May 2025 - FFmpeg-trac - lists.ffmpeg.org

#11617(avcodec:new): heap-use-after-free in libavcodec/libaomenc.c found by AddressSanitizer
by FFmpeg 30 May '25

30 May '25

#11617: heap-use-after-free in libavcodec/libaomenc.c found by AddressSanitizer ---------------------------------+-------------------------------------- Reporter: Ayose | Type: defect Status: new | Priority: normal Component: avcodec | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+-------------------------------------- ''AddressSanitizer'' found a `heap-use-after-free` in `libavcodec/libaomenc.c`. The problem is triggered with a command like the following one, but only if FFmpeg is compiled with ASAN (`./configure --toolchain=clang-asan`): {{{ $ ffmpeg -f lavfi -i testsrc -to 1 -c:v libaom-av1 /tmp/0.webm }}} If FFmpeg is executed without ASAN, the previous command does not fail. === Steps to Reproduce This test is done against ab37c7e49ff98a8c32c90e6df49dd11145bc64bb, clang 19, and libaom 3.12: {{{ $ clang --version Debian clang version 19.1.7 (3) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm-19/bin $ pkg-config --modversion aom 3.12.1 $ git log --format='%h %cs' -1 ab37c7e49f 2025-05-30 }}} FFmpeg is built with `--toolchain=clang-asan`: {{{ $ git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg $ cd ffmpeg $ ./configure \ --toolchain=clang-asan \ --enable-debug \ --enable-libaom $ make -j16 }}} Then, a `heap-use-after-free` is detected in `libavcodec/libaomenc.c:1028:28`: {{{ $ ./ffmpeg_g -y -v warning -hide_banner -f lavfi -i testsrc -to 1 -c:v libaom-av1 /tmp/0.webm [libaom-av1 @ 0x519000002380] Neither bitrate nor constrained quality specified, using default CRF of 32 ================================================================= ==19780==ERROR: AddressSanitizer: heap-use-after-free on address 0x509000007818 at pc 0x564397e7f93a bp 0x7f27e79ad430 sp 0x7f27e79ad428 WRITE of size 8 at 0x509000007818 thread T10 (vf#0:0) #0 0x564397e7f939 in aom_init /tmp/ffmpeg/libavcodec/libaomenc.c:1028:28 #1 0x564398f08f62 in avcodec_open2 /tmp/ffmpeg/libavcodec/avcodec.c:336:19 #2 0x564398070117 in enc_open /tmp/ffmpeg/fftools/ffmpeg_enc.c:337:16 #3 0x5643980b7938 in enc_open /tmp/ffmpeg/fftools/ffmpeg_sched.c:1686:11 #4 0x5643980b7938 in send_to_enc /tmp/ffmpeg/fftools/ffmpeg_sched.c:1806:19 #5 0x564398086538 in fg_output_frame /tmp/ffmpeg/fftools/ffmpeg_filter.c:2359:15 #6 0x564398084fba in fg_output_step /tmp/ffmpeg/fftools/ffmpeg_filter.c:2460:11 #7 0x564398084fba in read_frames /tmp/ffmpeg/fftools/ffmpeg_filter.c:2521:23 #8 0x56439807916e in filter_thread /tmp/ffmpeg/fftools/ffmpeg_filter.c:2962:15 #9 0x5643980b85a9 in task_wrapper /tmp/ffmpeg/fftools/ffmpeg_sched.c:2534:11 #10 0x564398013b3a in asan_thread_start(void*) asan_interceptors.cpp.o #11 0x7f27f5743b7a (/lib/x86_64-linux-gnu/libc.so.6+0x92b7a) (BuildId: b46a78e7229ed6fe08549e2bc7ca64155cc5cf1e) #12 0x7f27f57c15ef in clone (/lib/x86_64-linux-gnu/libc.so.6+0x1105ef) (BuildId: b46a78e7229ed6fe08549e2bc7ca64155cc5cf1e) 0x509000007818 is located 24 bytes inside of 40-byte region [0x509000007800,0x509000007828) freed by thread T10 (vf#0:0) here: #0 0x564398015f4a in free (/tmp/ffmpeg/ffmpeg_g+0x734f4a) (BuildId: fc49802141dc7a2a32e6338567bec09a75fe6f79) #1 0x56439996eb44 in av_packet_side_data_free /tmp/ffmpeg/libavcodec/packet.c:751:9 previously allocated by thread T10 (vf#0:0) here: #0 0x564398016ceb in posix_memalign (/tmp/ffmpeg/ffmpeg_g+0x735ceb) (BuildId: fc49802141dc7a2a32e6338567bec09a75fe6f79) #1 0x56439b47a9cb in av_malloc /tmp/ffmpeg/libavutil/mem.c:107:9 #2 0x56439b47a9cb in av_mallocz /tmp/ffmpeg/libavutil/mem.c:258:17 #3 0x564399e2452d in av_cpb_properties_alloc /tmp/ffmpeg/libavcodec/utils.c:956:30 #4 0x564397e7edf4 in aom_init /tmp/ffmpeg/libavcodec/libaomenc.c:992:17 #5 0x564398f08f62 in avcodec_open2 /tmp/ffmpeg/libavcodec/avcodec.c:336:19 Thread T10 (vf#0:0) created by T0 here: #0 0x564397ffb6f5 in pthread_create (/tmp/ffmpeg/ffmpeg_g+0x71a6f5) (BuildId: fc49802141dc7a2a32e6338567bec09a75fe6f79) #1 0x5643980b2738 in task_start /tmp/ffmpeg/fftools/ffmpeg_sched.c:414:11 #2 0x5643980e79f3 in transcode /tmp/ffmpeg/fftools/ffmpeg.c:881:11 #3 0x5643980e79f3 in main /tmp/ffmpeg/fftools/ffmpeg.c:1009:11 #4 0x7f27f56daca7 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca7) (BuildId: b46a78e7229ed6fe08549e2bc7ca64155cc5cf1e) SUMMARY: AddressSanitizer: heap-use-after-free /tmp/ffmpeg/libavcodec/libaomenc.c:1028:28 in aom_init Shadow bytes around the buggy address: 0x509000007580: fa fa fa fa fa fa fa fa 00 00 00 fa fa fa fa fa 0x509000007600: fa fa fa fa fa fa fa fa 00 00 00 fa fa fa fa fa 0x509000007680: fa fa fa fa fa fa fa fa 00 00 00 fa fa fa fa fa 0x509000007700: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x509000007780: 