xvid ratecontrol support

Originally committed as revision 4894 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-01-24 21:57:26 +00:00
parent 767b49a56e
commit 64b7c5b6f6
5 changed files with 165 additions and 5 deletions

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@ -283,6 +283,7 @@ endif
ifeq ($(CONFIG_XVID),yes)
OBJS+= xvidff.o
OBJS+= xvid_rc.o
endif
ifeq ($(CONFIG_X264),yes)

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@ -892,6 +892,8 @@ typedef struct AVCodecContext {
/** obsolete FIXME remove */
int rc_strategy;
#define FF_RC_STRATEGY_XVID 1
int b_frame_strategy;
/**

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@ -83,12 +83,14 @@ typedef struct RateControlEntry{
int i_tex_bits;
int p_tex_bits;
int misc_bits;
int header_bits;
uint64_t expected_bits;
int new_pict_type;
float new_qscale;
int mc_mb_var_sum;
int mb_var_sum;
int i_count;
int skip_count;
int f_code;
int b_code;
}RateControlEntry;
@ -116,6 +118,9 @@ typedef struct RateControlContext{
uint64_t qscale_sum[5];
int frame_count[5];
int last_non_b_pict_type;
void *non_lavc_opaque; ///< context for non lavc rc code (for example xvid)
float dry_run_qscale; ///< for xvid rc
}RateControlContext;
/**
@ -983,4 +988,8 @@ double ff_eval(char *s, double *const_value, const char **const_name,
int ff_vbv_update(MpegEncContext *s, int frame_size);
void ff_get_2pass_fcode(MpegEncContext *s);
int ff_xvid_rate_control_init(MpegEncContext *s);
void ff_xvid_rate_control_uninit(MpegEncContext *s);
float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run);
#endif /* AVCODEC_MPEGVIDEO_H */

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@ -38,10 +38,10 @@ static int init_pass2(MpegEncContext *s);
static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_factor, int frame_num);
void ff_write_pass1_stats(MpegEncContext *s){
snprintf(s->avctx->stats_out, 256, "in:%d out:%d type:%d q:%d itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d;\n",
snprintf(s->avctx->stats_out, 256, "in:%d out:%d type:%d q:%d itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d skipcount:%d hbits:%d;\n",
s->current_picture_ptr->display_picture_number, s->current_picture_ptr->coded_picture_number, s->pict_type,
s->current_picture.quality, s->i_tex_bits, s->p_tex_bits, s->mv_bits, s->misc_bits,
s->f_code, s->b_code, s->current_picture.mc_mb_var_sum, s->current_picture.mb_var_sum, s->i_count);
s->f_code, s->b_code, s->current_picture.mc_mb_var_sum, s->current_picture.mb_var_sum, s->i_count, s->skip_count, s->header_bits);
}
int ff_rate_control_init(MpegEncContext *s)
@ -107,16 +107,21 @@ int ff_rate_control_init(MpegEncContext *s)
assert(picture_number < rcc->num_entries);
rce= &rcc->entry[picture_number];
e+=sscanf(p, " in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d",
e+=sscanf(p, " in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d skipcount:%d hbits:%d",
&rce->pict_type, &rce->qscale, &rce->i_tex_bits, &rce->p_tex_bits, &rce->mv_bits, &rce->misc_bits,
&rce->f_code, &rce->b_code, &rce->mc_mb_var_sum, &rce->mb_var_sum, &rce->i_count);
if(e!=12){
&rce->f_code, &rce->b_code, &rce->mc_mb_var_sum, &rce->mb_var_sum, &rce->i_count, &rce->skip_count, &rce->header_bits);
if(e!=14){
av_log(s->avctx, AV_LOG_ERROR, "statistics are damaged at line %d, parser out=%d\n", i, e);
return -1;
}
p= next;
}
//FIXME maybe move to end
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
return ff_xvid_rate_control_init(s);
if(init_pass2(s) < 0) return -1;
}
@ -181,6 +186,9 @@ void ff_rate_control_uninit(MpegEncContext *s)
emms_c();
av_freep(&rcc->entry);
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
ff_xvid_rate_control_uninit(s);
}
static inline double qp2bits(RateControlEntry *rce, double qp){
@ -640,6 +648,9 @@ float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run)
Picture * const pic= &s->current_picture;
emms_c();
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
return ff_xvid_rate_estimate_qscale(s, dry_run);
get_qminmax(&qmin, &qmax, s, pict_type);
fps= 1/av_q2d(s->avctx->time_base);

