Commits · 4d1418cd4f620b382106542d0f33d96e33a0fdae · Linshizhi / ffmpeg.wasm-core

09 Oct, 2011 2 commits
- h264: fix signed overflows in x*0x01010101 expressions · 4d1418cd
  Mans Rullgard authored Oct 08, 2011
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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  4d1418cd
- h264pred: remove unused variables · d66b9dec
  Mans Rullgard authored Oct 08, 2011
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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  d66b9dec
08 Oct, 2011 9 commits

lavf: fix signed overflow in avformat_find_stream_info() · a31e9f68

Mans Rullgard authored Oct 08, 2011

On the first iteration through this code, last_dts is always
INT64_MIN (AV_NOPTS_VALUE) and the subtraction overflows in
an invalid manner.  Although the result is only used if the
input values are valid, performing the subtraction is still
not allowed in a strict environment.
Signed-off-by: Mans Rullgard <mans@mansr.com>

a31e9f68

vp8: fix signed overflows · bb591566

Mans Rullgard authored Oct 08, 2011

In addition to avoiding undefined behaviour, an unsigned type
makes more sense for packing multiple 8-bit values.
Signed-off-by: Mans Rullgard <mans@mansr.com>

bb591566

motion_est: fix some signed overflows · e708afd3
Mans Rullgard authored Oct 08, 2011
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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e708afd3
dca: fix signed overflow in shift · 559c244d
Mans Rullgard authored Oct 08, 2011
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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559c244d

aacdec: fix undefined shifts · d1229430

Mans Rullgard authored Oct 08, 2011

Since nnz can be zero, this is needed to avoid a shift by 32.
Signed-off-by: Mans Rullgard <mans@mansr.com>

d1229430

bink: Check for various out of bound writes · a00676e4
Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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a00676e4
bink: Check for out of bound writes when building tree · 24adf783
Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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24adf783

put_bits: fix invalid shift by 32 in flush_put_bits() · ac6eab14

Mans Rullgard authored Oct 08, 2011

If flush_put_bits() is called when the 32-bit buffer is empty,
e.g. after writing a multiple of 32 bits, and invalid shift by
32 is performed.  Since flush_put_bits() is called infrequently,
this additional check should have negligible performance impact.
Signed-off-by: Mans Rullgard <mans@mansr.com>

ac6eab14

mpegps: Use av_get_packet() instead of poorly emulating it. · 98ef887a
Alex Converse authored Oct 08, 2011

98ef887a

07 Oct, 2011 23 commits
- motionpixels: decode only the 111 complete frames for fate · c2f2dfb3
  Janne Grunau authored Oct 07, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  c2f2dfb3
- mpc8: Check out of bound bands limit · 9bd854b1
  Laurent Aimar authored Sep 25, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  9bd854b1
- xan: Prevent NULL dereference with missing palette · 7d17a794
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  7d17a794
- xan: Check for out of bound reads in xan_huffman_decode() · 3db3fdf4
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  3db3fdf4
- xan: Fixed out of bound accesses in xan_unpack() · 3e0757c2
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  3e0757c2
- motionpixels: Prevent calling init_vlc() with invalid parameters · 1cd0a551
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  1cd0a551
- shorten: Fix out of bound writes in fix_bitshift() · 5f05cf4e
  Laurent Aimar authored Sep 30, 2011
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The data pointers s->decoded[*] already take into account s->nwrap.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  5f05cf4e
- dsicinav: Check for out of bounds writes · 17206032
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  17206032
- tiertexseqv: Check for out of bound reads · 64263dd5
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  64263dd5
- quickdraw: Check for out of bound reads · 4fd56f84
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  4fd56f84
- dsicinav: Check for out of bounds reads · e3ca9b93
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  e3ca9b93
- motionpixels: Fix the size of workspace buffers · 210c8033
  Laurent Aimar authored Sep 29, 2011
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Some buffers must be mod 4 in width and/or height.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  210c8033
- motionpixels: Clear FF_INPUT_BUFFER_PADDING_SIZE bytes at the end of the temporary buffer · d337dd3a
  Laurent Aimar authored Sep 29, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  d337dd3a
- wmavoice: Check for corrupted extra data · d99427cb
  Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  d99427cb
- wmavoice: Check for out of bound writes · 1c1449b5
  Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  1c1449b5
- xan: Prevent NULL dereferences with missing reference frame · 06be075c
  Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  06be075c
- bink: Prevent NULL dereferences with missing reference frame · c7e63198
  Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  c7e63198
- wavpack: Reset internal state on corrupted blocks · 2c6cf139
  Laurent Aimar authored Sep 26, 2011
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wavpack_decode_block() supposes that it is called back with the exact
same buffer unless it has returned with an error. With multi-channels
files, wavpack_decode_frame() was breaking this assumption.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
```
  2c6cf139
- wmapro: Validate the number of audio channels before using it · 2c1ba799
  Laurent Aimar authored Sep 26, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  2c1ba799
- mpc8: Fix return value on EOF · 1e3336de
  Laurent Aimar authored Sep 25, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  1e3336de
- shorten: Prevent block size from increasing · 95010d18
  Laurent Aimar authored Oct 02, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  95010d18
- xan: Prevent out of bound accesses · 124a16f6
  Laurent Aimar authored Sep 27, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  124a16f6
- H264: Only wait before triggering ff_thread_setup_complete() until the next... · 14c21c1f
  Michael Niedermayer authored Oct 03, 2011
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H264: Only wait before triggering ff_thread_setup_complete() until the next slice that contains a start-of-field/frame macroblock

This allows concurrent decoding of the last field/frame, rather than
only the last slice, of data packets with multiple NAL units packed
together.

This will fix the slowdown reported in e.g. bug 52.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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  14c21c1f
06 Oct, 2011 6 commits
- vp6: Reset the internal state when aborting key frames header parsing · a72cad0a
  Laurent Aimar authored Sep 23, 2011
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It prevents leaving the state only half initialized.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  a72cad0a
- vp56: Release old pictures after a resolution changes · 3d09d001
  Laurent Aimar authored Sep 21, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  3d09d001
- vp6: Check for huffman tree build errors · 066fff75
  Laurent Aimar authored Sep 21, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  066fff75
- vp56: Check for missing reference frame data · 0ec6d6e9
  Laurent Aimar authored Sep 21, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  0ec6d6e9
- cinepak: Fix invalid read access on extra data · d239d4b4
  Laurent Aimar authored Sep 11, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  d239d4b4
- vmd: fix segfaults on corruped streams · c0cbe36b
  Laurent Aimar authored Sep 11, 2011
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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  c0cbe36b