00 00 00 fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x509000007800: fd fd fd[fd]fd fa fa fa fa fa fa fa fa fa fa fa 0x509000007880: fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa fa 0x509000007900: fd fd fd fd fd fa fa fa fa fa fa fa fa fa fa fa 0x509000007980: fa fa fa fa fa fa fa fa 00 00 00 fa fa fa fa fa 0x509000007a00: fa fa fa fa fa fa fa fa 00 00 00 00 00 fa fa fa 0x509000007a80: fa fa fa fa fa fa fa fa 00 00 00 fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==19780==ABORTING }}} === Possible Cause In `libavcodec/libaomenc.c:1028:28`, the code tries to write to memory pointed by `cpb_props`: {{{#!c cpb_props->buffer_size = avctx->rc_buffer_size; }}} `cpb_props` is assigned in line `992`, before calling to `ff_dovi_configure`: {{{#!c cpb_props = ff_encode_add_cpb_side_data(avctx); if (!cpb_props) return AVERROR(ENOMEM); ctx->dovi.logctx = avctx; if ((res = ff_dovi_configure(&ctx->dovi, avctx)) < 0) return res; }}} [https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/ab37c7e49ff98a8c32c90e6df49dd… `ff_encode_add_cpb_side_data`] returns a new array, and its address is stored in `avctx->coded_side_data`. [https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/ab37c7e49ff98a8c32c90e6df49dd… `ff_dovi_configure`] calls to [https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/ab37c7e49ff98a8c32c90e6df49dd… `avcodec_parameters_to_context`], which replaces the memory of `coded_side_data`: {{{#!c int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par) { // ... av_packet_side_data_free(&codec->coded_side_data, &codec->nb_coded_side_data); ret = codec_parameters_copy_side_data(&codec->coded_side_data, &codec->nb_coded_side_data, par->coded_side_data, par->nb_coded_side_data); // ... } }}} With GDB I can see that the memory stored in the `cpb_props` variable is freed by `av_free`: {{{ $ gdb --args ./ffmpeg_g -y -v warning -hide_banner -f lavfi -i testsrc -to 1 -c:v libaom-av1 /tmp/0.webm [...] (gdb) break libavcodec/libaomenc.c:993 (gdb) commands >printf "cpb_props = %p\n", cpb_props >c >end (gdb) break libavcodec/packet.c:751 (gdb) commands >printf "av_free: %p\n", sd[i].data >c >end (gdb) r [...] Thread 18 "vf#0:0" hit Breakpoint 1, aom_init (avctx=0x519000002880, iface=<optimized out>) at libavcodec/libaomenc.c:993 993 if (!cpb_props) cpb_props = 0x509000007800 Thread 18 "vf#0:0" hit Breakpoint 2, av_packet_side_data_free (psd=psd@entry=0x519000002b88, pnb_sd=pnb_sd@entry=0x519000002b90) at libavcodec/packet.c:751 751 av_free(sd[i].data); av_free: 0x509000007800 Thread 18 "vf#0:0" hit Breakpoint 2, av_packet_side_data_free (psd=psd@entry=0x51100000d9e0, pnb_sd=pnb_sd@entry=0x51100000d9e8) at libavcodec/packet.c:751 751 av_free(sd[i].data); av_free: 0x509000007900 ================================================================= ==165799==ERROR: AddressSanitizer: heap-use-after-free on address 0x509000007818 at pc 0x555555b3d998 bp 0x7fffdfe67090 sp 0x7fffdfe67088 [...] }}} === Possible Fix I modified `libavcodec/libaomenc.c` to initialize `cpb_props` ''after'' the call to `ff_dovi_configure`: {{{#!diff diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c index 9a384fcc3..d2c47b43e 100644 --- a/libavcodec/libaomenc.c +++ b/libavcodec/libaomenc.c @@ -989,14 +989,14 @@ static av_cold int aom_init(AVCodecContext *avctx, if (codec_caps & AOM_CODEC_CAP_HIGHBITDEPTH) ctx->rawimg.bit_depth = enccfg.g_bit_depth; - cpb_props = ff_encode_add_cpb_side_data(avctx); - if (!cpb_props) - return AVERROR(ENOMEM); - ctx->dovi.logctx = avctx; if ((res = ff_dovi_configure(&ctx->dovi, avctx)) < 0) return res; + cpb_props = ff_encode_add_cpb_side_data(avctx); + if (!cpb_props) + return AVERROR(ENOMEM); + if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) { const AVBitStreamFilter *filter = av_bsf_get_by_name("extract_extradata"); int ret; }}} With the change, the command works with no issues: {{{ $ ./ffmpeg_g -y -v warning -hide_banner -f lavfi -i testsrc -to 1 -c:v libaom-av1 /tmp/0.webm [libaom-av1 @ 0x519000002380] Neither bitrate nor constrained quality specified, using default CRF of 32 $ ./ffprobe -hide_banner -i /tmp/0.webm Input #0, matroska,webm, from '/tmp/0.webm': Metadata: ENCODER : Lavf62.0.102 Duration: 00:00:01.00, start: 0.000000, bitrate: 33 kb/s Stream #0:0: Video: av1 (libaom-av1) (High), gbrp(pc, gbr/bt709/iec61966-2-1, progressive), 320x240 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 1k tbn Metadata: ENCODER : Lavc62.3.101 libaom-av1 DURATION : 00:00:01.000000000 $ }}} Though I don't know if this change may break something else. -- Ticket URL: <https://trac.ffmpeg.org/ticket/11617> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#11020(ffmpeg:new): Invalid color range error on ffmpeg 7.0
by FFmpeg 30 May '25

