diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/vp3.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index 573e918068..5ff6f9e279 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -288,6 +288,7 @@ typedef struct Vp3DecodeContext { int last_coded_c_fragment; uint8_t edge_emu_buffer[9*2048]; //FIXME dynamic alloc + uint8_t qscale_table[2048]; //FIXME dynamic alloc (width+15)/16 } Vp3DecodeContext; /************************************************************************ @@ -1186,6 +1187,8 @@ static void init_dequantizer(Vp3DecodeContext *s) s->inter_dequant[j] = MIN_DEQUANT_VAL * 2; s->inter_dequant[j] *= SCALER; } + + memset(s->qscale_table, (FFMAX(s->intra_y_dequant[1], s->intra_c_dequant[1])+8)/16, 512); //FIXME finetune /* print debug information as requested */ debug_dequantizers("intra Y dequantizers:\n"); @@ -2403,29 +2406,22 @@ static void render_fragments(Vp3DecodeContext *s, int src_x, src_y; motion_x = s->all_fragments[i].motion_x; motion_y = s->all_fragments[i].motion_y; + if(plane){ + motion_x= (motion_x>>1) | (motion_x&1); + motion_y= (motion_y>>1) | (motion_y&1); + } + src_x= (motion_x>>1) + x; src_y= (motion_y>>1) + y; if ((motion_x == 0xbeef) || (motion_y == 0xbeef)) printf (" help! got beefy vector! (%X, %X)\n", motion_x, motion_y); - if (motion_x >= 0) { - motion_halfpel_index = motion_x & 0x01; - motion_source += (motion_x >> 1); - } else { - motion_x = -motion_x; - motion_halfpel_index = motion_x & 0x01; - motion_source -= ((motion_x + 1) >> 1); - } + motion_halfpel_index = motion_x & 0x01; + motion_source += (motion_x >> 1); // motion_y = -motion_y; - if (motion_y >= 0) { - motion_halfpel_index |= (motion_y & 0x01) << 1; - motion_source += ((motion_y >> 1) * stride); - } else { - motion_y = -motion_y; - motion_halfpel_index |= (motion_y & 0x01) << 1; - motion_source -= (((motion_y + 1) >> 1) * stride); - } + motion_halfpel_index |= (motion_y & 0x01) << 1; + motion_source += ((motion_y >> 1) * stride); if(src_x<0 || src_y<0 || src_x + 9 >= width || src_y + 9 >= height){ uint8_t *temp= s->edge_emu_buffer; @@ -2735,6 +2731,9 @@ static int vp3_decode_frame(AVCodecContext *avctx, } } + s->current_frame.qscale_table= s->qscale_table; //FIXME allocate individual tables per AVFrame + s->current_frame.qstride= 0; + init_frame(s, &gb); #if KEYFRAMES_ONLY |