working decoder
imdct for block switching is to be implemented
various other things to do
Originally committed as revision 9656 to svn://svn.ffmpeg.org/ffmpeg/trunk
Latest commit.
There is no error in parsing and or recovering transform coefficients.
Double checked with ac3dec.
Getting consistent results with the bit allocation routine and transform
coefficients.
The code is able to parse valid ac3 bitstreams without error from start
to end.
I have also implemented the imdct when block switching is not enabled.
However, can anybody provide an insight into how to convert float samples to
int16_t ? lrint is of no help cuz it produces output -1, 0 or 1 whereas the
output should be between -32768 to 32767.
Originally committed as revision 9654 to svn://svn.ffmpeg.org/ffmpeg/trunk
Removed _ from names
Removed temporary storage for the exponents
Removed ctx->samples
Now each transform coefficients are stored in audio block as an array of transform coefficients for each channel
added ctx->delay (output of later half of previous block)
added audio_block->block_output(output of this block)
I am still not able to produce the output.
I checked the code twice completely. I am not missing anything in
parsing or in bit allocation. Yet it throws error in getting transform
coefficients sometimes. Can anyone review a code of get_transform_coeffs and
help me debug it further. I think the error is in do_bit_allocation routine cuz
get_transform_coeffs is dependent on the bit allocation parameters table.
I have checked the bit allocation algorithm thoroughly and it is as defined in the
standard. Tried everything and got stuck where to go further.
Please help me.
Originally committed as revision 9653 to svn://svn.ffmpeg.org/ffmpeg/trunk
initial commit
NOTE: This and all subsequent ac3dec.c revisions from the soc repository
violate the GPL. This will be fixed after all soc revisions are imported.
This file is not compiled yet, so the license compliance of any builds in
the meantime will not be affected.
Originally committed as revision 9651 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols
--enable-muxer=mpeg1system
Originally committed as revision 9650 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols
--enable-demuxer=vc1
Originally committed as revision 9649 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols
--enable-demuxer=mpegtsraw
Originally committed as revision 9648 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols --enable-demuxer=dxa
Originally committed as revision 9647 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols
--enable-demuxer=dv1394
Originally committed as revision 9645 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols --enable-demuxer=c93
Originally committed as revision 9642 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols
--enable-parser=mpegaudio
Originally committed as revision 9641 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols --enable-decoder=vp6f
Originally committed as revision 9640 to svn://svn.ffmpeg.org/ffmpeg/trunk
This fixes the following option set:
--disable-encoders --disable-decoders --disable-parsers --disable-bsfs
--disable-muxers --disable-demuxers --disable-protocols --enable-decoder=svq3
Originally committed as revision 9638 to svn://svn.ffmpeg.org/ffmpeg/trunk
Plus replace one occurrence of "version 2 of the license" with "version 2.1
of the license", same as in the FSF version. This has always been LGPL 2.1.
Originally committed as revision 9609 to svn://svn.ffmpeg.org/ffmpeg/trunk
Justin Ruggles
Aurelien Jacobs
Diego Biurrun
Måns Rullgård
Víctor Paesa
Alex Beregszaszi
Baptiste Coudurier
Ramiro Polla
İsmail Dönmez
Vitor Sessak
Luca Barbato
Benoit Fouet