Commit graph

37 commits

Author SHA1 Message Date
Alex Ashley
5767d65321 codec-utils: support extension audio object type and sample rate
ISO 14496-3 defines that audioObjectType 5 is a special case that
indicates SBR is present and that an additional field has to be
parsed to find the true audioObjectType.

There are two ways of signaling SBR within an AAC stream - implicit
and explicit (see [1] section 4.2). When explicit signaling is used,
the presence of SBR data is signaled by means of the SBR
audioObjectType in the AudioSpecificConfig data.

Normally the sample rate is specified by an index into a
table of common sample rates. However index 0x0f is a special case
that indicates that the next 24 bits contain the real sample rate.

[1] https://www.telosalliance.com/support/A-closer-look-into-MPEG-4-High-Efficiency-AAC

Fixes #39
2019-01-11 17:41:15 +05:30
Edward Hervey
f9176b8288 codec-utils: Don't leak bytewriter data
In error cases, don't forget to reset it.
2018-12-17 09:27:25 +01:00
Mark Nauwelaerts
1beff3bde5 pbutils: fix some GIR annotations
Mostly related to out and array parameters
2018-04-23 19:33:19 +02:00
Thiago Santos
17e1e308a3 codec-utils: add some missing gi annotations
Missing some array and out parameters annotations

https://bugzilla.gnome.org/show_bug.cgi?id=790950
2017-11-30 01:24:14 -08:00
Mathieu Duponchelle
c493c564ba codecutils: improve input validation in opus header parsing
Invalid input files do not warrant assertions. Instead
output error messages and let the error bubble up.
2017-11-03 17:25:47 +01:00
Thibault Saunier
099ac9faf2 docs: Convert gtkdoc comments to markdown
Modernizing the documentation, making it simpler to read an
modify and allowing us to possibly switch to hotdoc in the
future.
2017-03-10 18:19:17 -03:00
Sreerenj Balachandran
e5a67d71f7 pbutils: Add more h264 scalable profiles
Adding Scalable Constrained High (G.10.1.2.1) and
Scalable High Intra(G.10.1.3) profiles to the profile list

https://bugzilla.gnome.org/show_bug.cgi?id=769303
2016-08-02 14:25:57 +03:00
Sebastian Dröge
155222017a codec-utils: H265 level idc 0 is not valid
Don't put level=0 into the caps, it confuses other elements.

https://bugzilla.gnome.org/show_bug.cgi?id=765538
2016-04-25 16:49:20 +03:00
Sebastian Dröge
7741e56db4 codec-utils: H264 level idc 0 is not valid
Don't put level=0 into the caps, it confuses other elements.

https://bugzilla.gnome.org/show_bug.cgi?id=765538
2016-04-25 16:49:20 +03:00
Jimmy Ohn
65f721b326 codec-utils: Add utilities for AAC and the AACHead header
Add utilities about the channels and sample rate for AAC.

https://bugzilla.gnome.org/show_bug.cgi?id=749110
2016-03-24 14:27:21 +02:00
Luis de Bethencourt
2a70c86e85 codec-utils: accept wrong version field in OpusHead header
Some Opus files found on the wild have 0 in the version field of the
OpusHead header, instead of the correct value of 1. The files still
play, don't make this error fatal.

https://bugzilla.gnome.org/show_bug.cgi?id=758754
2015-12-01 15:47:35 +00:00
Luis de Bethencourt
09c881ee14 codec-utils: guint8 can't hold value over 255
channels is a guint8, so the max value is 255 and checking if it value is
> 256 will never be false.

CID 1338687, CID 1338688
2015-11-12 14:39:22 +00:00
Sebastian Dröge
bcd7b2fff2 codec-utils: Add utilities for Opus caps and the OpusHead header
https://bugzilla.gnome.org/show_bug.cgi?id=757152
2015-11-03 20:35:33 +02:00
Sebastian Dröge
b3b2251c59 codec-utils: Add AAC channel configurations 11, 12 and 14 and levels 6 and 7 2015-06-04 16:31:12 +02:00
Sreerenj Balachandran
6af56187e8 pbutils: Use more strict profile checking for hevc
Use the profile_idc value to set the profile string in caps.
Don't use compatibility flags for this purpose.

https://bugzilla.gnome.org/show_bug.cgi?id=747613
2015-04-30 21:42:34 +02:00
Sebastian Dröge
11c126363f Revert "codec-utils: Handle the two rext profiles for h265"
This reverts commit 19b9356680.

These two "profiles" are actually a complete set of profiles, which we will
need to handle separately. Unfortunately it seems like we need information
from the SPS to detect the exact profile.
2015-02-16 09:48:03 +02:00
Sebastian Dröge
19b9356680 codec-utils: Handle the two rext profiles for h265
These values are for now taken from x265 and need to be checked against
the spec. Especially we need to check if information from other fields
need to be taken into consideration too, e.g. the bit depth and chroma
index from the SPS.

