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ffmpeg.wasm-core
Commit 5bd12d12 authored by Fabrice Bellard's avatar Fabrice Bellard
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improved mpeg1/2 decoding speed 

Originally committed as revision 517 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 44f27b3a
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libavcodec/mpeg12.c
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...@@ -855,6 +855,8 @@ static int mpeg_decode_mb(MpegEncContext *s, ...@@ -855,6 +855,8 @@ static int mpeg_decode_mb(MpegEncContext *s,
if (cbp & (1 << (5 - i))) { if (cbp & (1 << (5 - i))) {
if (mpeg2_decode_block_intra(s, block[i], i) < 0) if (mpeg2_decode_block_intra(s, block[i], i) < 0)
return -1; return -1;
} else {
s->block_last_index[i] = -1;
} }
} }
} else { } else {
...@@ -862,6 +864,8 @@ static int mpeg_decode_mb(MpegEncContext *s, ...@@ -862,6 +864,8 @@ static int mpeg_decode_mb(MpegEncContext *s,
if (cbp & (1 << (5 - i))) { if (cbp & (1 << (5 - i))) {
if (mpeg2_decode_block_non_intra(s, block[i], i) < 0) if (mpeg2_decode_block_non_intra(s, block[i], i) < 0)
return -1; return -1;
} else {
s->block_last_index[i] = -1;
} }
} }
} }
...@@ -870,6 +874,8 @@ static int mpeg_decode_mb(MpegEncContext *s, ...@@ -870,6 +874,8 @@ static int mpeg_decode_mb(MpegEncContext *s,
if (cbp & (1 << (5 - i))) { if (cbp & (1 << (5 - i))) {
if (mpeg1_decode_block(s, block[i], i) < 0) if (mpeg1_decode_block(s, block[i], i) < 0)
return -1; return -1;
} else {
s->block_last_index[i] = -1;
} }
} }
} }
......
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