December 2021 - FFmpeg-trac - lists.ffmpeg.org

#5831(undetermined:new): HDR Metadata in Encoding
by FFmpeg 14 Jan '22

14 Jan '22

#5831: HDR Metadata in Encoding -------------------------------------+------------------------------------- Reporter: | Type: smallishzulu | enhancement Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: metadata, | Blocked By: hdr | Reproduced by developer: 0 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Hi, I try to dump HDR metadata (mastering display color primaries & luminance) of a HDR video using; root@kizil105:/home/admintv# /opt/ffmpeg/bin/ffmpeg -i /tmp/exodus_hdr.mp4 -f ffmetadata -y metadata.txt ffmpeg version N-81560-ge3fd185 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/opt/ffmpeg --enable-shared --enable-static --enable-nonfree --enable-gpl --extra-cflags='-I/opt/ffmpeg/include -I/usr/local/include' --extra-ldflags=-L/opt/ffmpeg/lib --bindir=/opt/ffmpeg/bin --extra-libs=-ldl --enable-libx264 --enable- libx265 --enable-nonfree --enable-gpl --enable-nvenc --enable-vdpau --enable-libzvbi --enable-libfdk-aac --enable-libzimg --enable-avresample --enable-libzmq --enable-libfreetype libavutil 55. 29.100 / 55. 29.100 libavcodec 57. 54.102 / 57. 54.102 libavformat 57. 48.102 / 57. 48.102 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 60.100 / 6. 60.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 [aac @ 0x1cb64c0] This stream seems to incorrectly report its last channel as LFE[3], mapping to LFE[0] Input #0, mpegts, from '/tmp/exodus_hdr.mp4': Duration: 00:00:02.13, start: 1.525000, bitrate: 44519 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: hevc (Main 10) ([36][0][0][0] / 0x0024), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 23.98 fps, 24 tbr, 90k tbn, 23.98 tbc Stream #0:1[0x101](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, 5.1, fltp, 400 kb/s Output #0, ffmetadata, to 'metadata.txt': Metadata: encoder : Lavf57.48.102 Stream mapping: Press [q] to stop, [?] for help size= 0kB time=-577014:32:22.77 bitrate=N/A speed=N/A video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Output file is empty, nothing was encoded However; I am not able to get HDR related metadata: root@kizil105:/home/admintv# cat metadata.txt ;FFMETADATA1 encoder=Lavf57.48.102 Mediainfo output for exodus_hdr.mp4: General ID : 1 (0x1) Complete name : C:\Users\Ali KIZIL\Desktop\exodus_hdr.mp4 Format : MPEG-TS File size : 11.3 MiB Duration : 2 s 83 ms Overall bit rate mode : Variable Overall bit rate : 45.4 Mb/s Video ID : 256 (0x100) Menu ID : 1 (0x1) Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L5.1@High Codec ID : 36 Duration : 2 s 83 ms Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 (Type 2) Bit depth : 10 bits Writing library : ATEME Titan KFE 3.7.0 (4.7.0.2002) Color range : Limited Color primaries : BT.2020 Transfer characteristics : SMPTE ST 2084 Matrix coefficients : BT.2020 non-constant Mastering display color primaries : R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000 Mastering display luminance : min: 0.0200 cd/m2, max: 1200.0000 cd/m2 Audio ID : 257 (0x101) Menu ID : 1 (0x1) Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Muxing mode : ADTS Codec ID : 15 Duration : 1 s 877 ms Bit rate mode : Variable Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 spf) Compression mode : Lossy Menu ID : 4096 (0x1000) Menu ID : 1 (0x1) List : 256 (0x100) (HEVC) / 257 (0x101) (AAC) Service name : Service01 Service provider : FFmpeg Service type : digital television HRD Metadata part is: Mastering display color primaries : R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000 Mastering display luminance : min: 0.0200 cd/m2, max: 1200.0000 cd/m2 It would be nice to import this metadata info back to encode such like; /opt/ffmpeg/bin/ffmpeg -loglevel verbose-re -i /media/usb0/4k_sampels/Exodus_UHD_HDR_Exodus_draft.mp4 -i metadata.txt -map_metadata 1 -c:v:0 nvenc_hevc -preset llhq -profile:v:0 main10 -vb 8000k -c:a:0 mp2 -b:a:0 384k -f mpegts -color_range 1 -color_trc smpte2084 -color_primaries bt2020 -colorspace 9 -y /tmp/out.ts for HDR transcoding. Additional note: Below command also does not add metadat to transcoding: /opt/ffmpeg/bin/ffmpeg -loglevel verbose-re -i /media/usb0/4k_sampels/Exodus_UHD_HDR_Exodus_draft.mp4 -c:v:0 nvenc_hevc -preset llhq -profile:v:0 main10 -vb 8000k -c:a:0 mp2 -b:a:0 384k -f mpegts -metadata:s:v:0 master- display="G(13248,34499)B(7500,2999)R(34000,15999)WP(15700,17550)L(10000000,100)" -color_range 1 -color_trc smpte2084 -color_primaries bt2020 -colorspace 9 -y /tmp/out.ts Kind Regards, -- Ticket URL: <https://trac.ffmpeg.org/ticket/5831> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#7017(avcodec:new): Automatic reservation for index space for matroska
by FFmpeg 14 Jan '22

