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ffmpeg/qsv: fix QSV-accelerated transcode performance drop issue. 

the merge commit 1b04ea1 "avconv: create simple filtergraphs earlier"
will init the filtergraphs earlier, then init the QSV transcode can't
suppose the nb_filters's value, else lead to the QSV transcode performance
drop.

Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Reviewed-by: Ivan Uskov <ivan.uskov@nablet.com
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jun Zhao 2016-08-11 15:34:01 +08:00 committed by Michael Niedermayer
parent a2c40931c8
commit 46bfc1562f
1 changed files with 1 additions and 2 deletions
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3
ffmpeg_qsv.c
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@ -210,8 +210,7 @@ int qsv_transcode_init(OutputStream *ost)
/* check if the decoder supports QSV and the output only goes to this stream */
ist = input_streams[ost->source_index];
if (ist->nb_filters || ist->hwaccel_id != HWACCEL_QSV ||
!ist->dec || !ist->dec->pix_fmts)
if (ist->hwaccel_id != HWACCEL_QSV || !ist->dec || !ist->dec->pix_fmts)
return 0;
for (pix_fmt = ist->dec->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++)
if (*pix_fmt == AV_PIX_FMT_QSV)