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Author SHA1 Message Date
Kostya Shishkov 9652d4fcfc ape: provide two additional bytes in buffer for old MAC versions 
Range coder in 3.90-3.95 overread two bytes in the final normalize.
 2013-03-15 09:50:42 +01:00
Kostya Shishkov b164d66e35 ape: make version-dependent decoding functions called via pointers 
This will help in supporting old versions, e.g. version 3.93 uses the same
range coder but different predictor and version 3.82 uses different range
coder and predictor. Also this should not make decoding newer versions slower
by introducing additional checks on versions.
 2013-03-15 09:50:42 +01:00
Kostya Shishkov b5f536d24b pnm: add high-bitdepth PGMYUV support for both encoder and decoder 2013-02-23 16:49:22 +01:00
Kostya ShishkovandAnton Khirnov 89f11f498b qtrle: fix the topmost line for 1bit 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
CC:libav-stable@libav.org
 2013-02-06 10:21:52 +01:00
Kostya ShishkovandAnton Khirnov 685e6f2e39 xxan: properly handle odd heights. 
Duplicate the last one or two chroma lines.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
CC:libav-stable@libav.org
 2013-02-06 10:21:52 +01:00
Kostya Shishkov 6d93308c0c mss2: reindent after last commit 2012-11-11 16:07:42 +01:00
Kostya ShishkovandDiego Biurrun 38fdf72580 swscale: do not forget to swap data in formats with different endianness 
Otherwise during scaling it will try to interpret input in the wrong way and
that leads to the test results disagreeing on different platforms and with
different optimizations.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-10-31 17:53:57 +01:00
Kostya Shishkov 169514c440 indeo3: do not try to output more lines than we can fit 
Internally chroma planes have multiple of four height while allocated image
planes might be smaller if CODEC_FLAG_EMU_EDGE is set. Thus we should not
output more lines of chroma than frame can accept.

Also the decoder can be safely switched to direct rendering now.
 2012-10-19 07:58:51 +02:00
Kostya Shishkov 8774d58358 bmv: get a new frame on every decode_frame(), so we can use direct rendering 2012-10-19 07:58:51 +02:00
Kostya Shishkov 4dc8c8386e vc1dec: add flush function for WMV9 and VC-1 decoders 
CC: libav-stable@libav.org
 2012-09-28 07:08:54 +02:00
Kostya Shishkov 04fc5c6bde g723_1: add comfort noise generation 2012-08-30 18:21:12 +02:00
Kostya Shishkov 7627c35a81 vc1: export some functions 
This is a preparatory step for the MSS2 decoder which needs to use
the WMV9 decoder to decode some kinds of frames.

From the patch by Alberto Delmás <adelmas@gmail.com>
 2012-08-28 07:37:06 +02:00
Kostya Shishkov 0de4a563e4 mss1: move code that will be reused by MSS2 decoder into separate file 2012-08-27 18:12:10 +02:00
Kostya Shishkov 49df339f4b mss1: merge decode_intra() and decode_inter() 
They have most of their code in common.
 2012-08-27 18:11:50 +02:00
Kostya Shishkov 84f9d78a96 fate: add G.723.1 decoder tests 2012-08-09 19:35:47 +02:00
Kostya Shishkov e78e6c37ef g723_1: clip argument for 15-bit version of normalize_bits() 
It expects maximum value to be 32767 but calculations in scale_vector()
which uses this function can give it ABS(-32768) which leads to wrong
result and thus clipping is needed.
 2012-08-08 13:24:19 +02:00
Kostya Shishkov f86b2f3661 g723_1: use all LPC vectors in formant postfilter 
Due to some mistake LPC vector for the first subframe was used for all
subframes instead of their own LPC vectors.
 2012-08-08 13:23:22 +02:00
Kostya Shishkov 8f2aa89a5d mpc8: do not leave padding after last frame in buffer for the next decode call 2012-08-08 09:11:38 +02:00
Kostya Shishkov d3e0766fc0 g723_1: scale output as supposed for the case with postfilter disabled 2012-08-03 07:07:07 +02:00
Kostya Shishkov 94bfdfd6f0 g723_1: increase excitation storage by 4 
Fixed codebook mode in 5300 rate may write up to SUBFRAME_LEN + 4 and
that is considered normal by the reference decoder. Without that additional
padding it might overwrite first elements of LPC history.
