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Code Issues Releases Activity

cleanup

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Originally committed as revision 2605 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-12-13 20:41:33 +00:00
parent 0c11692a1d
commit d55f7b6521
4 changed files with 12 additions and 21 deletions
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3
libavcodec/h263dec.c
View File

@ -85,7 +85,6 @@ int ff_h263_decode_init(AVCodecContext *avctx)
s->msmpeg4_version=5;
break;
case CODEC_ID_H263I:
s->h263_intel = 1;
break;
case CODEC_ID_FLV1:
s->h263_flv = 1;
@ -460,7 +459,7 @@ retry:
if(s->flags& CODEC_FLAG_LOW_DELAY)
s->low_delay=1;
} else if (s->h263_intel) {
} else if (s->codec_id == CODEC_ID_H263I) {
ret = intel_h263_decode_picture_header(s);
} else if (s->h263_flv) {
ret = flv_h263_decode_picture_header(s);

9
libavcodec/mpegvideo.c
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@ -634,7 +634,6 @@ int MPV_encode_init(AVCodecContext *avctx)
avctx->pix_fmt = PIX_FMT_YUV420P; // FIXME
s->bit_rate = avctx->bit_rate;
s->bit_rate_tolerance = avctx->bit_rate_tolerance;
s->width = avctx->width;
s->height = avctx->height;
if(avctx->gop_size > 600){
@ -642,13 +641,9 @@ int MPV_encode_init(AVCodecContext *avctx)
avctx->gop_size=600;
}
s->gop_size = avctx->gop_size;
s->max_qdiff= avctx->max_qdiff;
s->qcompress= avctx->qcompress;
s->qblur= avctx->qblur;
s->avctx = avctx;
s->flags= avctx->flags;
s->max_b_frames= avctx->max_b_frames;
s->b_frame_strategy= avctx->b_frame_strategy;
s->codec_id= avctx->codec->id;
s->luma_elim_threshold = avctx->luma_elim_threshold;
s->chroma_elim_threshold= avctx->chroma_elim_threshold;
@ -1683,10 +1678,10 @@ static void select_input_picture(MpegEncContext *s){
av_log(s->avctx, AV_LOG_ERROR, "warning, too many bframes in a row\n");
b_frames = s->max_b_frames;
}
}else if(s->b_frame_strategy==0){
}else if(s->avctx->b_frame_strategy==0){
b_frames= s->max_b_frames;
while(b_frames && !s->input_picture[b_frames]) b_frames--;
}else if(s->b_frame_strategy==1){
}else if(s->avctx->b_frame_strategy==1){
for(i=1; i<s->max_b_frames+1; i++){
if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
s->input_picture[i]->b_frame_score=

6
libavcodec/mpegvideo.h
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@ -236,25 +236,19 @@ typedef struct MpegEncContext {
int gop_size;
int intra_only; ///< if true, only intra pictures are generated
int bit_rate; ///< wanted bit rate
int bit_rate_tolerance; ///< amount of +- bits (>0)
enum OutputFormat out_format; ///< output format
int h263_pred; ///< use mpeg4/h263 ac/dc predictions
/* the following codec id fields are deprecated in favor of codec_id */
int h263_plus; ///< h263 plus headers
int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
int h263_intel; ///< use I263 intel h263 header
int h263_flv; ///< use flv h263 header
int codec_id; /* see CODEC_ID_xxx */
int fixed_qscale; ///< fixed qscale if non zero
float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
int max_qdiff; ///< max qscale difference between frames
int encoding; ///< true if we are encoding (vs decoding)
int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
int max_b_frames; ///< max number of b-frames for encoding
int b_frame_strategy;
int luma_elim_threshold;
int chroma_elim_threshold;
int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)

15
libavcodec/ratecontrol.c
View File

@ -236,6 +236,7 @@ int ff_vbv_update(MpegEncContext *s, int frame_size){
*/
static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_factor, int frame_num){
RateControlContext *rcc= &s->rc_context;
AVCodecContext *a= s->avctx;
double q, bits;
const int pict_type= rce->new_pict_type;
const double mb_num= s->mb_num;
@ -256,7 +257,7 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f
rce->pict_type == P_TYPE,
rce->pict_type == B_TYPE,
rcc->qscale_sum[pict_type] / (double)rcc->frame_count[pict_type],
s->qcompress,
a->qcompress,
/* rcc->last_qscale_for[I_TYPE],
rcc->last_qscale_for[P_TYPE],
rcc->last_qscale_for[B_TYPE],
@ -577,6 +578,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
int picture_number= s->picture_number;
int64_t wanted_bits;
RateControlContext *rcc= &s->rc_context;
AVCodecContext *a= s->avctx;
RateControlEntry local_rce, *rce;
double bits;
double rate_factor;
@ -606,7 +608,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
}
diff= s->total_bits - wanted_bits;
br_compensation= (s->bit_rate_tolerance - diff)/s->bit_rate_tolerance;
br_compensation= (a->bit_rate_tolerance - diff)/a->bit_rate_tolerance;
if(br_compensation<=0.0) br_compensation=0.001;
var= pict_type == I_TYPE ? pic->mb_var_sum : pic->mc_mb_var_sum;
@ -658,8 +660,8 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
assert(q>0.0);
if(pict_type==P_TYPE || s->intra_only){ //FIXME type dependant blur like in 2-pass
rcc->short_term_qsum*=s->qblur;
rcc->short_term_qcount*=s->qblur;
rcc->short_term_qsum*=a->qblur;
rcc->short_term_qcount*=a->qblur;
rcc->short_term_qsum+= q;
rcc->short_term_qcount++;
@ -711,6 +713,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s)
static int init_pass2(MpegEncContext *s)
{
RateControlContext *rcc= &s->rc_context;
AVCodecContext *a= s->avctx;
int i;
double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
double complexity[5]={0,0,0,0,0}; // aproximate bits at quant=1
@ -722,7 +725,7 @@ static int init_pass2(MpegEncContext *s)
double rate_factor=0;
double step;
//int last_i_frame=-10000000;
const int filter_size= (int)(s->qblur*4) | 1;
const int filter_size= (int)(a->qblur*4) | 1;
double expected_bits;
double *qscale, *blured_qscale;
@ -803,7 +806,7 @@ static int init_pass2(MpegEncContext *s)
for(j=0; j<filter_size; j++){
int index= i+j-filter_size/2;
double d= index-i;
double coeff= s->qblur==0 ? 1.0 : exp(-d*d/(s->qblur * s->qblur));
double coeff= a->qblur==0 ? 1.0 : exp(-d*d/(a->qblur * a->qblur));
if(index < 0 || index >= rcc->num_entries) continue;
if(pict_type != rcc->entry[index].new_pict_type) continue;