Justin Ruggles
8999944ecb
Split out counting of frame bits into a separate function.
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Originally committed as revision 26002 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:40 +00:00
Justin Ruggles
33a7d549e8
cosmetics: vertical alignment
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Originally committed as revision 26001 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:36 +00:00
Justin Ruggles
d3325d555b
Only calculate num_exp_groups once.
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Originally committed as revision 26000 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:33 +00:00
Justin Ruggles
dc0bc0f84e
Check for bit allocation error in ac3_encode_frame().
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Move error log printout to ac3_encode_frame().
Originally committed as revision 25999 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:30 +00:00
Justin Ruggles
f94bacc538
Split out grouping of exponents into a separate function.
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Originally committed as revision 25998 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:26 +00:00
Justin Ruggles
b6a1e5236e
Split out mantissa quantization into separate functions.
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Originally committed as revision 25997 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:23 +00:00
Justin Ruggles
5b44ede0ba
cosmetics: rearrange some functions
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Originally committed as revision 25996 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:20 +00:00
Justin Ruggles
d7da80806c
Reverse the exponent & exponent strategy array arrangement to simplify the
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per-channel exponent strategy decision. This will also make it easier to
plug-in other exponent strategy algorithms.
Originally committed as revision 25995 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:17 +00:00
Justin Ruggles
67d979fede
Move writing of frame to the output bitstream to a separate function.
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Originally committed as revision 25994 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:13 +00:00
Justin Ruggles
084f5c5afe
cosmetics: remove a comment and just spacing
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Originally committed as revision 25993 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:10 +00:00
Justin Ruggles
160d85f5b0
Split frame size adjustment into a separate function.
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Originally committed as revision 25992 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:06 +00:00
Justin Ruggles
dfdf73eb1a
Split exponent processing into separate functions.
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Originally committed as revision 25991 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:53:02 +00:00
Justin Ruggles
0a0a8500fb
Split applying of MDCT into several separate functions.
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Originally committed as revision 25990 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:59 +00:00
Justin Ruggles
4acc790f3c
Split input sample deinterleaving into a separate function.
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Originally committed as revision 25989 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:56 +00:00
Justin Ruggles
152cc52803
Separate functionally different calculations in ac3_encode_frame().
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Originally committed as revision 25988 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:53 +00:00
Justin Ruggles
98f6ee4453
cosmetics: rename 2 variables
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Originally committed as revision 25987 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:49 +00:00
Justin Ruggles
12ed622699
Deinterleave whole frame at once instead of per-block.
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This reduces the amount of memcpy() by using pointers to overlap samples for
successive blocks rather than copying.
Originally committed as revision 25986 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:46 +00:00
Justin Ruggles
e0685bc98f
cosmetics: add & alter some comments
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Originally committed as revision 25985 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:43 +00:00
Justin Ruggles
282255bbd2
Split setting of bandwidth into a separate function.
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Originally committed as revision 25984 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:40 +00:00
Justin Ruggles
e35c984a5d
Move setting of bitstream_id and bitstream_mode to ac3_encode_init().
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Originally committed as revision 25983 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:37 +00:00
Justin Ruggles
ddf63d37b8
Improve ac3_encode_init() error reporting.
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Return AVERROR(EINVAL) instead of -1. Propogate errors from called functions.
Add some error log printouts.
Originally committed as revision 25982 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:34 +00:00
Justin Ruggles
b64d842c1d
cosmetics: indent after last commit
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Originally committed as revision 25981 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:30 +00:00
Justin Ruggles
99ca4f73f0
Don't use nested loops to iterate valid sample rates.
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Eliminates a goto and mirrors the bitrate validation.
Originally committed as revision 25980 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:25 +00:00
Justin Ruggles
1607db0a95
Remove some duplicate local copies of avctx fields.
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This is an av_cold function, and we don't need to duplicate variables just to
save a few characters.
Originally committed as revision 25979 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:21 +00:00
Justin Ruggles
8f60f70d44
Split validation of initial user options into a separate function.
