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

#10962(undetermined:new): Unable to create transparent avif with libsvtav1
by FFmpeg 15 Apr '24

15 Apr '24

#10962: Unable to create transparent avif with libsvtav1 --------------------------------------+---------------------------------- Reporter: Jozef Chutka | Type: defect Status: new | Priority: normal Component: undetermined | Version: 6.1.1 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------------+---------------------------------- Summary of the bug: I am trying to produce transparent .avif using svt-av1, but the process fails with "Second stream for AVIF (alpha) output must have exactly one plane" which seems to be ffmpeg message. Interestingly the very same command works ok with aom-av1: How to reproduce: {{{ ffmpeg -i colorkey.webp -filter_complex "[0]split[v][v1];[v1]alphaextract[v1]" -map "[v]" -map "[v1]" -f avif -vcodec libaom-av1 -y out.avif ffmpeg -i colorkey.webp -filter_complex "[0]split[v][v1];[v1]alphaextract[v1]" -map "[v]" -map "[v1]" -f avif -vcodec libsvtav1 -y out.avif }}} The first command works ok, the second one with libsvtav1 fails with: {{{ ffmpeg version 6.1.1 Copyright (c) 2000-2023 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.1.0.2.5) configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.1.1_4 --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-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --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-libopenvino --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon libavutil 58. 29.100 / 58. 29.100 libavcodec 60. 31.102 / 60. 31.102 libavformat 60. 16.100 / 60. 16.100 libavdevice 60. 3.100 / 60. 3.100 libavfilter 9. 12.100 / 9. 12.100 libswscale 7. 5.100 / 7. 5.100 libswresample 4. 12.100 / 4. 12.100 libpostproc 57. 3.100 / 57. 3.100 Input #0, webp_pipe, from 'colorkey.webp': Duration: N/A, bitrate: N/A Stream #0:0: Video: webp, yuva420p(tv, bt470bg/unknown/unknown), 128x128, 25 fps, 25 tbr, 25 tbn Stream mapping: Stream #0:0 (webp) -> split:default split -> Stream #0:0 (libsvtav1) alphaextract:default -> Stream #0:1 (libsvtav1) Press [q] to stop, [?] for help Svt[info]: ------------------------------------------- Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v1.8.0 Svt[info]: SVT [build] : Apple LLVM 15.0.0 (clang-1500.1.0.2.5) 64 bit Svt[info]: LIB Build date: Dec 14 2023 12:33:03 Svt[info]: ------------------------------------------- Svt[info]: Number of logical cores available: 8 Svt[info]: Number of PPCS 107 Svt[info]: [asm level on system : up to neon] Svt[info]: [asm level selected : up to neon] Svt[info]: ------------------------------------------- Svt[info]: SVT [config]: main profile tier (auto) level (auto) Svt[info]: SVT [config]: width / height / fps numerator / fps denominator : 128 / 128 / 25 / 1 Svt[info]: SVT [config]: bit-depth / color format : 8 / YUV420 Svt[info]: SVT [config]: preset / tune / pred struct : 10 / PSNR / random access Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type : 161 / 32 / key frame Svt[info]: SVT [config]: BRC mode / rate factor : CRF / 35 Svt[info]: ------------------------------------------- Svt[info]: ------------------------------------------- Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v1.8.0 Svt[info]: SVT [build] : Apple LLVM 15.0.0 (clang-1500.1.0.2.5) 64 bit Svt[info]: LIB Build date: Dec 14 2023 12:33:03 Svt[info]: ------------------------------------------- Svt[info]: Number of logical cores available: 8 Svt[info]: Number of PPCS 107 Svt[info]: [asm level on system : up to neon] Svt[info]: [asm level selected : up to neon] Svt[info]: ------------------------------------------- Svt[info]: SVT [config]: main profile tier (auto) level (auto) Svt[info]: SVT [config]: width / height / fps numerator / fps denominator : 128 / 128 / 25 / 1 Svt[info]: SVT [config]: bit-depth / color format : 8 / YUV420 Svt[info]: SVT [config]: preset / tune / pred struct : 10 / PSNR / random access Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type : 161 / 32 / key frame Svt[info]: SVT [config]: BRC mode / rate factor : CRF / 35 Svt[info]: ------------------------------------------- [avif @ 0x15af35010] Second stream for AVIF (alpha) output must have exactly one plane [out#0/avif @ 0x15af34f50] Could not write header (incorrect codec parameters ?): Invalid argument Error while filtering: Invalid argument }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/10962> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10954(ffmpeg:new): ffmpeg should not round the frame rate from 23.976 fps to 23.98 fps
by FFmpeg 13 Apr '24

