July 2017 - FFmpeg-trac - lists.ffmpeg.org

#5283(avcodec:new): Add bitstream filter to remove Closed Captions from h264
by FFmpeg 17 Apr '25

17 Apr '25

#5283: Add bitstream filter to remove Closed Captions from h264 ---------------------------------------+--------------------------------- Reporter: cehoyos | Owner: Type: enhancement | Status: new Priority: wish | Component: avcodec Version: git-master | Keywords: h264 cc Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 ---------------------------------------+--------------------------------- http://thread.gmane.org/gmane.comp.video.ffmpeg.user/61438/focus=61440 The sample from ticket #2885 contains Closed Captions, FFmpeg does not allow to remove them without reencoding. {{{ $ ffmpeg -i transformers.ts -vcodec copy out.h264 ffmpeg version N-78869-gdd2ea5c Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 55. 19.100 / 55. 19.100 libavcodec 57. 27.101 / 57. 27.101 libavformat 57. 27.102 / 57. 27.102 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 38.100 / 6. 38.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Input #0, mpegts, from 'transformers.ts': Duration: 00:01:59.29, start: 0.578456, bitrate: 9015 kb/s Program 1 Stream #0:0[0x1e1]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x1e2]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s Output #0, h264, to 'out.h264': Metadata: encoder : Lavf57.27.102 Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuvj420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help frame= 3575 fps=0.0 q=-1.0 Lsize= 118242kB time=00:01:59.25 bitrate=8122.6kbits/s speed= 580x video:118291kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown }}} {{{ $ ffmpeg -i out.h264 ffmpeg version N-78869-gdd2ea5c Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 55. 19.100 / 55. 19.100 libavcodec 57. 27.101 / 57. 27.101 libavformat 57. 27.102 / 57. 27.102 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 38.100 / 6. 38.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 [h264 @ 0x3a8c280] Stream #0: not enough frames to estimate rate; consider increasing probesize Input #0, h264, from 'out.h264': Duration: N/A, bitrate: N/A Stream #0:0: Video: h264 (High), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 1200k tbn, 59.94 tbc At least one output file must be specified }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5283> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 10

#4489(undetermined:new): mkv cropping
by FFmpeg 09 Apr '25

09 Apr '25

#4489: mkv cropping -------------------------------------+------------------------------------- Reporter: cehoyos | Owner: Type: | Status: new enhancement | Component: Priority: wish | undetermined Version: git- | Keywords: videolan master | mkv cropping Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 -------------------------------------+------------------------------------- (videolan ticket 13982) I will attach a sample that has cropping defined in its mkv headers. {{{ $ ffmpeg -i Matroska\ Crop_cut.mkv ffmpeg version N-71483-g8768f8f Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 54. 22.101 / 54. 22.101 libavcodec 56. 34.100 / 56. 34.100 libavformat 56. 30.100 / 56. 30.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 14.100 / 5. 14.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, matroska,webm, from 'Matroska Crop_cut.mkv': Metadata: encoder : libebml v1.2.2 + libmatroska v1.3.0 creation_time : 2012-08-03 22:48:21 Duration: 00:03:42.12, start: 0.000000, bitrate: 92 kb/s Stream #0:0(eng): Audio: aac (LC), 44100 Hz, stereo, fltp (default) Stream #0:1: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default) At least one output file must be specified }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4489> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 7

