August 2022 - FFmpeg-trac - lists.ffmpeg.org

Re: [FFmpeg-trac] #3361(avcodec:closed): aac_he mono not recogized (reported as stereo)
by FFmpeg 01 Aug '22

01 Aug '22

#3361: aac_he mono not recogized (reported as stereo) -------------------------------------+------------------------------------- Reporter: Christian | Owner: (none) Ebert | Type: defect | Status: closed Priority: important | Component: avcodec Version: git-master | Resolution: invalid Keywords: aac | Blocked By: regression | Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by Balling): A) is done in https://patchwork.ffmpeg.org/project/ffmpeg/patch/20220730140821.3518-2-jam… -- Ticket URL: <https://trac.ffmpeg.org/ticket/3361#comment:26> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9852(undetermined:new): Single TS transcoding produces incorrect results using H265 HLS
by FFmpeg 01 Aug '22

01 Aug '22

#9852: Single TS transcoding produces incorrect results using H265 HLS -------------------------------------+------------------------------------- Reporter: kirill_p | Type: defect Status: new | Priority: normal Component: | Version: git- undetermined | master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Given MP4 file (recorded by IPhone 13 mini) with H265 codec. Splitting it to an HLS without transcoding (codec copy), and then doing a full transcode of a single segment - TS, let's say the second segment. Then generating a new m3u8 index file, with all the original information, except that the second segment now points to a new transcoded file. The new m3u8 playback will contain errors: FFPlay reports [mpegts @ 00000286995b9180] Packet corrupt (stream = 0, dts = 402000). VLC stucks, shows black frame for a moment, at the beginning and the end of the second segment. Expected: The HLS will play without interruptions. The same flow works perfectly with H264 codec. How to reproduce: Generating HLS: {{{ % ffmpeg -i original.mp4 -c:v copy -an -bsf:v hevc_mp4toannexb -crf 18 -g 30 -sc_threshold 0 -f hls -start_number 0 -hls_time 3 -hls_list_size 0 o.m3u8 ffmpeg version n5.1-1-g6d83c5f876-20220730 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 12.1.0 (crosstool-NG 1.25.0.55_3defb7b) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable- ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable- libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable- libopus --enable-librist --enable-libtheora --enable-libvpx --enable- libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable- libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable- libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable- libxvid --enable-libzimg --enable-libzvbi --extra- cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20220730 libavutil 57. 28.100 / 57. 28.100 libavcodec 59. 37.100 / 59. 37.100 libavformat 59. 27.100 / 59. 27.100 libavdevice 59. 7.100 / 59. 7.100 libavfilter 8. 44.100 / 8. 44.100 libswscale 6. 7.100 / 6. 7.100 libswresample 4. 7.100 / 4. 7.100 libpostproc 56. 6.100 / 56. 6.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'original.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomdby1iso2mp41 encoder : Lavf59.8.100 Duration: 00:00:25.57, start: 0.000000, bitrate: 8740 kb/s Stream #0:0[0x1](und): Video: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 1920x1080, 8565 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 19200 tbn (default) Metadata: handler_name : Core Media Video vendor_id : [0][0][0][0] Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 166 kb/s (default) Metadata: handler_name : Core Media Audio vendor_id : [0][0][0][0] Output #0, hls, to 'o.m3u8': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomdby1iso2mp41 encoder : Lavf59.27.100 Stream #0:0(und): Video: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 8565 kb/s, 30 fps, 30 tbr, 90k tbn (default) Metadata: handler_name : Core Media Video vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help [hls @ 00000264499e2740] Opening 'o0.ts' for writing6 bitrate=N/A speed=N/A [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o1.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o2.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o3.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o4.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o5.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o6.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o7.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing [hls @ 00000264499e2740] Opening 'o8.ts' for writing [hls @ 00000264499e2740] Opening 'o.m3u8.tmp' for writing frame= 767 fps=0.0 q=-1.0 Lsize=N/A time=00:00:25.46 bitrate=N/A speed= 158x video:26735kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown }}} Single TS transcode: {{{ % ffmpeg -i o1.ts -c:v libx265 -x265-params no-open-gop=1:no-scenecut=1 -crf 18 -g 30 -preset fast -copyts -copytb 1 -muxdelay 0 o1edited.ts ffmpeg version n5.1-1-g6d83c5f876-20220730 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 12.1.0 (crosstool-NG 1.25.0.55_3defb7b) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable- ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable- libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable- libopus --enable-librist --enable-libtheora --enable-libvpx --enable- libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable- libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable- libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable- libxvid --enable-libzimg --enable-libzvbi --extra- cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20220730 libavutil 57. 28.100 / 57. 28.100 libavcodec 59. 37.100 / 59. 37.100 libavformat 59. 27.100 / 59. 27.100 libavdevice 59. 7.100 / 59. 7.100 libavfilter 8. 44.100 / 8. 44.100 libswscale 6. 7.100 / 6. 7.100 libswresample 4. 7.100 / 4. 7.100 libpostproc 56. 6.100 / 56. 6.100 Input #0, mpegts, from 'o1.ts': Duration: 00:00:03.10, start: 4.666667, bitrate: 9172 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: hevc (Main 10) (HEVC / 0x43564548), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 1920x1080, 30 fps, 30 tbr, 90k tbn Stream mapping: Stream #0:0 -> #0:0 (hevc (native) -> hevc (libx265)) Press [q] to stop, [?] for help [hevc @ 000002ca49c93a80] Multiple Dolby Vision RPUs found in one AU. Skipping previous. [hevc @ 000002ca49920e80] Multiple Dolby Vision RPUs found in one AU. Skipping previous. [hevc @ 000002ca49921280] Multiple Dolby Vision RPUs found in one AU. Skipping previous. x265 [info]: HEVC encoder version 3.5+38-20255e6f0 x265 [info]: build info [Windows][GCC 12.1.0][64 bit] 10bit x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 x265 [info]: Main 10 profile, Level-4 (Main tier) x265 [info]: Thread pool created using 4 threads x265 [info]: Slices : 1 x265 [info]: frame threads / pool features : 2 / wpp(17 rows) x265 [info]: Coding QT: max CU size, min CU size : 64 / 8 x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2 x265 [info]: Lookahead / bframes / badapt : 15 / 4 / 0 x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0 x265 [info]: References / ref-limit cu / depth : 3 / on / on x265 [info]: AQ: mode / str / qg-size / cu-tree : 2 / 1.0 / 32 / 1 x265 [info]: Rate Control / qCompress : CRF-18.0 / 0.60 x265 [info]: tools: rd=2 psy-rd=2.00 rskip mode=1 signhide tmvp fast-intra x265 [info]: tools: strong-intra-smoothing lslices=6 deblock sao Output #0, mpegts, to 'o1edited.ts': Metadata: encoder : Lavf59.27.100 Stream #0:0: Video: hevc, yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67, progressive), 1920x1080, q=2-31, 30 fps, 90k tbn Metadata: encoder : Lavc59.37.100 libx265 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 93 fps=7.1 q=23.8 Lsize= 3835kB time=00:00:03.03 bitrate=10358.3kbits/s speed=0.233x video:3731kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.809286% x265 [info]: frame I: 4, Avg QP:18.85 kb/s: 25288.08 x265 [info]: frame P: 19, Avg QP:20.14 kb/s: 21011.96 x265 [info]: frame B: 70, Avg QP:23.99 kb/s: 5915.63 x265 [info]: Weighted P-Frames: Y:31.6% UV:31.6% x265 [info]: consecutive B-frames: 17.4% 4.3% 0.0% 13.0% 65.2% encoded 93 frames in 12.92s (7.20 fps), 9833.05 kb/s, Avg QP:22.98 }}} The latest FFMPEG that was used was downloaded today from https://github.com/BtbN/FFmpeg-Builds/releases (Latest Auto-Build (2022-07-30 12:38), ffmpeg-n5.1-latest-win64-gpl-5.1.zip) -- Ticket URL: <https://trac.ffmpeg.org/ticket/9852> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9669(avfilter:new): Subtitles video filter does not correctly rotate/position some Japanese punctuation characters in vertical ASS subtitles
by FFmpeg 01 Aug '22

