Commit Graph

9 Commits

Author SHA1 Message Date
Weiguo Shao 540c0aaffb
Added AC-4 codec support (#795)
Closes #754.
2020-07-04 14:55:28 -07:00
KongQun Yang 8029004c6b Add HEVC Dolby Vision support
- Add relevant FOURCCs for Dolby Vision.
- Parse DOVIDecoderConfigurationRecord (dvcC, dvvC) to generate
  Dolby Vision codec string.
- Propagate Dolby Vision configs (dvcC, dvvC, hvcE) from Demuxer
  to Muxer.
- Add a Dolby Vision end to end test.

Support for backward compatibility signaling in DASH and HLS will be
added in a later CL.

Issue #341

Change-Id: If1385df5f48e04b59cb7661130bea48e26b453bf
2019-10-03 23:04:15 +00:00
KongQun Yang fc0c5ddf0d Implemented AV1 bitstream parser
Implemented according to bitstream spec at
https://aomediacodec.github.io/av1-spec/.

It will be used to do AV1 subsample encryption later.

Issue #453.

Change-Id: I84d8a2a780d95f2c9f430ee598838b97474cc0af
2018-09-28 18:45:44 +00:00
KongQun Yang 0709db4bbc Add support for AV1
Implemented per AV1 Codec ISO Media File Format Binding at
  https://aomediacodec.github.io/av1-isobmff/
And AOM AV1 codec mapping in Matroska/WebM at
  https://github.com/Matroska-Org/matroska-specification/blob/av1-mappin/codec/av1.md

Note that AV1 specific boxes are not supported in this CL, i.e.
AV1 Forward Key Frame sample group entry 'av1f', AV1 Multi-Frame
sample group entry 'av1m' etc are not supported. These boxes are optional.
We will add support later if they are useful to the clients / players.

Encryption is not supported yet.

Issue #453.

Change-Id: I630432d0a9bf82d263ffaf40e57f67fc65eee902
2018-08-31 19:16:04 +00:00
KongQun Yang 5965b3e136 Move TS encrypted audio setup for HLS to hls_audio_util
Change-Id: Ibbc1fe2a8013abded6df2f2f57701ec328d3e5c6
2018-05-16 01:04:14 +00:00
KongQun Yang 2ba23e1075 Fix incorrect CHANNELS reporting for AC3/EC3
Fixes #313

Change-Id: I0b8d8081cda8aaa4db2ca4916bfc6721bfa3bd22
2018-01-11 03:50:56 +00:00
KongQun Yang 8e96dd3b37 Address gcc build failures in some platforms
Seeing some failures on some platforms when compiled with clang
disabled:
  GYP_DEFINES="clang=0" gclient runhooks

Several changes to make it work:
1. Mark packager code with packager_code=1 in GYP definitions.
2. Disable a few checks in non-packager code, which we do not have
   direct control: dangling-else, deprecated-declarations,
                   unused-function
3. Fix the relevant errors in packager code.
4. Revert HAVE_STROPTS_H in curl config which is not available in
   all linux distributions.

Fixes #286
Fixes #293

Change-Id: I729b41f99403c5ad9487c6cc4a7dc06f6323cef8
2017-12-07 11:45:26 -08:00
Kongqun Yang 277c5b23c0 Allow generating avc3 / hev1 from TS and Wvm files
Added a flag --strip_parameter_set_nalus. When enabled, parameter
set NAL units, SPS/PPS for H264 and SPS/PPS/VPS for H265, are stripped
from frames when converting NAL byte stream (AnnexB stream) to NAL
unit stream, which generates avc1/hvc1; otherwise they are not
stripped, and avc3/hev1 is generated.

Parameter set NAL units should not be stripped if they are varying
in the frames otherwise the frames may fail to be decoded.

The flag is enabled by default as we don't usually see varying
SPS/PPS/VPS and it is more space efficient with them stripped.

Set --strip_parameter_set_nalus=false to disable the flag if there
are varying SPS/PPS/VPS in the frames. This addresses #206.

Change-Id: I34bde6f33069f9f77d51a510b39f58a0f0e141aa
2017-03-23 13:53:14 -07:00
Kongqun Yang 32482c0bce Rename filters directory to codecs
Also move codecs related classes in mp4 to codecs directory.

Change-Id: I83db2bcf9e66b405fcceed78918b762b26cd7fce
2016-05-27 16:13:19 -07:00