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h264: fix intra 16x16 mode check when using mbaff and constrained_intra_pred.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -97,12 +97,9 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h){
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}
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return 0;
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} //FIXME cleanup like ff_h264_check_intra_pred_mode
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} //FIXME cleanup like check_intra_pred_mode
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/**
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
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static int check_intra_pred_mode(H264Context *h, int mode, int is_chroma){
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MpegEncContext * const s = &h->s;
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static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
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static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
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@ -122,7 +119,7 @@ int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
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if((h->left_samples_available&0x8080) != 0x8080){
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mode= left[ mode ];
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if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
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if(is_chroma && (h->left_samples_available&0x8080)){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
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mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
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}
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if(mode<0){
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@ -134,6 +131,23 @@ int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
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return mode;
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}
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/**
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra16x16_pred_mode(H264Context *h, int mode)
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{
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return check_intra_pred_mode(h, mode, 0);
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}
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/**
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra_chroma_pred_mode(H264Context *h, int mode)
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{
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return check_intra_pred_mode(h, mode, 1);
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}
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const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
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int i, si, di;
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uint8_t *dst;
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@ -668,7 +668,12 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h);
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/**
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* Check if the top & left blocks are available if needed & change the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra_pred_mode(H264Context *h, int mode);
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int ff_h264_check_intra16x16_pred_mode(H264Context *h, int mode);
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/**
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* Check if the top & left blocks are available if needed & change the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra_chroma_pred_mode(H264Context *h, int mode);
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void ff_h264_hl_decode_mb(H264Context *h);
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int ff_h264_frame_start(H264Context *h);
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@ -2013,14 +2013,14 @@ decode_intra_mb:
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write_back_intra_pred_mode(h);
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if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;
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} else {
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h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode );
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h->intra16x16_pred_mode= ff_h264_check_intra16x16_pred_mode( h, h->intra16x16_pred_mode );
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if( h->intra16x16_pred_mode < 0 ) return -1;
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}
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if(decode_chroma){
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h->chroma_pred_mode_table[mb_xy] =
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pred_mode = decode_cabac_mb_chroma_pre_mode( h );
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pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode );
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pred_mode= ff_h264_check_intra_chroma_pred_mode( h, pred_mode );
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if( pred_mode < 0 ) return -1;
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h->chroma_pred_mode= pred_mode;
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} else {
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@ -821,12 +821,12 @@ decode_intra_mb:
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if( ff_h264_check_intra4x4_pred_mode(h) < 0)
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return -1;
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}else{
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h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode(h, h->intra16x16_pred_mode);
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h->intra16x16_pred_mode= ff_h264_check_intra16x16_pred_mode(h, h->intra16x16_pred_mode);
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if(h->intra16x16_pred_mode < 0)
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return -1;
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}
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if(decode_chroma){
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pred_mode= ff_h264_check_intra_pred_mode(h, get_ue_golomb_31(&s->gb));
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pred_mode= ff_h264_check_intra_chroma_pred_mode(h, get_ue_golomb_31(&s->gb));
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if(pred_mode < 0)
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return -1;
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h->chroma_pred_mode= pred_mode;
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@ -614,7 +614,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
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dir = i_mb_type_info[mb_type - 8].pred_mode;
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dir = (dir >> 1) ^ 3*(dir & 1) ^ 1;
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if ((h->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, dir)) == -1){
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if ((h->intra16x16_pred_mode = ff_h264_check_intra16x16_pred_mode(h, dir)) == -1){
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av_log(h->s.avctx, AV_LOG_ERROR, "check_intra_pred_mode = -1\n");
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return -1;
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}
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@ -713,7 +713,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
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s->current_picture.f.mb_type[mb_xy] = mb_type;
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if (IS_INTRA(mb_type)) {
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h->chroma_pred_mode = ff_h264_check_intra_pred_mode(h, DC_PRED8x8);
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h->chroma_pred_mode = ff_h264_check_intra_chroma_pred_mode(h, DC_PRED8x8);
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}
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return 0;
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