30 May '25

#11020: Invalid color range error on ffmpeg 7.0 --------------------------------+------------------------------------- Reporter: Marius | Type: defect Status: new | Priority: important Component: ffmpeg | Version: 7.0 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------+------------------------------------- **Summary of the bug:** I'm trying to transcode a video with h264, but I've also tried h265 having the same output. **How to reproduce:** {{{ ffmpeg -i https://vid.connatix.com/mmid-545c8cbb- f0f5-119b-2687-29df00ef32c7/original.mp4 -c:v libx264 -c:a aac output.mp4 }}} **ffmpeg version:** {{{ any 7.0 build }}} **Platform:** {{{ windows, mac and linux }}} **Output:** {{{ [graph 0 input from stream 0:0 @ 0x6000005fc420] Invalid color range [vf#0:0 @ 0x6000000ff9f0] Error reinitializing filters! [vf#0:0 @ 0x6000000ff9f0] Task finished with error code: -22 (Invalid argument) [vf#0:0 @ 0x6000000ff9f0] Terminating thread with return code -22 (Invalid argument) [vost#0:0/libx264 @ 0x12fe11870] Could not open encoder before EOF [vost#0:0/libx264 @ 0x12fe11870] Task finished with error code: -22 (Invalid argument) [vost#0:0/libx264 @ 0x12fe11870] Terminating thread with return code -22 (Invalid argument) [out#0/mp4 @ 0x6000007fc000] Nothing was written into output file, because at least one of its streams received no packets. }}} I've also tried specifying `-color_primaries 1`, `-color_trc 1` and `-colorspace 1` with no success. This error is not reproducible on any of the mentioned platforms when using ffmpeg version 6.1. -- Ticket URL: <https://trac.ffmpeg.org/ticket/11020> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#11593(ffmpeg:new): New User Question - working with youtube
by FFmpeg 30 May '25

30 May '25

#11593: New User Question - working with youtube ----------------------------------+-------------------------------------- Reporter: Francois | Type: task Status: new | Priority: minor Component: ffmpeg | Version: git-master Keywords: youtube | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Greetings **Background:** I am trying the following command: ffmpeg.exe -i "https://www.youtube.com/watch?v=eLp_GCYlLzw" -c copy -f segment -strftime 1 -segment_time 600 I am getting an error Error opening input: Invalid data found when processing input I then tried just: ffmpeg.exe -i "https://www.youtube.com/watch?v=eLp_GCYlLzw" output.mp4. Same error Output from running the ffmpeg command: ffmpeg version 2025-05-15-git-12b853530a-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers built with gcc 15.1.0 (Rev4, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable- w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable- bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable- libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable- mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable- libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda- llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable- vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable- opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable- libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable- libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable- libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable- libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint libavutil 60. 2.100 / 60. 2.100 libavcodec 62. 3.101 / 62. 3.101 libavformat 62. 0.102 / 62. 0.102 libavdevice 62. 0.100 / 62. 0.100 libavfilter 11. 0.100 / 11. 0.100 libswscale 9. 0.100 / 9. 0.100 libswresample 6. 0.100 / 6. 0.100 [in#0 @ 00000273963b6180] Error opening input: Invalid data found when processing input Error opening input file https://www.youtube.com/watch?v=eLp_GCYlLzw. Error opening input files: Invalid data found when processing input **Question:** What settings am I missing to download / work with YouTube video's -- Ticket URL: <https://trac.ffmpeg.org/ticket/11593> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 6

#11514(avcodec:new): Cuvid decoder problem with deinterlacing
by FFmpeg 29 May '25

29 May '25

#11514: Cuvid decoder problem with deinterlacing ---------------------------------+-------------------------------------- Reporter: ua0lnj | Type: defect Status: new | Priority: normal Component: avcodec | Version: git-master Keywords: cuvid | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+-------------------------------------- Summary of the bug: After commit 99e2af4 https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/99e2af4e7837ca09b97d93a562d… I have frame jerking with vdr-plugin-softhddevice and vdr-plugin- softhdcuvid.(https://github.com/ua0lnj/vdr-plugin-softhddevice, https://github.com/jojo61/vdr-plugin-softhdcuvid) with interlaced video and cuvid deinterlace bob or adaptive. No errors in libavcodec debug log. But ffplay works without problems: DISPLAY=:0 ffplay -x 1920 -y 1080 -vcodec h264_cuvid -deint 2 -drop_second_field 0 -v debug ./00001.ts The only difference i found in the logs: ffplay: [h264_cuvid @ 0x7139edffb2c0] Format nv12 chosen by get_format(). [h264_cuvid @ 0x7139edffb2c0] Formats: Original: nv12 | HW: nv12 | SW: nv12 softhddevice: [h264_cuvid @ 0x7a36343b0900] Format cuda chosen by get_format(). [h264_cuvid @ 0x7a36343b0900] Formats: Original: nv12 | HW: cuda | SW: nv12 How to reproduce: ffmpeg version latest from git, Nvidia driver 570, Ubuntu 24.04. vdr with vdr-plugin-softhddevice, -v cuvid. I know about nvdec and softhddevice supports it too, here we are talking about cuvid. -- Ticket URL: <https://trac.ffmpeg.org/ticket/11514> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 12

#11614(ffmpeg:new): concat demux: video from 2nd file missing in concatenated file
by FFmpeg 28 May '25

