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* h264: fix sps parsing for SVC and CAVLC 4:4:4 Intra profilesVictor Lopez2013-01-121-1/+5
| | | | | | | | | Fixes bug 396. CC: libav-stable@libav.org (cherry picked from commit 1c8bf3bfed5ff5c504c8e3de96188a977f67cce0) Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: check sps.log2_max_frame_num for validityJanne Grunau2013-01-121-2/+14
| | | | | | | | | | Fixes infinite or long taking loop in frame num gap code in the fuzzed sample bipbop234.ts_s223302. CC: libav-stable@libav.org (cherry picked from commit d7d6efe42b0d2057e67999b96b9a391f533d2333) Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: Add check for invalid chroma_format_idcAlexander Strange2012-05-221-1/+5
| | | | | | | | | | | Fixes a crash when FF_DEBUG_PICT_INFO is used. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> (cherry picked from commit 6ef4063957aa5025c8d2cd757b6a537e4b6874df) Fixes: CVE-2012-0851 Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: additional protection against unsupported size/bitdepth changes.Ronald S. Bultje2012-05-041-0/+3
| | | | | | | | | | | | | Fixes crashes in codepaths not covered by original checks. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind (cherry picked from commit 732f9fcfe54fc9a0a7bbce53fe86b38744c2d301) Conflicts: libavcodec/h264.c Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: improve parsing of broken AVC SPSMichael Niedermayer2012-03-141-1/+4
| | | | | | | | | | | | | | | Parsing the entire NAL as SPS fixes decoding of some AVC bitstreams with broken escaping. Since the size of the NAL unit is known and checked against the buffer end we can parse it entirely without buffer overreads. Fixes playback of http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4 Signed-off-by: Janne Grunau <janne-libav@jannau.net> (cherry picked from commit 3aa661ec561d7a20812b84b353b0d7855ac346c8) Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* Replace computations of remaining bits with calls to get_bits_left().Alex Converse2012-03-141-2/+2
| | | | | | (cherry picked from commit 3574a85ce57366ba7429edef93d5cad8640fb68c) Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: 4:2:2 intra decoding supportBaptiste Coudurier2011-10-211-2/+3
| | | | | Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* h264: fix HRD parameters parsingMans Rullgard2011-10-111-2/+2
| | | | | | | | | | The bit_rate_value_minus1 and cpb_size_value_minus1 elements allow a wider range than get_ue_golomb() supports. This adds a get_ue_golomb_long() function supporting up to 31 leading zeros, which is the maximum for these syntax elements, and uses it in decode_hrd_parameters(). Signed-off-by: Mans Rullgard <mans@mansr.com>
* h264: fix detection of optional trailing PPS elementsMans Rullgard2011-10-111-1/+4
| | | | | | | | | | | | | | The PPS may contain a few trailing elements whose presence is only signalled by data remaining after the the mandatory part has been parsed. The current code fails to take into account the rbsp_trailing_bits() when deciding whether to parse these optional elements. Assuming no unnecessary padding bytes are passed to this function, the optional elements are present if either more than 8 extra bits remain or the remaining bits do not form a valid rbsp_trailing_bits() after the mandatory PPS elements have been parsed. Signed-off-by: Mans Rullgard <mans@mansr.com>
* H.264: fix 4:4:4 cropping warningJason Garrett-Glaser2011-06-221-1/+2
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* H.264: reference the correct SPS in decode_scaling_matricesJason Garrett-Glaser2011-06-221-2/+2
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* 4:4:4 H.264 decoding supportJason Garrett-Glaser2011-06-131-3/+11
| | | | Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.
* Roll back 4:4:4 H.264 for nowJason Garrett-Glaser2011-06-131-11/+3
| | | | Needs some ARM/PPC asm modifications.
* 4:4:4 H.264 decoding supportJason Garrett-Glaser2011-06-131-3/+11
| | | | Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.
* Add support for higher QP values in h264.Oskar Arvidsson2011-05-101-12/+35
| | | | | | | | In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)). Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-191-4/+4
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Merge libavcore into libavutilReinhard Tartler2011-02-151-1/+1
| | | | | | | | | | | | It is pretty hopeless that other considerable projects will adopt libavutil alone in other projects. Projects that need small footprint are better off with more specialized libraries such as gnulib or rather just copy the necessary parts that they need. With this in mind, nobody is helped by having libavutil and libavcore split. In order to ease maintenance inside and around FFmpeg and to reduce confusion where to put common code, avcore's functionality is merged (back) to avutil. Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* h264: Add Intra and Constrained Baseline profiles to avctx.profileJanne Grunau2011-02-011-5/+6
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* H.264 decode: support cropping up to 28 pixels in interlaced mode.Reimar Döffinger2010-11-031-1/+1
| | | | | | | | Contrary to progressive, just being able to crop up to 14/15 pixels is not enough to encode all supported resolutions, and the new behaviour is also consistent with e.g. MPEG-2 etc. Originally committed as revision 25669 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Fix default value of time_offset_length.John Stebbins2010-10-061-0/+1
| | | | | | Patch by John Stebbins stebbins jetheaddev com. Originally committed as revision 25374 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move aspect ratio 0/0 avoidance code so the values in the sps struct are not ↵Michael Niedermayer2010-10-051-0/+3
| | | | | | | | missed. This preempts issues with av_cmp_q(0/0, X) Originally committed as revision 25337 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use new imgutils.h API names, fix deprecation warnings.Stefano Sabatini2010-09-071-1/+1
| | | | Originally committed as revision 25058 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove use of the deprecated function avcodec_check_dimensions(), useStefano Sabatini2010-08-061-1/+2
| | | | | | av_check_image_size() instead. Originally committed as revision 24711 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Check for VUI overeading and reset num_reoder_frames.Michael Niedermayer2010-05-251-0/+6
| | | | | | This helps the video from issue1831 Originally committed as revision 23328 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove explicit filename from Doxygen @file commands.Diego Biurrun2010-04-201-1/+1
| | | | | | | | Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Check direct_8x8_inference_flag.Michael Niedermayer2010-02-071-0/+4
| | | | Originally committed as revision 21668 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Fix large timebases.Michael Niedermayer2010-02-041-1/+1
| | | | | | Fixed issue1633 Originally committed as revision 21636 to svn://svn.ffmpeg.org/ffmpeg/trunk
* 10l for someone, Store chroma_qp_diff in the correct struct.Michael Niedermayer2010-01-181-1/+1
| | | | Originally committed as revision 21286 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Split (picture|seq) parameter set decoding out of h264.c.Michael Niedermayer2010-01-121-0/+527
no speedloss meassured, also its really not touching anything that is speed relevant. Originally committed as revision 21169 to svn://svn.ffmpeg.org/ffmpeg/trunk
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