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DFA: fix "skip frame" TSW1 encoding.

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Previously the decoder would raise an error.
The end result is the same, the time stamps only change
because regression tests create time stamps incorrectly.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger
2012-01-22 12:41:12 +01:00
parent f870fc2fb9
commit 0b378e8aa9
2 changed files with 11 additions and 8 deletions
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2
libavcodec/dfa.c
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@@ -67,6 +67,8 @@ static int decode_tsw1(uint8_t *frame, int width, int height,
segments = bytestream_get_le32(&src);
offset = bytestream_get_le32(&src);
if (segments == 0 && offset == frame_end - frame)
return 0; // skip frame
if (frame_end - frame <= offset)
return -1;
frame += offset;

17
tests/ref/fate/dfa4
View File

@@ -1,13 +1,14 @@
0, 0, 921600, 0xd9e060e3
0, 12780, 921600, 0x15e28dc7
0, 25560, 921600, 0x78e8bfbc
0, 38340, 921600, 0xe9407075
0, 51120, 921600, 0xab818b8a
0, 0, 921600, 0x00000000
0, 12780, 921600, 0xd9e060e3
0, 25560, 921600, 0x15e28dc7
0, 38340, 921600, 0x78e8bfbc
0, 51120, 921600, 0xe9407075
0, 63900, 921600, 0xab818b8a
0, 76680, 921600, 0xab818b8a
0, 89460, 921600, 0xab818b8a
0, 102240, 921600, 0xab818b8a
0, 115020, 921600, 0xab818b8a
0, 127800, 921600, 0xad5ad11c
0, 140580, 921600, 0xe6e50f8c
0, 153360, 921600, 0x9f127099
0, 127800, 921600, 0xab818b8a
0, 140580, 921600, 0xad5ad11c
0, 153360, 921600, 0xe6e50f8c
0, 166140, 921600, 0x9f127099