#5641(avformat:new): Support WebVTT according to MKV specs
by FFmpeg 07 Apr '25

07 Apr '25

#5641: Support WebVTT according to MKV specs -------------------------------------+------------------------------------- Reporter: RiCON | Type: defect Status: new | Priority: normal Component: avformat | Version: git- Keywords: webvtt | master matroska | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- FFmpeg supports the D_WEBVTT/SUBTITLES flavor following WebM specs (http://www.webmproject.org/docs/container/) but not the recent S_TEXT/WEBVTT flavor added to Matroska spec (https://matroska.org/technical/specs/codecid/index.html) likely close to it being added to mkvtoolnix in https://github.com/mbunkus/mkvtoolnix/commit/c0c8ea01 . It should probably also be changed to mux WebVTT tracks as S_TEXT/WEBVTT, at least to Matroska so mkvtoolnix recognizes the track as valid subtitles. {{{ ffmpeg -i cut-vtt.mkv ffmpeg version N-80317-gff53b66-g9da27fb+1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (Rev1, Built by MSYS2 project) configuration: --enable-libx264 --enable-libvpx --enable-libopus --disable-postproc --disable-doc --disable-demuxer=asf --disable-ffplay --enable-gpl --disable-debug libavutil 55. 24.100 / 55. 24.100 libavcodec 57. 46.100 / 57. 46.100 libavformat 57. 38.100 / 57. 38.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 46.101 / 6. 46.101 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 [matroska,webm @ 000000038f2d1c60] Unknown/unsupported AVCodecID S_TEXT/WEBVTT. [matroska,webm @ 000000038f2d1c60] Could not find codec parameters for stream 3 (Subtitle: none): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, matroska,webm, from 'cut-vtt.mkv': Metadata: encoder : libebml v1.3.3 + libmatroska v1.4.4 creation_time : 2016-06-14 12:56:53 Duration: 00:00:11.28, start: 0.000000, bitrate: 352 kb/s Stream #0:0: Video: vp9 (Profile 2), yuv420p10le(tv), 1280x720, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default) Metadata: BPS : 291322 BPS-eng : 291322 DURATION : 00:00:09.760000000 DURATION-eng : 00:00:09.760000000 NUMBER_OF_FRAMES: 234 NUMBER_OF_FRAMES-eng: 234 NUMBER_OF_BYTES : 355414 NUMBER_OF_BYTES-eng: 355414 _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_DATE_UTC: 2016-06-14 12:56:53 _STATISTICS_WRITING_DATE_UTC-eng: 2016-06-14 12:56:53 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:1: Audio: opus, 48000 Hz, stereo, fltp (default) (forced) Metadata: BPS : 107013 BPS-eng : 107013 DURATION : 00:00:09.758000000 DURATION-eng : 00:00:09.758000000 NUMBER_OF_FRAMES: 488 NUMBER_OF_FRAMES-eng: 488 NUMBER_OF_BYTES : 130530 NUMBER_OF_BYTES-eng: 130530 _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_DATE_UTC: 2016-06-14 12:56:53 _STATISTICS_WRITING_DATE_UTC-eng: 2016-06-14 12:56:53 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:2(eng): Subtitle: webvtt Metadata: title : FFmpeg BPS : 163 BPS-eng : 163 DURATION : 00:00:10.300000000 DURATION-eng : 00:00:10.300000000 NUMBER_OF_FRAMES: 5 NUMBER_OF_FRAMES-eng: 5 NUMBER_OF_BYTES : 211 NUMBER_OF_BYTES-eng: 211 _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_DATE_UTC: 2016-06-14 12:56:53 _STATISTICS_WRITING_DATE_UTC-eng: 2016-06-14 12:56:53 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:3: Subtitle: none (default) Metadata: title : mkvmerge BPS : 0 BPS-eng : 0 DURATION : 00:00:00.000000000 DURATION-eng : 00:00:00.000000000 NUMBER_OF_FRAMES: 0 NUMBER_OF_FRAMES-eng: 0 NUMBER_OF_BYTES : 0 NUMBER_OF_BYTES-eng: 0 _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit _STATISTICS_WRITING_DATE_UTC: 2016-06-14 12:56:53 _STATISTICS_WRITING_DATE_UTC-eng: 2016-06-14 12:56:53 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES At least one output file must be specified }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5641> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 7