01 Aug '22

#9669: Subtitles video filter does not correctly rotate/position some Japanese punctuation characters in vertical ASS subtitles ----------------------------------+-------------------------------------- Reporter: y3kcjd5 | Type: defect Status: new | Priority: normal Component: avfilter | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Certain Japanese punctuation characters have to be oriented a certain way for vertical display of subtitles to look correct. The "subtitles" video filter gets it wrong with some characters. I'm attaching some demo files to demonstrate the characters I've found, but there are probably more I've missed. How to reproduce: Run a command such as {{{ ffmpeg -i "5-sec-blank.mp4" -map 0:0 -report -loglevel verbose -map_chapters -1 -map_metadata -1 -vsync "passthrough" -aspect 16:9 -c:v libx264 -movflags faststart -preset slower -x264-params partitions=all:ref=6:me=umh:subme=10:merange=64:trellis=2:fast- pskip=0:bframes=6:b_adapt=2:direct=auto:rc_lookahead=60:crf=20:qcomp=0.80:qpmax=30:qpstep=4 -sws_flags spline+full_chroma_int+full_chroma_inp+accurate_rnd -filter:v subtitles="misrotationdemosubs.ass":original_size=1920x1080:alpha=1,format=yuv420p "subtitlehardcode.mp4" }}} and observe the orientation of the characters hardcoded into the video, then either open the .ass file directly with subtitling software such as Aegisub, or run something like {{{ ffmpeg -i "5-sec-blank.mp4" -i "misrotationdemosubs.ass" -map 0:0 -map 1:0 -c copy subtitlesoftcode.mkv }}} and play the resulting file in a media player with ASS subtitle support (mine uses DirectVobSub). I am running ffmpeg-2022-02-28-git-7a4840a8ca-full_build from gyan.dev in a Windows environment. If you can't get your hands on the "MS UI Gothic" font, just text edit the entry in the .ass file to something on your system (but keep the '@' mark at the beginning that denotes vertical orientation). -- Ticket URL: <https://trac.ffmpeg.org/ticket/9669> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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