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b09c7eefb7
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14143 Commits

Author SHA1 Message Date
Justin Ruggles
b09c7eefb7 dpcm: cosmetics: rename channel_number to ch 
Make the code easier to read.
 2011-09-30 18:15:52 -04:00
Carl Eugen Hoyos
bcb1555489 dxva2_h264: pass the correct 8x8 scaling lists 
Copy the Inter 8x8 scaling list as second 8x8 matrix into DXVA2's
quantization matrix data structure instead of a potentially unset
Intra chroma scaling matrix.

Fix dxva2 decoding for some H264 samples.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-09-30 20:15:17 +02:00
Mans Rullgard
bf5d46d8e6 dca: NEON optimised high freq VQ decoding 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-30 19:01:23 +01:00
Justin Ruggles
6326afd5e9 avcodec: reject audio packets with NULL data and non-zero size 
There is no valid reason the user should ever send such packets in the
first place, but the documentation for CODEC_CAP_DELAY states that the
codec is guaranteed not to get a NULL packet unless that capability is
set. That isn't true without preventing this case.
 2011-09-30 11:02:50 -04:00
Joakim Plate
dcce09d64b dxva: Add ability to enable workaround for older ATI cards 
The workaround needs to be enabled per PCI ID which cannot be detected inside
libavcodec. So add a flag to manually enable the alternate behavior.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-09-30 11:17:53 +02:00
Justin Ruggles
e562fbd003 adpcm: move codec-specific variable declarations to the sections for the corresponding codecs. 2011-09-29 16:54:01 -04:00
Justin Ruggles
9662539c10 adpcm: check buffer size in Funcom ISS decoder before reading header. 
Also use the post-header data size to control termination of the main
decoding loop.
 2011-09-29 16:54:01 -04:00
Justin Ruggles
ba5d2890d7 adpcm: simplify reading of Funcom ISS frame header. 2011-09-29 16:54:01 -04:00
Justin Ruggles
5c9eb4fabb adpcm: check buffer size in IMA DK4 decoder before reading header. 
Also use the post-header data size to control termination of the main
decoding loop.
 2011-09-29 16:54:01 -04:00
Justin Ruggles
a57ea1a87e adpcm: simplify reading of IMA DK4 frame header. 2011-09-29 16:54:01 -04:00
Justin Ruggles
8114f94ac9 adpcm_ms: clean up reading of predictor coefficients 2011-09-29 16:54:01 -04:00
Justin Ruggles
943f4db552 adpcm_4xm: process planar packets sequentially rather than simultaneously. 
Also properly clip the right channel step_index.
 2011-09-29 16:54:00 -04:00
Justin Ruggles
119974b164 adpcm_ima_wav: process channel-interleaved blocks sequentially rather than simultaneously. 
Speeds up the ADPCM IMA WAV decoder by 15-20% overall.
 2011-09-29 16:54:00 -04:00
Justin Ruggles
7c287b18a0 adpcm: update reference links 
Add Multimedia Wiki link.
Mark dead links with [dead]. Some can still be accessed through archive.org.
Update URLs for pages which have moved.
Replace duplicated links in adpcmenc.c with a note to see the ADPCM decoder
reference documents.
 2011-09-29 16:54:00 -04:00
Justin Ruggles
ac94b8bcc6 adpcm: simplify packet size bounds checking in the ADPCM IMA QT decoder. 
This is easier to understand. It also avoids returning existing samples mixed
with new samples when the packet is too small.
 2011-09-29 16:54:00 -04:00
Justin Ruggles
de0b586a87 adpcm: simplify and speed up several ADPCM decoders. 2011-09-29 16:54:00 -04:00
Justin Ruggles
5a9ed7c110 adpcm: pretty-print tables 2011-09-29 16:54:00 -04:00
Alex Converse
fcbe421cee prores: Handle 0 or fewer bits left 
show_bits() is undefined when the number of bits is less than or equal to
zero.
 2011-09-29 09:45:57 -07:00
Mans Rullgard
bf00a73ace dca: clear inactive subbands only once in qmf_32_subbands() 
Writing zeros to the high entries in the array need only be
done once as the cutoff position is constant throughout the
loop.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-29 12:34:17 +01:00
Mans Rullgard
baf6b738f2 ARM: NEON optimised vector_fmac_scalar() 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-28 15:56:09 +01:00
Mans Rullgard
a92a1b93b4 dca: use vector_fmac_scalar from dsputil 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-28 15:56:09 +01:00
Mans Rullgard
fcca826a63 dsputil: add vector_fmac_scalar() 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-28 15:56:08 +01:00
Justin Ruggles
3d371f417e ws_snd: misc cosmetic clean-ups 2011-09-26 16:23:58 -04:00
Justin Ruggles
659c719bc7 ws_snd: remove the 2-bit ADPCM table and just subtract 2 instead. 2011-09-26 16:23:15 -04:00
Justin Ruggles
618b067d21 ws_snd: use memcpy() and memset() instead of loops 2011-09-26 16:23:14 -04:00
Justin Ruggles
6896aa7a38 ws_snd: use samples pointer for loop termination instead of a separate 
iterator variable.
 2011-09-26 16:23:14 -04:00
Justin Ruggles
6a818cb3ff ws_snd: make sure number of channels is 1 2011-09-26 16:23:10 -04:00
Justin Ruggles
417364ce1f ws_snd: add some checks to prevent buffer overread or overwrite. 2011-09-26 15:49:50 -04:00
Justin Ruggles
2322ced8da ws_snd: decode to AV_SAMPLE_FMT_U8 instead of S16. 
8-bit unsigned is the native sample format.
 2011-09-26 15:49:50 -04:00
Justin Ruggles
4c5e7b27d5 flacdec: fix buffer size checking in get_metadata_size() 
Adds an additional check before reading the next block header and avoids a
potential integer overflow when checking the metadata size against the
remaining buffer size.
 2011-09-26 15:29:45 -04:00
Nicolas George
4ca59d1948 oggdec: add support for Xiph's CELT codec 
This patch also introduces CODEC_ID_CELT.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-09-26 13:51:29 +02:00
Justin Ruggles
88f908fbdc cosmetics: reindent and pretty-print 2011-09-25 14:38:08 -04:00
Justin Ruggles
8febd6afbc libgsm: split init and close fuctions for encoder and decoder. 
The decoder shouldn't be allocating coded_frame. It's also cleaner to split
them than to check avctx->codec->encode and avctx->codec->decode.
 2011-09-25 14:38:08 -04:00
Mans Rullgard
6e4a35ced9 ppc: fix 32-bit PIC build 
On 32-bit ppc, the GOT pointer must be loaded manually.
This adds a "get_got" assembler macro to compute the
GOT address.  The "movrel" macro is updated to take an
additional parameter containing the GOT address since
no register is reserved for this purpose on ppc32.
These changes have no effect on ppc64 builds.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-09-25 17:27:48 +01:00
Justin Ruggles
4568c2bf97 vmdaudio: fix decoding of 16-bit audio format. 
The initial sample of each block is raw 16-bit PCM, not DPCM.
Fixes decoding of all samples in:
http://streams.videolan.org/samples/game-formats/sierra-vmd/Lighthouse/
 2011-09-25 10:39:00 -04:00
Laurent Aimar
d1186ff72d h264: check for out of bounds reads in ff_h264_decode_extradata(). 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-09-25 15:04:58 +02:00
Diego Biurrun
8671488799 Use explicit struct initializers for AVCodec declarations. 2011-09-24 12:11:19 +02:00
Justin Ruggles
9ff6d0791b adpcmenc: Set bits_per_coded_sample 2011-09-23 20:54:29 -04:00
Baptiste Coudurier
b304244b54 adpcmenc: fix QT IMA ADPCM encoder 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-23 20:54:29 -04:00
Baptiste Coudurier
bf334535b4 adpcmdec: Fix QT IMA ADPCM decoder 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-23 20:54:28 -04:00
Peter Ross
3a549eb82b permit decoding of multichannel ADPCM_EA_XAS 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-09-23 20:54:28 -04:00
Reimar Döffinger
ffe92ff9f0 Fix input buffer size check in adpcm_ea decoder. 
Unfortunately the output buffer size check assumes that the
input buffer is never over-consumed, thus this actually
also allowed to write outside the output buffer if "lucky".