#4298(avfilter:new): zoompan filter creates shaky image
by FFmpeg 05 Apr '25

05 Apr '25

#4298: zoompan filter creates shaky image ----------------------------------+-------------------------------------- Reporter: slhck | Type: defect Status: new | Priority: normal Component: avfilter | Version: git-master Keywords: zoompan | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Summary of the bug: When using the `zoompan` filter and setting any x or y (or both) value, the effect is shaky and jerky. How to reproduce: {{{ ffmpeg -framerate 25 -loop 1 -i in.jpg -vf "zoompan=z='min(zoom+0.0015,1.4)':x=50:d=150" -t 6 -s 640x380 out.mp4 ffmpeg version N-69568-g21051af Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable- libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable- libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable- libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 18.100 / 54. 18.100 libavcodec 56. 21.102 / 56. 21.102 libavformat 56. 19.100 / 56. 19.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 9.103 / 5. 9.103 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [mjpeg @ 0000000000342a60] ignoring invalid SAR: 540/409 Input #0, image2, from 'out.jpg': Duration: 00:00:00.04, start: 0.000000, bitrate: 3236 kb/s Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 640x360, 25 fps, 25 tbr, 25 tbn, 25 tbc File 'out.mp4' already exists. Overwrite ? [y/N] y [swscaler @ 0000000000307fe0] deprecated pixel format used, make sure you did set range correctly No pixel format specified, yuvj420p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. [libx264 @ 0000000004cf00a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 0000000004cf00a0] profile High, level 3.0 [libx264 @ 0000000004cf00a0] 264 - core 144 r2525 40bb568 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'out.mp4': Metadata: encoder : Lavf56.19.100 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj420p(pc), 640x360, q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.21.102 libx264 Stream mapping: Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Press [q] to stop, [?] for help [swscaler @ 0000000004ca5f80] deprecated pixel format used, make sure you did set range correctly Last message repeated 1 times [swscaler @ 0000000004ca5f80] Warning: data is not aligned! This can lead to a speedloss [swscaler @ 0000000004ca5f80] deprecated pixel format used, make sure you did set range correctly Last message repeated 55 times [swscaler @ 0000000009502c80] deprecated pixel format used, make sure you did set range correctly Last message repeated 41 times [output stream 0:0 @ 00000000002cb160] 100 buffers queued in output stream 0:0, something may be wrong. [swscaler @ 0000000009502c80] deprecated pixel format used, make sure you did set range correctly Last message repeated 49 times [swscaler @ 0000000007cc2780] deprecated pixel format used, make sure you did set range correctly Last message repeated 1 times frame= 150 fps=107 q=-1.0 Lsize= 122kB time=00:00:05.92 bitrate= 168.6kbits/s video:119kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.158680% [libx264 @ 0000000004cf00a0] frame I:1 Avg QP:18.48 size: 13916 [libx264 @ 0000000004cf00a0] frame P:38 Avg QP:18.97 size: 1965 [libx264 @ 0000000004cf00a0] frame B:111 Avg QP:23.90 size: 296 [libx264 @ 0000000004cf00a0] consecutive B-frames: 1.3% 0.0% 0.0% 98.7% [libx264 @ 0000000004cf00a0] mb I I16..4: 13.4% 64.7% 22.0% [libx264 @ 0000000004cf00a0] mb P I16..4: 0.6% 1.6% 0.2% P16..4: 37.9% 10.8% 5.9% 0.0% 0.0% skip:43.1% [libx264 @ 0000000004cf00a0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 33.5% 0.3% 0.0% direct: 0.1% skip:66.0% L0:47.5% L1:51.4% BI: 1.2% [libx264 @ 0000000004cf00a0] 8x8 transform intra:65.9% inter:74.8% [libx264 @ 0000000004cf00a0] coded y,uvDC,uvAC intra: 50.9% 30.8% 5.7% inter: 2.8% 1.3% 0.0% [libx264 @ 0000000004cf00a0] i16 v,h,dc,p: 16% 37% 6% 42% [libx264 @ 0000000004cf00a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 24% 29% 2% 3% 3% 4% 3% 4% [libx264 @ 0000000004cf00a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 24% 15% 5% 7% 6% 6% 4% 4% [libx264 @ 0000000004cf00a0] i8c dc,h,v,p: 62% 21% 16% 2% [libx264 @ 0000000004cf00a0] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 0000000004cf00a0] ref P L0: 67.5% 6.2% 16.7% 9.6% [libx264 @ 0000000004cf00a0] ref B L0: 91.5% 6.8% 1.7% [libx264 @ 0000000004cf00a0] ref B L1: 95.3% 4.7% [libx264 @ 0000000004cf00a0] kb/s:161.96 }}} When `x` is not set, there is no shakiness (see correct output). Also mentioned here: * http://superuser.com/questions/873939/ffmpeg-how-to-zoomin-a-video-from- the-center?noredirect=1 * http://superuser.com/questions/776452/ffmpeg-create-zoompan-shaky-or- jittery -- Ticket URL: <https://trac.ffmpeg.org/ticket/4298> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 20

