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libx264: add 'cqp' private option.

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Deprecate corresponding global option.
This commit is contained in:
Anton Khirnov 2011-08-22 07:55:34 +02:00
parent d5dc8cc297
commit 9d508e4914
3 changed files with 13 additions and 6 deletions
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5
libavcodec/avcodec.h
View File

@ -2385,14 +2385,15 @@ typedef struct AVCodecContext {
* @deprecated use 'crf' libx264 private option
*/
attribute_deprecated float crf;
#endif
/**
* constant quantization parameter rate control method
* - encoding: Set by user.
* - decoding: unused
* @deprecated use 'cqp' libx264 private option
*/
int cqp;
attribute_deprecated int cqp;
#endif
/**
* minimum GOP size

12
libavcodec/libx264.c
View File

@ -42,6 +42,7 @@ typedef struct X264Context {
char *profile;
int fastfirstpass;
float crf;
int cqp;
} X264Context;
static void X264_log(void *p, int level, const char *fmt, va_list args)
@ -281,16 +282,18 @@ static av_cold int X264_init(AVCodecContext *avctx)
x4->params.rc.i_rc_method = X264_RC_CRF;
x4->params.rc.f_rf_constant = avctx->crf;
x4->params.rc.f_rf_constant_max = avctx->crf_max;
} else
#endif
if (avctx->cqp > -1) {
} else if (avctx->cqp > -1) {
x4->params.rc.i_rc_method = X264_RC_CQP;
x4->params.rc.i_qp_constant = avctx->cqp;
}
#endif
if (x4->crf >= 0) {
x4->params.rc.i_rc_method = X264_RC_CRF;
x4->params.rc.f_rf_constant = x4->crf;
} else if (x4->cqp >= 0) {
x4->params.rc.i_rc_method = X264_RC_CQP;
x4->params.rc.i_qp_constant = x4->cqp;
}
}
@ -343,7 +346,9 @@ static av_cold int X264_init(AVCodecContext *avctx)
avctx->has_b_frames = x4->params.i_bframe ?
x4->params.i_bframe_pyramid ? 2 : 1 : 0;
avctx->bit_rate = x4->params.rc.i_bitrate*1000;
#if FF_API_X264_GLOBAL_OPTS
avctx->crf = x4->params.rc.f_rf_constant;
#endif
x4->enc = x264_encoder_open(&x4->params);
if (!x4->enc)
@ -376,6 +381,7 @@ static const AVOption options[] = {
{ "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
{ "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), FF_OPT_TYPE_INT, { 1 }, 0, 1, VE},
{ "crf", "Select the quality for constant quality mode", OFFSET(crf), FF_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE },
{ "cqp", "Constant quantization parameter rate control method",OFFSET(cqp), FF_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
{ NULL },
};

2
libavcodec/options.c
View File

@ -377,8 +377,8 @@ static const AVOption options[]={
{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, 10, V|E},
#if FF_API_X264_GLOBAL_OPTS
{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 51, V|E},
#endif
{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E},
#endif
{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, {.dbl = 25 }, INT_MIN, INT_MAX, V|E},
{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, {.dbl = 1 }, INT_MIN, INT_MAX, V|E},
{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},