28 May '25

#11614: concat demux: video from 2nd file missing in concatenated file ----------------------------------------+---------------------------------- Reporter: bzipitidoo | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: 7.1 Keywords: concat demuxer | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------------+---------------------------------- Tried to concatenate 3 files by concatenating the 1st 2, which was successful, then with a separate invocation, concatenate the 3rd file to the file resulting from concatenating the 1st 2. ffmpeg did not report any errors, yet this produced a bad file. The combination of all 3 files looked to be the correct size. VLC will play it. But in the combined file, the video from the 3rd file did not appear, only the audio. The video files are the same video and audio codecs (mpeg4 and libopus), bit rates (400k video, 24k audio), and dimensions (700x700). I used -c copy. $ ls -s wp* 5468 wp123.mkv 4892 wp12.mkv 576 wp3.mkv $ cat file_list.txt file 'wp12.mkv' file 'wp3.mkv' $ ffmpeg -f concat -i file_list.txt -c copy wp123.mkv ffmpeg version 7.1.1 Copyright (c) 2000-2025 the FFmpeg developers built with gcc 14 (Gentoo 14.2.1_p20241221 p7) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --docdir=/usr/share/doc/ffmpeg-7.1.1-r1/html --ar=x86_64-pc-linux-gnu-ar --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc- linux-gnu-g++ --nm=x86_64-pc-linux-gnu-nm --pkg-config=x86_64-pc-linux- gnu-pkg-config --ranlib=x86_64-pc-linux-gnu-ranlib --disable-stripping --disable-debug --disable-optimizations --optflags=' ' --enable-iconv --enable-pic --enable-shared --disable-static --enable-manpages --disable- podpages --disable-txtpages --disable-decklink --disable-libaribcaption --disable-libdavs2 --disable-libklvanc --disable-liblcevc-dec --disable- libmysofa --disable-libopenvino --disable-libshine --disable-libtls --disable-libuavs3d --disable-libvvenc --disable-libxavs --disable- libxavs2 --disable-libxevd --disable-libxeve --disable-pocketsphinx --disable-rkmpp --disable-vapoursynth --disable-cuda-nvcc --disable- libcelt --disable-libglslang --disable-liblensfun --disable-libmfx --disable-libopencv --disable-librist --disable-libtensorflow --disable- libtorch --disable-mbedtls --disable-mmal --disable-omx --disable-omx-rpi --disable-gcrypt --disable-lzma --enable-libpulse --enable-gpl --disable- ffnvcodec --enable-bzlib --disable-libvpl --disable-opencl --disable- libsrt --enable-libaom --disable-libvpx --disable-libzvbi --disable- libsmbclient --disable-libgsm --disable-libxvid --enable-libvidstab --disable-librav1e --disable-vdpau --disable-libjxl --disable-librabbitmq --disable-libopenh264 --disable-libquirc --disable-libjack --disable- libflite --disable-libsnappy --disable-libtwolame --disable-libsvtav1 --disable-libmp3lame --disable-cuvid --disable-libopenmpt --disable- libplacebo --disable-libfribidi --disable-libfdk-aac --disable-libbs2b --disable-appkit --disable-libspeex --disable-liblc3 --enable-postproc --enable-libxml2 --disable-libshaderc --disable-libzimg --disable-alsa --enable-libfontconfig --enable-libdav1d --disable-libvmaf --disable-sdl2 --disable-nvdec --disable-cuda-llvm --disable-libaribb24 --disable-libnpp --enable-libdrm --disable-libxcb-shm --disable-libkvazaar --enable-gnutls --disable-nvenc --disable-amf --disable-libxcb --disable-libcodec2 --disable-lcms2 --disable-libopencore-amrnb --disable-libtesseract --disable-libvo-amrwbenc --enable-libopus --disable-gmp --enable-vulkan --disable-libdvdread --disable-libopenjpeg --disable-vaapi --disable- libx264 --disable-libx265 --disable-librtmp --enable-libwebp --enable-zlib --disable-libxcb-shape --disable-libsoxr --disable-librubberband --disable-libzmq --disable-htmlpages --disable-libv4l2 --disable-libssh --disable-libtheora --disable-libmodplug --disable-opengl --disable- libdvdnav --enable-libfreetype --disable-openal --disable-librsvg --enable-libass --disable-libgme --disable-chromaprint --disable-ladspa --disable-libiec61883 --disable-libilbc --disable-libcdio --disable-frei0r --disable-sndio --disable-libcaca --disable-libxcb-xfixes --disable- libbluray --disable-libopencore-amrwb --disable-libdc1394 --disable- libqrencode --disable-xlib --disable-openssl --disable-lv2 --disable- libvorbis --enable-libharfbuzz libavutil 59. 39.100 / 59. 39.100 libavcodec 61. 19.101 / 61. 19.101 libavformat 61. 7.100 / 61. 7.100 libavdevice 61. 3.100 / 61. 3.100 libavfilter 10. 4.100 / 10. 4.100 libswscale 8. 3.100 / 8. 3.100 libswresample 5. 3.100 / 5. 3.100 libpostproc 58. 3.100 / 58. 3.100 Input #0, concat, from 'file_list.txt': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: mpeg4 (Simple Profile), yuv420p(tv, progressive), 700x700 [SAR 1:1 DAR 1:1], 30 fps, 30 tbr, 1k tbn Metadata: HANDLER_NAME : VideoHandler VENDOR_ID : [0][0][0][0] ENCODER : Lavc61.19.101 mpeg4 DURATION : 00:00:35.000000000 Stream #0:1: Audio: opus, 48000 Hz, mono, fltp Metadata: HANDLER_NAME : SoundHandler VENDOR_ID : [0][0][0][0] DURATION : 00:00:35.096000000 File 'wp123.mkv' already exists. Overwrite? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Output #0, matroska, to 'wp123.mkv': Metadata: encoder : Lavf61.7.100 Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p(tv, progressive), 700x700 [SAR 1:1 DAR 1:1], q=2-31, 30 fps, 30 tbr, 1k tbn Metadata: HANDLER_NAME : VideoHandler VENDOR_ID : [0][0][0][0] ENCODER : Lavc61.19.101 mpeg4 DURATION : 00:00:35.000000000 Stream #0:1: Audio: opus ([255][255][255][255] / 0xFFFFFFFF), 48000 Hz, mono, fltp Metadata: HANDLER_NAME : SoundHandler VENDOR_ID : [0][0][0][0] DURATION : 00:00:35.096000000 Press [q] to stop, [?] for help [out#0/matroska @ 0x55c99ab92980] video:5307KiB audio:132KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.467071% frame= 1131 fps=0.0 q=-1.0 Lsize= 5464KiB time=00:00:43.31 bitrate=1033.4kbits/s speed=1.94e+03x $ ffprobe wp12.mkv ... Input #0, matroska,webm, from 'wp12.mkv': Metadata: COMPATIBLE_BRANDS: isomiso2mp41 MAJOR_BRAND : isom MINOR_VERSION : 512 ENCODER : Lavf61.7.100 Duration: 00:00:35.10, start: -0.007000, bitrate: 1141 kb/s Stream #0:0: Video: mpeg4 (Simple Profile), yuv420p(tv, progressive), 700x700 [SAR 1:1 DAR 1:1], 30 fps, 30 tbr, 1k tbn (default) Metadata: HANDLER_NAME : VideoHandler VENDOR_ID : [0][0][0][0] ENCODER : Lavc61.19.101 mpeg4 DURATION : 00:00:35.000000000 Stream #0:1: Audio: opus, 48000 Hz, mono, fltp (default) Metadata: HANDLER_NAME : SoundHandler VENDOR_ID : [0][0][0][0] DURATION : 00:00:35.096000000 $ ffprobe wp3.mkv ... Input #0, matroska,webm, from 'wp3.mkv': Metadata: COMPATIBLE_BRANDS: isomiso2mp41 MAJOR_BRAND : isom MINOR_VERSION : 512 ENCODER : Lavf61.7.100 Duration: 00:00:08.30, start: -0.007000, bitrate: 568 kb/s Stream #0:0(eng): Video: mpeg4 (Simple Profile), yuv420p(tv, bt470bg/bt709/bt709, progressive), 700x700 [SAR 1:1 DAR 1:1], 10 fps, 10 tbr, 1k tbn (default) Metadata: HANDLER_NAME : VideoHandler VENDOR_ID : [0][0][0][0] ENCODER : Lavc61.19.101 mpeg4 DURATION : 00:00:08.300000000 Stream #0:1(eng): Audio: opus, 48000 Hz, mono, fltp (default) Metadata: HANDLER_NAME : SoundHandler VENDOR_ID : [0][0][0][0] DURATION : 00:00:08.208000000 $ ffprobe wp123.mkv ... Input #0, matroska,webm, from 'wp123.mkv': Metadata: ENCODER : Lavf61.7.100 Duration: 00:00:43.40, start: 0.000000, bitrate: 1031 kb/s Stream #0:0: Video: mpeg4 (Simple Profile), yuv420p(tv, progressive), 700x700 [SAR 1:1 DAR 1:1], 30 fps, 30 tbr, 1k tbn Metadata: HANDLER_NAME : VideoHandler VENDOR_ID : [0][0][0][0] ENCODER : Lavc61.19.101 mpeg4 DURATION : 00:00:43.403000000 Stream #0:1: Audio: opus, 48000 Hz, mono, fltp Metadata: HANDLER_NAME : SoundHandler VENDOR_ID : [0][0][0][0] DURATION : 00:00:43.324000000 -- Ticket URL: <https://trac.ffmpeg.org/ticket/11614> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#11613(avcodec:new): ffv1_vulkan and level 4 does not work well
by FFmpeg 27 May '25

