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• lavc/h264dsp : stick R-V V biweight to 16-bit

  29 juillet 2024, par Rémi Denis-Courmont

  lavc/h264dsp : stick R-V V biweight to 16-bit
  T-Head C908 (ns) :
  
  h264_biweight2_8_c :        2414.5
  
  h264_biweight2_8_rvv_i32 :   701.8 (before)
  
  h264_biweight2_8_rvv_i32 :   468.5 (after)
  
  h264_biweight4_8_c :        4655.3
  
  h264_biweight4_8_rvv_i32 :  1377.5 (before)
  
  h264_biweight4_8_rvv_i32 :   931.8 (after)
  
  h264_biweight8_8_c :        9701.5
  
  h264_biweight8_8_rvv_i32 :  2896.0 (before)
  
  h264_biweight8_8_rvv_i32 :  2070.5 (after)
  
  h264_biweight16_8_c :      18025.0
  
  h264_biweight16_8_rvv_i32 : 3460.8 (before)
  
  h264_biweight16_8_rvv_i32 : 1978.0 (after)
  SpacemiT X60 (ns) :
  
  h264_biweight2_8_c :        2415.5
  
  h264_biweight2_8_rvv_i32 :   478.2 (before)
  
  h264_biweight2_8_rvv_i32 :   362.8 (after)
  
  h264_biweight4_8_c :        4655.3
  
  h264_biweight4_8_rvv_i32 :   946.7 (before)
  
  h264_biweight4_8_rvv_i32 :   727.3 (after)
  
  h264_biweight8_8_c :        9061.8
  
  h264_biweight8_8_rvv_i32 :  2071.7 (before)
  
  h264_biweight8_8_rvv_i32 :  1685.8 (after)
  
  h264_biweight16_8_c :      18020.5
  
  h264_biweight16_8_rvv_i32 : 3457.2 (before)
  
  h264_biweight16_8_rvv_i32 : 1935.8 (after)
  

  • [DH] libavcodec/riscv/h264dsp_rvv.S

• avformat/asf : Use ff_add_attached_pic() to read attached pics

  29 mars 2021, par Andreas Rheinhardt

  avformat/asf : Use ff_add_attached_pic() to read attached pics
  Also removes a stack packet.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavformat/asf.c

• obs-studio build fails on Debian distros

  24 août 2021, par Fabian Druschke

  Ahoy ahoy.
Currently i am trying to compile obs-studio on my Debian machine (Debian Bullseye).
I have compiled FFMpeg myself in order to enable nvenc support for NVIDIA hardware acceleration.
Now i try to compile obs-studio but it always breaks at this error :

  


  [ 41%] Built target obs-x264
[ 42%] Built target obs-libfdk
[ 43%] Building C object plugins/obs-ffmpeg/CMakeFiles/obs-ffmpeg.dir/obs-ffmpeg-audio-encoders.c.o
In file included from /tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:27:
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-formats.h:3:47: error: unknown type name ‘AVCodecContext’; did you mean ‘AVFormatContext’?
    3 | static inline int64_t rescale_ts(int64_t val, AVCodecContext *context,
      |                                               ^~~~~~~~~~~~~~
      |                                               AVFormatContext
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c: In function ‘convert_speaker_layout’:
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:65:10: error: ‘AV_CH_LAYOUT_MONO’ undeclared (first use in this function)
   65 |   return AV_CH_LAYOUT_MONO;
      |          ^~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:65:10: note: each undeclared identifier is reported only once for each function it appears in
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:67:10: error: ‘AV_CH_LAYOUT_STEREO’ undeclared (first use in this function)
   67 |   return AV_CH_LAYOUT_STEREO;
      |          ^~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:69:10: error: ‘AV_CH_LAYOUT_SURROUND’ undeclared (first use in this function)
   69 |   return AV_CH_LAYOUT_SURROUND;
      |          ^~~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:71:10: error: ‘AV_CH_LAYOUT_4POINT0’ undeclared (first use in this function)
   71 |   return AV_CH_LAYOUT_4POINT0;
      |          ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:73:10: error: ‘AV_CH_LAYOUT_4POINT1’ undeclared (first use in this function)
   73 |   return AV_CH_LAYOUT_4POINT1;
      |          ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:75:10: error: ‘AV_CH_LAYOUT_5POINT1_BACK’ undeclared (first use in this function)
   75 |   return AV_CH_LAYOUT_5POINT1_BACK;
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:77:10: error: ‘AV_CH_LAYOUT_7POINT1’ undeclared (first use in this function)
   77 |   return AV_CH_LAYOUT_7POINT1;
      |          ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c: In function ‘convert_ff_channel_layout’:
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:88:7: error: ‘AV_CH_LAYOUT_MONO’ undeclared (first use in this function)
   88 |  case AV_CH_LAYOUT_MONO:
      |       ^~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:90:7: error: ‘AV_CH_LAYOUT_STEREO’ undeclared (first use in this function)
   90 |  case AV_CH_LAYOUT_STEREO:
      |       ^~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:92:7: error: ‘AV_CH_LAYOUT_SURROUND’ undeclared (first use in this function)
   92 |  case AV_CH_LAYOUT_SURROUND:
      |       ^~~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:94:7: error: ‘AV_CH_LAYOUT_4POINT0’ undeclared (first use in this function)
   94 |  case AV_CH_LAYOUT_4POINT0:
      |       ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:96:7: error: ‘AV_CH_LAYOUT_4POINT1’ undeclared (first use in this function)
   96 |  case AV_CH_LAYOUT_4POINT1:
      |       ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:98:7: error: ‘AV_CH_LAYOUT_5POINT1_BACK’ undeclared (first use in this function)
   98 |  case AV_CH_LAYOUT_5POINT1_BACK:
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:100:7: error: ‘AV_CH_LAYOUT_7POINT1’ undeclared (first use in this function)
  100 |  case AV_CH_LAYOUT_7POINT1:
      |       ^~~~~~~~~~~~~~~~~~~~
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c: In function ‘enc_create’:
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:205:13: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  205 |  enc->codec = avcodec_find_encoder_by_name(type);
      |             ^
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:209:14: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  209 |   enc->codec = avcodec_find_encoder_by_name(alt);
      |              ^
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c: In function ‘do_encode’:
/tmp/obs-studio/plugins/obs-ffmpeg/obs-ffmpeg-audio-encoders.c:343:16: error: implicit declaration of function ‘rescale_ts’ [-Werror=implicit-function-declaration]
  343 |  packet->pts = rescale_ts(avpacket.pts, enc->context, time_base);
      |                ^~~~~~~~~~
cc1: some warnings being treated as errors
make[2]: *** [plugins/obs-ffmpeg/CMakeFiles/obs-ffmpeg.dir/build.make:95: plugins/obs-ffmpeg/CMakeFiles/obs-ffmpeg.dir/obs-ffmpeg-audio-encoders.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1381: plugins/obs-ffmpeg/CMakeFiles/obs-ffmpeg.dir/all] Error 2
make: *** [Makefile:171: all] Error 2


  


  I didn't find any fixes yet. So i thought i was clever, so i set up a Debian Sid virtual machine and instead of using the git, i used apt source obs-studio and apt build-dep obs-studio. Unfortunately the result was the same, dpkg-buildpackage -rfakeroot -b -uc -us had the same result, in the same file : obs-ffmpeg-audio-encoders.c
What might be the issue here ? Did i miss something fundamental ? Thanks in advance friends !