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libx265: Add crf private option 

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2015-02-17 17:04:53 -05:00
parent b920db6731
commit 8b96e8dd28
1 changed files with 12 additions and 1 deletions
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13
libavcodec/libx265.c
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@ -25,6 +25,7 @@
#endif
#include <x265.h>
#include <float.h>
#include "libavutil/internal.h"
#include "libavutil/common.h"
@ -39,6 +40,7 @@ typedef struct libx265Context {
x265_encoder *encoder;
x265_param *params;
float crf;
char *preset;
char *tune;
char *x265_opts;
@ -138,7 +140,15 @@ static av_cold int libx265_encode_init(AVCodecContext *avctx)
break;
}
if (avctx->bit_rate > 0) {
if (ctx->crf >= 0) {
char crf[6];
snprintf(crf, sizeof(crf), "%2.2f", ctx->crf);
if (x265_param_parse(ctx->params, "crf", crf) == X265_PARAM_BAD_VALUE) {
av_log(avctx, AV_LOG_ERROR, "Invalid crf: %2.2f.\n", ctx->crf);
return AVERROR(EINVAL);
}
} else if (avctx->bit_rate > 0) {
ctx->params->rc.bitrate = avctx->bit_rate / 1000;
ctx->params->rc.rateControlMode = X265_RC_ABR;
}
@ -294,6 +304,7 @@ static av_cold void libx265_encode_init_csp(AVCodec *codec)
#define OFFSET(x) offsetof(libx265Context, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "crf", "set the x265 crf", OFFSET(crf), AV_OPT_TYPE_FLOAT, { .dbl = -1 }, -1, FLT_MAX, VE },
{ "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
{ "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
{ "x265-params", "set the x265 configuration using a :-separated list of key=value parameters", OFFSET(x265_opts), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },