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libx264: introduce slice-max-size option

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Yet another option useful for low latency streaming.
This commit is contained in:
Luca Barbato 2011-09-16 04:30:10 +02:00
parent b59efc9434
commit 3a78fb57de
1 changed files with 5 additions and 0 deletions
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5
libavcodec/libx264.c
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@ -64,6 +64,7 @@ typedef struct X264Context {
float cplxblur;
char *partitions;
int direct_pred;
int slice_max_size;
} X264Context;
static void X264_log(void *p, int level, const char *fmt, va_list args)
@ -390,6 +391,9 @@ static av_cold int X264_init(AVCodecContext *avctx)
if (x4->direct_pred >= 0)
x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
if (x4->slice_max_size >= 0)
x4->params.i_slice_max_size = x4->slice_max_size;
if (x4->fastfirstpass)
x264_param_apply_fastfirstpass(&x4->params);
@ -496,6 +500,7 @@ static const AVOption options[] = {
{ "spatial", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
{ "temporal", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
{ "auto", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
{ "slice-max-size","Constant quantization parameter rate control method",OFFSET(slice_max_size), FF_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
{ NULL },
};