Chrome internally uses time accurate to microseconds, which is
implemented per MSE spec (https://www.w3.org/TR/media-source/).
Generate Period@duration with better precision to avoid possible
buffered range gaps in Chrome (possibly other browsers too), which
may lead to other problems like playback stall.
b/74238961
Fixes#368.
Change-Id: I357a0f62b67f75c7ca044bb99ea4e3c8bbb6fecd
Created "Chain" function to connect a series of handlers together so
that the connection is easier to read.
Changed other calls to use RETURN_IF_ERROR to help make it easier to
read as we no longer need to track the status variable anymore.
Change-Id: Iffb76ca395b6d62f8feb054c09470c77718e8feb
Created a media handler to come after parsers that will handle filling
in gaps between text samples. The padder takes a min duration, and if
the samples do not cover the min duration when flushed, one last empty
sample will be injected so that the samples will go up to the min duration.
Change-Id: I88605059664d09279676edac418ff3d4990d7556
Updated TextChunker to handle incoming CueEvents. Connecting the
text chunker with the cue alignment handler will happen in a later
CL.
Issue: #362
Change-Id: Ib1fa9f457cf4ec0ce413dadcfa7eed5895ecd628
Move the webvtt segmenter to the chunking directory so that it
can be converted to a general purpose text chunker.
Change-Id: I9ecd7ee39cb73070dab07b64f65ef24af1404813
Now that we have the end-to-end tests, we no longer need the webvtt pipeline
tests to verify that it is working.
Change-Id: I4ebec34e66eda67c40999d8802b447e2551e1fa6
It is now managed in SimpleMpdNotifier.
This avoids unnecessary increment in AdaptationSet id counter.
Also makes sure the AdaptationSet is sorted by id in XML output.
Change-Id: Ibcd0b047a71c19cd30ad7d8af9a2ed0bb05e043e
SyncPointQueue manages all cue points and returns aligned cue
points to the callers (CueAlignmentHandlers).
CueAlignmentHandler is responsible for aligning cues from different
streams. It uses SyncPointQueue internally to align / synchronize the
cue points.
Issue: #355
Change-Id: I281fecb46a3ca7172d71e7495bdd07b8efdeb283
This changes almost all encrypted tests to use DiffDir. The remaining
un-updated tests are tests that won't match every time.
Change-Id: I858bbaa0beea34887cc3100eb784aa2aecd5a0a5
Change MediaInfo media paths in test output to only use the filename so
that they can be compared between test runs.
Change-Id: I26bb3f5ce79a83400b8a162c61cf5b54e41f9c70
iframe playlists will be given a name based on the output name of
the main stream. This is done to ensure unique filenames between
different video output streams.
Change-Id: Id0de9c5834599e9d896243e30569c55f34e7cd68
Instead of using the test file's index in a list to create the output
name, use the original filename and the descriptor.
This caused some problems with file name collisions when some tests
were using the same name. That was fixed by changing the names. This
will go away once they are transitioned to use DiffDir like the other
tests.
Change-Id: I0a4c480406705ca63fcea61c86c67d4a5f739295
This is called when reaching end of the file of the media. The duration
of the media is updated.
Fixes#340.
Change-Id: I446f2d341b02125d4a7d8c958bda269b5403cb9c
Created a method to compare test output for live tests. This wraps
CheckTestResults but first replaces the times that would diff between
manifests.
Change-Id: Iafb51a28a9bcb9f32b210c6d76bf23e2b9a3e0d6
This require a change to the update gold method as it would not
create nested directories. Instead it deletes the old directory
and copies the whole new directory over. This made the code simplier
and far-less error prone.
Change-Id: I1da5d9bda171b0f106d1425b204139dfbcb39b42
To make working with file names easier in packager_test.py _GetStream
the full path is not created until needed so that multiple paths can
use the same root filename.
Change-Id: I23a9231433b22ab5cef9b88bd6359f351da56eda
Changed all output file names (not paths) to follow the pattern that
any qualifier (e.g. trick play) will be join the current name using '-'
but will use '_' within itself (e.g. trick_play_1).
Change-Id: Ib0247bf1ca6d94815fedaaf73d3a400d31c20c40
We have an assert that ensures that the end time is greater than
the start time for any cue. However we never checked that cues
had a non-zero duration when parsing them.
We will throw away cues with a duration of zero (and print a
warning message) as they are not spec compliant.
Closes: #335
Change-Id: I404e8f3a5a8d43eff75a2554db3e38e8d340f421
In the video captured by Android's default camera app, meta box is written as
as Box instead of FullBox specified in the spec.
Closes#319.
Change-Id: I526492fdd505d5929c5161cb1ed1503b724de7e9
Prefer timestamps from Video AdaptationSets if available - this avoids
possible video playback jitters due to gaps.
presentationTimeOffset is not applied to the first period as it may in
negative dts which Chrome does not like: https://crbug.com/398141.
It is safe to apply to subsequent periods as the actual offset applied
takes Period@start into consideration:
offset = Period@start - presentationTimeOffset
The result timestamp with offset applied is close to Period@start, so
it is unlikely to result in a negative dts value.
Closes b/73899306.
Change-Id: If8361f5469610093b3aac6675754536ad7e83c4c
This change has the hls master playlist add the text codec string
to the list of codecs in a variant.
Bug: 72942756
Change-Id: Ib25bb2064a291d10d7b1d261a4307991df62220c
Updated as many tests as we easily could. The tests that were not updated
all use live manifests or encryption that all require some "help", either
by dealing with times differing or with verifying decryption.
Bug: 73830478
Change-Id: I6803c2d960b71b459eb57b7a5e562164bb713e2a
Created GetStream, a function used to get the stream descriptor for a
single stream. This allows for finer control over the stream compared
to the batch GetStreams.
Added "trick_play_factor" to GetStream so that the trick play factor
did not have to be added the stream descriptor value and "injected"
into the stream.
Change-Id: Ifbde64b961a673aafa5f6d21f33a68d02fb46610
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
KongQun Yang
Aaron Vaage
Haoming Chen
fatpelt