Commit Graph

6 Commits

Author SHA1 Message Date
KongQun Yang 51d39d96a1 Add offset to tranport streams (MPEG2-TS, HLS Packed Audio)
Configurable with --transport_stream_offset_ms.

This is needed to compensate for possible negative timestamps in
inputs, which could happen on ISO-BMFF with EditLists.

Issue #112.

Change-Id: I0fce8766c9df2911b9bb859c1e54052a8ed2abfb
2018-07-26 23:20:21 +00:00
KongQun Yang 5dd21179ec Do not use harmonic mean in bandwidth calculation
Instead, caclulating average bandwidth by dividing the sum of the
sizes of every segment by the sum of the durations of every segment.
This aligns with the requirement in HLS spec:
https://tools.ietf.org/html/draft-pantos-http-live-streaming-23 4.1.

BandwidthEstimator is also simplified to handle all blocks only.

Fixes #361

Change-Id: I89e7d415a841f4d4048f199de8dae7ffa250467b
2018-07-12 10:46:47 -07:00
KongQun Yang 99a2ad03af [HLS] Support AVERAGE-BANDWIDTH
Issue #361

Change-Id: Id8eb8283675cba5ec7234d13c4ac235f34e3bec9
2018-07-12 10:43:49 -07:00
KongQun Yang 571ee24f3e Use PTS instead of DTS in ChunkingHandler
DTS was used in ChunkingHandler. As a result, SegmentInfo contained
timestamp in DTS. MP4Muxer has a logic to change SegmentInfo to use
PTS but not in other muxers.

Benefits of using PTS in ChunkingHandler:

- De-dup the redundant logic in MP4Muxer
- Ensure consistent behavior in different output containers
- Consistent with other timestamps, e.g. Ad Cue timestamps

Issue #413

Change-Id: Ib671badf144e0c0866d60f4ff0ac0cbbdd33817e
2018-07-02 21:58:45 +00:00
KongQun Yang 6b4a75b6ba Changed to use BandwidthEstimator in MediaPlaylist
Preparing for addressing #361.

Change-Id: I4b2e834948e681bc790efc61b63a24d44f70015d
2018-06-22 11:12:23 -07:00
KongQun Yang 0ef078a23b Fix default_language not effective with 2-char code
Two-character ISO-639 code in --default_language was ignored due to
a bug in language code matching as the language code in stream is
always converted to 3-character code.

Fixes #371.

Change-Id: I8618938af583a417446636ff9efe1c72ce822c33
2018-04-13 20:08:12 +00:00