PeerStreamer

Speed up group minimum and group output calculations for EXP_D25 and EXP_D45
in encode_exponents_blk_ch() by removing the inner loops. This is about 30-40%
faster for the modified sections.

Originally committed as revision 26036 to svn://svn.ffmpeg.org/ffmpeg/trunk

Redesign encode_exponents_blk_ch() so that duplicate exponent sets are no
longer required. This gets rid of the temp buffer as well as encoded_exp in
AC3EncodeContext. It also allows for skipping the exponent grouping for
EXP_D15. 56% faster in encode_exponents_blk_ch()....

cosmetics: pretty-printing after last commit

Originally committed as revision 26031 to svn://svn.ffmpeg.org/ffmpeg/trunk

Use pre-allocated temp buffers in mdct512().
5% faster in function.

Originally committed as revision 26029 to svn://svn.ffmpeg.org/ffmpeg/trunk

Use memcpy() instead of a for loop in mdct512().
8% faster in function.

Originally committed as revision 26027 to svn://svn.ffmpeg.org/ffmpeg/trunk

Make windowed_samples 16-byte aligned.
This will allow future SIMD optimization of the window function.

Originally committed as revision 26025 to svn://svn.ffmpeg.org/ffmpeg/trunk

Allocate bap and bap1 buffers using av_malloc().
This reduces the memory footprint when using less than 6 channels.
Modify bit allocation to swap the 2 buffers instead of using memcpy() and use
per-block pointers for bap. This is slightly faster (0.3%) in function...

Remove unneeded line. key_frame is already set to 1 in avcodec_alloc_frame().

Originally committed as revision 26020 to svn://svn.ffmpeg.org/ffmpeg/trunk

Separate most of the per-block arrays into a separate per-block struct.

Originally committed as revision 26018 to svn://svn.ffmpeg.org/ffmpeg/trunk

10l: fix typo in compute_exp_strategy()

Originally committed as revision 26013 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: line wrap and spacing

Originally committed as revision 26011 to svn://svn.ffmpeg.org/ffmpeg/trunk

Change bit_alloc() to return the mantissa bit count.

Originally committed as revision 26009 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move bit counts to AC3EncodeContext.

Originally committed as revision 26007 to svn://svn.ffmpeg.org/ffmpeg/trunk

Split out counting of frame bits into a separate function.

Originally committed as revision 26002 to svn://svn.ffmpeg.org/ffmpeg/trunk

Only calculate num_exp_groups once.

Originally committed as revision 26000 to svn://svn.ffmpeg.org/ffmpeg/trunk

Split out grouping of exponents into a separate function.

Originally committed as revision 25998 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rearrange some functions

Originally committed as revision 25996 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move writing of frame to the output bitstream to a separate function.

Originally committed as revision 25994 to svn://svn.ffmpeg.org/ffmpeg/trunk

Split frame size adjustment into a separate function.

Originally committed as revision 25992 to svn://svn.ffmpeg.org/ffmpeg/trunk

Split applying of MDCT into several separate functions.

Originally committed as revision 25990 to svn://svn.ffmpeg.org/ffmpeg/trunk

Separate functionally different calculations in ac3_encode_frame().

Originally committed as revision 25988 to svn://svn.ffmpeg.org/ffmpeg/trunk

Deinterleave whole frame at once instead of per-block.
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

Split setting of bandwidth into a separate function.

Originally committed as revision 25984 to svn://svn.ffmpeg.org/ffmpeg/trunk

Improve ac3_encode_init() error reporting.
Return AVERROR 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

Don't use nested loops to iterate valid sample rates.
Eliminates a goto and mirrors the bitrate validation.

Originally committed as revision 25980 to svn://svn.ffmpeg.org/ffmpeg/trunk

Split validation of initial user options into a separate function.

Originally committed as revision 25978 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rename variable 'n' to 'pad_bytes'

Originally committed as revision 25976 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: pretty-printing

Originally committed as revision 25974 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rename a variable for consistency

Originally committed as revision 25972 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rename 2 functions

Originally committed as revision 25970 to svn://svn.ffmpeg.org/ffmpeg/trunk

Use sizeof(array value) instead of sizeof(int16_t).

Originally committed as revision 25966 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: add new function documentation and clean up existing documentation

Originally committed as revision 25964 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rearrange some functions/typedefs/macros

Originally committed as revision 25962 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: make a switch/case more compact

Originally committed as revision 25960 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: pretty-printing, alignment, etc...

Originally committed as revision 25958 to svn://svn.ffmpeg.org/ffmpeg/trunk

Simplify fix15().
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

Split out initialization of MDCT tables into a separate function.

Originally committed as revision 25954 to svn://svn.ffmpeg.org/ffmpeg/trunk

Remove unneeded debugging messages.

Originally committed as revision 25952 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: use better (and shared) macro names for some constant values

Originally committed as revision 25950 to svn://svn.ffmpeg.org/ffmpeg/trunk

cosmetics: rename some fields in AC3EncodeContext

Originally committed as revision 25948 to svn://svn.ffmpeg.org/ffmpeg/trunk

Change some unsigned types to signed types in AC3EncodeContext

Originally committed as revision 25946 to svn://svn.ffmpeg.org/ffmpeg/trunk

Use the new libavcore audio channel API.

This also allows to remove a linking dependency of libavfilter on
libavcodec.

Originally committed as revision 25789 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Remove explicit filename from Doxygen @file commands.

Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move ff_reverse in libavcodec to av_reverse in libavutil.

Patch by Francesco Lavra, francescolavra interfree it

Originally committed as revision 20484 to svn://svn.ffmpeg.org/ffmpeg/trunk

Change av_log() calls surrounded by '#ifdef DEBUG' into dprintf macros.

Originally committed as revision 19550 to svn://svn.ffmpeg.org/ffmpeg/trunk

Add channel layout support to the AC-3 encoder.

Originally committed as revision 18623 to svn://svn.ffmpeg.org/ffmpeg/trunk

Rename pbBufPtr() to put_bits_ptr().
The new name is more readable and consistent with the FFmpeg naming
style.

Originally committed as revision 18497 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Add missing av_cold in static init/close functions.

Patch by Daniel Verkamp daniel at drv dot nu.

Originally committed as revision 17526 to svn://svn.ffmpeg.org/ffmpeg/trunk