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Tim Walker
149438cfe5 dca: improve default stereo downmix coefficients. 
Previous coefficients were producing a non-normalized, incorrect Lt/Rt downmix.

The new coefficients produce a standard Lo/Ro downmix with 3dB attenuation.

This should match the typical default coefficients used by DTS encoders.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 22:02:53 +01:00
Tim Walker
44b17d794a dca: extract core substream's embedded downmix coeffcient codes, if present. 
As per ETSI TS 102 114 V1.4.1 specification.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 22:02:53 +01:00
Tim Walker
27245b4e1b dca: remove embedded downmix coefficient extraction. 
It was based on an old, seemingly incorrect specification, so default
coefficients were always used anyway.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 22:02:50 +01:00
Tim Walker
b6d5e6aa10 dca: convert dca_default_coeffs to float. 
Easier to read, modify, and avoids relying on an outdated table.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 21:38:22 +01:00
Tim Walker
25609b63d2 dcadec: store the stereo downmix coefficients as float in the DCAContext. 
The 7-bit codes previously used are absent from the ETSI 102 114 V1.4.1 spec.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 21:35:22 +01:00
Tim Walker
89de5157b1 dcadec: implement request_channel_layout. 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-28 21:10:29 +01:00
Diego Biurrun
cf7860db60 x86: dsputil: Suppress deprecation warnings for XvMC bits 
These parts are scheduled for removal on the next version bump.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2013-11-28 16:04:30 +01:00
Michael Niedermayer
d1916d13e2 dsputil/pngdsp: fix signed/unsigned type in end comparison 
Fixes out of array accesses and integer overflows.
 2013-11-28 15:37:55 +01:00
Vittorio Giovara
0673ede985 configure: add strip flags checks 
This will check if -wN '..@*' is available and fall back on -x if not;
when none are available, do not run strip at all to prevent removing
functions that might be actually needed.
 2013-11-28 15:37:10 +01:00
Anton Khirnov
8733799392 h263dec: sanitize a condition. 
Call ff_mpeg4_decode_picture_header() only when the decoder has the
MPEG4 codec id, not based on a vaguely related value of h263_pred.
 2013-11-27 22:24:50 +01:00
Anton Khirnov
4d388c0cd0 h264_refs: make sure not to write over the bounds of the default ref list 
Fixes invalid writes.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-27 22:24:40 +01:00
Derek Buitenhuis
fa515c2088 doc/platform: Update to reflect current MSVC build situation 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-11-27 13:39:03 +00:00
Andreas Unterweger
10421bcf0a Add an audio transcoding example. 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-27 09:20:05 +01:00
Diego Biurrun
92f0abb27f build: Check for pod2man instead of perl for manual page generation 
Some systems provide Perl without pod2man.
 2013-11-26 13:49:06 -08:00
Diego Biurrun
4da3f410d1 configure: Restore doc option to disable building the documentation 
Also add appropriate dependency declarations for perl and texi2html.
 2013-11-26 13:49:06 -08:00
Martin Storsjö
dc80e2f7a5 Makefile: Fix building programs on systems with a nonempty executable suffix 
This fixes leftover issues from 14abeaa4 which caused make
rules for programs to not match up properly when the executable
suffix was nonempty.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-26 23:31:09 +02:00
Anton Khirnov
c6080d8900 lavc: remove mp3_header_(de)compress bitstream filters 
They mangle the mp3 header in a non-standard way to save a few bytes.
People who care about space so much should just use a more efficient
codec.
 2013-11-26 09:27:50 +01:00
John Stebbins
1eaac1d6f7 mpeg12dec: Extract CC user data into frame side data 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-26 08:37:22 +01:00
Kostya Shishkov
a16577d985 MSN Audio support 
This is essentially a MS GSM decoder extension that supports more
sampling rates and lower bitrates.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-26 08:31:10 +01:00
Kostya Shishkov
56d061ce9d metasound: add last missing modes (8kHz @ 6kbps per channel) 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-26 08:29:42 +01:00
Kostya Shishkov
de44dfc7c0 vc1: Reset numref if fieldmode is not set 
There are samples in the wild with B-frames and P-frames with different
interlace mode.

