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lavc: make rc_qsquish a private option of mpegvideo encoders

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This commit is contained in:
Anton Khirnov 2013-10-27 13:51:16 +01:00
parent 6cbbf0592f
commit a6e4ce9fd5
6 changed files with 27 additions and 7 deletions
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8
libavcodec/avcodec.h
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@ -2082,13 +2082,13 @@ typedef struct AVCodecContext {
*/
int max_qdiff;
#if FF_API_MPV_OPT
/**
* ratecontrol qmin qmax limiting method
* 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
* - encoding: Set by user.
* - decoding: unused
* @deprecated use encoder private options instead
*/
attribute_deprecated
float rc_qsquish;
#endif
float rc_qmod_amp;
int rc_qmod_freq;

10
libavcodec/mpegvideo.h
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@ -628,6 +628,12 @@ typedef struct MpegEncContext {
int mpv_flags; ///< flags set by private options
int quantizer_noise_shaping;
/**
* ratecontrol qmin qmax limiting method
* 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
*/
float rc_qsquish;
/* temp buffers for rate control */
float *cplx_tab, *bits_tab;
@ -672,7 +678,9 @@ typedef struct MpegEncContext {
FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
{ "error_rate", "Simulate errors in the bitstream to test error concealment.", \
FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS},
extern const AVOption ff_mpv_generic_options[];

7
libavcodec/mpegvideo_enc.c
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@ -822,6 +822,13 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
FF_ENABLE_DEPRECATION_WARNINGS
#endif
#if FF_API_MPV_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->rc_qsquish != 0.0)
s->rc_qsquish = avctx->rc_qsquish;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (avctx->b_frame_strategy == 2) {
for (i = 0; i < s->max_b_frames + 2; i++) {
s->tmp_frames[i] = av_frame_alloc();

4
libavcodec/options_table.h
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@ -163,7 +163,9 @@ static const AVOption avcodec_options[] = {
{"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E},
#if FF_API_MPV_OPT
{"qsquish", "deprecated, use encoder private options instead", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E},
#endif
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},

2
libavcodec/ratecontrol.c
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@ -553,7 +553,7 @@ 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);
if (s->avctx->rc_qsquish == 0.0 || qmin == qmax) {
if (s->rc_qsquish == 0.0 || qmin == qmax) {
if (q < qmin)
q = qmin;
else if (q > qmax)

3
libavcodec/version.h
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@ -159,5 +159,8 @@
#ifndef FF_API_AVCTX_TIMEBASE
#define FF_API_AVCTX_TIMEBASE (LIBAVCODEC_VERSION_MAJOR < 59)
#endif
#ifndef FF_API_MPV_OPT
#define FF_API_MPV_OPT (LIBAVCODEC_VERSION_MAJOR < 59)
#endif
#endif /* AVCODEC_VERSION_H */