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Commit Graph

21 Commits

Author SHA1 Message Date
Lynne
055413788f
dca_lbr: convert to lavu/tx
Fully converts the DCA decoder to lavu/tx.
2022-11-06 14:39:37 +01:00
Andreas Rheinhardt
629aa5fbc0 avcodec/dca_lbr: Inline nb_bits for VLCs
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-16 18:07:29 +02:00
Andreas Rheinhardt
62d9b1195a avcodec/dca_lbr: Hardcode lpc table to save space
The code to initialize it takes more space (in .text) than
the table to be initialized (namely 86B vs 64B for GCC 11.2
with -O3 in an av_cold function), so hardcode the table.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-16 18:07:29 +02:00
Andreas Rheinhardt
597bfff342 avcodec/dcahuff, dca_core, dca_lbr: Apply offset during VLC creation
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-16 18:07:29 +02:00
Andreas Rheinhardt
d1a5ef4069 avcodec/internal: Move ff_side_data_update_matrix_encoding to decode.h
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-27 14:14:57 +02:00
Andreas Rheinhardt
66b691f99f avcodec/internal: Move ff_get_buffer() to decode.h
Only used by decoders (encoders have ff_encode_alloc_frame()).

Also clean up the other headers a bit while removing now redundant
internal.h inclusions.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-27 14:14:56 +02:00
Andreas Rheinhardt
88f9b1fc45 avcodec/dcadec: Treat the input packet's data as const
A decoder's input packet need not be writable, so we must not modify
the data.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-07-04 15:03:53 +02:00
James Almer
739c96ba1a avcodec/dca_lbr: set nchannels
Fixes warnings about uninitialized values

Signed-off-by: James Almer <jamrial@gmail.com>
2022-03-15 10:37:54 -03:00
Anton Khirnov
5636972c7a lavc: drop temporary compat wrappers for channel layout API change
Signed-off-by: James Almer <jamrial@gmail.com>
2022-03-15 09:42:46 -03:00
Anton Khirnov
b2af4bc807 dca: convert to new channel layout API
Signed-off-by: James Almer <jamrial@gmail.com>
2022-03-15 09:42:41 -03:00
Andreas Rheinhardt
27f22f3383 all: Remove unnecessary libavcodec/internal.h inclusions
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-08 06:16:26 +01:00
Andreas Rheinhardt
7d4f1f4d99 avcodec/dca*: Make decoder init-threadsafe
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 05:14:41 +02:00
Anton Khirnov
c8c2dfbc37 lavu: move LOCAL_ALIGNED from internal.h to mem_internal.h
That is a more appropriate place for it.
2021-01-01 14:11:01 +01:00
Michael Niedermayer
bfea054a75 avcodec/dca_lbr: Fix some error codes and error passing
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-02-03 00:11:18 +01:00
foo86
f6b86b62f7 avcodec/dca: move some enumeration typedefs into headers
These values will be used by the parser. Prefix them with DCA_
appropriately.

Signed-off-by: James Almer <jamrial@gmail.com>
2017-07-18 21:04:55 -03:00
Michael Niedermayer
61f70416f8 avcodec/dca_lbr: Fix off by 1 error in freq check
Fixes out of array read
Fixes: 510/clusterfuzz-testcase-5737865715646464

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-02-02 15:48:50 +01:00
foo86
d1f558b362 avcodec/dca: require checked bitstream reader
Remove half-working attempt at supporting unchecked bitstream reader by
always copying input data into intermediate buffer with large amount of
padding at the end.

Convert LBR decoder to checked bitstream reader. Convert
dcadec_decode_frame() to parse input data directly if possible.

Signed-off-by: James Almer <jamrial@gmail.com>
2016-05-31 11:45:48 -03:00
foo86
64fe1eebdd avcodec/dca: use LUT for LBR frequency ranges
Values for unsupported frequencies > 48000 Hz are still included (parser
will make use of them).

Also convert sampling frequencies array to unsigned.

Signed-off-by: James Almer <jamrial@gmail.com>
2016-05-20 23:12:37 -03:00
Michael Niedermayer
bf29794022 avcodec/dca_lbr: Fix "warning: missing braces around initializer"
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-05-11 21:03:07 +02:00
Hendrik Leppkes
27506aceda avcodec/dca_lbr: explicitly initialize structs with zero
This fixes build on MSVC and conforms to the usual init style used.
2016-05-11 16:34:57 +02:00
foo86
6c44696b3d avcodec/dca: add DTS Express (LBR) decoder
Signed-off-by: James Almer <jamrial@gmail.com>
2016-05-10 20:33:28 -03:00