27 May '25

#11613: ffv1_vulkan and level 4 does not work well ----------------------------------+-------------------------------------- Reporter: Andrew-R | 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: How to reproduce: {{{ bash-5.1$ RADV_PERFTEST=video_decode ~/bin/ffmpeg8-vk -init_hw_device vulkan -hwaccel vulkan -hwaccel_output_format vulkan -i ~/6029.mp4 -an -c:v ffv1_vulkan -level 4 -strict -2 -vframes 1000 frame-ffv1-vulkan.mkv ffmpeg version N-118546-g903b085f91 Copyright (c) 2000-2025 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: --enable-opencl --disable-debug --enable-libx265 --enable-libx264 --enable-gpl --enable-libplacebo --enable-vulkan --enable-libshaderc --enable-libzimg --enable-libaom --enable-libdav1d --enable-libsoxr --enable-libfontconfig --enable-libfreetype --enable- libfribidi --enable-gnutls --enable-libass --enable-libbluray --enable- libcdio --enable-frei0r --enable-libgsm --enable-openal --enable-libopus --enable-librtmp --enable-libsnappy --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable- libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp libavutil 60. 3.100 / 60. 3.100 libavcodec 62. 3.101 / 62. 3.101 libavformat 62. 0.102 / 62. 0.102 libavdevice 62. 0.100 / 62. 0.100 libavfilter 11. 0.100 / 11. 0.100 libswscale 9. 0.100 / 9. 0.100 libswresample 6. 0.100 / 6. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/guest/6029.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42isomavc1 creation_time : 2011-06-24T09:52:37.000000Z encoder : HandBrake 0.9.5 2011043000 Duration: 01:28:31.60, start: 0.000000, bitrate: 789 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709, progressive), 720x400, 657 kb/s, 25 fps, 25 tbr, 90k tbn (default) Metadata: creation_time : 2011-06-24T09:52:37.000000Z vendor_id : [0][0][0][0] encoder : JVT/AVC Coding Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default) Metadata: creation_time : 2011-06-24T09:52:37.000000Z vendor_id : [0][0][0][0] File 'frame-ffv1-vulkan.mkv' already exists. Overwrite? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> ffv1 (ffv1_vulkan)) Press [q] to stop, [?] for help [ffv1_vulkan @ 0xc85f1c0] Async buffers: 0MiB per context, 0MiB total, depth: 1 Output #0, matroska, to 'frame-ffv1-vulkan.mkv': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42isomavc1 encoder : Lavf62.0.102 Stream #0:0(und): Video: ffv1 (FFV1 / 0x31564646), vulkan(tv, smpte170m/smpte170m/bt709, progressive), 720x400, q=2-31, 200 kb/s, 25 fps, 1k tbn (default) Metadata: encoder : Lavc62.3.101 ffv1_vulkan creation_time : 2011-06-24T09:52:37.000000Z vendor_id : [0][0][0][0] [out#0/matroska @ 0xc85d980] video:83357KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.053416% frame= 1000 fps= 44 q=-0.0 Lsize= 83402KiB time=00:00:40.00 bitrate=17080.6kbits/s speed=1.77x elapsed=0:00:22.62 }}} Resulting file is uplayable: {{{ bash-5.1$ mpv frame-ffv1-vulkan.mkv (+) Video --vid=1 (*) (ffv1 720x400 25.000fps) [ffmpeg/video] ffv1: CRC mismatch 1ED3EEA2! Could not open codec. Decoder init failed for ffv1 Failed to initialize a decoder for codec 'ffv1'. Video: no video No video or audio streams selected. Exiting... (Errors when loading file) }}} Note that same problem seem to exist in sw ffv1 encoder. Without -level 4 Vulkan encoder complains: {{{ [ffv1_vulkan @ 0xc8e2b80] Encoding frames with subsampling and unaligned dimensions is only supported in version 4 (-level 4) }}} while sw encoder works fine. -- Ticket URL: <https://trac.ffmpeg.org/ticket/11613> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#11612(avcodec:new): Vulkan HEVC decode 1st frame broken
by FFmpeg 27 May '25

