Commit Graph

16 Commits

Author SHA1 Message Date
Joey Parrish 1131bf7eea
chore: Mass-update copyright headers (#1086)
Closes #1076
2022-08-26 08:44:59 -07:00
Joey Parrish cfbe5c08c2 cleanup: Convert all time parameters to signed
This converts all time parameters to signed, finishing a cleanup that
was started in 2018 in b4256bf0.  This changes the type of:
  - timestamps
    - PTS specifically
  - timestamp offsets
  - timescales
  - durations

This excludes:
  - MP4 box definitions
  - DTS specifically

This is meant to address signed/unsigned conversion issues on arm64
that caused some test cases to fail.

Change-Id: Ic752a20cbc6e31fea6bc0894d1771833171e7cbe
2021-08-05 18:24:15 +00:00
sr90 11d69896c0
Write to memory file before writing to file for WebM segments generation (#803)
The change is needed to address #554.
2020-07-27 21:32:56 -07:00
KongQun Yang 2d919b5a31 Fix potential partial DASH segments during live packaging
Packager uses ThreadedIO to write media segments and manifest /
playlists. There was a possibility that media segments write being
delayed and scheduled after updating manifest / playlists.

This CL fixes the race condition.

Also added a note on how segments can be synced to cloud storage to
avoid the race condition during file sync.

Also added a live WebM test.

Fixes #386.

Change-Id: Icf9c38cdec715fa3dc2836eab1511131e129fe41
2018-05-03 09:26:23 -07:00
Rintaro Kuroiwa 0dfdace280 Change MuxerListener::OnMediaEnd to take ranges
- Changed OnMediaEnd() to take (sub)segment ranges.
- Define a structure to pass the ranges.
- This requires muxers to "cache" the segment ranges but in most cases,
  they already do it, e.g. 'sidx' for mp4.

Change-Id: I16b974c1f0f54ca658cc6dbe605efff84a3f52eb
2017-07-11 15:59:16 -07:00
KongQun Yang 3443048e80 Fix WebM timestamp overflow if longer than 2.5 hours
Fixes #233

Change-Id: I3431f8e68bfb1de222b8ab967c9cac6a821b4f53
2017-05-17 17:00:44 -07:00
Kongqun Yang 0c3fb49eeb [WebM] Fix output truncated if using the same file name for I/O
Open output file in DoFinalize() to ensure that the input file has been
closed already.

Fixes #210

Change-Id: I935941b31c667e49be030c8da9f953d8387c7a9d
2017-03-17 01:07:49 +00:00
Kongqun Yang 160700b452 Integrate ChunkingHandler
Also moved MediaHandler output validation to Initialize instead.

This CL also addresses #122 with consistent chunking.

Change-Id: I60c0da6d1b33421d7828bcb827d18899e71884ce
2017-03-16 20:54:36 +00:00
KongQun Yang 8f2cd6da91 Implements Demuxer and Muxer media handlers
- Also sets up the packaging and verify it works.

Some of the changes are temporary to get the integration going.

Change-Id: I0cf6c379d185e157808acabb9ef58ff93d4a39ae
2017-03-08 19:11:52 +00:00
Kongqun Yang ac1d2692cf [WebM] Fix corner case segment generation problem
The original code accumulates sample durations in seconds (double)
and then generates new segment / cluster by comparing the accumulated
value with configured value.

There may be loss of precision when accumulating values in double.
For example, with a GOP of 96 frames and frame rate of 24 fps; the
accumulated frame duration for 96 frames is 3.999999999999, which is
very close to 4.0 but not 4.0. Problem would arise if segment
duration is set to 4. The created segments would have a duration of
8 seconds instead of 4 seconds.

The new code accumulates sample durations in uint64_t relative to
input time scale; the configured segment duration will be converted to
timescale for comparison. This avoids loss of precision.

Change-Id: I3ae24be82a7ce45f923a6f90fea495b8b6b2e7ef
2016-09-30 21:45:27 +00:00
Kongqun Yang 644629c616 Replace scoped_ptr with std::unique_ptr
Change-Id: I1ed18bf876b6154d08a1f7913aa7e76c525451f9
2016-08-18 17:12:36 -07:00
Kongqun Yang 4f9c8ea781 Rename top level namespace to shaka
Issue #103

Change-Id: I67945c8ec6d2c178494d3b5400e5ec0170e9d115
2016-05-24 21:55:55 +00:00
Jacob Trimble a80e16bab0 Close files in Finalize for WebM segmenters.
Now Finalize() will close all the files used by the segmenters.  This
is important to allow WebMMuxer::FireOnMediaEndEvent to get the
correct size of the media file.

This also changes the WebM muxer to use 64-bit numbers for the init
and index ranges to correctly support >4GB files.

b/28194272

Change-Id: Ia84e4a4b0756f89644efea99a1a51968b22a1338
2016-04-18 21:28:09 +00:00
Rintaro Kuroiwa 300c23104e MuxerOptions and MuxerListener change for HLS
- Add hls_name and hls_group_id fields to MuxerOptions. This is used to
  pass the NAME and GROUP-ID values for EXT-X-MEDIA tag to
  MuxerListener.
- Change MuxerListener::OnEncryptionInfoReady() to take an
  initialization vector.
- Change MuxerListener::OnNewSegment() to take segment name.
- Reworded and formatted MuxerListener comments to Doxygen style.

Issue #85

Change-Id: Iea06e68552a56ae180177ffd6ca315a7cf39456c
2016-04-18 11:40:10 -07:00
Jacob Trimble 7b52f0a3ed Added unit tests for WebM Segmenters.
* Changed Segmenters to accept StreamInfo rather than MediaStream
  to help in testing.
* Changed MemoryFile behavior to mirror local file:
  * Read non-existent file is an error.
  * Write deletes any existing file.
* Fixed a bug in SingleSegmentSegmenter.

Change-Id: I339e35597ca4661b7a26c6fdbbfa2f9f511c7da0
2016-01-07 17:07:02 +00:00
Jacob Trimble 07378e806c Added WebM muxer.
* Added WebM muxer that supports both single and multi-segment modes.
* WebM muxer supports MPD generation.
* Enabled WebM muxer and demuxer in packager.

b/22463220
b/25089245
b/25089714

Change-Id: I9f6e8fc51e08fbb1d685229c5cb54ea60f7bed8f
2015-12-15 20:34:44 +00:00