13 Apr '24

#10954: ffmpeg should not round the frame rate from 23.976 fps to 23.98 fps -------------------------------------+------------------------------------- Reporter: milahu | Type: defect Status: new | Priority: minor Component: ffmpeg | Version: 6.1.1 Keywords: framerate | Blocked By: rounding formatting | Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- when i process a video with 23.976 fps then ffmpeg shows the frame rate 23.98 fps {{{ ffmpeg -f lavfi -i color=rate=23.976 -t 0.1 test.mp4 ffmpeg -i test.mp4 2>&1 | grep "Stream #0:0" }}} {{{ Stream #0:0: Video: ..., 23.98 fps, 23.98 tbr, ... }}} ... which is wrong ffmpeg should not round the frame rate to %.2f same problem with ffprobe, ffplay, ... if rounding of the frame rate is necessary then ffmpeg should round the frame rate to at least %.3f to preserve 23.976 fps the mpv video player shows the correct frame rate 23.976fps {{{ $ mpv test.mp4 2>&1 | grep Video (+) Video --vid=1 (*) (h264 1280x720 23.976fps) }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/10954> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10960(avfilter:new): There is a memory leak defect at line 167 in the file /FFmpeg/libavfilter/af_channelsplit.c.
by FFmpeg 12 Apr '24

12 Apr '24

#10960: There is a memory leak defect at line 167 in the file /FFmpeg/libavfilter/af_channelsplit.c. -------------------------------------+------------------------------------- Reporter: | Type: defect lumingyindetect | Status: new | Priority: normal Component: avfilter | Version: git- | master Keywords: memleak | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- There is a memory leak defect at line 167 in the file /FFmpeg/libavfilter/af_channelsplit.c. The specific triggering steps of the defect are as follows, with each step accompanied by text and image explanations. 1.At line 160 in the file /FFmpeg/libavfilter/af_channelsplit.c, a pointer variable named buf_out is defined, and a dynamic memory area is allocated through the function av_frame_clone, as shown in the following image: https://github.com/LuMingYinDetect/FFmpeg_defects/blob/main/FFmpeg_1.png 2.The function of the av_frame_clone function is to allocate a dynamic memory area and return it. Specifically, at line 595 of the av_frame_clone function, a pointer variable named ret is defined, and a dynamic memory area is allocated through the function av_frame_alloc. This pointer is returned at line 603, as shown in the following image: https://github.com/LuMingYinDetect/FFmpeg_defects/blob/main/FFmpeg_2.png 3.After the completion of av_frame_clone, when the if statement at line 161 returns false, it indicates that the dynamic memory area pointed to by buf_out is successfully allocated. However, when the if statement at line 166 returns true, the program will return at line 167. During this process, the dynamic memory area pointed to by the pointer buf_out is neither used like at line 169 nor released, thus constituting a memory leak, as shown in the following image: https://github.com/LuMingYinDetect/FFmpeg_defects/blob/main/FFmpeg_3.png -- Ticket URL: <https://trac.ffmpeg.org/ticket/10960> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#4209(undetermined:new): GPS coordinates location and other iOS metadata in MOV are not copied to output MP4
by FFmpeg 10 Apr '24

