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50c466d609
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73 Commits

Author SHA1 Message Date
Justin Ruggles
50c466d609 g726enc: use av_assert0() for sample_rate validation 
This should never happen, but the check avoids a divide-by-zero.
 2011-11-01 21:23:03 -04:00
Justin Ruggles
9e78d8cfdf g726: treat sample rates other than 8kHz as unofficial. 2011-11-01 21:23:03 -04:00
Justin Ruggles
6e8d4a7afb g726dec: remove the sample_rate validation 2011-11-01 21:23:03 -04:00
Justin Ruggles
6ac34eed54 g726: use bits_per_coded_sample instead of bitrate to determine mode 
This requires some workarounds in the WAV muxer and demuxer. We need to write
the correct bits_per_coded_sample and block_align in the muxer. In the
demuxer, we cannot rely on the bits_per_coded_sample value, so we use the bit
rate and sample rate to determine the value.

This avoids having the decoder rely on AVCodecContext.bit_rate, which is not
required to be set by the user for decoding according to our API.
 2011-11-01 21:23:03 -04:00
Justin Ruggles
d405237bae g726: split the init function for the encoder and decoder 
This also allows for not having a decoder close function.
 2011-11-01 21:23:03 -04:00
Justin Ruggles
c8d36d254e g726: pre-calculate the number of output samples. 
Allows for checking output buffer size and simplification of decoding loop.
 2011-11-01 21:23:03 -04:00
Justin Ruggles
e61a670b53 g726: use int16_t instead of short 2011-11-01 21:23:02 -04:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Diego Elio Pettenò
d36beb3f69 Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. 
None of these symbols should be accessed directly, so declare them as
hidden.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 16:08:45 +00:00
Stefano Sabatini
5d6e4c160a Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum 
SampleFormat with AVSampleFormat.

Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-11-12 11:04:40 +00:00
Justin Ruggles
c7d89948a3 Set a constant frame size for encoding G.726 audio. 
Originally committed as revision 25107 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-09-11 19:52:09 +00:00
Reimar Döffinger
edac49daf5 Use "const" qualifier for pointers that point to input data of 
audio encoders.
This is purely for clarity/documentation purposes.

Originally committed as revision 24481 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-24 13:59:49 +00:00
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-30 23:30:55 +00:00
Reimar Döffinger
b5f09d31c2 Make sample_fmts and channel_layouts compound literals const to reduce size of 
.data section.

Originally committed as revision 19787 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-06 09:15:07 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
Stefano Sabatini
b275500706 Split bitstream.h, put the bitstream writer stuff in the new file 
put_bits.h.

Originally committed as revision 18461 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-12 08:35:26 +00:00
Thilo Borgmann
7a00bbad21 Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an 
AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows
passing of packet-specific flags from demuxer to decoder, such as the keyframe
flag, which appears necessary to playback corePNG P-frames.

Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread
"Google Summer of Code participation" on the mailinglist.

Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-07 15:59:50 +00:00
Diego Biurrun
406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences. 
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-19 15:46:40 +00:00
Aurelien Jacobs
b250f9c66d Change semantic of CONFIG_*, HAVE_* and ARCH_*. 
They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-13 23:44:16 +00:00
Diego Biurrun
f544a5fc84 Replace generic CONFIG_ENCODERS preprocessor conditionals by more specific 
CONFIG_FOO_ENCODER conditionals where appropriate.

Originally committed as revision 15174 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-03 12:33:21 +00:00
Laurent Aimar
bd10f6e149 Prevent a division by 0 in the g726 decoder when the configured samplerate is 0. 
patch by Laurent Aimar, fenrir via.ecp fr

