FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	6a92598e14	avcodec/mpeg12dec: Redesign index checks for mpeg2_fast_decode_block_intra This fixes the speed regression from `20626f53e9` and still checks sufficiently to prevent out of allocated memory accesses due to the index Before: 1681 decicycles in mpeg2_fast_decode_block_intra, 4194238 runs, 66 skips After: 1658 decicycles in mpeg2_fast_decode_block_intra, 4194248 runs, 56 skips Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	20626f53e9	Merge commit '6d93307f8df81808f0dcdbc064b848054a6e83b3' * commit '6d93307f8df81808f0dcdbc064b848054a6e83b3': mpeg12: check scantable indices in all decode_block functions Benchmarks Before: 1878 decicycles in mpeg2_decode_block_non_intra, 8388487 runs, 121 skips 1700 decicycles in mpeg2_decode_block_intra, 4194239 runs, 65 skips 1808 decicycles in mpeg2_fast_decode_block_non_intra, 8388492 runs, 116 skips 1669 decicycles in mpeg2_fast_decode_block_intra, 4194248 runs, 56 skips -- 2056 decicycles in mpeg1_decode_block_inter, 65535 runs, 1 skips 2346 decicycles in mpeg1_decode_block_intra, 32768 runs, 0 skips 2011 decicycles in mpeg1_fast_decode_block_inter, 65533 runs, 3 skips ---------------- After: 1858 decicycles in mpeg2_decode_block_non_intra, 8388490 runs, 118 skips 1691 decicycles in mpeg2_decode_block_intra, 4194233 runs, 71 skips 1823 decicycles in mpeg2_fast_decode_block_non_intra, 8388493 runs, 115 skips 1681 decicycles in mpeg2_fast_decode_block_intra, 4194238 runs, 66 skips -- 2010 decicycles in mpeg1_decode_block_inter, 65535 runs, 1 skips 2322 decicycles in mpeg1_decode_block_intra, 32766 runs, 2 skips 1995 decicycles in mpeg1_fast_decode_block_inter, 65535 runs, 1 skips All benchmarks are the best scores of several runs Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	3e6088f732	avutil/internal.h: add timer.h back Without this a developer would have to add a include every time he wants to benchmark some code, this is a moderate inconvenience. This reverts the specific hunk from `fb0c9d41d6` Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	965fa6b0d9	Merge commit 'fb0c9d41d685abb58575c5482ca33b8cd457c5ec' * commit 'fb0c9d41d685abb58575c5482ca33b8cd457c5ec': avutil: remove timer.h include from internal.h Conflicts: libavcodec/ffv1dec.c libavutil/internal.h Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	53167ecfdb	avcodec/huffyuv: support AV_PIX_FMT_YUV(A)4XYP16 and GRAY16 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Janne Grunau	6d93307f8d	mpeg12: check scantable indices in all decode_block functions Add checks to the fast functions used with CODEC_FLAGS2_FAST and move the check for all other functions to before the invalid memory is accessed. Fixes https://trac.videolan.org/vlc/ticket/9713 with CODEC_FLAGS2_FAST. CC: libav-stable@libav.org	11 years ago
Janne Grunau	fb0c9d41d6	avutil: remove timer.h include from internal.h Added libavutil/timer.h include to all files with {START,STOP}_TIMER.	11 years ago
Michael Niedermayer	214a3b8bf9	avfilter/vf_scale: simplify alignment code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	1e48c39ece	avfilter/vf_scale: do aspect ratio and scale factor compensation together Fixes rounding error Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	682ddb89cf	Merge branch 'scale-filter-factor' of https://github.com/lkiesow/FFmpeg * 'scale-filter-factor' of https://github.com/lkiesow/FFmpeg: Documentation for scale filter factor Documentation for scale filter factor Fixed factor for scale filter Factors for scale filter Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	018e2b57ca	avcodec/libx264: also consider ticks per frame for fps/timebase setup Setting fps = 1/timebase is not correct Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Clément Bœsch	5f4d04d084	x86/lossless_videodsp: silly one-line cosmetic.	11 years ago
Lars Kiesow	c49b036096	Documentation for scale filter factor	11 years ago
Lars Kiesow	69b1d1d99b	Documentation for scale filter factor	11 years ago
Lars Kiesow	e395f8de5a	Fixed factor for scale filter	11 years ago
Lars Kiesow	7fc4c18463	Factors for scale filter	11 years ago
Clément Bœsch	5267e85056	x86/lossless_videodsp: use common macro for add and diff int16 loop.	11 years ago
Clément Bœsch	cddbfd2a95	x86/lossless_videodsp: simplify and explicit aligned/unaligned flags	11 years ago
Ramiro Polla	78a9f185eb	lavfi/drawtext: add option for drawing border around text Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Ramiro Polla	222fb8276d	lavfi/drawtext: get bitmap from glyph in a separate step This change makes it possible to transform the glyph or get its border before turning it into a bitmap. Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	5554c6dd45	Merge remote-tracking branch 'rbultje/vp9-simd' * rbultje/vp9-simd: vp9: fix memory corruption if header decoding fails after size change. vp9/x86: use explicit register for relative stack references. vp9/x86: iwht4x4 (lossless) mmx. vp9/x86: 4x4 iadst SIMD (ssse3) variants. vp9/x86: 8x8 iadst SIMD (ssse3/avx) variants. Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	4b84a69ebb	Merge remote-tracking branch 'qatar/master' * qatar/master: dxtory: compressed RGB555/RGB565 decoding support Conflicts: libavcodec/dxtory.c Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	2d0d1f7eb3	Merge commit '0e1ad2f591b87e944550c15b54e54f8189743289' * commit '0e1ad2f591b87e944550c15b54e54f8189743289': dxtory: add more compressed and uncompressed modes Conflicts: libavcodec/dxtory.c Merged-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Ronald S. Bultje	4147b337c1	vp9: fix memory corruption if header decoding fails after size change.	11 years ago
