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path: root/libavcodec/h264_cavlc.c
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* h264: move ff_h264_check_intra[4x4]_pred_mode() to h264_parseAnton Khirnov2016-03-28
| | | | It is shared with svq3.
* h264data: Move all data tables from a header to a .c fileDiego Biurrun2016-03-25
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* cosmetics: Drop particularly redundant silly commentsDiego Biurrun2016-02-18
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* lavc: Replace av_dlog and tprintf with internal macrosVittorio Giovara2015-04-19
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* h264_cavlc: constify all uses of H264ContextAnton Khirnov2015-03-21
| | | | | All the variables modified by this code are either per-MB arrays or have been moved to the per-slice context
* h264: move mb_mbaff into the per-slice contextAnton Khirnov2015-03-21
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* h264: move mb_field_decoding_flag into the per-slice contextAnton Khirnov2015-03-21
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* h264: use a separate GetBitContext for slice dataAnton Khirnov2015-03-21
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* h264: remove some remnants of data partitioningAnton Khirnov2015-03-21
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* h264: move mb_{x,y} into the per-slice contextAnton Khirnov2015-03-21
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* h264: move mb_xy into the per-slice contextAnton Khirnov2015-03-21
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* h264: move mb_skip_run into the per-slice contextAnton Khirnov2015-03-21
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* h264: move [{top,left}_]cbp into the per-slice contextAnton Khirnov2015-03-21
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* h264: move mb[_{padding,luma_dc}] into the per-slice contextAnton Khirnov2015-03-21
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* h264: move intra_pcm_ptr into the per-slice contextAnton Khirnov2015-03-21
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* h264: move the ref lists variables into the per-slice contextAnton Khirnov2015-03-21
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* h264: move sub_mb_type into the per-slice contextAnton Khirnov2015-03-21
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* h264: move the slice type variables into the per-slice contextAnton Khirnov2015-03-21
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* h264: move {mv,ref}_cache into the per-slice contextAnton Khirnov2015-03-21
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* h264: move non_zero_count_cache into the per-slice contextAnton Khirnov2015-03-21
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* h264: move *_samples_available into the per-slice contextAnton Khirnov2015-03-21
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* h264: move intra4x4_pred_mode[_cache] into the per-slice contextAnton Khirnov2015-03-21
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* h264: move some neighbour information into the per-slice contextAnton Khirnov2015-03-21
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* h264: move {chroma,intra16x16}_pred_mode into the per-slice contextAnton Khirnov2015-03-21
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* h264: move {prev,next}_mb_skipped into the per-slice contextAnton Khirnov2015-03-21
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* h264: move the quantizers into the per-slice contextAnton Khirnov2015-03-21
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* h264 does not depend on mpegvideo any moreVittorio Giovara2014-03-16
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* mpegvideo: move mpegvideo formats-related defines to mpegutils.hVittorio Giovara2014-03-16
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* h264_cavlc: check the size of the intra PCM data.Anton Khirnov2013-11-21
| | | | | | Fixes invalid reads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org
* avcodec: Remove some commented-out debug cruftDiego Biurrun2013-08-20
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* h264: add a parameter to the CHROMA444 macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* h264: add a parameter to the CHROMA422 macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* h264: add a parameter to the CABAC macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* h264: add a parameter to the FRAME_MBAFF macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* h264: add a parameter to the MB_FIELD macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* h264: add a parameter to the MB_MBAFF macro.Anton Khirnov2013-03-21
| | | | This way it does not look like a constant.
* lavc decoders: work with refcounted frames.Anton Khirnov2013-03-08
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* h264: Don't store intra pcm samples in h->mbRonald S. Bultje2013-02-19
| | | | | | | | | Instead, keep them in the bitstream buffer until we read them verbatim, this saves a memcpy() and a subsequent clearing of the target buffer. decode_cabac+decode_mb for a sample file (CAPM3_Sony_D.jsv) goes from 6121.4 to 6095.5 cycles, i.e. 26 cycles faster. Signed-off-by: Martin Storsjö <martin@martin.st>
* h264: deMpegEncContextizeAnton Khirnov2013-02-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the changes are just trivial are just trivial replacements of fields from MpegEncContext with equivalent fields in H264Context. Everything in h264* other than h264.c are those trivial changes. The nontrivial parts are: 1) extracting a simplified version of the frame management code from mpegvideo.c. We don't need last/next_picture anymore, since h264 uses its own more complex system already and those were set only to appease the mpegvideo parts. 2) some tables that need to be allocated/freed in appropriate places. 3) hwaccels -- mostly trivial replacements. for dxva, the draw_horiz_band() call is moved from ff_dxva2_common_end_frame() to per-codec end_frame() callbacks, because it's now different for h264 and MpegEncContext-based decoders. 4) svq3 -- it does not use h264 complex reference system, so I just added some very simplistic frame management instead and dropped the use of ff_h264_frame_start(). Because of this I also had to move some initialization code to svq3. Additional fixes for chroma format and bit depth changes by Janne Grunau <janne-libav@jannau.net> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* Drop DCTELEM typedefDiego Biurrun2013-01-22
| | | | | | It does not help as an abstraction and adds dsputil dependencies. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* h264: check for invalid zeros_left before writingRonald S. Bultje2012-12-08
| | | | | | | Prevent an invalid write into coeffs[scantable[-1]] if zeros_left itself was an invalid VLC code (and thus -1). Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* h264: fix invalid pointer arithmeticMans Rullgard2012-10-27
| | | | | | | | | | | | Subtracting a (positive) value from the address of an array violates C99 section 6.5.6: If both the pointer operand and the result point to elements of the same array object, or one past the last element of the array object, the evaluation shall not produce an overflow; otherwise, the behavior is undefined. Signed-off-by: Mans Rullgard <mans@mansr.com>
* h264: don't touch H264Context->ref_count[] during MB decodingRonald S. Bultje2012-10-05
| | | | | | | | | The variable is copied to subsequent threads at the same time, so this may cause wrong ref_count[] values to be copied to subsequent threads. This bug was found using TSAN. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* h264: Factorize declaration of mb_sizes array.Diego Biurrun2012-04-05
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* h264: disallow constrained intra prediction modes for luma.Ronald S. Bultje2012-02-09
| | | | | | | | | | | Conversion of the luma intra prediction mode to one of the constrained ("alzheimer") ones can happen by crafting special bitstreams, causing a crash because we'll call a NULL function pointer for 16x16 block intra prediction, since constrained intra prediction functions are only implemented for chroma (8x8 blocks). Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
* cosmetics: Remove extra newlines at EOFAlex Converse2012-01-27
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* doxygen: misc consistency, spelling and wording fixesDiego Biurrun2011-12-12
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* h264: 4:2:2 intra decoding supportBaptiste Coudurier2011-10-21
| | | | | Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* h264: fix invalid shifts in init_cavlc_level_tab()Mans Rullgard2011-10-11
| | | | | | | | The level_code expression includes a shift which is invalid in those cases where the value is not used. Moving the calculation to the branch where the result is used avoids these. Signed-off-by: Mans Rullgard <mans@mansr.com>
* Eliminate FF_COMMON_FRAME macro.Diego Biurrun2011-07-11
| | | | | FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied to struct Picture. Replace by an embedded AVFrame structure in struct Picture.
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