[FFmpeg-devel] [PATCH] Improved the performance of 1 decode + N filter graphs and adaptive bitrate.

[Michael Niedermayer]

On Sat, Dec 29, 2018 at 04:09:21PM -0500, Shaofei Wang wrote:
> With new option "-abr_pipeline"
> It enabled multiple filter graph concurrency, which bring obvious
> improvement in some 1:N scenarios by CPU and GPU acceleration
> 
> Below are some test cases and comparison as reference.
> (Hardware platform: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz)
> (Software: Intel iHD driver - 16.9.00100, CentOS 7)

breaks build on mingw64

CC	fftools/ffmpeg_filter.o
src/fftools/ffmpeg_filter.c: In function ‘init_simple_filtergraph’:
src/fftools/ffmpeg_filter.c:231:39: error: incompatible types when assigning to type ‘pthread_t’ from type ‘int’
             ist->filters[i]->f_thread = 0;
                                       ^
make: *** [fftools/ffmpeg_filter.o] Error 1
CC	fftools/ffmpeg.o
src/fftools/ffmpeg.c: In function ‘pipeline_reap_filters’:
src/fftools/ffmpeg.c:1534:5: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     OutputStream *ost = output_streams[i];
     ^
src/fftools/ffmpeg.c: In function ‘do_streamcopy’:
src/fftools/ffmpeg.c:2179:5: warning: ‘av_copy_packet_side_data’ is deprecated (declared at src/libavcodec/avcodec.h:4424) [-Wdeprecated-declarations]
     av_copy_packet_side_data(&opkt, pkt);
     ^
src/fftools/ffmpeg.c: In function ‘filter_pipeline’:
src/fftools/ffmpeg.c:2412:5: warning: ‘return’ with no value, in function returning non-void [enabled by default]
     return;
     ^
src/fftools/ffmpeg.c: In function ‘send_frame_to_filters’:
src/fftools/ffmpeg.c:2451:42: error: invalid operands to binary == (have ‘pthread_t’ and ‘int’)
             if(ist->filters[i]->f_thread == 0) {
                                          ^
src/fftools/ffmpeg.c: In function ‘init_output_stream’:
src/fftools/ffmpeg.c:3754:9: warning: ‘avcodec_copy_context’ is deprecated (declared at src/libavcodec/avcodec.h:4196) [-Wdeprecated-declarations]
         ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
         ^
src/fftools/ffmpeg.c:3754:9: warning: ‘codec’ is deprecated (declared at src/libavformat/avformat.h:878) [-Wdeprecated-declarations]
src/fftools/ffmpeg.c:3800:9: warning: ‘codec’ is deprecated (declared at src/libavformat/avformat.h:878) [-Wdeprecated-declarations]
         ost->st->codec->codec= ost->enc_ctx->codec;
         ^
src/fftools/ffmpeg.c: In function ‘check_keyboard_interaction’:
src/fftools/ffmpeg.c:4181:13: warning: ‘codec’ is deprecated (declared at src/libavformat/avformat.h:878) [-Wdeprecated-declarations]
             debug = input_streams[0]->st->codec->debug<<1;
             ^
src/fftools/ffmpeg.c:4204:13: warning: ‘codec’ is deprecated (declared at src/libavformat/avformat.h:878) [-Wdeprecated-declarations]
             input_streams[i]->st->codec->debug = debug;
             ^
make: *** [fftools/ffmpeg.o] Error 1
make: Target `all' not remade because of errors.



[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In a rich man's house there is no place to spit but his face.
-- Diogenes of Sinope
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