 2012-08-03 07:07:07 +02:00
Kostya Shishkov 802bcdcb2f g723_1: fix upper bound parameter from inverse maximum autocorrelation 2012-08-03 07:07:07 +02:00
Kostya Shishkov 8ddadea171 g723_1: make scale_vector() behave like the reference 2012-08-03 07:07:07 +02:00
Kostya Shishkov 8772d2511a g723_1: fix off-by-one error in normalize_bits() 2012-08-03 07:07:07 +02:00
Kostya Shishkov 7f92db14f9 g723_1: save/restore excitation with offset to store LPC history 
The same buffer with saved data is used later in LPC reconstruction, so
it should have some head space for LPC history.
 2012-08-03 07:07:06 +02:00
Kostya Shishkov 0cf7d849ff tscc2: fix typo in array index 2012-07-27 07:34:38 +02:00
Kostya Shishkov 1470ce21ce Bump libavcodec and libavformat minor versions for G.723.1 decoder and demuxer 2012-07-22 08:43:12 +02:00
Kostya Shishkov 4cfb0d871d tscc2: do not add/subtract 128 bias during DCT 
It turns out that the reference decoder subtracts 128 from DC during block
decode but adds it back during reordering block with zigzag pattern.
Transforming block with incorrect DC caused heavy visual artifacts for
many quantisers.
 2012-07-18 07:05:59 +02:00
Kostya Shishkov 3c6c19184c tscc2: fix typo in DCT 2012-07-18 07:05:53 +02:00
Kostya Shishkov 0b40153d20 tscc2: DCT output should not be clipped 
This fixes decoding some TSCC2 files with large quantisers.
 2012-07-17 07:21:24 +02:00
Kostya Shishkov 5b7e3a195d MS Expression Encoder Screen decoder 2012-07-13 06:59:48 +02:00
Kostya Shishkov 781888da89 TechSmith Screen Codec 2 decoder 2012-07-11 07:29:05 +02:00
Kostya Shishkov ed219ed366 mss1: fix decoding masked regions in interframes 
Spotted by Alberto Delmás
 2012-07-10 13:58:05 +02:00
Kostya Shishkov 5467742232 mss3: use standard zigzag table 2012-07-09 18:17:51 +02:00
Kostya Shishkov acfb6b6cf8 mss3: split DSP functions that are used in MTS2(MSS4) into separate file 2012-07-09 18:17:51 +02:00
Kostya Shishkov 1f061da529 mss3: add forgotten 'static' qualifier for private table 2012-07-06 11:37:35 +02:00
Kostya Shishkov edf35d8342 MS ATC Screen (aka MSS3) decoder 2012-07-02 07:14:44 +02:00
Kostya Shishkov 15358ade15 mss1: validate number of changeable palette entries 2012-06-27 18:05:58 +02:00
Kostya Shishkov 8f5d573a83 mss1: report palette changed when some additional colours were decoded 2012-06-27 18:05:58 +02:00
Kostya Shishkov 005c80b645 MS Screen 1 decoder 2012-06-20 19:08:10 +02:00
Kostya Shishkov 19be0f3ca6 iac: add missing dependency 2012-06-10 06:50:10 +02:00
Kostya Shishkov cac4760bf4 iac: generate codec tables as they are supposed to be 
Unlike its predecessor, Indeo Audio codec generates tables depending on
sampling rate. Previously decoder used pre-generated tables for 22050 Hz
which obviously doesn't work with other frequencies.

Many thanks to Maxim Poliakovsky for providing all needed information
for this.
 2012-06-09 08:38:51 +02:00
Kostya Shishkov e1a3fa5d3a indeo4: handle frame type 1 properly 
It turns out that this frame type is actually intra and should be used as
a reference for interframes too.
 2012-06-09 08:38:31 +02:00
Kostya Shishkov c6061443f7 Indeo Audio decoder 2012-06-05 18:30:54 +02:00
Kostya Shishkov 34271cabac imc: make IMDCT support stereo output 
This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
 2012-06-05 18:28:44 +02:00
Kostya Shishkov c45e2da617 imc: move channel-specific data into separate context 
This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
 2012-06-05 18:28:44 +02:00
Kostya Shishkov b56825c40e mpc8: fix maximum bands handling 
In Musepack SV8 codec property tell the maximum nonzero band, but every
frame codes maximum band as a limit (i.e. strictly less than given value).
Synthesis also expects maximum nonzero band, so there's a need to convert
frame maximum band limit value.
 2012-06-05 06:55:57 +02:00
Kostya Shishkov 96fadfb158 bmv: add stricter checks for invalid decoded length 
This makes decoder handle random data passed as BMV frame data.
