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Author SHA1 Message Date
Mans Rullgard
a31e9f68a4 lavf: fix signed overflow in avformat_find_stream_info() 
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>
 2011-10-08 20:04:22 +01:00
Mans Rullgard
bb59156606 vp8: fix signed overflows 
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>
 2011-10-08 20:03:55 +01:00
Mans Rullgard
e708afd3c0 motion_est: fix some signed overflows 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-10-08 20:03:55 +01:00
Mans Rullgard
559c244d42 dca: fix signed overflow in shift 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-10-08 20:03:55 +01:00
Mans Rullgard
d12294304a aacdec: fix undefined shifts 
Since nnz can be zero, this is needed to avoid a shift by 32.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-10-08 20:03:55 +01:00
Michael Niedermayer
db27bef747 dct-test: document the number of bits we use for testing. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 19:58:27 +02:00
Michael Niedermayer
3d5971d9f7 dct-test: better term for meximum error. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 19:57:30 +02:00
Michael Niedermayer
f3bacced24 ffmpeg: fix read_yn() if HAVE_TERMIOS_H || HAVE_KBHIT == 0 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 19:43:10 +02:00
Michael Niedermayer
dc46692ded ffmpeg: fix setting codecs for demuxers. 
Bug introduced by:
commit e3bf4e292c
Author: Anton Khirnov <anton@khirnov.net>
Date:   Tue Aug 30 04:10:54 2011 +0200

    ffmpeg: replace -vcodec/-acodec/-scodec with a better system.

    The new option doesn't depend on its placement wrt -new* options (which
    don't exist anymore) and works in a similar way as per-stream AVOptions.

    -[vas]codec remain as aliases to -codec:[vas]

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 19:21:22 +02:00
Michael Niedermayer
92ec66f983 ffmpeg: limit read_key() calls to get a tiny speed boost. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 18:37:47 +02:00
Michael Niedermayer
c09abba1d9 ffmpeg: avoid multiple redundant av_gettime() calls, rather reuse the value in a iteration of the main loop. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 18:37:47 +02:00
Michael Niedermayer
f3afc9d772 ffmpeg: fix run_as_daemon when HAVE_TERMIOS_H is false 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 18:37:47 +02:00
Michael Niedermayer
d6c231bac1 ffmpeg: cosmetic renamings to reduce difference to qatar. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 18:37:47 +02:00
Michael Niedermayer
0732dceef1 ffmpeg: call term_init() earlier 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 18:37:47 +02:00
Michael Niedermayer
570fb660d6 ffmpeg: make q_pressed volatile, it can be changed from signal handlers. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 17:26:43 +02:00
Michael Niedermayer
fb79558516 ffmpeg: dont call read_key() in decode_interrupt_cb() this can cause keys to be lost 
also its slow when read_key() is slow and there are a very large number of calls

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 17:26:43 +02:00
Laurent Aimar
a00676e48e bink: Check for various out of bound writes 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-08 16:32:01 +02:00
Laurent Aimar
24adf7832b bink: Check for out of bound writes when building tree 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-08 16:25:56 +02:00
Michael Niedermayer
1339702540 eval: add gcd() 
example: -vf 'scale=256:256,mp=geq=gcd(X\,Y)-2:128:128'

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 04:38:17 +02:00
Michael Niedermayer
9e5e086b7e eval:add hypot() 
useage example: -vf 'scale=256:256,mp=geq=random(1)/hypot(X-cos(N*0.07)*W/2-W/2\,Y-sin(N*0.09)*H/2-H/2)^2*1000000*sin(N*0.02):128:128'

