Commit Graph

11 Commits

Author SHA1 Message Date
Samidh 4686454a73
Add segment_list support for DASH on-demand profile
Configurable under flag --dash_force_segment_list, default to false.

Note that DASH live profile is not supported right now.
2021-05-25 12:08:58 -07:00
Tim Lansen 8e113af215
[DASH] Include <mspr:pro> alongside to <cenc:pssh> for PlayReady (#749)
Configurable under flag --include_mspr_pro_for_playready. True by default.

Closes #743.
2020-04-17 10:20:03 -07:00
sr90 55349aa4c8
Adding --allow_codec_switching (#726)
To allow adaptive switching between different codecs.

Closes #542.
2020-03-17 19:33:44 -07:00
KongQun Yang 3c26dfbd53 Estimate target duration in bandwidth calculation from initial blocks
We used to use the target segment duration provided by the user.
Unfortunately that does not work for iframe only playlist which
the target duration is effectively equal to the GOP duration.

In the new approach, we estimate the target duration from the initial
few blocks (10 blocks right now).

Fixes #610.

Change-Id: Ie8bf943e157149ca7ed3b9382fe0a1088d0774e2
2019-07-11 17:45:55 -07:00
KongQun Yang 4b97a6d8a2 Add support for --default_text_language
It allows users to override the default language for text tracks.

If not specified, --default_language applies to both audio and text
tracks.

Issue #430.

Change-Id: I86a9baba2072be27b6661fa7b65a8bc8b6adb3cc
2018-11-26 13:42:58 -08:00
KongQun Yang 74df8d30cc Exclude short segments from peak bandwidth computation
https://tools.ietf.org/html/rfc8216#section-4.1
The peak segment bit rate of a Media Playlist is the largest bit rate
of any contiguous set of segments whose total duration is between 0.5
and 1.5 times the target duration.

Fixes #498.

Change-Id: I1f28972b9cc5977735e47906bdcd88ba3942db5a
2018-11-26 20:02:09 +00:00
KongQun Yang a7463f60c1 Enable segment auto removal for live packaging
The number of preserved segments outside live window can be
configured using flag --preserved_segments_outside_live_window,
which is default to 50, i.e. 5 minutes for 6s segment.

Note that the segment removal will be disabled if it is set to 0.

Only HLS live playlist and DASH dynamic MPD are affected by this flag.

- Also add end to end tests.

Fixes #223.

Change-Id: I8a566efebe2f1552c7d9509ab017bade5a4a1c98
2018-05-02 00:18:42 +00:00
KongQun Yang 224b597b48 Support approximate SegmentTimeline
It is not always possible to align segment duration to target duration
exactly. For example, for AAC with sampling rate of 44100, there are
always 1024 audio frames per sample, so the sample duration is
1024/44100. For a target duration of 2 seconds, the closest segment
duration would be 1.984 or 2.00533.

This feature allows MPD generator to treat these segments as having
the same duration, thus allows MPD generator to generate less
SegmentTimeline entries and potentially no SegmentTimeline entries
(replaced with SegmentTemplate@duration instead if
  --segment_template_constant_duration flag is enabled).

Under flag --allow_approximate_segment_timeline. Disabled by default.

Fixes #330.

Change-Id: I5044eaa348ebbf45bf792a2af53fc95a115ae21b
2018-04-30 17:15:47 -07:00
KongQun Yang 64c2ad7d6e Support removing segments outside of live window in DASH
Issue: #223

Change-Id: Ie2d98a8f1553862532f1bdd074ca022d8904f0ea
2018-04-13 14:15:58 -07:00
KongQun Yang 222737d5b5 Support UTCTiming
UTCTiming schemeIdUri and value pairs can be provided to packager using
--utc_timings flag. It should be comma separated list of
schemeIdUri=value pairs.

Note that urn:mpeg:dash:utc:direct:2014 scheme is not supported as it
requires the MPD to be dynamically generated on the fly when MPD is
served to client.

Fixes #311.

Change-Id: Ibc07af8a6d8b2b6261ba3ecd2c02f23809f96614
2018-04-04 01:37:01 +00:00
KongQun Yang 556ff56559 Consolidate MpdParams into MpdOptions
Change-Id: I7f37277ef87597548c2fbf219963cd8725ae4c05
2017-08-18 11:57:41 -07:00