10 Apr '24

#4209: GPS coordinates location and other iOS metadata in MOV are not copied to output MP4 -------------------------------------+------------------------------------- Reporter: elmimmo | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Certain metadata in MOV files recorded with iOS devices, such as GPS location, is lost when converting to MP4. **ffmpeg** does state in its log that the output file will contain such metadata, but such is not the case as identified with **ffprobe** and **exiftool**. Some of the metadata present in the input MOV that is missing in the output MP4, according to **ffprobe**: - make ("Apple") - encoder - location (GPS latitude/longitude/altitude coordinates) - model (the iPhone/iPad/iPod model) **exiftool** identifies some more: - camera identifier ("Back" or "Front") - Software Version (iOS version) This happens irrespective of input video/audio being transcoded or just repackaged. How to reproduce: {{{ % ffmpeg -i INPUT.mov -map_metadata 0 -c copy OUTPUT.mp4 ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 26 2014 21:55:58 with Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- libx264 --enable-libmp3lame --enable-libxvid --enable-libvo-aacenc --enable-vda libavutil 54. 15.100 / 54. 15.100 libavcodec 56. 13.100 / 56. 13.100 libavformat 56. 15.102 / 56. 15.102 libavdevice 56. 3.100 / 56. 3.100 libavfilter 5. 2.103 / 5. 2.103 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'INPUT.mov': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2014-12-26 20:54:22 model : iPhone 4 model-spa : iPhone 4 encoder : 7.1.1 encoder-spa : 7.1.1 date : 2014-12-26T21:54:22+0100 date-spa : 2014-12-26T21:54:22+0100 location : +41.4082+002.1852+027.119/ location-spa : +41.4082+002.1852+027.119/ make : Apple make-spa : Apple Duration: 00:00:01.07, start: 0.000000, bitrate: 11694 kb/s Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 11890 kb/s, 24 fps, 24 tbr, 600 tbn, 1200 tbc (default) Metadata: rotate : 90 creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler encoder : H.264 Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default) Metadata: creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler Output #0, mp4, to 'OUTPUT.mp4': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2014-12-26 20:54:22 model : iPhone 4 model-spa : iPhone 4 make-spa : Apple encoder : Lavf56.15.102 date : 2014-12-26T21:54:22+0100 date-spa : 2014-12-26T21:54:22+0100 location : +41.4082+002.1852+027.119/ location-spa : +41.4082+002.1852+027.119/ make : Apple Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 11890 kb/s, 24 fps, 19200 tbn, 600 tbc (default) Metadata: rotate : 90 creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler encoder : H.264 Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, 62 kb/s (default) Metadata: creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 25 fps=0.0 q=-1.0 Lsize= 1522kB time=00:00:01.06 bitrate=11673.4kbits/s video:1512kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.123020% }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4209> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10957(undetermined:new): ffmpeg flac seek demux failure
by FFmpeg 10 Apr '24