#4907(avcodec:new): Support decoding animated WebP images
by FFmpeg 01 Apr '25

01 Apr '25

#4907: Support decoding animated WebP images ---------------------------------+--------------------------------------- Reporter: urvang | Type: enhancement Status: new | Priority: normal Component: avcodec | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+--------------------------------------- Summary of the bug: Currently, FFmpeg can encode animated WebPs, but cannot decode them, which is inconvenient for users. Decoding animated WebPs right now generates "image data not found error" due to "unsupported chunk": https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/webp.c#L1504 How to reproduce: (example input image: https://www.gstatic.com/webp/animated/1.webp) {{{ % ffmpeg -i 1.webp 1.gif ffmpeg version N-75787-g1d4af04 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04) configuration: --enable-libwebp libavutil 55. 2.100 / 55. 2.100 libavcodec 57. 4.100 / 57. 4.100 libavformat 57. 3.100 / 57. 3.100 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 10.100 / 6. 10.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.100 / 2. 0.100 [webp @ 0x3782940] image data not found [webp_pipe @ 0x3781360] decoding for stream 0 failed < Rest of the output truncated > }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4907> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 43

#5482(undetermined:new): g721 (g726): fix audiable artefacts
by FFmpeg 30 Mar '25

30 Mar '25

#5482: g721 (g726): fix audiable artefacts -------------------------------------+------------------------------------- Reporter: ami_stuff | Owner: Type: defect | Status: new Priority: normal | Component: Version: | undetermined unspecified | Keywords: Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 -------------------------------------+------------------------------------- decodes ok with sox https://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket1955/g721_1ch_44khz.au also reproducible with g726 sample: https://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket1955/g726_44khz_2bit.au {{{ C:\>ffmpeg -i C:\g721_1ch_44khz.au out.wav ffmpeg version N-79632-g3ce1988 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.5.0 (GCC) 20100414 (Fedora MinGW 4.5.0-1.fc14) configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch= x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686 -pc-min gw32-gcc' --enable-pthreads --enable-memalign-hack --enable-runtime- cpudetect -- enable-cross-compile --enable-static --disable-shared --extra- libs='-lws2_32 -lw inmm -lpthread' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snapsh ots/build/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/sna pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable- version3 -- enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-li bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-li bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx --disab le-decoder=libvpx libavutil 55. 22.101 / 55. 22.101 libavcodec 57. 38.100 / 57. 38.100 libavformat 57. 34.103 / 57. 34.103 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 44.100 / 6. 44.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Input #0, au, from 'C:\g721_1ch_44khz.au': Duration: 00:00:30.01, start: 0.000000, bitrate: 176 kb/s Stream #0:0: Audio: adpcm_g726le ([23][0][0][0] / 0x0017), 44100 Hz, mono, s 16, 176 kb/s [wav @ 0x2c3eb60] Using AVStream.codec to pass codec parameters to muxers is dep recated, use AVStream.codecpar instead. Output #0, wav, to 'out.wav': Metadata: ISFT : Lavf57.34.103 Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s Metadata: encoder : Lavc57.38.100 pcm_s16le Stream mapping: Stream #0:0 -> #0:0 (adpcm_g726le (g726le) -> pcm_s16le (native)) Press [q] to stop, [?] for help size= 2585kB time=00:00:30.01 bitrate= 705.6kbits/s speed= 213x video:0kB audio:2585kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002946% }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5482> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 4

#6389(avformat:new): Support H.265 over Adobe HTTP-FLV or RTMP
by FFmpeg 17 Mar '25

