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ffmpeg.wasm-core
Commit 8d3348c2 authored by Anton Khirnov's avatar Anton Khirnov
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snowenc: don't abuse input picture for storing information.

parent 7340008f
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Showing with 22 additions and 23 deletions
libavcodec/snowenc.c
View file @ 8d3348c2
......@@ -1604,6 +1604,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
SnowContext *s = avctx->priv_data;
RangeCoder * const c= &s->c;
AVFrame *pict = data;
AVFrame *pic = &s->new_picture;
const int width= s->avctx->width;
const int height= s->avctx->height;
int level, orientation, plane_index, i, y;
......@@ -1624,27 +1625,25 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
s->m.picture_number= avctx->frame_number;
if(avctx->flags&CODEC_FLAG_PASS2){
s->m.pict_type =
pict->pict_type= s->m.rc_context.entry[avctx->frame_number].new_pict_type;
s->keyframe= pict->pict_type==AV_PICTURE_TYPE_I;
s->m.pict_type = pic->pict_type = s->m.rc_context.entry[avctx->frame_number].new_pict_type;
s->keyframe = pic->pict_type == AV_PICTURE_TYPE_I;
if(!(avctx->flags&CODEC_FLAG_QSCALE)) {
pict->quality= ff_rate_estimate_qscale(&s->m, 0);
if (pict->quality < 0)
pic->quality = ff_rate_estimate_qscale(&s->m, 0);
if (pic->quality < 0)
return -1;
}
}else{
s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0;
s->m.pict_type=
pict->pict_type= s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
s->m.pict_type = pic->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
}
if(s->pass1_rc && avctx->frame_number == 0)
pict->quality= 2*FF_QP2LAMBDA;
if(pict->quality){
s->qlog= qscale2qlog(pict->quality);
s->lambda = pict->quality * 3/2;
pic->quality = 2*FF_QP2LAMBDA;
if (pic->quality) {
s->qlog = qscale2qlog(pic->quality);
s->lambda = pic->quality * 3/2;
}
if(s->qlog < 0 || (!pict->quality && (avctx->flags & CODEC_FLAG_QSCALE))){
if (s->qlog < 0 || (!pic->quality && (avctx->flags & CODEC_FLAG_QSCALE))) {
s->qlog= LOSSLESS_QLOG;
s->lambda = 0;
}//else keep previous frame's qlog until after motion estimation
......@@ -1654,7 +1653,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
s->m.current_picture_ptr= &s->m.current_picture;
s->m.last_picture.f.pts = s->m.current_picture.f.pts;
s->m.current_picture.f.pts = pict->pts;
if(pict->pict_type == AV_PICTURE_TYPE_P){
if(pic->pict_type == AV_PICTURE_TYPE_P){
int block_width = (width +15)>>4;
int block_height= (height+15)>>4;
int stride= s->current_picture.linesize[0];
......@@ -1679,7 +1678,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
s->m.mb_stride= s->m.mb_width+1;
s->m.b8_stride= 2*s->m.mb_width+1;
s->m.f_code=1;
s->m.pict_type= pict->pict_type;
s->m.pict_type = pic->pict_type;
s->m.me_method= s->avctx->me_method;
s->m.me.scene_change_score=0;
s->m.flags= s->avctx->flags;
......@@ -1703,13 +1702,13 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
redo_frame:
if(pict->pict_type == AV_PICTURE_TYPE_I)
if (pic->pict_type == AV_PICTURE_TYPE_I)
s->spatial_decomposition_count= 5;
else
s->spatial_decomposition_count= 5;
s->m.pict_type = pict->pict_type;
s->qbias= pict->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
s->m.pict_type = pic->pict_type;
s->qbias = pic->pict_type == AV_PICTURE_TYPE_P ? 2 : 0;
ff_snow_common_init_after_header(avctx);
......@@ -1742,12 +1741,12 @@ redo_frame:
predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
if( plane_index==0
&& pict->pict_type == AV_PICTURE_TYPE_P
&& pic->pict_type == AV_PICTURE_TYPE_P
&& !(avctx->flags&CODEC_FLAG_PASS2)
&& s->m.me.scene_change_score > s->avctx->scenechange_threshold){
ff_init_range_encoder(c, buf, buf_size);
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
pict->pict_type= AV_PICTURE_TYPE_I;
pic->pict_type= AV_PICTURE_TYPE_I;
s->keyframe=1;
s->current_picture.key_frame=1;
goto redo_frame;
......@@ -1773,7 +1772,7 @@ redo_frame:
ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
if(s->pass1_rc && plane_index==0){
int delta_qlog = ratecontrol_1pass(s, pict);
int delta_qlog = ratecontrol_1pass(s, pic);
if (delta_qlog <= INT_MIN)
return -1;
if(delta_qlog){
......@@ -1793,7 +1792,7 @@ redo_frame:
if(!QUANTIZE2)
quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
if(orientation==0)
decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == AV_PICTURE_TYPE_P, 0);
decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
assert(b->parent==NULL || b->parent->stride == b->stride*2);
if(orientation==0)
......@@ -1820,7 +1819,7 @@ redo_frame:
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
}else{
//ME/MC only
if(pict->pict_type == AV_PICTURE_TYPE_I){
if(pic->pict_type == AV_PICTURE_TYPE_I){
for(y=0; y<h; y++){
for(x=0; x<w; x++){
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]=
......@@ -1859,7 +1858,7 @@ redo_frame:
s->m.p_tex_bits = s->m.frame_bits - s->m.misc_bits - s->m.mv_bits;
s->m.current_picture.f.display_picture_number =
s->m.current_picture.f.coded_picture_number = avctx->frame_number;
s->m.current_picture.f.quality = pict->quality;
s->m.current_picture.f.quality = pic->quality;
s->m.total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
if(s->pass1_rc)
if (ff_rate_estimate_qscale(&s->m, 0) < 0)
......
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