27 May '25

#11612: Vulkan HEVC decode 1st frame broken -------------------------------------+------------------------------------- Reporter: Andrew-R | Type: defect Status: new | Priority: normal Component: avcodec | Version: git- Keywords: vulkan, | master hevc | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: How to reproduce: {{{ Download https://drive.google.com/file/d/1Ic9DZXMSo07EJMqCFaQRKSSrSw6y1mYv/view Run ffmpeg like this: RADV_PERFTEST=video_decode ~/bin/ffmpeg8-vk -hwaccel vulkan -i ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov -vframes 1 frame-vulkan.png ffmpeg version N-118546-g903b085f91 Copyright (c) 2000-2025 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: --enable-opencl --disable-debug --enable-libx265 --enable-libx264 --enable-gpl --enable-libplacebo --enable-vulkan --enable-libshaderc --enable-libzimg --enable-libaom --enable-libdav1d --enable-libsoxr --enable-libfontconfig --enable-libfreetype --enable- libfribidi --enable-gnutls --enable-libass --enable-libbluray --enable- libcdio --enable-frei0r --enable-libgsm --enable-openal --enable-libopus --enable-librtmp --enable-libsnappy --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable- libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp libavutil 60. 3.100 / 60. 3.100 libavcodec 62. 3.101 / 62. 3.101 libavformat 62. 0.102 / 62. 0.102 libavdevice 62. 0.100 / 62. 0.100 libavfilter 11. 0.100 / 11. 0.100 libswscale 9. 0.100 / 9. 0.100 libswresample 6. 0.100 / 6. 0.100 [aist#0:1/pcm_s16le @ 0xba830c0] Guessed Channel Layout: stereo Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/guest/K38_sdcard1/Documents /iPhone11_4K-recorder_59.940HDR10.mov': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2020-12-18T22:20:29.000000Z com.apple.quicktime.creationdate: 2020-12-18T17:20:29-0500 com.apple.quicktime.location.ISO6709: +33.4233-084.5802/ Duration: 00:00:19.16, start: 0.000000, bitrate: 69140 kb/s Stream #0:0[0x1](und): Video: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(pc, bt2020nc/bt2020/smpte2084), 3840x2160, 64166 kb/s, 59.92 fps, 59.94 tbr, 600 tbn (default) Metadata: creation_time : 2020-12-18T22:20:29.000000Z handler_name : Core Media Video vendor_id : [0][0][0][0] encoder : HEVC Stream #0:1[0x2](und): Audio: pcm_s16le (lpcm / 0x6D63706C), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: creation_time : 2020-12-18T22:20:29.000000Z handler_name : Core Media Audio vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (hevc (native) -> png (native)) Press [q] to stop, [?] for help Output #0, image2, to 'frame-vulkan.png': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt com.apple.quicktime.location.ISO6709: +33.4233-084.5802/ com.apple.quicktime.creationdate: 2020-12-18T17:20:29-0500 encoder : Lavf62.0.102 Stream #0:0(und): Video: png, rgb48be(pc, gbr/bt2020/smpte2084, progressive), 3840x2160, q=2-31, 200 kb/s, 59.94 fps, 59.94 tbn (default) Metadata: encoder : Lavc62.3.101 png creation_time : 2020-12-18T22:20:29.000000Z handler_name : Core Media Video vendor_id : [0][0][0][0] [image2 @ 0xba825c0] The specified filename 'frame-vulkan.png' does not contain an image sequence pattern or a pattern is invalid. [image2 @ 0xba825c0] Use a pattern such as %03d for an image sequence or use the -update option (with -frames:v 1 if needed) to write a single image. [out#0/image2 @ 0xba672c0] video:14788KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown frame= 1 fps=0.2 q=-0.0 Lsize=N/A time=00:00:00.01 bitrate=N/A speed=0.00299x elapsed=0:00:05.57 }}} Observe that frame-vulkan.png broken relative to software decoding. Problem also exist in ffmpeg 7.1.1 -- Ticket URL: <https://trac.ffmpeg.org/ticket/11612> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9471(ffmpeg:new): EAC3 native encoder is only gapless in the beginning, not in the end
by FFmpeg 27 May '25