17 Mar '25

#6389: Support H.265 over Adobe HTTP-FLV or RTMP ----------------------------------+--------------------------------------- Reporter: winlin | Type: task Status: new | Priority: normal Component: avformat | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- FFMPEG is a great project, thank everyone's awesome work! Adobe HTTP-FLV or RTMP is the defacto protocol for live streaming over internet and almost all encoders support pushing stream to server or CDN over RTMP protocol, while player like Adobe Flash or Android ExoPlayer or FFMPEG also support HTTP-FLV. Although H.265 is supported by HLS and TS, we can also delivery H.265 over HTTP-TS for realtime live streaming service, but CDNs are more friendly to RTMP/HTTP-FLV. For example, all, that's all, not some, all live streaming service in China now are using RTMP/HTTP-FLV for 3-5s latency, none of them chooses HLS for its large latency. Maybe realtime live streaming is not popular in the US, but I think it's only because the CDN is not very good at delivery RTMP/HTTP-FLV. I know some friends in the UK and US are now build the realtime CDN themselves, some use [NGINX-RTMP](https://github.com/arut/nginx-rtmp-module) like facebook, others using [SRS](https://github.com/ossrs/srs) to delivery realtime live streaming: {{{ Encoder ====RTMP====> SRS(Cluster) ====RTMP/HTTP-FLV====> Player }}} Now, it work very good for H.264+AAC over RTMP/HTTP-FLV for 3-5s realtime live streaming service, what about H.265? Is there any plan to support H.265 over HTTP-FLV/RTMP? -- Ticket URL: <https://trac.ffmpeg.org/ticket/6389> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 34

#4364(avcodec:new): Support for DMG (RAW)
by FFmpeg 26 Feb '25

26 Feb '25

#4364: Support for DMG (RAW) -------------------------------------+------------------------------------- Reporter: ubitux | Owner: Type: | Status: new enhancement | Component: avcodec Priority: wish | Keywords: dmg raw Version: git- | tiff master | Blocking: Blocked By: | Analyzed by developer: 0 Reproduced by developer: 0 | -------------------------------------+------------------------------------- Currently only detects the preview: {{{ ☭ ./ffprobe /tmp/L1004220.DNG ffprobe version N-70643-gb7cb8b3 Copyright (c) 2007-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) 20150304 (prerelease) configuration: --prefix=/home/ux/local --enable-gpl --enable-nonfree --enable-libx264 --enable-libfaac --enable-libvorbis --enable- libfontconfig --enable-libfreetype --enable-libass --enable-libmp3lame --samples=/home/ux/fate-samples --assert-level=2 libavutil 54. 20.100 / 54. 20.100 libavcodec 56. 26.100 / 56. 26.100 libavformat 56. 25.101 / 56. 25.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 12.100 / 5. 12.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [tiff_pipe @ 0x2c39c60] Stream #0: not enough frames to estimate rate; consider increasing probesize Input #0, tiff_pipe, from '/tmp/L1004220.DNG': Duration: N/A, bitrate: N/A Stream #0:0: Video: tiff, rgb24, 320x216 [SAR 1:1 DAR 40:27], 25 tbr, 25 tbn, 25 tbc }}} Overview: https://en.wikipedia.org/wiki/Digital_Negative Sample: http://kenrockwell.com/leica/m9/sample-photos-3.htm -- Ticket URL: <https://trac.ffmpeg.org/ticket/4364> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 22