14 Jan '22

#7017: Automatic reservation for index space for matroska ----------------------------------+--------------------------------------- Reporter: xtemp09 | Type: enhancement Status: new | Priority: normal Component: avcodec | Version: unspecified Keywords: matroska | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- When you use ''-movflags +faststart'', FFMPEG muxes the file, then muxes it again, moving all the metadata about all packets to the beginning of the file. However, when it comes to Matroska, using ''-reserve_index_space'', one has to mux it manually, and then get the error, using the info given in the error, mux it again with the right value for reserved space. Is there a way to optimize it, like ''-movflags +faststart'' and let FFMPEG choose what space is necessary and automate it? -- Ticket URL: <https://trac.ffmpeg.org/ticket/7017> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9572(undetermined:new): ffmpeg creating broken 0 byte files
by FFmpeg 09 Jan '22

09 Jan '22

#9572: ffmpeg creating broken 0 byte files -------------------------------------+------------------------------------- Reporter: Joe | Type: defect Status: new | Priority: important Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- I am not super technical, but I will try and provide the best description of the issue below. Summary of the bug: How to reproduce: I am trying to reduce a large wav audio file (792MB). I use powershell to run the below command. {{{ % ffmpeg -i input audiofile.wav -acodec libvorbis -b:a 320k output.ogg ffmpeg version 4.4.1-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 11.2.0 (Rev1, Built by MSYS2 project) }}} The Full output I get is this {{{ Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, wav, from 'Forest.wav': Metadata: encoder : Adobe Audition 22.1 (Windows) date : 2021-12-26 creation_time : 21:25:15 time_reference : 0 Duration: 00:18:02.06, bitrate: 6144 kb/s Stream #0:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 96000 Hz, stereo, flt, 6144 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_f32le (native) -> vorbis (libvorbis)) Press [q] to stop, [?] for help [libvorbis @ 000001492f617e40] encoder setup failed Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height Conversion failed! }}} The file it creates is a 0 byte file that can't be deleted except for cmd admin commands. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9572> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#4768(ffmpeg:new): FFmpeg preserving CFR during TS to MP4 conversion
by FFmpeg 07 Jan '22

07 Jan '22

#4768: FFmpeg preserving CFR during TS to MP4 conversion --------------------------------+--------------------------------------- Reporter: zer0z | Type: enhancement Status: new | Priority: normal Component: ffmpeg | Version: 1.0.10 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------+--------------------------------------- Summary of the bug: Problem due to technical limitation of TS format, duration are rounded and this rounding is not detected during TS to MP4 (not a bug, only a lack of feature). Instead FFmpeg should detect the CFR in TS to MP4 conversion and create a CFR stts atom. Instead of the actual stts (time table) atom which takes lot of space and which is not CFR stricly speaking. I convert MP4 to TS, which has a hard coded (spec) frequency of 90 000 Hz. ffmpeg converts it as it can, with some rounding (in my time time line: sometime 3754, sometime 3753, but the real duration should be 3753.75, and Ts accepts no decimal). Then I convert it back to MP4, and ffmpeg does not understand it is CFR, so it provides the same rounding. Resultant file ends up as VFR. How to reproduce: From ffmpeg wiki: If you have MP4 files, these could be losslessly concatenated by first transcoding them to mpeg transport streams. With h.264 video and AAC audio, the following can be used: ffmpeg -i input1.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts ffmpeg -i input2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts ffmpeg -i "concat:intermediate1.ts|intermediate2.ts" -c copy -bsf:a aac_adtstoasc output.mp4 I convert 1.mp4, 2.mp4, 3.mp4 (all encoded at CFR) with above method to .ts. Then issue: ffmpeg -i "concat:1.ts|2.ts|3.ts" -c copy -bsf:a aac_adtstoasc merged.mp4 Due to the above issue the result from concat will be VFR: Frame rate mode : Variable Frame rate : 23.976 fps Minimum frame rate : 23.968 fps Maximum frame rate : 23.981 fps If this can be looked into and hopefully resolved to preserve the Constant frame rate I would really appreciate it. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4768> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#6077(undetermined:new): openCL cannot be run simultaneously with h264_qsv ?
by FFmpeg 07 Jan '22