 2012-06-03 15:26:11 +02:00
Kostya Shishkov d073f122ea imc: some cosmetics 2012-05-25 20:18:02 +02:00
Kostya Shishkov f05b69a79f fix typo in comment 2012-05-20 14:15:14 +02:00
Kostya Shishkov cf61aaaca1 indeo: check for invalid motion vectors 2012-05-20 11:19:48 +02:00
Kostya Shishkov 9603738221 indeo: check that band output buffer exists 2012-05-20 11:19:48 +02:00
Kostya Shishkov 23ba1503f2 indeo: clear allocated band buffers 2012-05-20 11:19:48 +02:00
Kostya Shishkov a6e4ac40a6 indeo: track tile macroblock size 2012-05-20 11:19:48 +02:00
Kostya Shishkov fe7a37c36f indeo: check custom Huffman tables for errors 2012-05-20 11:19:47 +02:00
Kostya Shishkov aa372cf470 factor out common decoding code for Indeo 4 and Indeo 5 2012-05-20 11:19:30 +02:00
Kostya Shishkov b37d945dd4 mp3: fix start band index for block type 2 in 8kHz audio 
In hybrid frames long window part ends at 36 samples for most of the cases
but at 72 for 8kHz case. For some reason decoder assumed it's 48 or even 36
samples, which caused wrong bitstream decoding for such blocks.

l3_25207.mpg from conformance suite demonstrates it the best.
 2012-05-20 10:53:21 +02:00
Kostya Shishkov 6de226a2b8 indeo3: validate new frame size before resetting decoder 2012-05-15 19:05:39 +02:00
Kostya Shishkov bc00da2701 indeo3: when freeing buffers, set pointers referencing them to NULL as well 2012-05-15 19:05:39 +02:00
Kostya Shishkov 81064a8045 indeo3: initialise pixel planes on allocation 
This prevents decoder from reading garbage from it in case of errors later.
 2012-05-15 19:05:39 +02:00
Kostya Shishkov fc417db3f1 indeo3: ensure that decoded cell data is in 7-bit range as presumed by decoder 2012-05-15 19:05:39 +02:00
Kostya Shishkov 464e9ab011 lagarith: add YUY2 decoding support 
Unlike other variants, for YUY2 we need to use different prediction:
* on line 0 for luma we should left predict starting from the second pixel
* on line 1 we should left predict first 4 pixels for luma and 2 for chroma
* median prediction employed here is taken directly from HuffYUV
 2012-05-08 07:24:31 +02:00
Kostya Shishkov fb5c1aaea6 dfa: use more meaningful return codes 2012-05-06 19:18:27 +02:00
Kostya Shishkov a390aa0ea4 eatgv: check motion vectors 2012-05-06 19:17:32 +02:00
Kostya Shishkov 1fdb5649d9 lagarith: make offset array type unsigned 
This is logical and also fixes checking for the fourth plane offset.
 2012-05-06 09:32:08 +02:00
Kostya Shishkov 8099187e89 dfa: add some checks to ensure that decoder won't write past frame end 2012-05-06 09:31:52 +02:00
Kostya Shishkov 0e23b50821 wmall: fix reconstructing audio with uncoded channels 2012-05-02 18:46:11 +02:00
Kostya Shishkov 83632cbb11 proresenc: multithreaded quantiser search 2012-04-17 07:43:59 +02:00
Kostya Shishkov a05c41acd1 mp3dec: perform I/S and M/S only when frame mode is joint stereo. 
Looks like some LAME versions produce dual stereo mode MP3s with
flags for intensity and middle stereo set. In this mode those flags
should be ignored like the reference decoder and derived ones do.
 2012-03-29 19:08:05 +02:00
Kostya Shishkov f704eb612b id3v2: add another mimetype for JPEG image 2012-03-29 15:49:06 +02:00
Kostya Shishkov 72dadaa957 utvideo: mark output picture as keyframe. 
Spotted by Антон.
 2012-03-24 20:21:33 +01:00
Kostya Shishkov 494bce6224 ralf: read Huffman code lengths without GetBitContext 
Those descriptions are stored in nibbles, so they are easy to extract.
And this way we don't need to pad tables for possible bit reader overreads.
 2012-03-24 11:53:26 +01:00
Kostya Shishkov 87818103a0 wmall: output packet only if we have decoded some samples 
Also set CODEC_CAP_DELAY to indicate that decoder may still have some
undecoded data left in internal buffer.
 2012-03-22 07:16:47 +01:00
Kostya Shishkov 1d10afd581 bink: fix typo in FFALIGN() argument 2012-03-20 18:57:51 +01:00
Kostya Shishkov 8ae28ac0f3 bink: align plane width to 8 when calculating bundle sizes 
This fixes decoding of Bink files with non-multiple-of-16 width.
