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• avutil/hwcontext_cuda : Define and use common CHECK_CU()

  11 novembre 2018, par Philip Langdale

  avutil/hwcontext_cuda : Define and use common CHECK_CU()
  We have a pattern of wrapping CUDA calls to print errors and
  
  normalise return values that is used in a couple of places. To
  
  avoid duplication and increase consistency, let's put the wrapper
  
  implementation in a shared place and use it everywhere.
  Affects :
  * avcodec/cuviddec
  
  * avcodec/nvdec
  
  * avcodec/nvenc
  
  * avfilter/vf_scale_cuda
  
  * avfilter/vf_scale_npp
  
  * avfilter/vf_thumbnail_cuda
  
  * avfilter/vf_transpose_npp
  
  * avfilter/vf_yadif_cuda
  

  • [DH] libavcodec/Makefile
  • [DH] libavcodec/cuda_check.c
  • [DH] libavcodec/cuviddec.c
  • [DH] libavcodec/nvdec.c
  • [DH] libavcodec/nvenc.c
  • [DH] libavfilter/Makefile
  • [DH] libavfilter/cuda_check.c
  • [DH] libavfilter/vf_scale_cuda.c
  • [DH] libavfilter/vf_scale_npp.c
  • [DH] libavfilter/vf_thumbnail_cuda.c
  • [DH] libavfilter/vf_transpose_npp.c
  • [DH] libavfilter/vf_yadif_cuda.c
  • [DH] libavutil/Makefile
  • [DH] libavutil/cuda_check.c
  • [DH] libavutil/cuda_check.h
  • [DH] libavutil/hwcontext_cuda.c

• Loop overlay input video

  30 novembre 2017, par Janis S.

  I use ffmpeg command to overlay one video over the other.
  The shortest in2.mp4 is 30s and I would like to repeat it until the longest in1.avi stops. With the following command, shortest is overlaid once and longest continues until its end.

  ffmpeg -i in1.avi -i in2.mp4 -filter_complex "[0:v]setpts=PTS-STARTPTS, scale=1920x1080[top];[1:v]setpts=PTS-STARTPTS, scale=1920x1080, format=yuva420p, colorchannelmixer=aa=0.5[bottom]; [top][bottom]overlay=shortest=0" -acodec libvo_aacenc -vcodec libx264 out.mp4

  I have tried to place loop=-1 in various places after -filter_complex but get an error

  No such filter: 'loop' Error initializing complex filters. Invalid argument

  Complete output :

  ffmpeg -i in1.avi -i in2.mp4 -filter_complex "[0:v]setpts=PTS-STARTPTS, scale=1920x1080[top];[1:v]setpts=PTS-STARTPTS, scale=1920x1080, format=yuva420p, colorchannelmixer=aa=0.5,loop=-1[bottom]; [top][bottom]overlay=shortest=0" -acodec libvo_aacenc -vcodec libx264 out.mp4
  
  ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers   built with gcc 5.2.0 (GCC)   configuration: --enable-gpl
  
  --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib   libavutil      54. 31.100 / 54. 31.100   libavcodec     56. 60.100 /
  
  56. 60.100   libavformat    56. 40.101 / 56. 40.101   libavdevice    56.  4.100 / 56.  4.100   libavfilter     5. 40.101 /  5. 40.101   libswscale      3.  1.101 /  3.  1.101   libswresample   1.  2.101 / 
  
  1.  2.101   libpostproc    53.  3.100 / 53.  3.100 Input #0, avi, from 'in1.avi':   Metadata:
  
      encoder         : Lavf57.32.100   Duration: 00:03:03.28, start: 0.000000, bitrate: 3003 kb/s
  
      Stream #0:0: Video: h264 (High 4:4:4 Predictive) (H264 / 0x34363248), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], 160 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  
      Stream #0:1: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'in2.mp4':   Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomavc1
  
      creation_time   : 2016-11-05 17:25:45   Duration: 00:00:15.02, start: 0.000000, bitrate: 4071 kb/s
  
      Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 3815 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
  
      Metadata:
  
        creation_time   : 2016-11-05 17:25:45
  
        handler_name    : L-SMASH Video Handler
  
        encoder         : AVC Coding
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 255 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-11-05 17:25:45
  
        handler_name    : L-SMASH Audio Handler [AVFilterGraph @ 056a41e0] No such filter: 'loop' Error initializing complex filters. Invalid argument

• ffmpeg : rewrite setting the stream disposition

  12 novembre 2021, par Anton Khirnov

  ffmpeg : rewrite setting the stream disposition
  Currently, the code doing this is spread over several places and may
  
  behave in unexpected ways. E.g. automatic 'default' marking is only done
  
  for streams fed by complex filtergraphs. It is also applied in the order
  
  in which the output streams are initialized, which is effectively
  
  random.
  Move processing the dispositions at the end of open_output_file(), when
  
  we already have all the necessary information.
  Apply the automatic default marking only if no explicit -disposition
  
  options were supplied by the user, and apply it to the first stream of
  
  each type (excluding attached pics) when there is more than one stream
  
  of that type and no default markings were copied from the input streams.
  Explicitly document the new behavior.
  Changes the results of some tests, where the output file gets a default
  
  disposition, while it previously did not.
  

  • [DH] doc/ffmpeg.texi
  • [DH] fftools/ffmpeg.c
  • [DH] fftools/ffmpeg_opt.c
  • [DH] tests/ref/fate/ffprobe_compact
  • [DH] tests/ref/fate/ffprobe_csv
  • [DH] tests/ref/fate/ffprobe_default
  • [DH] tests/ref/fate/ffprobe_flat
  • [DH] tests/ref/fate/ffprobe_ini
  • [DH] tests/ref/fate/ffprobe_json
  • [DH] tests/ref/fate/ffprobe_xml
  • [DH] tests/ref/fate/ffprobe_xsd
  • [DH] tests/ref/fate/matroska-mastering-display-metadata