Ronald S. Bultje	c9e6325ed9	vp9/x86: use explicit register for relative stack references. Before this patch, we explicitly modify rsp, which isn't necessarily universally acceptable, since the space under the stack pointer might be modified in things like signal handlers. Therefore, use an explicit register to hold the stack pointer relative to the bottom of the stack (i.e. rsp). This will also clear out valgrind errors about the use of uninitialized data that started occurring after the idct16x16/ssse3 optimizations were first merged.	11 years ago
Ronald S. Bultje	97474d527f	vp9/x86: iwht4x4 (lossless) mmx.	11 years ago
Ronald S. Bultje	d43efa68bd	vp9/x86: 4x4 iadst SIMD (ssse3) variants. Cycle measurements for intra itxfm_4x4_add on ped1080p.webm: idct_idct: 66 -> 67 cycles (noise measurement) idct_iadst: 199 -> 79 cycles iadst_idct: 165 -> 70 cycles iadst_iadst: 183 -> 82 cycles	11 years ago
Ronald S. Bultje	baf47020cd	vp9/x86: 8x8 iadst SIMD (ssse3/avx) variants. Cycle measurements for intra itxfm_8x8_add on ped1080p.webm: idct_idct: 133 -> 135 cycles (noise measurement) idct_iadst: 900 -> 241 cycles iadst_idct: 864 -> 215 cycles iadst_iadst: 973 -> 310 cycles	11 years ago
Michael Niedermayer	cf812d8129	avcodec/dvbsubdec: Remove unused display_list_size Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Wim Vander Schelden	af09be4f4b	Fixed a memory leak in dvbsubenc.c: sub->num_rects was reduced without freeing the associated rects. Signed-off-by: Wim Vander Schelden <lists@fixnum.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	2efdccac87	lavf/avienc: cosmetic indent Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	fa20babb46	lavf/avienc: use metadata_header_padding The muxer will write at least the number of bytes requested and possibly up to 3 bytes more. This is because the muxer writes 32-bit integers and the format requires 4-byte alignment anyway. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	67270ccd3a	lavf/id3v2enc: update comment about minimum padding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	0de03fd6a1	lavf/id3v2enc: use metadata_header_padding As with the change to flacenc this allows the user to control the amount of padding they want added to the file. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	c14b011a97	lavf/flacenc: fix comment after previous change Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	72eeb18468	lavf/flacenc: use metadata_header_padding Allows a user to control the amount, if any, of padding they want added to the file. If set to zero the block will not be written at all. If set to some positive number four more bytes will be added to the file due to the small header required for the block. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Darnley	86bee7984e	AVFormatContext: add metadata_header_padding field This field is used to store the number of bytes that should be written as padding to a metadata header of a file. For example: - The FLAC format's METADATA_BLOCK_PADDING [1] - The ID3v2 tag format's padding [2] [1] http://xiph.org/flac/format.html#metadata_block_padding [2] http://id3.org/id3v2.3.0#ID3v2_overview Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Serhii Marchuk	1d07385053	mpegts demuxer: store PMT values of DVB teletext to extradata * Using extradata by TS demuxer to store values from PMT * Support of multiple languages in one DVB teletext stream: comma separated language codes in metadata "language" field Reviewed-by: Marton Balint <cus@passwd.hu> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Serhii Marchuk	2ebee19e1e	mpegts muxer: restore PMT table of DVB teletext from extradata * Using extradata by TS muxer to correctly restore PMT table * PES_header_data_length should be always 0x24 for DVB teletext, according to DVB standard Reviewed-by: Marton Balint <cus@passwd.hu> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Serhii Marchuk	f8051bd31a	mpegts muxer: Change the default subtitle language to "und" Reviewed-by: Marton Balint <cus@passwd.hu> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
João Bernardo	290326711b	avutil/opt: Better print representation of number limits Signed-off-by: João Bernardo Oliveira <jbvsmo@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Kostya Shishkov	28e1eed3c2	dxtory: compressed RGB555/RGB565 decoding support	11 years ago
Kostya Shishkov	0e1ad2f591	dxtory: add more compressed and uncompressed modes	11 years ago
Michael Niedermayer	934bb11ad7	avcodec/mpeg12dec: fix mis-indented line Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	5f54756f7e	avcodec/mpeg12dec: Disable the checked bitstream reader Mpeg1/2 should not need it Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	76b5e99ce9	avcodec/mpeg12dec: Check for overread in mpeg_decode_slice() This is needed in case the checked bitstream reader is disabled Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	d82eccea2b	avcodec/mpeg12dec: check block index in mpeg2_fast_decode_block_non_intra() Prevents some overreads at the cost of 1 cpu cycle Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	0c8e5fb211	avcodec/mpeg12dec: Optimize mpeg1_decode_block_intra() sandybridge i7 274->260 cycles Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	0a59055167	avcodec/mpeg12dec: check for overread in mpeg1_fast_decode_block_inter() No speedloss meassured Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	746350ea0f	avcodec/mpeg12dec: Make mpeg2_fast_decode_block_intra() more robust by breaking out on invalid vlcs Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago

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