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avcodec/snowenc: Support setting the iterative dia size separately

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-24 20:50:55 +02:00
parent 21bfeec27f
commit 4bd99f715d
3 changed files with 13 additions and 1 deletions
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9
doc/encoders.texi
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@ -1357,6 +1357,15 @@ allows to store non-rgb pix_fmts.
@end table
@section snow
@subsection Options
@table @option
@item iterative_dia_size
dia size for the iterative motion estimation
@end table
@section libtheora
libtheora Theora encoder wrapper.

1
libavcodec/snow.h
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@ -177,6 +177,7 @@ typedef struct SnowContext{
int no_bitstream;
int intra_penalty;
int motion_est;
int iterative_dia_size;
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)

4
libavcodec/snowenc.c
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@ -1120,8 +1120,9 @@ static void iterative_me(SnowContext *s){
do{
int newx = block->mx;
int newy = block->my;
int dia_size = s->iterative_dia_size ? s->iterative_dia_size : FFMAX(s->avctx->dia_size, 1);
dia_change=0;
for(i=0; i<FFMAX(s->avctx->dia_size, 1); i++){
for(i=0; i < dia_size; i++){
for(j=0; j<i; j++){
dia_change |= check_block_inter(s, mb_x, mb_y, newx+4*(i-j), newy+(4*j), obmc_edged, &best_rd);
dia_change |= check_block_inter(s, mb_x, mb_y, newx-4*(i-j), newy-(4*j), obmc_edged, &best_rd);
@ -1898,6 +1899,7 @@ static const AVOption options[] = {
{ "memc_only", "Only do ME/MC (I frames -> ref, P frame -> ME+MC).", OFFSET(memc_only), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ "no_bitstream", "Skip final bitstream writeout.", OFFSET(no_bitstream), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ "intra_penalty", "Penalty for intra blocks in block decission", OFFSET(intra_penalty), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ "iterative_dia_size", "Dia size for the iterative ME", OFFSET(iterative_dia_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ NULL },
};