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 04:38:01 +02:00
Mans Rullgard
ac6eab1496 put_bits: fix invalid shift by 32 in flush_put_bits() 
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>
 2011-10-08 02:41:58 +01:00
Michael Niedermayer
9b47173545 Merge remote-tracking branch 'qatar/master' 
* qatar/master: (24 commits)
  mpegps: Use av_get_packet() instead of poorly emulating it.
  motionpixels: decode only the 111 complete frames for fate
  mpc8: Check out of bound bands limit
  xan: Prevent NULL dereference with missing palette
  xan: Check for out of bound reads in xan_huffman_decode()
  xan: Fixed out of bound accesses in xan_unpack()
  motionpixels: Prevent calling init_vlc() with invalid parameters
  shorten: Fix out of bound writes in fix_bitshift()
  dsicinav: Check for out of bounds writes
  tiertexseqv: Check for out of bound reads
  quickdraw: Check for out of bound reads
  dsicinav: Check for out of bounds reads
  motionpixels: Fix the size of workspace buffers
  motionpixels: Clear FF_INPUT_BUFFER_PADDING_SIZE bytes at the end of the temporary buffer
  wmavoice: Check for corrupted extra data
  wmavoice: Check for out of bound writes
  xan: Prevent NULL dereferences with missing reference frame
  bink: Prevent NULL dereferences with missing reference frame
  wavpack: Reset internal state on corrupted blocks
  wmapro: Validate the number of audio channels before using it
  ...

Conflicts:
	libavcodec/h264.c
	libavcodec/xan.c
	tests/ref/fate/motionpixels

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 03:39:01 +02:00
Michael Niedermayer
ac7cda9e14 eval: add random() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 03:13:21 +02:00
Michael Niedermayer
8fd56f7b12 eval: make variables persistent so they can be used between evaluations. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 03:13:21 +02:00
Michael Niedermayer
74f77eb048 H264: set colorspace and full range to values indicating unspecified by default 
Code based on ffdshow
Author unknown

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-08 03:13:21 +02:00
Alex Converse
98ef887a75 mpegps: Use av_get_packet() instead of poorly emulating it. 2011-10-07 17:04:14 -07:00
Clément Bœsch
3775af0fec bintext: reset x and y pos after each frame decode. 
This makes successive frames decode possible.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-07 22:28:07 +02:00
Maksym Veremeyenko
4052bf69ac return error code if error happens 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-07 22:28:07 +02:00
Janne Grunau
c2f2dfb3dd motionpixels: decode only the 111 complete frames for fate 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 19:32:07 +02:00
Laurent Aimar
9bd854b1ff mpc8: Check out of bound bands limit 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 17:15:45 +02:00
Laurent Aimar
7d17a794f0 xan: Prevent NULL dereference with missing palette 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 17:15:31 +02:00
Laurent Aimar
3db3fdf4c6 xan: Check for out of bound reads in xan_huffman_decode() 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:32 +02:00
Laurent Aimar
3e0757c2a8 xan: Fixed out of bound accesses in xan_unpack() 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:32 +02:00
Laurent Aimar
1cd0a55163 motionpixels: Prevent calling init_vlc() with invalid parameters 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:32 +02:00
Laurent Aimar
5f05cf4ea9 shorten: Fix out of bound writes in fix_bitshift() 
The data pointers s->decoded[*] already take into account s->nwrap.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
1720603287 dsicinav: Check for out of bounds writes 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
64263dd526 tiertexseqv: Check for out of bound reads 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
4fd56f842c quickdraw: Check for out of bound reads 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
e3ca9b93d9 dsicinav: Check for out of bounds reads 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
210c80331e motionpixels: Fix the size of workspace buffers 
Some buffers must be mod 4 in width and/or height.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
d337dd3a90 motionpixels: Clear FF_INPUT_BUFFER_PADDING_SIZE bytes at the end of the temporary buffer 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
d99427cb8b wmavoice: Check for corrupted extra data 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
1c1449b548 wmavoice: Check for out of bound writes 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
06be075cda xan: Prevent NULL dereferences with missing reference frame 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
c7e631986b bink: Prevent NULL dereferences with missing reference frame 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
2c6cf13940 wavpack: Reset internal state on corrupted blocks 
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>
 2011-10-07 16:25:31 +02:00
Laurent Aimar
2c1ba79941 wmapro: Validate the number of audio channels before using it 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:30 +02:00
Laurent Aimar
1e3336de69 mpc8: Fix return value on EOF 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:30 +02:00
Laurent Aimar
95010d18b2 shorten: Prevent block size from increasing 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:30 +02:00
Laurent Aimar
124a16f678 xan: Prevent out of bound accesses 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 16:25:30 +02:00