 60. 1.100 libavfilter 9. 3.100 / 9. 3.100 libswscale 7. 1.100 / 7. 1.100 libswresample 4. 10.100 / 4. 10.100 libpostproc 57. 1.100 / 57. 1.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'In.wav': Duration: 00:00:14.23, bitrate: 1411 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (aac_at)) Press [q] to stop, [?] for help Output #0, ipod, to 'Out.m4a': Metadata: encoder : Lavf60.3.100 Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc60.3.100 aac_at size= 140kB time=00:00:14.23 bitrate= 80.5kbits/s speed=44.9x video:0kB audio:137kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.335356% }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/10741> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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