Commit Graph

6 Commits

Author SHA1 Message Date
KongQun Yang 1223694249 Do not force earliest_presentation_time to 0 for VOD
Instead, the actual earliest presentation time is used except for
the first segment if there is an offset between presentation time
(pts) and decoding time (dts).

Chrome (as of v66) reports dts instead of pts in buffered ranges in
MSE API. To avoid breaking Chrome, the earliest_presentation_time
of the first segment is set to its dts as Chrome does not like negative
values for
  adjusted dts = dts + Period@start (0 for the first period)
                 - presentationTimeOffset (earliest_presentation_time).

Fixes #303.

Change-Id: I5ca80e05d5570961400499436f2bcc01f06e69e0
2018-04-20 13:58:01 -07:00
KongQun Yang 59f393779c Support v1 vp9 in iso-bmff
- Implemented according to v1.0 spec @ https://www.webmproject.org/vp9/mp4/
- v0 is no longer supported

Change-Id: I189c813d788400beda797eea7da943a83dfa7d79
2017-04-27 19:37:14 +00:00
Kongqun Yang d007ddf20b [MP4] Make outputs CMAF compatible
- Added flag --mp4_include_pssh_in_stream, default to true. If it is
  set to false, the encrypted mp4 stream will not include pssh.
- Align BytesOfProtectedData to multiple of 16 bytes for cenc.
- Set TrackHeader flag to kTrackEnabled | kTrackInMovie |
                          kTrackInPreview
- Move mvex to after trak, required by HLS
- Add cmfc/cmfs compatible brands except for avc3/hev1, where CMAF
  requires single initialization switching set which is not supported.
- Set duration to 0 in tkhd, mdhd, mvhd.

Also updated major_brand and compatible brands:
- Set major_brand to isom (iso-bmff media file format) and made dash
  a compatible brand
- Replaced compatible brand iso6 with iso8 since we use sthd for text
  tracks

Fixes b/36278260

Change-Id: I3cc5dd5aa1621714d517fe02fe3841d19a1a07f6
2017-03-30 15:33:39 -07:00
Kongqun Yang 68aa1397b0 VPCodecConfiguration box should inherit from FullBox instead of Box
Change-Id: If53c6cab009bdeadc37a1bac34272056a2b7d1dc
2016-05-25 23:59:16 +00:00
Kongqun Yang 72c3a76699 Update repo url in version string
Issue #103

Change-Id: Iec7db3d155c81cf989f1078ed32692f8e037aa65
2016-05-24 21:55:45 +00:00
Kongqun Yang 26cb91e29b Handle preroll and codec_delay when tranmuxing opus
Closes Issue #102

Change-Id: I26aa56a63c17c85298311cc17963dd26f26e501e
2016-05-16 14:51:51 -07:00