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lavc: make rc_buffer_aggressivity/rc_initial_cplx into private options of mpegvideo encoders

tags/n2.5
Anton Khirnov 12 years ago
parent
a75c2eb25a
commit
66a68ddd1a
5 changed files with 27 additions and 13 deletions
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  1. +7
    -5
      libavcodec/avcodec.h
  2. +5
    -1
      libavcodec/mpegvideo.h
  3. +4
    -0
      libavcodec/mpegvideo_enc.c
  4. +6
    -2
      libavcodec/options_table.h
  5. +5
    -5
      libavcodec/ratecontrol.c

+ 7
- 5
libavcodec/avcodec.h View File

@@ -2132,14 +2132,16 @@ typedef struct AVCodecContext {
*/
int rc_min_rate;

float rc_buffer_aggressivity;

#if FF_API_MPV_OPT
/**
* initial complexity for pass1 ratecontrol
* - encoding: Set by user.
* - decoding: unused
* @deprecated use encoder private options instead
*/
attribute_deprecated
float rc_buffer_aggressivity;

attribute_deprecated
float rc_initial_cplx;
#endif

/**
* Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.


+ 5
- 1
libavcodec/mpegvideo.h View File

@@ -637,6 +637,8 @@ typedef struct MpegEncContext {
float rc_qsquish;
float rc_qmod_amp;
int rc_qmod_freq;
float rc_initial_cplx;
float rc_buffer_aggressivity;

char *rc_eq;

@@ -693,7 +695,9 @@ typedef struct MpegEncContext {
"defined in the section 'Expression Evaluation', the following functions are available: " \
"bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
"fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS },
FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
{"rc_init_cplx", "initial complexity for 1-pass encoding", FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
{"rc_buf_aggressivity", "currently useless", FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \

extern const AVOption ff_mpv_generic_options[];



+ 4
- 0
libavcodec/mpegvideo_enc.c View File

@@ -830,6 +830,10 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
s->rc_qmod_amp = avctx->rc_qmod_amp;
if (avctx->rc_qmod_freq)
s->rc_qmod_freq = avctx->rc_qmod_freq;
if (avctx->rc_buffer_aggressivity != 1.0)
s->rc_buffer_aggressivity = avctx->rc_buffer_aggressivity;
if (avctx->rc_initial_cplx != 0.0)
s->rc_initial_cplx = avctx->rc_initial_cplx;

if (avctx->rc_eq) {
av_freep(&s->rc_eq);


+ 6
- 2
libavcodec/options_table.h View File

@@ -176,10 +176,14 @@ static const AVOption avcodec_options[] = {
{"minrate", "Set minimum bitrate tolerance (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise.",
OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E},
#if FF_API_MPV_OPT
{"rc_buf_aggressivity", "deprecated, use encoder private options instead", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E},
#endif
{"i_qfactor", "QP factor between P- and I-frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E},
{"i_qoffset", "QP offset between P- and I-frames", OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, -FLT_MAX, FLT_MAX, V|E},
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
#if FF_API_MPV_OPT
{"rc_init_cplx", "deprecated, use encoder private options instead", OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
#endif
{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
{"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
{"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},


+ 5
- 5
libavcodec/ratecontrol.c View File

@@ -236,9 +236,9 @@ av_cold int ff_rate_control_init(MpegEncContext *s)
return -1;
}
/* init stuff with the user specified complexity */
if (s->avctx->rc_initial_cplx) {
if (s->rc_initial_cplx) {
for (i = 0; i < 60 * 30; i++) {
double bits = s->avctx->rc_initial_cplx * (i / 10000.0 + 1.0) * s->mb_num;
double bits = s->rc_initial_cplx * (i / 10000.0 + 1.0) * s->mb_num;
RateControlEntry rce;

if (i % ((s->gop_size + 3) / 4) == 0)
@@ -516,7 +516,7 @@ static double modify_qscale(MpegEncContext *s, RateControlEntry *rce,
d = 1.0;
else if (d < 0.0001)
d = 0.0001;
q *= pow(d, 1.0 / s->avctx->rc_buffer_aggressivity);
q *= pow(d, 1.0 / s->rc_buffer_aggressivity);

q_limit = bits2qp(rce,
FFMAX((min_rate - buffer_size + rcc->buffer_index) *
@@ -536,7 +536,7 @@ static double modify_qscale(MpegEncContext *s, RateControlEntry *rce,
d = 1.0;
else if (d < 0.0001)
d = 0.0001;
q /= pow(d, 1.0 / s->avctx->rc_buffer_aggressivity);
q /= pow(d, 1.0 / s->rc_buffer_aggressivity);

q_limit = bits2qp(rce,
FFMAX(rcc->buffer_index *
@@ -552,7 +552,7 @@ static double modify_qscale(MpegEncContext *s, RateControlEntry *rce,
}
av_dlog(s, "q:%f max:%f min:%f size:%f index:%f agr:%f\n",
q, max_rate, min_rate, buffer_size, rcc->buffer_index,
s->avctx->rc_buffer_aggressivity);
s->rc_buffer_aggressivity);
if (s->rc_qsquish == 0.0 || qmin == qmax) {
if (q < qmin)
q = qmin;


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