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perform init after reading the values needed for init 

fixes decoding of files with spatial_decomposition_count!=5

Originally committed as revision 10457 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-09-09 13:47:25 +00:00
parent d3de3ee2bd
commit 4f90f33ab4
1 changed files with 35 additions and 29 deletions
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64
libavcodec/snow.c
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@ -1656,7 +1656,7 @@ static void reset_contexts(SnowContext *s){ //FIXME better initial contexts
int plane_index, level, orientation;
for(plane_index=0; plane_index<3; plane_index++){
for(level=0; level<s->spatial_decomposition_count; level++){
for(level=0; level<MAX_DECOMPOSITIONS; level++){
for(orientation=level ? 1:0; orientation<4; orientation++){
memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state));
}
@ -3697,7 +3697,6 @@ static void init_qexp(void){
static int common_init(AVCodecContext *avctx){
SnowContext *s = avctx->priv_data;
int width, height;
int level, orientation, plane_index;
int i, j;
s->avctx= avctx;
@ -3745,12 +3744,6 @@ static int common_init(AVCodecContext *avctx){
if(!qexp[0])
init_qexp();
s->spatial_decomposition_count= 5;
s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
s->chroma_h_shift= 1; //FIXME XXX
s->chroma_v_shift= 1;
// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
width= s->avctx->width;
@ -3759,8 +3752,18 @@ static int common_init(AVCodecContext *avctx){
s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM));
s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this doesnt belong here
s->mv_scale= (s->avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4;
s->block_max_depth= (s->avctx->flags & CODEC_FLAG_4MV) ? 1 : 0;
for(i=0; i<MAX_REF_FRAMES; i++)
for(j=0; j<MAX_REF_FRAMES; j++)
scale_mv_ref[i][j] = 256*(i+1)/(j+1);
s->avctx->get_buffer(s->avctx, &s->mconly_picture);
return 0;
}
static int common_init_after_header(AVCodecContext *avctx){
SnowContext *s = avctx->priv_data;
int plane_index, level, orientation;
for(plane_index=0; plane_index<3; plane_index++){
int w= s->avctx->width;
@ -3773,13 +3776,6 @@ static int common_init(AVCodecContext *avctx){
s->plane[plane_index].width = w;
s->plane[plane_index].height= h;
s->plane[plane_index].diag_mc= 1;
s->plane[plane_index].htaps= 6;
s->plane[plane_index].hcoeff[0]= 40;
s->plane[plane_index].hcoeff[1]= -10;
s->plane[plane_index].hcoeff[2]= 2;
s->plane[plane_index].fast_mc= 1;
//av_log(NULL, AV_LOG_DEBUG, "%d %d\n", w, h);
for(level=s->spatial_decomposition_count-1; level>=0; level--){
for(orientation=level ? 1 : 0; orientation<4; orientation++){
@ -3807,6 +3803,8 @@ static int common_init(AVCodecContext *avctx){
if(level)
b->parent= &s->plane[plane_index].band[level-1][orientation];
//FIXME avoid this realloc
av_freep(&b->x_coeff);
b->x_coeff=av_mallocz(((b->width+1) * b->height+1)*sizeof(x_and_coeff));
}
w= (w+1)>>1;
@ -3814,18 +3812,6 @@ static int common_init(AVCodecContext *avctx){
}
}
for(i=0; i<MAX_REF_FRAMES; i++)
for(j=0; j<MAX_REF_FRAMES; j++)
scale_mv_ref[i][j] = 256*(i+1)/(j+1);
/*
width= s->width= avctx->width;
height= s->height= avctx->height;
assert(width && height);
*/
s->avctx->get_buffer(s->avctx, &s->mconly_picture);
return 0;
}
@ -3931,7 +3917,26 @@ static int encode_init(AVCodecContext *avctx)
return -1;
}
s->spatial_decomposition_count= 5;
s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
s->chroma_h_shift= 1; //FIXME XXX
s->chroma_v_shift= 1;
s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4;
s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0;
for(plane_index=0; plane_index<3; plane_index++){
s->plane[plane_index].diag_mc= 1;
s->plane[plane_index].htaps= 6;
s->plane[plane_index].hcoeff[0]= 40;
s->plane[plane_index].hcoeff[1]= -10;
s->plane[plane_index].hcoeff[2]= 2;
s->plane[plane_index].fast_mc= 1;
}
common_init(avctx);
common_init_after_header(avctx);
alloc_blocks(s);
s->version=0;
@ -4414,6 +4419,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P
decode_header(s);
common_init_after_header(avctx);
// realloc slice buffer for the case that spatial_decomposition_count changed
slice_buffer_destroy(&s->sb);