07 Jan '22

#6077: openCL cannot be run simultaneously with h264_qsv ? -------------------------------------+------------------------------------- Reporter: laurfb | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: openCL | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Hi. Trying to run: ffmpeg -i input.avi -vf unsharph=opencl=1 -f mp4 -c:v h264_qsv output.mp4 ffmpeg hang with error message: "Display driver stopped responding and has recovered. Display Driver Intel HD Graphics Driver for Windows 8(R) stopped responding and has recovered" Seems to run normally with either opencl or qsv alone. My system: i7-4790K, Intel HD 4600 graphics with latest driver installed. Bug or am I doing something wrong? regards, laur The uncut console output: ffmpeg started on 2017-01-13 at 11:04:21 Report written to "ffmpeg-20170113-110421.log" Command line: ffmpeg -i input.avi -vf unsharp=opencl=1 -f mp4 -c:v h264_qsv -y output.mp4" -report ffmpeg version N-83096-g6596b34 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 6.2.0 (Rev2, Built by MSYS2 project) configuration: --enable-avisynth --enable-gcrypt --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libx264 --enable-libx265 --enable-cuda --enable-cuvid --enable-schannel --enable-sdl2 --disable- w32threads --enable-decklink --enable-fontconfig --enable-libbs2b --enable-libfreetype --enable-libfribidi --enable-libmfx --enable-libsoxr --enable-libspeex --enable-libtwolame --enable-libvidstab --enable- libwavpack --enable-libxvid --enable-libzimg --enable-gmp --enable-nvenc --enable-opencl --enable-libfdk-aac --enable-gpl --enable-version3 --enable-nonfree --disable-debug libavutil 55. 43.100 / 55. 43.100 libavcodec 57. 72.100 / 57. 72.100 libavformat 57. 62.100 / 57. 62.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 69.100 / 6. 69.100 libswscale 4. 3.101 / 4. 3.101 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 Splitting the commandline. Reading option '-i' ... matched as input url with argument 'input.avi'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'unsharp=opencl=1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'h264_qsv'. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option 'E:\opencl_1.mp4' ... matched as output url. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Finished splitting the commandline. Parsing a group of options: global . Applying option y (overwrite output files) with argument 1. Applying option report (generate a report) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url input.avi. Successfully parsed a group of options. Opening an input file: input.avi. [file @ 000000000058ac00] Setting default whitelist 'file,crypto' [avi @ 0000000000347ee0] Format avi probed with size=2048 and score=100 [avi @ 0000000000349a00] use odml:1 [avi @ 0000000000347ee0] Before avformat_find_stream_info() pos: 132096 bytes read:458752 seeks:16 nb_streams:2 [avi @ 0000000000347ee0] parser not found for codec dvvideo, packets or times may be invalid. [avi @ 0000000000347ee0] parser not found for codec pcm_s16le, packets or times may be invalid. [avi @ 0000000000347ee0] parser not found for codec dvvideo, packets or times may be invalid. [avi @ 0000000000347ee0] parser not found for codec pcm_s16le, packets or times may be invalid. [avi @ 0000000000347ee0] All info found [avi @ 0000000000347ee0] After avformat_find_stream_info() pos: 4760328 bytes read:5115648 seeks:16 frames:33 Guessed Channel Layout for Input Stream #0.1 : stereo Input #0, avi, from 'input.avi': Duration: 00:04:43.60, start: 0.000000, bitrate: 30346 kb/s Stream #0:0, 32, 1/25: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 28804 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1, 1, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s Successfully opened the file. Parsing a group of options: output url E:\opencl_1.mp4. Applying option vf (set video filters) with argument unsharp=opencl=1. Applying option f (force format) with argument mp4. Applying option c:v (codec name) with argument h264_qsv. Successfully parsed a group of options. Opening an output file: E:\opencl_1.mp4. [file @ 0000000000590ca0] Setting default whitelist 'file,crypto' Successfully opened the file. detected 8 logical cores [Parsed_unsharp_0 @ 0000000000601460] Setting 'opencl' to value '1' [opencl @ 00000001411b4d40] Platform Name: Intel(R) Corporation, Device Name: Intel(R) HD Graphics 4600 [opencl @ 00000001411b4d40] Compilation log: fcl build 1 succeeded. fcl build 2 succeeded. bcl build succeeded. [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'video_size' to