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forgotten libmpeg2 postprocessing

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12936 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
henry 2004-08-02 13:09:17 +00:00
parent ff1f7226f1
commit 267c4e26d3
4 changed files with 20 additions and 0 deletions
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11
libmpcodecs/vd_libmpeg2.c
View File

@ -154,6 +154,17 @@ static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
else mpi->fields &= ~MP_IMGFIELD_REPEAT_FIRST;
mpi->fields |= MP_IMGFIELD_ORDERED;
#ifdef MPEG12_POSTPROC
if(!mpi->qscale){
mpi->qstride=(info->sequence->picture_width+15)>>4;
mpi->qscale=malloc(mpi->qstride*((info->sequence->picture_height+15)>>4));
}
mpeg2dec->decoder.quant_store=mpi->qscale;
mpeg2dec->decoder.quant_stride=mpi->qstride;
mpi->pict_type=type; // 1->I, 2->P, 3->B
mpi->qscale_type= 1;
#endif
if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
!(mpi->flags&MP_IMGFLAG_DIRECT)){
// nice, filter/vo likes draw_callback :)

1
libmpeg2/header.c
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@ -803,6 +803,7 @@ static void prescale (mpeg2dec_t * mpeg2dec, int index)
mpeg2dec->scaled[index] = mpeg2dec->q_scale_type;
for (i = 0; i < 32; i++) {
k = mpeg2dec->q_scale_type ? non_linear_scale[i] : (i << 1);
decoder->quantizer_scale = k;
for (j = 0; j < 64; j++)
decoder->quantizer_prescale[index][i][j] =
k * mpeg2dec->quantizer_matrix[index][j];

5
libmpeg2/mpeg2_internal.h
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@ -144,6 +144,11 @@ struct mpeg2_decoder_s {
int second_field;
int mpeg1;
/* for MPlayer: */
int quantizer_scale;
char* quant_store;
int quant_stride;
};
typedef struct {

3
libmpeg2/slice.c
View File

@ -1564,6 +1564,9 @@ do { \
#define NEXT_MACROBLOCK \
do { \
if(decoder->quant_store) \
decoder->quant_store[decoder->quant_stride*(decoder->v_offset>>4) \
+(decoder->offset>>4)] = decoder->quantizer_scale; \
decoder->offset += 16; \
if (decoder->offset == decoder->width) { \
do { /* just so we can use the break statement */ \