10 Apr '24

#10957: ffmpeg flac seek demux failure -------------------------------------+------------------------------------- Reporter: Peter Z | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Demux seeking in some flac files created by ffmpeg fails. Demux and decode without seeking (just skip the -ss in the repro) in the same file succeeds and produces good results so it appears the file itself is fine. Official flac tool has no complaints about the original file either. Example file was cut from the end of the original file that I unfortunately can not share. Tested on master as of 2024-04-08 (b0ef9e35e80990b0ba03dd724a6d41cccba100b1). How to reproduce: {{{ % ./ffmpeg -v trace -ss 0.1 -i seek_not_working.flac -f null = ffmpeg version N-114734-gb0ef9e35e8 Copyright (c) 2000-2024 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.3.9.4) configuration: --enable-static --enable-ffmpeg --enable-ffprobe --disable-shared --enable-gpl --enable-gray --enable-nonfree --enable- iconv --enable-libxml2 --enable-libmp3lame --enable-libfdk-aac --enable- libvorbis --enable-libopus --enable-libtheora --enable-libvpx --enable- libx264 --enable-libx265 --disable-stripping --enable-libfreetype --enable-libsoxr --extra-cflags=-I/opt/homebrew/include --extra- ldflags='-L/opt/homebrew/lib -Wl,-ld_classic' libavutil 59. 13.100 / 59. 13.100 libavcodec 61. 5.101 / 61. 5.101 libavformat 61. 3.100 / 61. 3.100 libavdevice 61. 2.100 / 61. 2.100 libavfilter 10. 2.101 / 10. 2.101 libswscale 8. 2.100 / 8. 2.100 libswresample 5. 2.100 / 5. 2.100 libpostproc 58. 2.100 / 58. 2.100 Splitting the commandline. Reading option '-v' ... matched as option 'v' (set logging level) with argument 'trace'. Reading option '-ss' ... matched as option 'ss' (start transcoding at specified time) with argument '0.1'. Reading option '-i' ... matched as input url with argument 'seek_not_working.flac'. Reading option '-f' ... matched as option 'f' (force container format (auto-detected otherwise)) with argument 'null'. Reading option '=' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option v (set logging level) with argument trace. Successfully parsed a group of options. Parsing a group of options: input url seek_not_working.flac. Applying option ss (start transcoding at specified time) with argument 0.1. Successfully parsed a group of options. Opening an input file: seek_not_working.flac. [AVFormatContext @ 0x137504680] Opening 'seek_not_working.flac' for reading [file @ 0x600000438280] Setting default whitelist 'file,crypto,data' Probing flac score:100 size:2048 [flac @ 0x137504680] Format flac probed with size=2048 and score=100 [flac @ 0x137504680] Before avformat_find_stream_info() pos: 8288 bytes read:32768 seeks:0 nb_streams:1 [flac @ 0x137504680] All info found [flac @ 0x137504680] stream 0: start_time: 109.923265 duration: 112 [flac @ 0x137504680] format: start_time: 109.923265 duration: 112 (estimate from stream) bitrate=6 kb/s [flac @ 0x137504680] After avformat_find_stream_info() pos: 59392 bytes read:65536 seeks:0 frames:1 [flac @ 0x137504680] read_seek: 0 4852026 [flac @ 0x137504680] gen_seek: 0 4852026 [NULL @ 0x137504d90] Junk frame till offset 684 Input #0, flac, from 'seek_not_working.flac': Metadata: encoder : Lavf55.33.100 Duration: 00:01:52.00, start: 109.923265, bitrate: 6 kb/s Stream #0:0, 1, 1/44100: Audio: flac, 44100 Hz, stereo, s32 (24 bit) Successfully opened the file. Parsing a group of options: output url =. Applying option f (force container format (auto-detected otherwise)) with argument null. Successfully parsed a group of options. Opening an output file: =. [out#0/null @ 0x600001f20000] No explicit maps, mapping streams automatically... [aost#0:0/pcm_s16le @ 0x137505ee0] Created audio stream from input stream 0:0 detected 10 logical cores Successfully opened the file. Stream