CC: libav-stable@libav.org
Reported-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-11-26 00:34:12 +01:00
Diego Biurrun
5145ccf02b aacsbr: Add some const casts to silence warnings in ff_sbr_apply() 2013-11-25 21:04:29 +01:00
Diego Biurrun
ab81f24ad4 build: Integrate multilibrary examples into the build system 
This includes moving libavformat/output-example to doc/examples/output.
 2013-11-25 11:57:29 -08:00
Diego Biurrun
14abeaa43d build: Separate building programs linking against libav* from building av* 
This will allow cleaner integration of building example programs.
 2013-11-25 11:57:29 -08:00
Martin Storsjö
09cd0a3176 doc: Add the host executable suffix for the print_options dependency 
This fixes building on windows.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-25 11:20:55 +02:00
Derek Buitenhuis
dedfa00107 build: Import makedef script from c99-to-c89 
This allows MSVC 2013 and ICL to build with no external
dependencies.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-11-24 19:36:09 +00:00
Diego Biurrun
8f8bc92365 Add missing #includes for *INT64_MAX and *INT64_C 2013-11-23 21:55:52 +01:00
Diego Biurrun
0eeeb9647e mpegaudiodec: Consistently handle fixed/float templating 2013-11-23 21:36:49 +01:00
Tim Walker
48b24bd2d2 ac3dec: Fix out-of-array read 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-11-23 21:36:49 +01:00
Diego Biurrun
f187557ab4 build: more fine-grained dependencies for documentation build tools 
Perl is needed to build the manual pages, texi2html for the HTML pages.
 2013-11-23 09:45:06 -08:00
Alexandra Khirnova
6f270da61b libschroedingerenc: do not assert on values from external libraries 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-23 12:08:53 +01:00
Anton Khirnov
7671dd7cd7 avconv: add support for VDPAU decoding 2013-11-23 11:55:53 +01:00
Anton Khirnov
07fd0a2219 avconv: add infrastructure for using hwaccels 2013-11-23 11:55:43 +01:00
Tim Walker
d4df02131b ac3dec: Remove write-only channel_layout field from AC3DecodeContext 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-11-22 23:27:34 +01:00
Tim Walker
b532854622 ac3: implement request_channel_layout. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-11-22 23:27:33 +01:00
Diego Biurrun
c16bfb147d swscale: x86: Consistently use lowercase function name suffixes 2013-11-22 23:01:51 +01:00
Martin Storsjö
56c2337004 hls: Avoid reading outside of the allocated array 
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-22 14:27:10 +02:00
Martin Storsjö
8c92909814 hls: Check whether the AVIOContext contains a new redirected URL 
This allows both the main playlist itself as well as the variant
playlists to handle redirects combined with relative URLs.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-22 14:27:08 +02:00
Martin Storsjö
be4edda673 http: Expose the content location via an AVOption 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-22 14:27:07 +02:00
Zhang Rui
393d80cc27 http: Support relative URL redirection 
In RFC 2616, this was explicitly said to be an absolute URL,
while in an upcoming draft [1] it is allowed to be relative as well.

[1] http://tools.ietf.org/html/draft-ietf-httpbis-p2-semantics-25#section-7.1.2

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-22 14:27:04 +02:00
Martin Storsjö
76267ecc82 http: Remove an unrelated and mistakenly set AVOption unit name 
This was due to a copypaste oversight.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-11-22 14:27:01 +02:00
Diego Biurrun
0ba8ba165b aacps: Adjust some const qualifiers to suppress warnings 2013-11-22 08:21:38 +01:00
Anton Khirnov
430d121964 pcx: round up in bits->bytes conversion in a buffer size check 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:58:27 +01:00
Anton Khirnov
c918e08b9c truemotion1: make sure index does not go out of bounds 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:58:08 +01:00
Anton Khirnov
ce9bba5340 avidec: fix a memleak in the dv init code. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:57:58 +01:00
Anton Khirnov
de4ec972c0 vc1: fix a memleak. 
Happens on a B-frame when neither low_delay nor last_picture_ptr is set
(probably corrupted streams only).

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2013-11-21 20:57:36 +01:00
Anton Khirnov
ca41c72c6d motionpixels: clip VLC codes. 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:57:20 +01:00
Aurelien Jacobs
8b516f154a matroskadec: use correct compression parameters for current track CodecPrivate 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-11-21 20:54:55 +01:00
Anton Khirnov
30be1ea33e matroskadec: pad EBML_BIN data. 
It might be passed to code requiring padding, such as lzo decompression.

Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:54:30 +01:00
Anton Khirnov
f0259a587e h264: check buffer size before accessing it 
Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2013-11-21 20:54:20 +01:00