FFmpeg

Commit Graph

Author	SHA1	Message	Date
Vittorio Giovara	6a85dfc830	lavc: Replace av_dlog and tprintf with internal macros	10 years ago
Michael Niedermayer	797ba4d53b	avcodec/h264_cavlc: Drop local_ref_count This basically switches to the implementation from `f6f7d15041` which seems faster Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Anton Khirnov	7505c8dfba	h264_cavlc: constify all uses of H264Context All the variables modified by this code are either per-MB arrays or have been moved to the per-slice context	10 years ago
Anton Khirnov	e9b2383bf8	h264: move mb_mbaff into the per-slice context	10 years ago
Anton Khirnov	bc98e8c0e0	h264: move mb_field_decoding_flag into the per-slice context	10 years ago
Anton Khirnov	f42485dbce	h264: use a separate GetBitContext for slice data	10 years ago
Anton Khirnov	404a416d4b	h264: remove some remnants of data partitioning	10 years ago
Anton Khirnov	d4d9068cdf	h264: move mb_{x,y} into the per-slice context	10 years ago
Anton Khirnov	0edbe6faa7	h264: move mb_xy into the per-slice context	10 years ago
Anton Khirnov	47a0d39350	h264: move mb_skip_run into the per-slice context	10 years ago
Anton Khirnov	e7226984ac	h264: move [{top,left}_]cbp into the per-slice context	10 years ago
Anton Khirnov	bf03a878a7	h264: move mb[_{padding,luma_dc}] into the per-slice context	10 years ago
Anton Khirnov	b063582e0c	h264: move intra_pcm_ptr into the per-slice context	10 years ago
Anton Khirnov	95eb35f305	h264: move the ref lists variables into the per-slice context	10 years ago
Anton Khirnov	ed451a08a4	h264: move sub_mb_type into the per-slice context	10 years ago
Anton Khirnov	56febc993b	h264: move the slice type variables into the per-slice context	10 years ago
Anton Khirnov	e6287f077c	h264: move {mv,ref}_cache into the per-slice context	10 years ago
Anton Khirnov	f69574cf7a	h264: move non_zero_count_cache into the per-slice context	10 years ago
Anton Khirnov	64c81b2cd0	h264: move *_samples_available into the per-slice context	10 years ago
Anton Khirnov	7d8154edd5	h264: move intra4x4_pred_mode[_cache] into the per-slice context	10 years ago
Anton Khirnov	8b00f4df20	h264: move some neighbour information into the per-slice context	10 years ago
Anton Khirnov	4bd5ac200d	h264: move {chroma,intra16x16}_pred_mode into the per-slice context	10 years ago
Anton Khirnov	5355ed6b20	h264: move {prev,next}_mb_skipped into the per-slice context	10 years ago
Anton Khirnov	d231e84b06	h264: move the quantizers into the per-slice context	10 years ago
Vittorio Giovara	d24e9a99a4	h264 does not depend on mpegvideo any more	11 years ago
Vittorio Giovara	e0c16e4e32	mpegvideo: move mpegvideo formats-related defines to mpegutils.h	11 years ago
Anton Khirnov	074c769de9	h264_cavlc: check the size of the intra PCM data. Fixes invalid reads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org	11 years ago
Michael Niedermayer	4fb1221e66	h264: reduce whitespace differences to libav Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	2a61592573	avcodec: Remove some commented-out debug cruft	11 years ago
Michael Niedermayer	826b3a75cd	h264_cavlc: fix reading skip run Fixes Ticket2606 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	10ece44d09	h264_cavlc: fix assertion failure due to reading too long vlc Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	23e85be58f	h264: add a parameter to the CHROMA444 macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	e962bd08ee	h264: add a parameter to the CHROMA422 macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	6d2b6f21eb	h264: add a parameter to the CABAC macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	7bece9b22f	h264: add a parameter to the FRAME_MBAFF macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	da6be8fcec	h264: add a parameter to the MB_FIELD macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	82313eaa34	h264: add a parameter to the MB_MBAFF macro. This way it does not look like a constant.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Ronald S. Bultje	7ebfb466ae	h264: Don't store intra pcm samples in h->mb 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>	12 years ago
Ronald S. Bultje	c63f9fb37a	h264: don't store intra pcm samples in h->mb. 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: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	2c54155407	h264: deMpegEncContextize 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>	12 years ago
Diego Biurrun	88bd7fdc82	Drop DCTELEM typedef It does not help as an abstraction and adds dsputil dependencies. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	12 years ago
Ronald S. Bultje	ddd7559ad9	h264: check for invalid zeros_left before writing 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>	12 years ago
Michael Niedermayer	8a03a60b4a	h264: Check gray scale CBP, fix out of array accesses. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	c4cccc8d3f	h264: fix invalid pointer arithmetic 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>	12 years ago
Ronald S. Bultje	2e59210edf	lavc/h264: don't touch H264Context->ref_count[] during MB decoding. 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 and Helgrind. Original patch by Ronald, adapted with a local_ref_count by Clément, following the suggestion of Michael Niedermayer. Signed-off-by: Clément Bœsch <clement.boesch@smartjog.com>	12 years ago
Ronald S. Bultje	f6f7d15041	h264: don't touch H264Context->ref_count[] during MB decoding 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>	12 years ago
Michael Niedermayer	710600077d	h264_cavlc: switch forgotten assert to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	506ffa793f	h264_cabac: switch to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	39f0a45a1a	h264_cavlc: check prefix before using it. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago

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145 Commits (8ca170a78ab6e50f44d27d8a6b4ad7ba1ed81f0c)