mapping: Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native)) [aost#0:0/pcm_s16le @ 0x137505ee0] Starting thread... [af#0:0 @ 0x600001820000] Starting thread... [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Starting thread... [in#0/flac @ 0x600001624200] Starting thread... Press [q] to stop, [?] for help [in#0/flac @ 0x600001624200] EOF while reading input [in#0/flac @ 0x600001624200] Terminating thread with return code 0 (success) [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Decoder thread received EOF packet [flac @ 0x137105a10] invalid residual [flac @ 0x137105a10] decode_frame() failed [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Decoding error: Invalid data found when processing input [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Decoder returned EOF, finishing [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Decode error rate 1 exceeds maximum 0.666667 [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Task finished with error code: -1145393733 (Error number -1145393733 occurred) [aist#0:0/flac @ 0x137505620] [dec:flac @ 0x137104d00] Terminating thread with return code -1145393733 (Error number -1145393733 occurred) [graph_0_in_0:0 @ 0x600001d20160] Setting 'time_base' to value '1/44100' [graph_0_in_0:0 @ 0x600001d20160] Setting 'sample_rate' to value '44100' [graph_0_in_0:0 @ 0x600001d20160] Setting 'sample_fmt' to value 's32' [graph_0_in_0:0 @ 0x600001d20160] Setting 'channel_layout' to value 'stereo' [graph_0_in_0:0 @ 0x600001d20160] tb:1/44100 samplefmt:s32 samplerate:44100 chlayout:stereo [format_out_0_0 @ 0x600001d20370] Setting 'sample_fmts' to value 's16' [format_out_0_0 @ 0x600001d20370] auto-inserting filter 'auto_aresample_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_0' [AVFilterGraph @ 0x600000138000] query_formats: 5 queried, 6 merged, 7 already done, 0 delayed [auto_aresample_0 @ 0x600001d38000] [SWR @ 0x120008000] Using fltp internally between filters [auto_aresample_0 @ 0x600001d38000] ch:2 chl:stereo fmt:s32 r:44100Hz -> ch:2 chl:stereo fmt:s16 r:44100Hz [out_0_0 @ 0x600001d202c0] EOF on sink link out_0_0:default. [af#0:0 @ 0x600001820000] Filtergraph returned EOF, finishing [af#0:0 @ 0x600001820000] All consumers returned EOF [aost#0:0/pcm_s16le @ 0x137505ee0] No filtered frames for output stream, trying to initialize anyway. Output #0, null, to '=': Metadata: encoder : Lavf61.3.100 Stream #0:0, 0, 1/44100: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Metadata: encoder : Lavc61.5.101 pcm_s16le [out#0/null @ 0x600001f20000] Starting thread... [aost#0:0/pcm_s16le @ 0x137505ee0] Encoder thread received EOF [aost#0:0/pcm_s16le @ 0x137505ee0] Terminating thread with return code 0 (success) [out#0/null @ 0x600001f20000] All streams finished [out#0/null @ 0x600001f20000] Terminating thread with return code 0 (success) [af#0:0 @ 0x600001820000] Terminating thread with return code 0 (success) [out#0/null @ 0x600001f20000] Output file #0 (=): [out#0/null @ 0x600001f20000] Output stream #0:0 (audio): 0 frames encoded (0 samples); 0 packets muxed (0 bytes); [out#0/null @ 0x600001f20000] Total: 0 packets (0 bytes) muxed [out#0/null @ 0x600001f20000] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown [out#0/null @ 0x600001f20000] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used) size=N/A time=N/A bitrate=N/A speed=N/A [in#0/flac @ 0x600001624200] Input file #0 (seek_not_working.flac): [in#0/flac @ 0x600001624200] Input stream #0:0 (audio): 1 packets read (228 bytes); 0 frames decoded; 1 decode errors (0 samples); [in#0/flac @ 0x600001624200] Total: 1 packets (228 bytes) demuxed [AVIOContext @ 0x1375048f0] Statistics: 152340 bytes read, 1 seeks Conversion failed! }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/10957> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10946(ffmpeg:new): Broken pause/resume in ffmpeg version 7.0.0
by FFmpeg 10 Apr '24

