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@@ -218,17 +218,18 @@ static inline int svq3_decode_block(GetBitContext *gb, DCTELEM *block, |
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static const uint8_t *const scan_patterns[4] = |
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{ luma_dc_zigzag_scan, zigzag_scan, svq3_scan, chroma_dc_scan }; |
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int run, level, sign, vlc, limit; |
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int run, level, sign, limit; |
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unsigned vlc; |
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const int intra = 3 * type >> 2; |
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const uint8_t *const scan = scan_patterns[type]; |
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for (limit = (16 >> intra); index < 16; index = limit, limit += 8) { |
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for (; (vlc = svq3_get_ue_golomb(gb)) != 0; index++) { |
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if (vlc < 0) |
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if ((int)vlc < 0) |
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return -1; |
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sign = (vlc & 0x1) - 1; |
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vlc = vlc + 1 >> 1; |
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sign = (vlc & 1) ? 0 : -1; |
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vlc = vlc + 1 >> 1; |
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if (type == 3) { |
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if (vlc < 3) { |
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@@ -1014,7 +1015,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data, |
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H264Context *h = &svq3->h; |
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MpegEncContext *s = &h->s; |
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int buf_size = avpkt->size; |
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int m, mb_type, left; |
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int m, left; |
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uint8_t *buf; |
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/* special case for last picture */ |
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@@ -1109,6 +1110,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data, |
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for (s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { |
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for (s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { |
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unsigned mb_type; |
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h->mb_xy = s->mb_x + s->mb_y * s->mb_stride; |
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if ((get_bits_count(&s->gb) + 7) >= s->gb.size_in_bits && |
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@@ -1129,7 +1131,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data, |
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mb_type += 8; |
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else if (s->pict_type == AV_PICTURE_TYPE_B && mb_type >= 4) |
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mb_type += 4; |
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if ((unsigned)mb_type > 33 || svq3_decode_mb(svq3, mb_type)) { |
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if (mb_type > 33 || svq3_decode_mb(svq3, mb_type)) { |
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av_log(h->s.avctx, AV_LOG_ERROR, |
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"error while decoding MB %d %d\n", s->mb_x, s->mb_y); |
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return -1; |
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