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Originally committed as revision 25978 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:18 +00:00
Justin Ruggles
427e2293d3
Use bytes instead of 16-bit words for frame size.
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Originally committed as revision 25977 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:14 +00:00
Justin Ruggles
eed00252c9
cosmetics: rename variable 'n' to 'pad_bytes'
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Originally committed as revision 25976 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:12 +00:00
Justin Ruggles
1971ab6ed6
Change output_frame_end() to return void. The frame size is already known.
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Originally committed as revision 25975 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:08 +00:00
Justin Ruggles
e8b552a818
cosmetics: pretty-printing
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Originally committed as revision 25974 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:04 +00:00
Justin Ruggles
ce67b7cd38
cosmetics: rename some iterator variables to match what they represent
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Originally committed as revision 25973 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:52:00 +00:00
Justin Ruggles
777732756a
cosmetics: rename a variable for consistency
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Originally committed as revision 25972 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:56 +00:00
Justin Ruggles
aab45ca3de
cosmetics: rename exp_samples and global_exp to exp_shift.
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Originally committed as revision 25971 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:53 +00:00
Justin Ruggles
23c5b361a6
cosmetics: rename 2 functions
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Originally committed as revision 25970 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:50 +00:00
Justin Ruggles
47ae6e795b
define AC3_CRITICAL_BANDS and use it in the AC-3 encoder and decoder.
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Originally committed as revision 25967 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:40 +00:00
Justin Ruggles
0454b55801
Use sizeof(array value) instead of sizeof(int16_t).
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Originally committed as revision 25966 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:36 +00:00
Justin Ruggles
a0a9204e49
cosmetics: use lowercase letters for function names
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Originally committed as revision 25965 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:33 +00:00
Justin Ruggles
c36ce0f8df
cosmetics: add new function documentation and clean up existing documentation
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Originally committed as revision 25964 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:30 +00:00
Justin Ruggles
2f8ae52228
cosmetics: add more space between functions
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Originally committed as revision 25963 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:26 +00:00
Justin Ruggles
e77fd066fb
cosmetics: rearrange some functions/typedefs/macros
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Originally committed as revision 25962 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:23 +00:00
Justin Ruggles
02877def49
Simplify group size calculation in 2 places.
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Originally committed as revision 25961 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:20 +00:00
Justin Ruggles
9816155337
cosmetics: make a switch/case more compact
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Originally committed as revision 25960 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:17 +00:00
Justin Ruggles
b84a211bc8
Clean up fft_init() and mdct_init()
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Originally committed as revision 25959 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:12 +00:00
Justin Ruggles
6a988808a4
cosmetics: pretty-printing, alignment, etc...
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Originally committed as revision 25958 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:09 +00:00
Justin Ruggles
a913b5cf60
Remove unneeded #include
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Originally committed as revision 25957 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:05 +00:00
Justin Ruggles
918cd2255c
Simplify fix15().
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Turn it into 2 macros, and use av_clip_int16() and lrintf().
This matches the int16 to float sample conversion in audioconvert.c.
The regression test output is different due to lrintf() rounding.
Originally committed as revision 25956 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:02 +00:00
Justin Ruggles
228315bbd3
Fix the fixed-point MDCT and FFT tests so that they actually compile and work.
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Also, use LFG from libavutil instead of random().
Originally committed as revision 25955 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:50:58 +00:00
Justin Ruggles
a8d2b06b7c
Split out initialization of MDCT tables into a separate function.
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Originally committed as revision 25954 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:50:54 +00:00
Justin Ruggles
0796546370
cosmetics: Document AC3EncodeContext fields.
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Originally committed as revision 25953 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:50:49 +00:00
Justin Ruggles
22c0b03c8f
Remove unneeded debugging messages.
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Originally committed as revision 25952 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:50:45 +00:00
Justin Ruggles
1fda2c10f6
cosmetics: Define AC3_WINDOW_SIZE and use it instead of AC3_BLOCK_SIZE*2.
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Originally committed as revision 25951 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:50:40 +00:00