10 Apr '24

#10946: Broken pause/resume in ffmpeg version 7.0.0 -------------------------------------+------------------------------------- Reporter: ddhschmidt | Type: defect Status: new | Priority: minor Component: ffmpeg | Version: git- Keywords: ffmpeg | master command pause | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- After updating to the latest release (7.0.0) I noticed I could still "pause" the ffmpeg tool by clicking into the command line window or hitting "break" on the keyboard while focusing the command line window. The output indeed stops and no encoding takes place. The cpu usage doesn't go down though. Task Manager shows ffmpeg.exe is still using as much cycles as if the encoding hadn't stopped at all. I am on Windows (x64) and test with the builds from Gyan (https://www.gyan.dev/ffmpeg/builds/) The earliest master build available on that page was from 2024-02-15 and it exhibits the same problem. Going back to the previous release build (6.1.1) enables me to correctly pause the encoding process again and ffmpeg.exe doesn't consume any cpu cycles anymore. -- Ticket URL: <https://trac.ffmpeg.org/ticket/10946> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10942(undetermined:new): Transcoding to mp2 within an mp4 container will be recognized as mp3
by FFmpeg 09 Apr '24

09 Apr '24

#10942: Transcoding to mp2 within an mp4 container will be recognized as mp3 -------------------------------------+------------------------------------- Reporter: Olaf Ahrens | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: mp4 mp2 | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: When transcoding to an mp4 container with mp2 audio codec, the audio codec is marked non-conclusively. This results in ffmpeg incorrectly recognizing the audio codec in the transcoded video as mp3, while other programs recognize it as the intended mp2: **ffmpeg** {{{ ffmpeg -i TargetAsMp4.mp4 results in [...]Stream #0:1[...]Audio: mp3 (mp3float) (mp4a / 0x6134706D)[...] }}} **MediaInfo** * Format ''MPEG audio'' * Format version ''Version 1'' * Format profile ''Layer 2'' * Codec ID ''mp4a-6b'' **VLC Media Player** * Codec ''MPEG Audio layer 1/2 (mpga)'' However, if another container format is used, for example mkv, the audio codec will be recognized correctly by all programs: **ffmpeg** {{{ ffmpeg -i TargetAsMkv.mkv results in [...]Stream #0:1[...]Audio: mp2[...] }}} **MediaInfo** * Format ''MPEG audio'' * Format version ''Version 1'' * Format profile ''layer 2'' * Codec ID ''A_MPEG/L2'' * Codec ID/hint ''MP2'' **VLC Media Player** * Codec ''MPEG Audio layer 1/2 (mpga)'' What is noticeable is the audio codec ID 0x6134706D shown within the mp4 container, which as far as I know is associated with the aac codec, but not with mp2 or mp3. How to reproduce: {{{ % ffmpeg -i Source.mp4 -c:v h264 -c:a mp2 TargetAsMp4.mp4 ffmpeg version 2024-03-28-git-5d71f97e0e-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers built with gcc 13.2.0 (Rev5, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --pkg- config=pkgconf --disable-w32threads --disable-autodetect --enable- fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable- librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable- libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable- libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable- libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --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-libopencore-amrnb --enable-libopus --enable- libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable- libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint libavutil 59. 10.100 / 59. 10.100 libavcodec 61. 4.100 / 61. 4.100 libavformat 61. 2.100 / 61. 2.100 libavdevice 61. 2.100 / 61. 2.100 libavfilter 10. 2.100 / 10. 2.100 libswscale 8. 2.100 / 8. 