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snowenc: add no_bitstream option. 

This allows making e.g. MPlayer's -vf uspp filter about 20% faster.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger 2012-03-10 19:59:44 +01:00
parent c4e0d845e2
commit 6fe8cb7d70
2 changed files with 3 additions and 0 deletions
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1
libavcodec/snow.h
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@ -158,6 +158,7 @@ typedef struct SnowContext{
unsigned me_cache_generation;
slice_buffer sb;
int memc_only;
int no_bitstream;
MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)

2
libavcodec/snowenc.c
View File

@ -1800,6 +1800,7 @@ redo_frame:
quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
if(orientation==0)
decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
if (!s->no_bitstream)
encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
assert(b->parent==NULL || b->parent->stride == b->stride*2);
if(orientation==0)
@ -1904,6 +1905,7 @@ static av_cold int encode_end(AVCodecContext *avctx)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "memc_only", "Only do ME/MC (I frames -> ref, P frame -> ME+MC).", OFFSET(memc_only), AV_OPT_TYPE_INT, { 0 }, 0, 1, VE },
{ "no_bitstream", "Skip final bitstream writeout.", OFFSET(no_bitstream), AV_OPT_TYPE_INT, { 0 }, 0, 1, VE },
{ NULL },
};