137
libavcodec/xvid_rc.c Normal file
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@ -0,0 +1,137 @@
/*
* xvid Rate control wrapper for lavc video encoders
*
* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <xvid.h>
#include <unistd.h>
#include "avcodec.h"
//#include "dsputil.h"
#include "mpegvideo.h"
#undef NDEBUG
#include <assert.h>
extern unsigned int xvid_debug;
int ff_xvid_rate_control_init(MpegEncContext *s){
char *tmp_name;
int fd, i;
xvid_plg_create_t xvid_plg_create;
xvid_plugin_2pass2_t xvid_2pass2;
//xvid_debug=-1;
tmp_name= av_strdup("/tmp/xvidrc.XXXXXX");
fd = mkstemp(tmp_name);
if(fd < 0){
strcpy(tmp_name, "./xvidrc.XXXXXX");
fd = mkstemp(tmp_name);
}
for(i=0; i<s->rc_context.num_entries - s->max_b_frames; i++){
static const char *frame_types = " ipbs";
char tmp[256];
RateControlEntry *rce;
rce= &s->rc_context.entry[i];
snprintf(tmp, sizeof(tmp), "%c %d %d %d %d %d %d\n",
frame_types[rce->pict_type], (int)lrintf(rce->qscale / FF_QP2LAMBDA), rce->i_count, s->mb_num - rce->i_count - rce->skip_count,
rce->skip_count, (rce->i_tex_bits + rce->p_tex_bits + rce->mv_bits + rce->misc_bits+7)/8, (rce->header_bits+7)/8);
write(fd, tmp, strlen(tmp));
}
close(fd);
memset(&xvid_2pass2, 0, sizeof(xvid_2pass2));
xvid_2pass2.version= XVID_MAKE_VERSION(1,1,0);
xvid_2pass2.filename= tmp_name;
xvid_2pass2.bitrate= s->avctx->bit_rate;
xvid_2pass2.vbv_size= s->avctx->rc_buffer_size;
xvid_2pass2.vbv_maxrate= s->avctx->rc_max_rate;
xvid_2pass2.vbv_initial= s->avctx->rc_initial_buffer_occupancy;
memset(&xvid_plg_create, 0, sizeof(xvid_plg_create));
xvid_plg_create.version= XVID_MAKE_VERSION(1,1,0);
xvid_plg_create.fbase= s->avctx->time_base.den;
xvid_plg_create.fincr= s->avctx->time_base.num;
xvid_plg_create.param= &xvid_2pass2;
return xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, &s->rc_context.non_lavc_opaque);
}
float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
xvid_plg_data_t xvid_plg_data;
memset(&xvid_plg_data, 0, sizeof(xvid_plg_data));
xvid_plg_data.version= XVID_MAKE_VERSION(1,1,0);
xvid_plg_data.width = s->width;
xvid_plg_data.height= s->height;
xvid_plg_data.mb_width = s->mb_width;
xvid_plg_data.mb_height= s->mb_height;
xvid_plg_data.fbase= s->avctx->time_base.den;
xvid_plg_data.fincr= s->avctx->time_base.num;
xvid_plg_data.min_quant[0]= s->avctx->qmin;
xvid_plg_data.min_quant[1]= s->avctx->qmin;
xvid_plg_data.min_quant[2]= s->avctx->qmin; //FIXME i/b factor & offset
xvid_plg_data.max_quant[0]= s->avctx->qmax;
xvid_plg_data.max_quant[1]= s->avctx->qmax;
xvid_plg_data.max_quant[2]= s->avctx->qmax; //FIXME i/b factor & offset
xvid_plg_data.bquant_offset = s->avctx->b_quant_offset;
xvid_plg_data.bquant_ratio = 100 * s->avctx->b_quant_factor;
#if 0
xvid_plg_data.stats.hlength= X
#endif
if(!s->rc_context.dry_run_qscale){
if(s->picture_number){
xvid_plg_data.length=
xvid_plg_data.stats.length= (s->frame_bits + 7)/8;
xvid_plg_data.frame_num= s->picture_number - 1;
xvid_plg_data.quant= s->qscale;
xvid_plg_data.type= s->last_pict_type;
if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_AFTER, &xvid_plg_data, NULL)){
av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_AFTER, ...) FAILED\n");
return -1;
}
}
xvid_plg_data.frame_num= s->picture_number;
xvid_plg_data.quant= 0;
if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_BEFORE, &xvid_plg_data, NULL)){
av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_BEFORE, ...) FAILED\n");
return -1;
}
s->rc_context.dry_run_qscale= xvid_plg_data.quant;
}
xvid_plg_data.quant= s->rc_context.dry_run_qscale;
if(!dry_run)
s->rc_context.dry_run_qscale= 0;
return xvid_plg_data.quant * FF_QP2LAMBDA;
}
void ff_xvid_rate_control_uninit(MpegEncContext *s){
xvid_plg_destroy_t xvid_plg_destroy;
xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_DESTROY, &xvid_plg_destroy, NULL);
}