2.100 libswresample 5. 2.100 / 5. 2.100 libpostproc 58. 2.100 / 58. 2.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Source.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 2024-03-30T09:24:24.000000Z encoder : Lavf60.23.100 Duration: 00:00:05.75, start: 0.000000, bitrate: 1531 kb/s Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 720x406 [SAR 406:405 DAR 16:9], 1373 kb/s, 30 fps, 30 tbr, 15360 tbn (default) Metadata: creation_time : 2024-03-30T09:24:24.000000Z handler_name : VideoHandler vendor_id : [0][0][0][0] encoder : Lavc60.41.100 libx264 Stream #0:1[0x2](eng): Audio: mp3 (mp3float) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 160 kb/s (default) Metadata: creation_time : 2024-03-30T09:24:24.000000Z handler_name : SoundHandler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (mp3 (mp3float) -> mp2 (native)) Press [q] to stop, [?] for help [libx264 @ 000002ae3902bc00] using SAR=406/405 [libx264 @ 000002ae3902bc00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 000002ae3902bc00] profile High, level 3.0, 4:2:0, 8-bit [libx264 @ 000002ae3902bc00] 264 - core 164 r3190 7ed753b - H.264/MPEG-4 AVC codec - Copyleft 2003-2024 - 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=13 lookahead_threads=2 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 'TargetAsMp4.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf61.2.100 Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 720x406 [SAR 406:405 DAR 16:9], q=2-31, 30 fps, 15360 tbn (default) Metadata: creation_time : 2024-03-30T09:24:24.000000Z handler_name : VideoHandler vendor_id : [0][0][0][0] encoder : Lavc61.4.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A Stream #0:1(eng): Audio: mp2 (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 384 kb/s (default) Metadata: creation_time : 2024-03-30T09:24:24.000000Z handler_name : SoundHandler vendor_id : [0][0][0][0] encoder : Lavc61.4.100 mp2 [out#0/mp4 @ 000002ae39007cc0] video:819KiB audio:271KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.608235% frame= 171 fps= 81 q=-1.0 Lsize= 1097KiB time=00:00:05.63 bitrate=1594.7kbits/s speed=2.66x [libx264 @ 000002ae3902bc00] frame I:1 Avg QP:24.65 size: 83042 [libx264 @ 000002ae3902bc00] frame P:43 Avg QP:25.31 size: 14442 [libx264 @ 000002ae3902bc00] frame B:127 Avg QP:30.79 size: 1058 [libx264 @ 000002ae3902bc00] consecutive B-frames: 0.6% 0.0% 3.5% 95.9% [libx264 @ 000002ae3902bc00] mb I I16..4: 0.7% 5.3% 94.0% [libx264 @ 000002ae3902bc00] mb P I16..4: 0.1% 0.4% 0.6% P16..4: 56.6% 17.3% 18.2% 0.0% 0.0% skip: 6.9% [libx264 @ 000002ae3902bc00] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 49.2% 4.7% 1.0% direct: 0.7% skip:44.4% L0:44.2% L1:46.1% BI: 9.7% [libx264 @ 000002ae3902bc00] 8x8 transform intra:14.8% inter:28.0% [libx264 @ 000002ae3902bc00] coded y,uvDC,uvAC intra: 88.1% 96.4% 80.8% inter: 16.1% 12.5% 2.9% [libx264 @ 000002ae3902bc00] i16 v,h,dc,p: 43% 10% 38% 9% [libx264 @ 000002ae3902bc00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 15% 18% 3% 4% 4% 4% 4% 10% [libx264 @ 000002ae3902bc00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 19% 11% 7% 7% 7% 8% 7% 13% [libx264 @ 000002ae3902bc00] i8c dc,h,v,p: 44% 25% 19% 12% [libx264 @ 000002ae3902bc00] Weighted P-Frames: Y:9.3% UV:0.0% [libx264 @ 000002ae3902bc00] ref P L0: 59.9% 19.3% 7.2% 12.6% 1.1% [libx264 @ 000002ae3902bc00] ref B L0: 78.0% 19.7% 2.3% [libx264 @ 000002ae3902bc00] ref B L1: 84.1% 15.9% [libx264 @ 000002ae3902bc00] kb/s:1176.68 ffmpeg version 2024-03-28-git-5d71f97e0e-full_build-www.gyan.dev built for Windows 7 ff OS on which the tests were run: Windows 11 Pro Version 10.0.22631 Build 22631 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/10942> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9541(avcodec:new): WebCodecs API integration
by FFmpeg 09 Apr '24