value '720x576' [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'pix_fmt' to value '0' [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'time_base' to value '1/25' [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'pixel_aspect' to value '64/45' [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0000000000600300] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 0000000000600300] w:720 h:576 pixfmt:yuv420p tb:1/25 fr:25/1 sar:64/45 sws_param:flags=2 [format @ 00000000005916e0] compat: called with args=[nv12|qsv] [format @ 00000000005916e0] Setting 'pix_fmts' to value 'nv12|qsv' [auto_scaler_0 @ 0000000003198720] Setting 'flags' to value 'bicubic' [auto_scaler_0 @ 0000000003198720] w:iw h:ih flags:'bicubic' interl:0 [format @ 00000000005916e0] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_unsharp_0' and the filter 'format' [AVFilterGraph @ 0000000002eb1e80] query_formats: 4 queried, 2 merged, 1 already done, 0 delayed [Parsed_unsharp_0 @ 0000000000601460] effect:sharpen type:luma msize_x:5 msize_y:5 amount:1.00 [Parsed_unsharp_0 @ 0000000000601460] effect:none type:chroma msize_x:5 msize_y:5 amount:0.00 [auto_scaler_0 @ 0000000003198720] w:720 h:576 fmt:yuv420p sar:64/45 -> w:720 h:576 fmt:nv12 sar:64/45 flags:0x4 [h264_qsv @ 0000000002cc7100] Initialized an internal MFX session using hardware accelerated implementation [h264_qsv @ 0000000002cc7100] Using the VBR with lookahead (LA) ratecontrol method [h264_qsv @ 0000000002cc7100] profile: high; level: 30 [h264_qsv @ 0000000002cc7100] GopPicSize: 250; GopRefDist: 4; GopOptFlag: closed ; IdrInterval: 0 [h264_qsv @ 0000000002cc7100] TargetUsage: 4; RateControlMethod: LA [h264_qsv @ 0000000002cc7100] TargetKbps: 1000; LookAheadDepth: 40 [h264_qsv @ 0000000002cc7100] NumSlice: 1; NumRefFrame: 2 [h264_qsv @ 0000000002cc7100] RateDistortionOpt: OFF [h264_qsv @ 0000000002cc7100] RecoveryPointSEI: OFF IntRefType: 0; IntRefCycleSize: 0; IntRefQPDelta: 0 [h264_qsv @ 0000000002cc7100] MaxFrameSize: 311040; MaxSliceSize: 0; [h264_qsv @ 0000000002cc7100] BitrateLimit: ON; MBBRC: OFF; ExtBRC: unknown [h264_qsv @ 0000000002cc7100] Trellis: auto [h264_qsv @ 0000000002cc7100] RepeatPPS: ON; NumMbPerSlice: 0; LookAheadDS: unknown [h264_qsv @ 0000000002cc7100] AdaptiveI: unknown; AdaptiveB: unknown; BRefType: off [h264_qsv @ 0000000002cc7100] MinQPI: 0; MaxQPI: 0; MinQPP: 0; MaxQPP: 0; MinQPB: 0; MaxQPB: 0 [h264_qsv @ 0000000002cc7100] Entropy coding: CABAC; MaxDecFrameBuffering: 2 [h264_qsv @ 0000000002cc7100] NalHrdConformance: OFF; SingleSeiNalUnit: ON; VuiVclHrdParameters: OFF VuiNalHrdParameters: OFF [graph_1_in_0_1 @ 0000000002c99a60] Setting 'time_base' to value '1/48000' [graph_1_in_0_1 @ 0000000002c99a60] Setting 'sample_rate' to value '48000' [graph_1_in_0_1 @ 0000000002c99a60] Setting 'sample_fmt' to value 's16' [graph_1_in_0_1 @ 0000000002c99a60] Setting 'channel_layout' to value '0x3' [graph_1_in_0_1 @ 0000000002c99a60] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3 [format_out_0_1 @ 0000000002c99c00] Setting 'sample_fmts' to value 'fltp' [format_out_0_1 @ 0000000002c99c00] Setting 'sample_rates' to value '96000|88200|64000|48000|44100|32000|24000|22050|16000|12000|11025|8000|7350' [format_out_0_1 @ 0000000002c99c00] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_1' [AVFilterGraph @ 0000000002eb1fa0] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed [auto_resampler_0 @ 0000000002c99ce0] [SWR @ 0000000002c000a0] Using s16p internally between filters [auto_resampler_0 @ 0000000002c99ce0] ch:2 chl:stereo fmt:s16 r:48000Hz -> ch:2 chl:stereo fmt:fltp r:48000Hz Output #0, mp4, to 'E:\opencl_1.mp4': Metadata: encoder : Lavf57.62.100 Stream #0:0, 0, 1/12800: Video: h264 (h264_qsv) ([33][0][0][0] / 0x0021), nv12, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 1000 kb/s, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc57.72.100 h264_qsv Side data: cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1 Stream #0:1, 0, 1/48000: Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s Metadata: encoder : Lavc57.72.100 aac Stream mapping: Stream #0:0 -> #0:0 (dvvideo (native) -> h264 (h264_qsv)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) Clipping frame in rate conversion by 0.000008 cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) Received windows signal 2 -- Ticket URL: <https://trac.ffmpeg.org/ticket/6077> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9568(undetermined:new): FFmpeg crashed with input dshow filter
by FFmpeg 05 Jan '22

