Commit graph

43 commits

Author SHA1 Message Date
James Almer
cf653aabb5 avcodec/aacdec: add support for channel configuration 14
It corresponds to the 7.1(top) layout.

Signed-off-by: James Almer <jamrial@gmail.com>
2022-11-03 19:39:52 -03:00
Andreas Rheinhardt
7eed125dbb avcodec/mpeg4audio: Move ff_copy_pce_data() to a header of its own
It is only used by three of the thirty files that (potentially
indirectly) include mpeg4audio.h. Twenty of these files won't
have a put_bits.h inclusion any more after this patch.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-10-02 20:16:42 +02:00
Andreas Rheinhardt
49bf94536f avcodec/mpeg4audio: Unavpriv and deduplicate mpeg4audio_sample_rates
avpriv_mpeg4audio_sample_rates has a size of 64B and it is currently
avpriv; a clone of it exists in aacenctab.h and from there it is inlined
in aacenc.c (which also uses the avpriv version) and in the FLV muxer.
This means that despite it being avpriv both libavformat as well as
libavcodec have copies already.

This situation is clearly suboptimal. Given the overhead of exporting
symbols (for x64 Elf/Linux/GNU: 2x2B version, 2x24B .dynsym, 24B .rela.dyn,
8B .got, 4B hash + twice the size of the name (here 31B)) the object is
unavprived, i.e. duplicated into libavformat when creating a shared
build; but the duplicates in the AAC encoder and FLV muxer are removed.

This involves splitting of the sample rate table into a file of its own;
this allowed to break some spurious dependencies (e.g. both the AAC
encoder as well as the Matroska demuxer actually don't need the
mpeg4audio_get_config stuff).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-04 13:16:50 +01:00
Andreas Rheinhardt
c57d07c3d5 avcodec/mpeg4audio: Remove avpriv_mpeg4audio_get_config
Superseded by avpriv_mpeg4audio_get_config2.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 10:43:03 -03:00
Andreas Rheinhardt
a40763f520 avcodec/mpeg4audio: Use proper logcontext for logging
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-02-23 10:14:26 +01:00
Jan Ekström
79b057f1b7 avcodec/mpeg4audio: add newer channel_coding mappings
Additionally, add comments regarding their definitions. Based on
ARIB STD-B32, which bases on 14496-3:2009 and 14496-3:2009/AMD4.
2020-08-04 00:17:56 +03:00
Michael Niedermayer
f72fa1ad67 avcodec: Replace skip_bits_long() by skip_bits() where possible
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-12-31 18:43:50 +01:00
Michael Niedermayer
79d5d79f38 avcodec: Replace show_bits_long() by show_bits() where possible
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-12-31 18:43:50 +01:00
Jun Zhao
333109f469 lavc/mpeg4audio: add chan_config check to avoid indeterminate channels
add chan_config check to avoid indeterminate channels.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-09-27 10:50:18 -03:00
James Almer
f96a8b015f avcodec/mpeg4audio: add avpriv_mpeg4audio_get_config2()
Identical to avpriv_mpeg4audio_get_config() except taking a size argument in
bytes, and featuring a new logging context paremeter.

Schedule avpriv_mpeg4audio_get_config() for removal as soon as major is bumped
as well.

Signed-off-by: James Almer <jamrial@gmail.com>
2019-09-27 10:37:11 -03:00
James Almer
9ea06d48c2 Merge commit '831018b0bb'
* commit '831018b0bb':
  mpeg4audio: Make avpriv_copy_pce_data() inline

Merged-by: James Almer <jamrial@gmail.com>
2017-10-30 17:47:21 -03:00
Anton Khirnov
831018b0bb mpeg4audio: Make avpriv_copy_pce_data() inline
The function currently accepts a PutBitContext and a GetBitContext,
which hardcodes their sizes into the lavc ABI. Since the function is
quite small and only called in a few places, the simplest solution is
making it inline, thus avoiding a runtime dependency completely.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
2017-04-28 13:47:20 +02:00
Alex Converse
3f1a38c919 aac_latm: Allow unaligned AudioSpecificConfig
Fixes ticket 4730
2017-02-13 09:31:13 -08:00
James Almer
33a2b73b98 mpeg4audio: correctly propagate meaningful error values
Signed-off-by: James Almer <jamrial@gmail.com>
2016-12-02 12:16:30 -05:00
James Almer
50b1453915 avcodec/mpeg4audio: correctly propagate meaningful error values
Signed-off-by: James Almer <jamrial@gmail.com>
2016-11-25 10:40:59 -03:00
Andreas Cadhalpun
0747754622 mpeg4audio: validate sample_rate
A negative sample rate doesn't make sense and triggers assertions in
av_rescale_rnd.