27 May '25

#9471: EAC3 native encoder is only gapless in the beginning, not in the end -------------------------------------+------------------------------------- Reporter: Balling | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git- Keywords: mp4 eac3 | master editlist gapless | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: edts atmos (editlist) has media time and media duration, yet even though media time is correctly written for EAC3 and AAC (native EAC3 encoder has 256 sample of silence (a.k.a. encoder delay) that are then removed from the beginning with native encoder and native AAC has 1024 samples that are also working great) the media duration is not correctly written. Even if it were to be correctly written media duration is not applied on decoding even for AAC, see for example https://bugs.chromium.org/p/chromium/issues/detail?id=668999 that is still present in git-master!!! How to reproduce: {{{ % ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" -c:a eac3 outeac3.mp4 ffmpeg version N-104341-g933765aa0e-20211013 Copyright (c) 2000-2021 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 --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 --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=20211013 libavutil 57. 7.100 / 57. 7.100 libavcodec 59. 12.100 / 59. 12.100 libavformat 59. 6.100 / 59. 6.100 libavdevice 59. 0.101 / 59. 0.101 libavfilter 8. 14.100 / 8. 14.100 libswscale 6. 1.100 / 6. 1.100 libswresample 4. 0.100 / 4. 0.100 libpostproc 56. 0.100 / 56. 0.100 Input #0, lavfi, from 'sine=frequency=1000:duration=5': Duration: N/A, start: 0.000000, bitrate: 705 kb/s Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> eac3 (native)) Press [q] to stop, [?] for help Output #0, mp4, to 'outeac3.mp4': Metadata: encoder : Lavf59.6.100 Stream #0:0: Audio: eac3 (ec-3 / 0x332D6365), 44100 Hz, mono, fltp, 96 kb/s Metadata: encoder : Lavc59.12.100 eac3 size= 60kB time=00:00:05.00 bitrate= 98.2kbits/s speed= 487x video:0kB audio:59kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.166617% }}} {{{ Track duration: 5010 (0x00001392) - 5010 (0x1392) ms Media time: 256 (0x00000100) - 256 (0x100) ms Media rate: 65536 (0x00010000) - 1.000 }}} Now compare it to aac: ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" -c:a aac fileaac.mp4: {{{ Track duration: 5000 (0x00001388) - 5000 (0x1388) ms Media time: 1024 (0x00000400) - 1024 (0x400) Media rate: 65536 (0x00010000) - 1.000 }}} Unfortunately a) Mediainfo tracer is buggy in that part: https://github.com/MediaArea/MediaInfoLib/issues/1441 b) I am not sure that media duration is really buggy since it is not applied anyway! c) I checked it all decoding to wav and checking in Audacity. d) I dunno whether sbgp and sgpd are needed (whether EAC3 depends on previous frames) Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9471> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#3643(undetermined:new): XYZ to RGB color space
by FFmpeg 27 May '25

27 May '25

#3643: XYZ to RGB color space -------------------------------------+------------------------------------- Reporter: tteam | Type: Status: new | enhancement Component: | Priority: normal undetermined | Version: Keywords: more XYZ to | unspecified RGB matrix | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: XYZ to RGB colorspace conversion use only sRGB matrix and sometimes the conversion is deffected in red channel and the picture is dark. Hi all! Is it possible to add more color space matrix (in option) to XYZ to RGB conversion? Because the FFMPEG use only one matrix (sRGB) but lots of available, and best if the user can choose one. Because the problem is: sometimes the conversion is deffected the red is much more and the picture is dark. If possible please add some from this list. The default is the sRGB but optional the others. XYZ to RGB matrices: http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html Thanks -- Ticket URL: <https://trac.ffmpeg.org/ticket/3643> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#11611(avformat:new): VVC in MKV container: IDRs with leading pictures not decoded correctly
by FFmpeg 27 May '25

27 May '25

#11611: VVC in MKV container: IDRs with leading pictures not decoded correctly -------------------------------------+------------------------------------- Reporter: Gabriel | Type: defect Hege | Status: new | Priority: normal Component: avformat | Version: git- | master Keywords: mkv vvc | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: The default behavior for VVenC (since v1.10.0) is to create an IDR with leading pictures for the first picture in decoding order (POC 32). When this VVC bitstream is muxed to an MKV container and the resulting file is decoded, the leading pictures are missing. The problem is that negative PTS are calculated for the leading pictures, so they are discarded. I fixed the same issue for MP4 in libavformat/movenc.c (https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=14519) but I am not really familiar with the MKV format and the code looks quite different so I wasn't able apply the same solution for libavformat/matroskaenc.c. How to reproduce: FFmpeg needs to be built with --enable-libvvenc and a recent libvvenc, e.g. v1.14: {{{ ffmpeg version N-119722-gbf6d3dc339 Copyright (c) 2000-2025 the FFmpeg developers built with gcc 13 (Ubuntu 13.3.0-6ubuntu2~24.04) configuration: --enable-libvvenc --disable-shared --enable-static --enable-gpl --enable-nonfree --enable-version3 --disable-doc --env='PKG_CONFIG_PATH=/home/hege/.local/lib/pkgconfig/' }}} Encode VVC directly into MKV container: {{{ ./ffmpeg -i /data/YUV/foreman_352x288_30Hz_i420_8.y4m -an -preset faster -vcodec vvc test.mp4 }}} -> encodes 300 frames. Decode to YUV (or play back using ffplay): {{{ ./ffmpeg -i test.mp4 test.yuv }}} -> outputs 271 frames. -- Ticket URL: <https://trac.ffmpeg.org/ticket/11611> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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