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1095 Commits

Author SHA1 Message Date
Diego Biurrun
f2408ec9d7 Give IDCT matrix transpose macro a more descriptive name 
This also avoids a macro name clash and related warning on ARM.
 2014-02-27 13:38:00 -08:00
Luca Barbato
d922c5a5fb h264: Fix a typo from the previous commit 
f777504f64 changed a - in +

CC: libav-stable@libav.org
 2014-02-22 12:26:32 +01:00
Vittorio Giovara
f777504f64 h264: Lower bound check for slice offsets 
And use the value from the specification.

Sample-Id: 00000451-google
Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-02-20 18:58:38 +01:00
Luca Barbato
fea6db064b h264: informative error reporting in decode_slice_header() 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-02-18 23:47:55 +01:00
Luca Barbato
96f9fbe109 h264: fix slice_type value reported in decode_slice_header() 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-02-18 23:47:32 +01:00
Vittorio Giovara
15210354cf h264: drop outdated comments 2014-02-14 05:08:37 +01:00
Vittorio Giovara
3a05767028 h264: store current_sps_id inside the current sps 
In preparation for MVC support.
 2014-02-14 05:05:46 +01:00
Vittorio Giovara
73e8fab31d h264: print values in case of error 
Also make error style consistent and drop redundant information.
 2014-02-14 05:05:35 +01:00
Janne Grunau
f795a8a8bf h264: make context_count unsigned 
Removes the bogus but scary looking warning 'libavcodec/h264.c:4529:49:
warning: array subscript is below array bounds [-Warray-bounds]'.
 2014-02-12 15:48:03 +01:00
Anton Khirnov
1f097d168d h264: reset data partitioning at the beginning of each decode call 
Prevents using GetBitContexts with data from previous calls.

Fixes access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-02-04 11:26:17 +01:00
Janne Grunau
fb0c9d41d6 avutil: remove timer.h include from internal.h 
Added libavutil/timer.h include to all files with {START,STOP}_TIMER.
 2014-01-25 21:50:20 +01:00
Janne Grunau
ea49f60523 h264: skip chroma edges at the picture boundary while deblocking 4:4:4 
This handles macroblock edges for the chroma components in the same way
as for the luma compoment for 4:4:4 streams. The Spec explicitly states
that the deblocking filter is not applied to edges at the boundary of
the picture.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-01-22 13:44:28 +01:00
Anton Khirnov
8b2e5e42bb h264: check that an IDR NAL only contains I slices 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:53:31 +01:00
Anton Khirnov
0652e024c6 h264: reset ref count if decoding the slice header fails 
Otherwise the ER code might try to use some already freed references.

Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:51:04 +01:00
Anton Khirnov
00dbff4c3e h264: do not call field_end if we do not have a current picture 
Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:42:21 +01:00
Anton Khirnov
7f0e81db3c h264: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3 
Higher modes are not allowed for 16x16/chroma, which is what this
function is used for. Otherwise this function would return 0 (vertical
prediction) for invalid higher modes, which could result in invalid
reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:41:59 +01:00
Anton Khirnov
d1b3fabe69 h264: reset first_field if frame_start() fails for missing refs 
In this case we may not have a current frame, while first_field being
set implies we do.

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-18 20:41:24 +01:00
Anton Khirnov
9eef9eb301 h264: check that execute_decode_slices() is not called too many times 
Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:25:25 +01:00
Anton Khirnov
bfd26b7ce6 h264: reject mismatching luma/chroma bit depths during sps parsing 
There is no point in delaying the check and it avoids bugs with a
half-initialized context.