#3705(ffplay:new): FFPlay cannot seek H264 file
by FFmpeg 24 Feb '25

24 Feb '25

#3705: FFPlay cannot seek H264 file -------------------------------------+------------------------------------- Reporter: | Type: defect Aleksoid1978 | Priority: normal Status: new | Version: Component: ffplay | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Sample: http://aleksoid.voserver.net/Sample/H264/no_recovery_ffmpeg.m2ts Ticket #3652 fixed(decoding is good), but seek is not working How to reproduce: {{{ % ffplay.exe no_recovery_ffmpeg.m2ts ffplay version N-63843-g6d40849 Copyright (c) 2003-2014 the FFmpeg developers built on Jun 8 2014 22:02:04 with gcc 4.8.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-li bass --enable-libbluray --enable-libcaca --enable-libfreetype --enable- libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable- libmp3lame --enable-libopencore-amrnb -- enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable- librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame - -enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable- libx264 --enable-libx265 --enable- libxavs --enable-libxvid --enable-decklink --enable-zlib libavutil 52. 89.100 / 52. 89.100 libavcodec 55. 66.100 / 55. 66.100 libavformat 55. 42.101 / 55. 42.101 libavdevice 55. 13.101 / 55. 13.101 libavfilter 4. 6.100 / 4. 6.100 libswscale 2. 6.100 / 2. 6.100 libswresample 0. 19.100 / 0. 19.100 libpostproc 52. 3.100 / 52. 3.100 Input #0, mpegts, from 'no_recovery_ffmpeg.m2ts': sq= 0B f=0/0 Duration: 00:01:58.20, start: 4328.545078, bitrate: 13543 kb/s Program 1 Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc [h264 @ 0464ce20] mmco: unref short failure 49KB sq= 0B f=0/0 Last message repeated 1 times [h264 @ 0464c600] mmco: unref short failure 0KB sq= 0B f=0/0 [h264 @ 0464c600] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 0464dc60] reference picture missing during reorder [h264 @ 0464dc60] Missing reference picture, default is 65512 [h264 @ 045677c0] mmco: unref short failure [h264 @ 045677c0] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 0464dc60] reference picture missing during reorder [h264 @ 0464dc60] Missing reference picture, default is 65512 [h264 @ 0464dc60] reference picture missing during reorderB f=0/0 [h264 @ 0464dc60] Missing reference picture, default is 65512 [h264 @ 0464dc60] reference picture missing during reorder [h264 @ 0464dc60] Missing reference picture, default is 65512 [h264 @ 0464ce20] mmco: unref short failure 433KB sq= 0B f=0/0 [h264 @ 0464ce20] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 04566700] mmco: unref short failure [h264 @ 04566700] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 05540a80] Missing reference picture, default is 00B f=0/0 [h264 @ 0464c600] reference picture missing during reorder Last message repeated 1 times [h264 @ 0464c600] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 05540a80] Missing reference picture, default is 0 [h264 @ 0464dc60] mmco: unref short failure [h264 @ 0464c600] reference picture missing during reorder Last message repeated 1 times [h264 @ 0464c600] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 04566d00] reference picture missing during reorder [h264 @ 04566d00] Missing reference picture, default is 65540 [h264 @ 05540a80] Missing reference picture, default is 0 [h264 @ 0464c600] reference picture missing during reorderB f=0/0 Last message repeated 1 times [h264 @ 0464c600] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 04566d00] reference picture missing during reorder [h264 @ 04566d00] Missing reference picture, default is 65540 [h264 @ 05540a80] Missing reference picture, default is 00B f=0/0 [h264 @ 0464c600] reference picture missing during reorder Last message repeated 1 times [h264 @ 0464c600] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 04566d00] reference picture missing during reorder [h264 @ 04566d00] Missing reference picture, default is 65540 [h264 @ 04566d00] reference picture missing during reorder [h264 @ 04566d00] Missing reference picture, default is 65540 [h264 @ 0464c600] mmco: unref short failure 0KB sq= 0B f=0/0 [h264 @ 0464c600] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 0464dc60] mmco: unref short failure [h264 @ 0464dc60] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one [h264 @ 0464c600] mmco: unref short failure 424KB sq= 0B f=0/0 [h264 @ 0464ce20] mmco: unref short failure 29KB sq= 0B f=0/0 [h264 @ 045677c0] reference picture missing during reorder [h264 @ 045677c0] Missing reference picture, default is 65542 [h264 @ 04567fe0] mmco: unref short failure [h264 @ 045677c0] reference picture missing during reorder [h264 @ 045677c0] Missing reference picture, default is 65542 [h264 @ 045677c0] reference picture missing during reorder [h264 @ 045677c0] Missing reference picture, default is 65542 [h264 @ 045677c0] reference picture missing during reorderB f=0/0 [h264 @ 045677c0] Missing reference picture, default is 65542 }}} After pressing RIGHT/LEFT key - picture freezes. -- Ticket URL: <https://trac.ffmpeg.org/ticket/3705> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 17

#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