This however makes 4:4:4 output of x265enc actually work.
2015-02-11 17:53:49 +02:00
Gwenole Beauchesne
83e6daf3ef pbutils: handle more H.264 profiles and levels.
Recognize H.264 Level 5.2, as exposed by modern 2160p30+ streams,
i.e. commonly known as 4K. Also add initial support for handling
Annex.G (SVC) profiles.

https://bugzilla.gnome.org/show_bug.cgi?id=732269

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2014-06-26 14:17:21 +02:00
Sreerenj Balachandran
9ffaaddcbe pbutils: Add codec-utility funtions to support H265
https://bugzilla.gnome.org/show_bug.cgi?id=708921
2013-10-02 11:37:39 +02:00
Vincent Penquerc'h
ee088c6b3f codec-utils: add a gst_codec_utils_aac_get_index_from_sample_rate
It maps a sample rate to a well known AAC sample rate index.
2013-07-26 09:24:50 +01:00
Sreerenj Balachandran
0abec3f89a pbutils: recognise more H.264 profiles/levels
Add profile/level extraction for Multiview High profile
and Stereo High profile.

https://bugzilla.gnome.org/show_bug.cgi?id=694346
2013-02-21 23:55:10 +00:00
Tim-Philipp Müller
5f59b4f7ee Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 23:05:09 +00:00
Edward Hervey
2817bdadc9 libs: Remove "Since" markers and minor doc fixups 2012-07-13 12:11:06 +02:00
Jens Georg
fe17585568 pbutils: Add SP levels 4a, 5 and 6
https://bugzilla.gnome.org/show_bug.cgi?id=655503
2011-08-03 10:05:51 +02:00
Tim-Philipp Müller
1a8b4eae73 docs: add Since marker to gtk-doc chunk for new codec utils API
And add new API to .def file.

API: gst_codec_utils_h264_get_level_idc()
2011-07-14 13:57:10 +01:00
Olivier Crête
5f1bfc7e13 codec-utils: Add method to convert H.264 text level in a level_idc 2011-07-13 14:01:11 -04:00
Debarshi Ray
70dd7dd092 codec-utils: restore 7350 as a valid sampling frequency for AAC
This was lost during c77f88cac6.
2011-06-14 10:24:59 +01:00
Stefan Kost
2b32faad91 code-utile: fix level descriptions for fgs
fgs levels range from 8-13 and are mapped to 0-5.
2011-05-27 11:41:24 +03:00
Stefan Kost
d35d7561a3 codec-utils: fix mpeg4 level verification
The current condition would never be true. As levels<6 are asp and levels>7 and
<14 are fgs, we should return NULL for cases 6,7,14,15.
2011-05-27 11:41:24 +03:00
Arun Raghavan
c05ca085da codec-utils: Minor documentation changes 2011-01-04 18:59:25 +00:00
Tim-Philipp Müller
719a9f5739 codec utils: populate mpeg4 caps "level" field with level, not profile
Call the right function to get the level. Also add some more debug
logging.
2010-10-01 15:29:36 +01:00
Tim-Philipp Müller
5c2c727f84 pbutils: include config.h in codec utils 2010-09-30 15:19:02 +01:00
Tim-Philipp Müller
515a768dbc docs: add new codec utils API to docs 2010-09-30 13:09:29 +01:00
Arun Raghavan
def1cf7276 pbutils: Add MPEG-4 Video profile/level extraction
This adds code to translate the profile_and_level indication from the
MPEG-4 video (ISO/IEC 14496-2) headers to a string profile/level. The
mappings are taken from the spec and Wireshark's code, and might need to
be expanded on.

https://bugzilla.gnome.org/show_bug.cgi?id=617314

API: gst_codec_utils_mpeg4video_get_profile()
API: gst_codec_utils_mpeg4video_get_level()
API: gst_codec_utils_mpeg4video_caps_set_level_and_profile()
2010-09-30 13:09:29 +01:00
Arun Raghavan
e4bd09f0ed pbutils: add H.264 profile/level extraction functions to codec utils
This adds code to parse the first few bytes of H.264 sequence parameter
set in order to extract the profile and level as const strings. This
code was originally in both qtdemux and matroskademux.

https://bugzilla.gnome.org/show_bug.cgi?id=617314

API: gst_codec_utils_h264_get_level()
API: gst_codec_utils_h264_get_profile()
API: gst_codec_utils_h264_caps_set_level_and_profile()
2010-09-30 13:09:29 +01:00
Arun Raghavan
0cf81938a1 pbutils: add AAC profile detection to codec utils
This moves AAC profile detection to pbutils, and uses this in
typefindfunctions. This will also be used in qtdemux.

https://bugzilla.gnome.org/show_bug.cgi?id=617314

API: gst_codec_utils_aac_get_profile()
API: codec_utils_aac_caps_set_level_and_profile()
2010-09-30 13:09:29 +01:00
Arun Raghavan
c77f88cac6 pbutils: add codec-specific utility functions for AAC
This allows us to add generic codec-specific functionality, like
extracting profile/level data from headers, without having to duplicate
code across demuxers and typefindfunctions.

As a starting point, this moves over AAC level extraction code from
typefindfunctions, so it can be reused in qtdemux, etc.

https://bugzilla.gnome.org/show_bug.cgi?id=617314

API: gst_codec_utils_aac_get_sample_rate_from_index()
API: gst_codec_utils_aac_get_level()
2010-09-30 13:09:28 +01:00