diff options
Diffstat (limited to 'libmpeg2')
| -rw-r--r-- | libmpeg2/slice.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libmpeg2/slice.c b/libmpeg2/slice.c index 308ff5d456..0cba9f3144 100644 --- a/libmpeg2/slice.c +++ b/libmpeg2/slice.c @@ -1569,9 +1569,18 @@ do { \ #define NEXT_MACROBLOCK \ do { \ - if(decoder->quant_store) \ + if(decoder->quant_store) { \ + if (decoder->picture_structure == TOP_FIELD) \ + decoder->quant_store[2*decoder->quant_stride*(decoder->v_offset>>4) \ + +(decoder->offset>>4)] = decoder->quantizer_scale; \ + else if (decoder->picture_structure == BOTTOM_FIELD) \ + decoder->quant_store[2*decoder->quant_stride*(decoder->v_offset>>4) \ + + decoder->quant_stride \ + +(decoder->offset>>4)] = decoder->quantizer_scale; \ + else \ 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 */ \ |