Also check for errors from avpriv_mpeg4audio_get_config in
ff_mp4_read_dec_config_descr.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2016-11-07 00:51:49 +01:00
Michael Niedermayer
1cf0f27985 Merge commit '7e4e010b80'
* commit '7e4e010b80':
  mpeg4audio: check the init_get_bits() return value

Conflicts:
	libavcodec/mpeg4audio.c

See: deefdf9788
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-09 20:51:17 +01:00
Anton Khirnov
7e4e010b80 mpeg4audio: check the init_get_bits() return value
Fixes possible invalid reads.

CC:libav-stable@libav.org
2015-01-09 15:44:31 +01:00
Michael Niedermayer
deefdf9788 avpriv_mpeg4audio_get_config: check init_get_bits() return code.
Fixes null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-27 21:18:00 +01:00
Clément Bœsch
7581ad24a9 lavc/aac: fix shared build failures with MSVC.
This is a workaround until a better solution is found.
2012-11-12 22:28:57 +01:00
Michael Niedermayer
599a4e0771 mpeg4audio: dont take the SBR flag too serious.
Fixes Ticket1049

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-23 14:43:12 +02:00
Michael Niedermayer
f37b2d5a68 aacdec: Fix null pointer crash
Fixes bug170
Bug found by: Gautam Gupta

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-17 05:04:56 +01:00
Michael Niedermayer
e4de71677f Merge remote-tracking branch 'qatar/master'
* qatar/master:
  aac_latm: reconfigure decoder on audio specific config changes
  latmdec: fix audio specific config parsing
  Add avcodec_decode_audio4().
  avcodec: change number of plane pointers from 4 to 8 at next major bump.
  Update developers documentation with coding conventions.
  svq1dec: avoid undefined get_bits(0) call
  ARM: h264dsp_neon cosmetics
  ARM: make some NEON macros reusable
  Do not memcpy raw video frames when using null muxer
  fate: update asf seektest
  vp8: flush buffers on size changes.
  doc: improve general documentation for MacOSX
  asf: use packet dts as approximation of pts
  asf: do not call av_read_frame
  rtsp: Initialize the media_type_mask in the rtp guessing demuxer
  Cleaned up alacenc.c

Conflicts:
	doc/APIchanges
	doc/developer.texi
	libavcodec/8svx.c
	libavcodec/aacdec.c
	libavcodec/ac3dec.c
	libavcodec/avcodec.h
	libavcodec/nellymoserdec.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/version.h
	libavcodec/wmadec.c
	libavformat/asfdec.c
	tests/ref/seek/lavf_asf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-03 03:00:30 +01:00
Janne Grunau
fd095539d1 latmdec: fix audio specific config parsing
Pass the correct size in bits to mpeg4audio_get_config and add a flag
to disable parsing of the sync extension when the size is not known.

Latm with AudioMuxVersion 0 does not specify the size of the audio
specific config. Data after the audio specific config can be
misinterpreted as sync extension resulting in random and wrong configs.
2011-12-03 00:42:48 +01:00
Michael Niedermayer
dd8ffc1925 Merge remote-tracking branch 'qatar/master'
* qatar/master: (47 commits)
  lavc: hide private symbols.
  lavc: deprecate img_get_alpha_info().
  lavc: use avpriv_ prefix for ff_toupper4.
  lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits.
  lavc: use avpriv_ prefix for ff_ac3_parse_header.
  lavc: use avpriv_ prefix for ff_frame_rate_tab.
  lavc: rename ff_find_start_code to avpriv_mpv_find_start_code
  lavc: use avpriv_ prefix for ff_split_xiph_headers.
  lavc: use avpriv_ prefix for ff_dirac_parse_sequence_header.
  lavc: use avpriv_ prefix for some dv symbols used in lavf.
  lavc: use avpriv_ prefix for some flac symbols used in lavf.
  lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf.
  lavc: use avpriv_ prefix for some mpegaudio symbols used in lavf.
  lavc: use avpriv_ prefix for ff_aac_parse_header().
  lavf: hide private symbols.
  lavf: use avpriv_ prefix for some dv functions.
  lavf: use avpriv_ prefix for ff_new_chapter().
  avcodec: add CODEC_CAP_DELAY note to avcodec_decode_audio3() documentation
  avcodec: clarify the CODEC_CAP_DELAY note in avcodec_decode_video2()
  avcodec: clarify documentation of CODEC_CAP_DELAY
  ...

