virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

various fixes for xvid_rc

Browse Source 
Originally committed as revision 5182 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-03-19 11:49:37 +00:00
parent dc8b01d166
commit 83378d0de5
2 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libavcodec/mpegvideo.h
View File

@ -123,6 +123,7 @@ typedef struct RateControlContext{
void *non_lavc_opaque; ///< context for non lavc rc code (for example xvid)
float dry_run_qscale; ///< for xvid rc
int last_picture_number; ///< for xvid rc
}RateControlContext;
/**

23
libavcodec/xvid_rc.c
View File

@ -44,7 +44,7 @@ int ff_xvid_rate_control_init(MpegEncContext *s){
fd = mkstemp(tmp_name);
}
for(i=0; i<s->rc_context.num_entries - s->max_b_frames; i++){
for(i=0; i<s->rc_context.num_entries; i++){
static const char *frame_types = " ipbs";
char tmp[256];
RateControlEntry *rce;
@ -53,8 +53,9 @@ int ff_xvid_rate_control_init(MpegEncContext *s){
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);
rce->skip_count, (rce->i_tex_bits + rce->p_tex_bits + rce->misc_bits+7)/8, (rce->header_bits+rce->mv_bits+7)/8);
//av_log(NULL, AV_LOG_ERROR, "%s\n", tmp);
write(fd, tmp, strlen(tmp));
}
@ -74,7 +75,11 @@ int ff_xvid_rate_control_init(MpegEncContext *s){
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);
if(xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, &s->rc_context.non_lavc_opaque)<0){
av_log(NULL, AV_LOG_ERROR, "xvid_plugin_2pass2 failed\n");
return -1;
}
return 0;
}
float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
@ -94,8 +99,8 @@ float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
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 = 100 * s->avctx->b_quant_offset;
xvid_plg_data.bquant_ratio = 100 * s->avctx->b_quant_factor;
xvid_plg_data.bquant_offset = 0; // 100 * s->avctx->b_quant_offset;
xvid_plg_data.bquant_ratio = 100; // * s->avctx->b_quant_factor;
#if 0
xvid_plg_data.stats.hlength= X
@ -105,7 +110,7 @@ float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
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.frame_num= s->rc_context.last_picture_number;
xvid_plg_data.quant= s->qscale;
xvid_plg_data.type= s->last_pict_type;
@ -114,6 +119,7 @@ float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
return -1;
}
}
s->rc_context.last_picture_number=
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)){
@ -126,7 +132,10 @@ float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
if(!dry_run)
s->rc_context.dry_run_qscale= 0;
return xvid_plg_data.quant * FF_QP2LAMBDA;
if(s->pict_type == B_TYPE) //FIXME this is not exactly identical to xvid
return xvid_plg_data.quant * FF_QP2LAMBDA * s->avctx->b_quant_factor + s->avctx->b_quant_offset;
else
return xvid_plg_data.quant * FF_QP2LAMBDA;
}
void ff_xvid_rate_control_uninit(MpegEncContext *s){