Originally committed as revision 15160 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-02 23:09:14 +00:00
Peter Ross
fd76c37fd9 Modify all codecs to report their supported input and output sample format(s). 
Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-31 10:47:31 +00:00
Michael Niedermayer
74d9441715 Do not shift F[I] twice, it is also clearer and smaller now. 
Originally committed as revision 13818 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 11:04:31 +00:00
Michael Niedermayer
50c52d2250 Factorize c->ap += (-c->ap) >> 4 out 
Originally committed as revision 13817 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 11:00:17 +00:00
Michael Niedermayer
0e0d6cfd48 Get rid of G726Tables.bits. 
Originally committed as revision 13816 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 10:52:47 +00:00
Michael Niedermayer
05c9f3516c Copy 4 pointers to avid dozends of ptr dereferences. 
Originally committed as revision 13815 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 10:49:30 +00:00
Michael Niedermayer
fc234250b4 Does not need to be int16. 
Originally committed as revision 13814 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 10:38:20 +00:00
Michael Niedermayer
cb26c9d664 Factorize I >> (c->tbls->bits - 1) out. 
Originally committed as revision 13812 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 10:29:36 +00:00
Michael Niedermayer
73ff4f8344 1 abs() less 
Originally committed as revision 13810 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-19 10:02:39 +00:00
Michael Niedermayer
4714776b6a simplify 
Originally committed as revision 13807 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 21:09:36 +00:00
Michael Niedermayer
673a64b89b useless () 
Originally committed as revision 13806 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 21:05:07 +00:00
Michael Niedermayer
428c82cbac remove unneeded tr == 0 
Originally committed as revision 13805 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 21:00:44 +00:00
Michael Niedermayer
e079a1c94f simplify 
Originally committed as revision 13804 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 20:54:21 +00:00
Michael Niedermayer
c79c1a01a7 Get rid of the redundant AVG726Context. 
Originally committed as revision 13803 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 20:51:12 +00:00
Michael Niedermayer
ef4c5c6dba Remove the truncated bitstream handling from our g726 decoder. 
The stuff belongs in a parser.

Originally committed as revision 13802 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-18 19:18:32 +00:00
Michael Niedermayer
a0e5830ac5 Change iquant tables to int16. 
Originally committed as revision 13798 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-17 14:03:00 +00:00
Michael Niedermayer
6aa37bcf19 simplify 
Originally committed as revision 13797 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-17 13:46:59 +00:00
Michael Niedermayer
cf409a6fec Get rid of useless wrapper function. 
Originally committed as revision 13796 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-17 13:40:40 +00:00
Michael Niedermayer
170efe1f9d Do not inline g726_iterate() the function is big so its inlining will 
not help speedwise IMHO.
.o size changes from 70k -> 49k

Originally committed as revision 13793 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-17 00:09:42 +00:00
Michael Niedermayer
aeaa7c3d00 Replace i2f(0) by the actual thing done, gcc is not an optimizing compiler. 
a little over 1kb smaller .o

Originally committed as revision 13792 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:57:12 +00:00
Michael Niedermayer
8112075415 Remove redundant zeroing (the context is memset(0)). 
Originally committed as revision 13791 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:53:34 +00:00
Michael Niedermayer
e3cafac638 Use smaller data types for tables. 
Originally committed as revision 13790 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:51:07 +00:00
Michael Niedermayer
deec52ccf2 Float11 does not need int, .o file becomes smaller and the code might 
be faster.

Originally committed as revision 13789 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:34:15 +00:00
Michael Niedermayer
7d7a9e7f37 simplify 
Originally committed as revision 13788 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:31:23 +00:00
Michael Niedermayer
aca490777f Correct validity checks. 
Originally committed as revision 13787 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:23:56 +00:00
Michael Niedermayer
8b470cc542 Print sane error message for channels != 1. 
Originally committed as revision 13786 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:20:11 +00:00
Michael Niedermayer
35d0e16ba1 Check number of bits so we do not try to use table entries which do not exist. 
Originally committed as revision 13785 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:16:44 +00:00
Michael Niedermayer
8161c28c67 Support decoding of sample_g726.asf. 
Originally committed as revision 13784 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 23:12:50 +00:00
Michael Niedermayer
6dfcdc00b3 get_bits() outputs exactly as many bits as requested no need to mask them. 
Originally committed as revision 13782 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-16 20:42:54 +00:00