Based on:
git.videolan.org/ffmpeg.git
commit 701d0eb185
 2011-09-23 20:54:28 -04:00
Sean McGovern
c2d3f56107 fft: avoid a signed overflow 
As a signed integer, 1<<31 overflows, so force it to unsigned.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2011-09-23 17:02:58 -07:00
Luca Barbato
d554b33efe ratecontrol: update last_qscale_for sooner 
In order to make ratecontrol converge properly update the
last_qscale_for values when populating the qscale array.

It fixes the issue reported on
http://lists.libav.org/pipermail/libav-tools/2011-September/000050.html
 2011-09-22 17:25:48 -07:00
Diego Biurrun
167d3b1673 prores: return more meaningful error values 2011-09-23 01:42:13 +02:00
Diego Biurrun
2161282439 prores: improve error message wording 2011-09-23 01:42:12 +02:00
Diego Biurrun
27ba121e90 prores: cosmetics: prettyprinting, drop useless parentheses 2011-09-23 01:42:12 +02:00
Diego Biurrun
2983f1f3be prores: lowercase AVCodec name entry 
All other codecs use lowercase names in that field.
 2011-09-23 01:42:11 +02:00
Justin Ruggles
1993c6849c 8svx/iff: fix decoding of compressed stereo 8svx files. 
Make the iff demuxer send the whole audio chunk to the decoder as a
single packet and move stereo interleaving from the iff demuxer to the
decoder.

Based on a patch by Stefano Sabatini.
git.videolan.org/ffmpeg.git
commit e280a4da2a
 2011-09-22 14:11:34 -04:00
Justin Ruggles
fda459cee7 8svx: log an error message if output buffer is too small 
Based on a patch by Stefano Sabatini.
git.videolan.org/ffmpeg.git
commit e280a4da2a
 2011-09-22 14:11:34 -04:00