09 Apr '24

#9541: WebCodecs API integration -------------------------------------+------------------------------------- Reporter: Jozef | Type: Chutka | enhancement Status: new | Priority: normal Component: avcodec | Version: Keywords: vcodec | unspecified acodec | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Hi FFmpeg team, I am using ffmpeg with WebAssembly and it works nicely in a web browser. I would like to request an enhancement, if this is the right place, to integrate ffmpeg and https://developer.mozilla.org/en- US/docs/Web/API/WebCodecs_API via -vcodec -acodec parameters. I can imagine this could improve encoding performance significantly. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9541> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10951(avcodec:new): SEGV bug at libavcodec/hevcdec.c:2947:22 in hevc_frame_end in FFmpeg7.0
by FFmpeg 09 Apr '24

09 Apr '24

#10951: SEGV bug at libavcodec/hevcdec.c:2947:22 in hevc_frame_end in FFmpeg7.0 -------------------------------------+------------------------------------- Reporter: | Type: defect ZengYunxiang | Status: new | Priority: important Component: avcodec | Version: 7.0 Keywords: bugs | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Dear developers, We found the following SEGV bug on FFmpeg(version 7.0) , please confirm. This bug doesn't require harsh parameter conditions to trigger. The poc file(poc23ffmpeg) will be attached to this ticket. How to reproduce: {{{ tar -xvf ffmpeg-7.0.tar.xz cd ffmpeg-7.0 ./configure --cc=afl-clang-fast --cxx=afl-clang-fast++ --disable-shared AFL_USE_ASAN=1 make -j30 ./ffmpeg_g -y -i poc23ffmpeg tmp.mp4 }}} ASAN Log: {{{ AddressSanitizer:DEADLYSIGNAL ================================================================= ==2083295==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x55661ca3e58c bp 0x0ff32d1da6b7 sp 0x7f9968eb7620 T8) ==2083295==The signal is caused by a READ memory access. ==2083295==Hint: address points to the zero page. #0 0x55661ca3e58c in hevc_frame_end /ffmpeg-7.0/libavcodec/hevcdec.c:2947:22 #1 0x55661ca34250 in decode_nal_unit /ffmpeg-7.0/libavcodec/hevcdec.c:3122:23 #2 0x55661ca34250 in decode_nal_units /ffmpeg-7.0/libavcodec/hevcdec.c:3227:15 #3 0x55661ca34250 in hevc_decode_frame /ffmpeg-7.0/libavcodec/hevcdec.c:3376:14 #4 0x55661d3b6761 in frame_worker_thread /ffmpeg-7.0/libavcodec/pthread_frame.c:223:21 #5 0x7f996ef3fac2 (/lib/x86_64-linux-gnu/libc.so.6+0x94ac2) (BuildId: a43bfc8428df6623cd498c9c0caeb91aec9be4f9) #6 0x7f996efd1a3f (/lib/x86_64-linux-gnu/libc.so.6+0x126a3f) (BuildId: a43bfc8428df6623cd498c9c0caeb91aec9be4f9) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /ffmpeg-7.0/libavcodec/hevcdec.c:2947:22 in hevc_frame_end Thread T8 (av:hevc:df7) created by T0 here: #0 0x55661aef856c in __interceptor_pthread_create (/ffmpeg-7.0/ffmpeg_g+0x98c56c) (BuildId: 545ccc2062eaee7e775c86df925c8f1fb97035e3) #1 0x55661ad85de6 in init_thread /ffmpeg-7.0/libavcodec/pthread_frame.c:828:11 ==2083295==ABORTING }}} ffmpeg version: {{{ # ./ffmpeg -version ffmpeg version 7.0 Copyright (c) 2000-2024 the FFmpeg developers built with Ubuntu clang version 14.0.0-1ubuntu1.1 configuration: --cc=afl-clang-fast --cxx=afl-clang-fast++ --disable-shared libavutil 59. 8.100 / 59. 8.100 libavcodec 61. 3.100 / 61. 3.100 libavformat 61. 1.100 / 61. 1.100 libavdevice 61. 1.100 / 61. 1.100 libavfilter 10. 1.100 / 10. 1.100 libswscale 8. 1.100 / 8. 1.100 libswresample 5. 1.100 / 5. 1.100 }}} Credit: {{{ Discovered by Zeng Yunxiang. }}} Thanks for your time! -- Ticket URL: <https://trac.ffmpeg.org/ticket/10951> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#10956(avfilter:new): colorhold alpha change
by FFmpeg 08 Apr '24

08 Apr '24

#10956: colorhold alpha change -------------------------------------+------------------------------------- Reporter: Truong Quoc | Type: Khanh | enhancement Status: new | Priority: wish Component: avfilter | Version: | unspecified Keywords: colorhold | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary: I use colorhold for remove all color except one. And alphaextract for take alpha. But current colorhold only modify bgr, not alpha Wish: need option for change alpha https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/refs/heads/master:/libavfilte… -- Ticket URL: <https://trac.ffmpeg.org/ticket/10956> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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