Created end-to-end tests for the segmented webvtt text in HLS. The
text stream is longer than both audio and video, so there are more
text segments than video/audio.
Change-Id: Ib860ccd3f2ac0048983fdeebe3847a0b9dcbc160
Created a method to diff the output dir against the golden copy
of the output dir. The goal with this is to simplify our end-to-end
test structure by removing the need to track the output files within
the test runner.
With all the golden output in one directory, this makes it easier to
setup end-to-end tests and even allows the golden files to be playable.
This should not affect the repo size too much as duplicate files will
only be stored in the git object store once.
Tests will migrate to this in separate CLs.
Change-Id: Id1be9f8f60c9e362b9b615445dd8ca7da996af4c
Changed the "live" setting in _GetStreams to be "segmented" so that it
make sense in a more general sense.
Change-Id: I2ceaad67653e1e2237533b68fccbc9fe3fabfc9b
When converting from NAL unit stream to byte stream.
The packager should not assume the parameter sets in the sample is the
same as the parameter sets in sample entry (decoder configuration).
Fixes#327.
Change-Id: I7e84d28a296f4b33db0523cca5eabd62f623e852
Looks like Safari does not like v0 tenc box.
- Use v1 tenc box for cbcs and cens protection_scheme as required by
CENCv3 spec.
- Set crypt_byte_block and skip_byte_block to 0 for full sample
encryption cbcs and cens.
Fixes#326
Change-Id: I5581cd856fffc4ff104d950f3ca19b9337d57a78
Create a StreamDescriptor class that can be used to build the stream
descriptor command line argument.
Change-Id: Ifcba4f37d69a1a36c4add51a2a10c3f0c8b2ccd7
The old vtt sample data has the header as "WEBVTT FILE" which does
not reflect what the spec says it should be.
This changes it to "WEBVTT" as described in the WebVTT spec.
Change-Id: Ib54396a8b937501a835dafe966bf05b95b0b22c4
When a gap is found in the text stream, the WebVtt to Mp4 converter will
now output the special empty vtt cue.
Change-Id: I8be88c6b7589aa120a2215e1e4b8e98031fe326d
Closes: #324
- Add empty lines between different types of renditions to improve
readability.
- Group variants with the same audio/text group together, as it is
where the Adaptation occurs.
- Write master playlist after writing media playlists. This makes
more sense and it is also necessary to have the bandwidth of
the last iframe playist segment correctly computed.
- For fMP4, I-Frame segment must include the 'moof' header.
- Fix a problem that hls_iframe_playlist_name is not passed to
MuxerListenerFactory.
Issue: #287
Change-Id: Icf37c5de1dc29f85ae3f419cbc3264d04ca491a4
Adding all the code needed to allow the webvtt to mp4 converter to
send empty vtt cues. This change does everything except writing the
mp4 box.
Bug: #324
Change-Id: I16188e6357632b2ed06f7e9bab7844f093266696
Instead of always tracking segments with an index, this change makes a struct
that will act as the segment and track which segments are in it. Each
segment will store all the samples in the order they were given, it will
avoid any sorting.
Closes: 72867775
Change-Id: Ic5829161510fe8f3320d960c3bc4a276c26ff3be
Create WebVtt test that shows that the current implementation of the
webvtt segmenter does not respect the input order of cues.
Bug: 72867775
Change-Id: I811b3a93c10650e0cf9290c9c0c1680f562deb30
Took the same logic for DEFAULT and AUTOSELECT used by audio and
applied it to text. Combined the build tag logic for audio and
text as they were the same expect for a couple fields.
Bug: #205
Change-Id: I75ecbf4b25cd559b826982d12a5b132e70b83b69
The master playlist and media playlist did not have implementations
for handling text streams. This change adds support for both.
Bug: #205
Change-Id: I1329b8cc2585f15b89959071db9dd16d35847cba
If no hls group name is given, we would default to "audio" but as
we are working to support text, this won't make sense to see
GROUP="audio" on a text stream.
Instead default to "default-audio-group" for audio streams. A specific
text default will be added later.
Bug: #205
Change-Id: Iefc8bfd35708286619d0004348294d98f2c38482
In the master play list, use a class called variant to build
the video tags.
The variant list will always have one entry. In the case that there
are no audio streams, the variant list will have a null entry.
Bug: #205
Change-Id: I6e4acd83a31cd267c173e4f4c910f93781fe6efd
According to the HLS+WebVTT spec, if there is no text in a segment
a webvtt file with no cues can be added to the manifest. By outputting
empty segments it allows the accumulated duration in the Master Playlist
to better represent the duration of the text stream.
Spec Reference: //tools.ietf.org/html/draft-pantos-http-live-streaming-23
Section 3.5. WebVTT
Bug: #205
Change-Id: I5de01200fd9fa99c57949c773e8ee926b0f6ba8a
It was the same code to make the media playlists for each test, so this
change moves that logic into common functions.
Change-Id: Ifb8680247ad4335332251815a2db5d56d28151aa
- Removed SetError, Swap, Matches functions, which are not used
- Added moveable version of Update function
- Added VLOG(1) warning in Status for non-ok status
- Replaced OS_WIN with _WIN32 as OS_WIN may not have been defined.
Change-Id: Ib6b7aab6e6fee270937b150f1e4bf993e914a568
Moved the file copy out of StreamInfoToTextMediaInfo as the file
copy is only needed by the MPD output but the Media Info is needed
by MPD output and media info dump.
Bug: 36138902
Change-Id: Id233f2041b3e72345b8f709791c6b6070484222f
The IV was incorrectly updated across samples.
Created a new cryptor SampleAesEc3Cryptor specially for SAMPLE-AES
EC3 encryption / decryption. The new cryptor uses constant-iv, and
makes sure the IV is reset to the initial value at the beginning
of each audio frame and chained across syncframes within the the
audio frame.
Also added E-AC3 end to end test.
Fixes#279
Change-Id: I0aa60c17836daeef5ba433a05e5ff0906191d9ac
There could be rounding errors in MSE which could cut the first key
frame of the representation and thus cut all the frames until the next
key frame, which then leads to a big gap in presentation
timeline which stalls playback.
Adjusting presentationTimeOffset (PTO) by -1, i.e. backing off PTO by 1
to compensate for the possible rounding error. It should not cause any
playback issues as it is small enough. The workaround can be removed
once the problem is handled in all players.
The PTO adjustment is configurable with command line flag:
--pto_adjustment, with value set to -1 by default.
b/71808910
Change-Id: I9c4d1e2ee84008b859a3638a8146c910cead1f15
Instead of using next segment start time, as CueEvent time may not
align with segment start time exactly.
Also remove the incorrect DCHECK in ChunkingHandler when processing
kScte35Event.
Change-Id: I4987740c99c8d0d25c9b99bddc5e557e45d308e0
Aaron Vaage
KongQun Yang