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:23:45 +01:00
Anton Khirnov
9a026c7298 h264: rebuild the default ref list if the reference count changes 
Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-06 08:23:17 +01:00
Anton Khirnov
58312b2472 h264: reset data_partitioning if decoding the slice header for NAL_DPA fails 
If it was set before then we can end up trying to decode a slice without
a valid slice header, which can lead to invalid memory access.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-01-03 16:42:02 +01:00
Luca Barbato
4d2bb28931 h264: namespace the decode function 
Make much easier debugging.
 2013-12-27 07:48:13 +01:00
Anton Khirnov
598ce4ab4f h264: call av_frame_unref() instead of avcodec_get_frame_defaults(). 
This is a temporary workaround to allow deprecating
avcodec_get_frame_defaults(). The proper solution will be using a
properly allocated AVFrame in Picture.
 2013-12-11 20:39:55 +01:00
Vittorio Giovara
5b10ef729f h264: parse frame packing arrangement SEI messages and save relevant stereo3d information 2013-12-09 16:02:43 +01:00
Anton Khirnov
f0259a587e h264: check buffer size before accessing it 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:54:20 +01:00
Anton Khirnov
a553c6a347 lavc: use buf[0] instead of data[0] in checks whether a frame is allocated 
data[0] may be NULL for valid frames with hwaccel pixel formats.
 2013-11-18 18:09:48 +01:00
Ronald S. Bultje
458446acfa lavc: Edge emulation with dst/src linesize 
Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.
 2013-11-15 10:16:27 +01:00
Anton Khirnov
9eda9d3322 h264: free the tables and uninitialize the context on flush 
Prevents referencing empty frames when the first packet after the flush
does not contain a frame.
 2013-11-14 19:00:20 +01:00
Luca Barbato
08303d7741 hwaccel: Simplify ff_find_hwaccel 
It is always called by passing fields from an AVCodecContext.
 2013-11-10 13:59:48 +01:00
John Stebbins
28096e0a80 h264: wait for initial complete frame before outputing frames 
This can be optionally disabled whith the "output_corrupt" flags
option.  When in "output_corrupt" mode, incomplete frames are
signalled through AVFrame.flags FRAME_FLAG_INCOMPLETE_FRAME.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-10-31 20:14:14 +01:00
Derek Buitenhuis
58d13cea30 h264: Check all allocations 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-10-29 14:00:29 +00:00
Ronald S. Bultje
93f305473f lavc: Convert some remaining strides to ptrdiff_t 2013-10-15 23:58:20 +02:00
Yusuke Nakamura
4baba6c813 h264_parser: Fix POC parsing for the case where MMCO_RESET is present. 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-10-15 20:02:55 +02:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Anton Khirnov
cab8c5f8e1 h264: do not reinitialize the global cabac tables at each slice header 2013-09-24 17:13:52 +02:00
Rainer Hochecker
71cabb521a h264: do not discard NAL_SEI when skipping frames 
Setting AVDISCARD_NONREF (e.g. after flushing) resulted in 100% dropped frames.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-09-24 13:24:29 +02:00
Vittorio Giovara
edaba18021 h264: log extradata skip only for non-ignored NALs 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-09-24 13:24:28 +02:00
Vittorio Giovara
1cad7171dd h264: remove an unused static constant 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-09-20 14:40:10 +03:00
Diego Biurrun
c4e43560fe h264data: Move some tables to the only place they are used 2013-08-20 20:49:37 +02:00
Diego Biurrun
2a61592573 avcodec: Remove some commented-out debug cruft 2013-08-20 19:59:50 +02:00
Vittorio Giovara
c1076d8479 h264: check one context_init() allocation 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-08-10 13:36:38 +02:00
Vittorio Giovara
5eb488bfa8 h264: use explicit variable names for *_field_flag 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-08-10 13:36:25 +02:00
Vittorio Giovara
b3dc260e7f h264: return meaningful values 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-08-10 13:28:51 +02:00
Rémi Denis-Courmont
578ea75a9e vdpau: remove old-style decoders 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-08-05 11:15:49 +02:00
Yusuke Nakamura
a8b19271c3 avcodec: Add output_picture_number to AVCodecParserContext 
Set output_picture_number in H.264 parser.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-08-02 20:59:45 +02:00
Diego Biurrun
16c22122c7 h264: K&R formatting cosmetics 2013-07-27 10:47:38 +02:00
Yusuke Nakamura
3f1a7ceb2c h264_parser: Set field_order and picture_structure. 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-05-24 08:45:05 +02:00
Diego Biurrun
fce99322b0 h264: Drop unused variable 2013-04-22 12:05:09 +02:00
Ronald S. Bultje
c443117f25 dsputil: Remove dct_bits 
dct_bits is never set except in h264, where it is never used,
thus remove it.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-04-19 23:29:22 +03:00
Anton Khirnov
5e83d9aced h264: fully support cropping. 
Based on a patch by Vittorio Giovara <vittorio.giovara@gmail.com>

Fixes Bug 378.
 2013-04-19 09:28:08 +02:00