ffmpeg

History

zhilizhao cf1746d779 ffmpeg_videotoolbox: skip memory copy if hwaccel_output_format match

Simple test results:

Command:
./ffmpeg -y -hwaccel videotoolbox -hwaccel_output_format videotoolbox_vld \
  -i test.mp4 -an -c:v h264_videotoolbox -benchmark out.mp4

Before:
frame= 1221 fps= 66 q=-0.0 Lsize=    3144kB time=00:00:20.33 bitrate=1266.6kbits/s dup=4 drop=0 speed= 1.1x
bench: utime=2.714s stime=1.218s rtime=18.574s

After:
frame= 1221 fps=137 q=-0.0 Lsize=    3144kB time=00:00:20.33 bitrate=1266.4kbits/s dup=4 drop=0 speed=2.28x
bench: utime=1.450s stime=1.440s rtime=8.924s

It has limited usecase since there is no video filter support, so
a log message is added to notify the user.

Reviewed-by: Steven Liu <liuqi05@kuaishou.com>

2021-06-10 19:54:03 +08:00

cmdutils.c

avdevice/avdevice: Constify av_*_device_next API

2021-04-27 10:43:14 -03:00

cmdutils.h

fftools: Switch to const AVCodec * where possible

2021-03-02 08:20:10 +01:00

ffmpeg_filter.c

libavresample: Remove deprecated library

2021-04-27 10:43:13 -03:00

ffmpeg_hw.c

ffmpeg: Don't require a known device to pass a frames context to an encoder