05 Jan '22

#9568: FFmpeg crashed with input dshow filter -------------------------------------+------------------------------------- Reporter: kgp700 | Type: defect Status: new | Priority: critical Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Precondition : 1. Build ffmpeg x86(32bit) binary git this commit (https://github.com/FFmpeg/FFmpeg/commit/911ba8417e8881a7380842e69e11ca05fdc… #diff-d1c8390949244131fb904eb8338dcc0c33fedaf006bac94bfc0b6448aa0b595c) or master commit How to reproduce: 1.Run with Precondition build ffmpeg "F:\Infinity_Media_Encoder_Alpha52\Tools\ffmpeg32\ffmpeg.exe" -y -rtbufsize 2100M -f dshow -i video="OBS-Camera":audio="OBS-Audio" -pix_fmt yuv420p -vcodec libx264 -preset fast -profile:v high -g 60 -keyint_min 60 -b:v 6500k -threads 0 -x264-params ref=2:fullrange=off:colorprim=bt709:me=umh:ref=4:mixed- refs=1:deblock=1,1:8x8dct=1:bframes=5:merange=25:subme=8:psy- rd=0.3:trellis=1:direct=auto:chroma_me=1:weightp=2:no-dct-decimate=1:no- fast-pskip=1:rc_lookahead=50:qcomp=0.9:ipratio=1.41:aq-mode=3:aq- strength=0.6:b-adapt=1:b-pyramid=1:no-scenecut=1 -bufsize:v 6500k -maxrate:v 6500k -minrate:v 6500k -acodec aac -b:a 192k -ar 48000 -map_metadata -1 -map_chapters -1 -f flv "rtmp://192.168.50.243:1936/livetest2/kgn" Actual Result : FFmpeg crashed (last log is [dshow @ 069c6c80] Selecting pin Video on video) Comment : 1. '''only reproduce on x86 build''', can't reproduce on x86_64 build 2. no problem with this commit build (https://github.com/FFmpeg/FFmpeg/commit/56709ca8aaffed529b62b2afa4288325d64…) -- Ticket URL: <https://trac.ffmpeg.org/ticket/9568> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9370(build system:new): ffmpeg nvenc/nvdec new build dependency ?
by FFmpeg 01 Jan '22

01 Jan '22

#9370: ffmpeg nvenc/nvdec new build dependency ? -------------------------------------+------------------------------------- Reporter: hydra3333 | Type: task Status: new | Priority: normal Component: build | Version: git- system | master Keywords: nvenc nvdec | Blocked By: SDK | Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the potential issue: In regard to commit 00b579890d866f0dd2f34bcb8aceb890ab29f582 https://git.videolan.org/?p=ffmpeg.git;a=blobdiff;f=libavcodec/nvenc.c;h=81… I see this line: {{{ av_log(avctx, AV_LOG_WARNING, "Failed setting QP CB/CR offsets, SDK 11.1 or greater required at compile time.\n"); }}} I was under an impression that compiling ffmpeg with NV headers was all that was required to enable the Nvidia nvenc/nvdec encoder/decoder in ffmpeg and that no SDK was required to be installed at compile time. Up until now ffmpeg seems to have built and nvenc has worked for me without the SDK being installed at compile time - since I and others cross-compile ffmpeg under Unubtu/mingw64 for target Windows 10 x64, installing the nvidia SDK in this scenario is not an option. Can you please clarify whether indeed the Nvidia SDK 11.1 or greater is now actually required to be installed in order to build ffmpeg with nvenc/nvdec enabled ? Thank you. If so, it's probably a deal breaker for cross-compiling ffmpeg ? Thank you. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9370> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9442(avfilter:new): overlay_cuda: green line on overlaid video
by FFmpeg 01 Jan '22