Conflicts:
	configure
	doc/general.texi
	libavcodec/Makefile
	libavcodec/aacdec.c
	libavcodec/allcodecs.c
	libavcodec/avcodec.h
	libavcodec/dv.c
	libavcodec/dvdata.c
	libavcodec/dvdata.h
	libavcodec/libspeexenc.c
	libavcodec/mpegvideo.c
	libavcodec/version.h
	libavformat/avidec.c
	libavformat/dv.c
	libavformat/dv.h
	libavformat/flvenc.c
	libavformat/mov.c
	libavformat/mp3enc.c
	libavformat/oggparsespeex.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-21 02:01:26 +02:00
Anton Khirnov
9f51c682ee lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits.
They are used in lavf.
2011-10-20 21:06:58 +02:00
Anton Khirnov
59a9a23581 lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf.
Specifically, ff_mpeg4audio_sample_rates, ff_mpeg4audio_get_config and
ff_copy_pce_data
2011-10-20 21:06:57 +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
Alex Converse
a20639017b Add HE-AAC v2 support to the AAC decoder.
Originally committed as revision 23647 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-19 14:14:51 +00:00
Alex Converse
d14662f66a Add support for PS sync extensions.
Originally committed as revision 22818 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-08 06:04:41 +00:00
Alex Converse
37216b99e0 Use get_bits_left() in the sync extension check.
Originally committed as revision 22817 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-08 06:04:37 +00:00
Alex Converse
702b73bc9f Fix ext_object_type.
In the case of explicit non-backwards compible PS, the extension object
type should be set to SBR. See 14496-3:2009 (fourth edition).

Originally committed as revision 22816 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-08 06:04:31 +00:00
Alex Converse
1e79771c31 Add support for non-backwards compatible signaled parametric stereo.
This is done without breaking W6132 Annex YYYY draft MP3onMP4 which also uses AOT 29.
Samples:
http://samples.mplayerhq.hu/A-codecs/AAC/aacPlusDecoderCheckPackage_v2.1/bitstreams/File7.3gp
http://samples.mplayerhq.hu/MPEG-4/mp3on4/id5_1.mp4

Originally committed as revision 22281 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-07 17:55:23 +00:00
Ronald S. Bultje
6e44ba1550 Use get_bits_left() instead of size_in_bits - get_bits_count().
Originally committed as revision 20543 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-16 17:42:43 +00:00
Thilo Borgmann
24026a2d49 Add the ability to parse the ALSSpecificConfig from an MPEG-4 AudioSpecificConfig. Patch by Thilo Borgmann
<com googlemail borgmann thilo> as part of GSoC 2009.

Originally committed as revision 20516 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-11 22:16:54 +00:00
Alex Converse
5aea268d14 Add a channels field to MPEG4AudioConfig.
Originally committed as revision 20512 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-11 20:24:23 +00:00
Alex Converse
0cc4701a3a Use the AOT enum instead of integer literals for setting and comparing audio
object types.

Originally committed as revision 19666 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-17 00:17:58 +00:00
Justin Ruggles
b5fe06abf0 Replace 5 with AOT_SBR when referring to the MPEG-4 audio object type.
Originally committed as revision 19569 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-03 02:09:23 +00:00
Alex Converse
107815de42 Subroutine to copy an AAC Program Config Element (PCE)
Originally committed as revision 18817 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-13 22:57:30 +00:00
Jai Menon
3d10a8904d Read extended channel configuration when extended AOT is BSAC.
Originally committed as revision 18644 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-21 17:52:52 +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
Baptiste Coudurier
44dff0058e init ext sample rate to 0 if not present
Originally committed as revision 18139 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-03-22 02:53:01 +00:00
Baptiste Coudurier
4d34bb19c1 mpeg4audio common code
Originally committed as revision 12662 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-01 12:01:40 +00:00