 2012-03-20 16:33:57 +01:00
Kostya Shishkov 18ba94c6f9 fix space type in Changelog 2012-03-19 19:22:18 +01:00
Kostya Shishkov b8560637d9 RealAudio Lossless decoder 2012-03-19 18:46:34 +01:00
Kostya Shishkov bb39bd195a zmbv: check decompress result 
Changing flush type from Z_FINISH is needed since encoder compresses fixed
amount of data and doesn't care about writing end of stream marker.
 2012-03-19 09:21:05 +01:00
Kostya Shishkov afc2263bcc zmbv: correct indentation 2012-03-19 09:20:39 +01:00
Kostya Shishkov 6acac061ab prores: allow user to set fixed quantiser 2012-03-18 08:04:15 +01:00
Kostya Shishkov 681e726865 dca: include libavutil/mathematics.h for possibly missing M_SQRT1_2 2012-03-08 07:16:01 +01:00
Kostya Shishkov 4db4b53dc8 proresenc: give user a possibility to alter some encoding parameters 
This allows user to select quantisation matrix from different profile,
stamp frames with custom vendor string and change target bitrate.
 2012-03-04 07:35:00 +01:00
Kostya Shishkov 12b812d2e5 prores: store and retrieve extended colourspace information 
Based on the patch by Phil Barrett.
 2012-02-29 09:29:02 +01:00
Kostya Shishkov 235d693286 prores: handle 444 chroma in right order 
ProRes codes chroma blocks in 444 mode in different order than luma blocks,
so make both decoder and encoder read/write chroma blocks in right order.

Reported by Phil Barrett
 2012-02-29 09:28:34 +01:00
Kostya Shishkov 6d702dc072 proresenc: force bitrate not to exceed given limit 
Apple ProRes Format Specifications mentions target data size for every frame,
so make sure frame meets it. This also allows encoder to demand much smaller
packet sizes for output.
 2012-02-18 18:34:01 +01:00
Kostya Shishkov 5d9ad5425f prores: initialise encoder and decoder parts only when needed 2012-02-17 14:11:48 +01:00
Kostya Shishkov 17b11ffec7 proresenc: initialise 'sign' variable 2012-02-16 06:48:24 +01:00
Kostya Shishkov 1a265f6187 prores encoder 2012-02-15 07:14:51 +01:00
Kostya Shishkov 8835c2c829 prores: move data shared between decoder and encoder to common file 2012-02-15 07:14:45 +01:00
Kostya Shishkov 3ec623c22f prores: fix multithreaded decoding case when slice quantisers are not the same 
Since quantisation matrices are stored in context, decoding slices with
different quantisers in parallel leads to unpredictable content of
aforementioned matrices and wrong output picture thereof.
 2012-02-15 07:14:35 +01:00
Kostya Shishkov e6e7bfc11e wavpack: fix clipping for 32-bit lossy mode 
Reference decoder clips data before shifting it to final range and also
forces 32-bit lossy mode to be actually 24-bit lossy mode in order to be
able to perform proper clipping.
 2012-01-15 15:27:55 +01:00
Kostya Shishkov 08bab32cf1 indeo4: add some missing static and const qualifiers 
From the patch by Reimar Döffinger.
 2012-01-12 13:54:41 +01:00
Kostya Shishkov 490dcda6b6 utvideo: proper median prediction for interlaced videos 2012-01-03 17:08:49 +01:00
Kostya Shishkov 1fbd3d30ae indeo4: remove two unused variables 2011-12-29 17:42:31 +01:00
Kostya Shishkov adfe0c942e Indeo 4 decoder 
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
 2011-12-28 15:22:18 +01:00
Kostya ShishkovandAnton Khirnov 19341c58e0 Dxtory capture format decoder 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-12-10 11:58:03 +01:00
Kostya ShishkovandDiego Biurrun 1469f943ad indeo3: cosmetics 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-11-28 10:01:49 +01:00
Kostya ShishkovandRonald S. Bultje 498605b4ad vc1: select interlaced scan table by FCM element 
Interlaced videos can contain progressive frames too and now wrong scantable
is selected for them.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-11-26 18:14:07 -08:00
Kostya ShishkovandMartin Storsjö ffc638c283 lagarith: add some RGBA decoding support 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2011-11-16 10:49:51 +02:00
Kostya ShishkovandMartin Storsjö f545e00677 BMV demuxer and decoder 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2011-11-08 00:36:45 +02:00
Kostya ShishkovandAnton Khirnov 66760b30a3 cosmetics: insert some spaces in explicit enum value assignments 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-11-06 08:13:11 +01:00