01 Jan '22

#9442: overlay_cuda: green line on overlaid video ----------------------------------+-------------------------------------- Reporter: pero | Type: defect Status: new | Priority: normal Component: avfilter | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Hello, With filter "overlay_cuda", the overlaid video has a green line at the bottom. It only happens, if the overlaid video was scaled down with "scale_npp" before overlaying. Screenshot attached. How to reproduce: {{{ ffmpeg -y -hwaccel cuvid -hwaccel_output_format cuda -c:v h264_cuvid -i v1.mp4 -hwaccel cuvid -hwaccel_output_format cuda -c:v h264_cuvid -i v2.mp4 -filter_complex "[1:v]scale_npp=w=640:h=360[scaled];[0:v][scaled]overlay_cuda=x=0:y=0" -an -c:v h264_nvenc output.mp4 }}} Output: {{{ ffmpeg version N-103787-ga487635b85 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-17ubuntu1~20.04) configuration: --enable-filter=overlay_cuda --enable-nonfree --enable- cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 libavutil 57. 6.100 / 57. 6.100 libavcodec 59. 9.100 / 59. 9.100 libavformat 59. 5.100 / 59. 5.100 libavdevice 59. 0.101 / 59. 0.101 libavfilter 8. 9.100 / 8. 9.100 libswscale 6. 1.100 / 6. 1.100 libswresample 4. 0.100 / 4. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'v1.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.26.100 Duration: 00:00:56.00, start: 0.000000, bitrate: 1489 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1351 kb/s, 25 fps, 25 tbr, 90k tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'v2.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.26.100 Duration: 00:01:28.01, start: 0.000000, bitrate: 1487 kb/s Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1350 kb/s, 25 fps, 25 tbr, 90k tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Stream #1:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Stream mapping: Stream #0:0 (h264_cuvid) -> overlay_cuda:main Stream #1:0 (h264_cuvid) -> scale_npp overlay_cuda -> Stream #0:0 (h264_nvenc) Press [q] to stop, [?] for help Output #0, mp4, to 'output.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf59.5.100 Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), cuda(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 2000 kb/s, 25 fps, 12800 tbn (default) Metadata: encoder : Lavc59.9.100 h264_nvenc Side data: cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A }}} Thank you! -- Ticket URL: <https://trac.ffmpeg.org/ticket/9442> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#9578(ffplay:new): FFplay ignores stdin
by FFmpeg 31 Dec '21

31 Dec '21

#9578: FFplay ignores stdin -----------------------------------+---------------------------------- Reporter: btdmaster | Type: defect Status: new | Priority: normal Component: ffplay | Version: 4.4.1 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -----------------------------------+---------------------------------- FFplay ignores stdin; only the window spawned can be used to control output. Steps to reproduce: ffplay arbitraryvideofile.mkv # or any other file # Go back to spawning terminal emulator. Type in q to quit. Expected result: FFplay would quit. Actual result: Terminal emulator receives stdin, FFmpeg does nothing. The same applies for all the other hotkeys. This is worse with -nodisp, as the lack of a graphical display means that, effectively, there is no way to modify the output like change volume. Because of this it is important that FFplay takes into account input from stdin. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9578> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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Re: [FFmpeg-trac] #1851(swscale:closed): libswscale does incorrect range conversion for RGB->YUV and RGB->RGB
by FFmpeg 29 Dec '21

29 Dec '21

#1851: libswscale does incorrect range conversion for RGB->YUV and RGB->RGB ------------------------------------+----------------------------------- Reporter: gjdfgh | Owner: (none) Type: defect | Status: closed Priority: important | Component: swscale Version: git-master | Resolution: invalid Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ------------------------------------+----------------------------------- Comment (by Balling): Can we reopen this for limited RGB support in the future? -- Ticket URL: <https://trac.ffmpeg.org/ticket/1851#comment:3> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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