Commit Graph

6 Commits

Author SHA1 Message Date
KongQun Yang d0978b3937 Compute and set VP9 Level if it is not already set
The VP9 level is computed when the container is missing a codec config
or if the level is missing from the codec config.

This fixes VP9 in ISO-BMFF files generated by FFmpeg v4.0.2 or earlier
which does not have level set in the codec config.

Fixes #469.

Change-Id: I685bfd48be16ee6b2209da1c3173f7d6bb02b36a
2018-09-13 00:37:30 +00:00
KongQun Yang 55cc50baa0 Use new vp09 codec string for WebM by default
Configurable under flag --use_legacy_vp9_codec_string, which defaults
to false as all major browsers and platforms support new style vp09
codec string already.

Closes #406.

Change-Id: I22e917777f9d66db815ff9d55eb47b6d55806269
2018-06-12 23:31:28 +00:00
KongQun Yang b2932d5a33 Fix bitrate for DASH on-demand profile too
Removed the logic in MuxerListener to estimate bandwidth from file
size and duration, since it is not compliant to the spec.

MpdBuilder will estimate bandwidth from segment size and duration
if bandwidth is not specified in MediaInfo.

Here is the statement from DASH spec (23009-1:2014):

Consider a hypothetical constant bitrate channel of
bandwidth with the value of this attribute in bits per second
(bps). Then, if the Representation is continuously delivered
at this bitrate, starting at any SAP that is indicated either by
@startwithsap or by any Segment Index box, a client can
be assured of having enough data for continuous playout
providing playout begins after @minbuffertime *
@bandwidth bits have been received (i.e. at time
@minbuffertime after the first bit is received).
For dependent Representations this value specifies the
bandwidth according to the above definition for the
aggregation of this Representation and all complementary
Representations.

Fixes #376.

Change-Id: I0fddce39e709d0cded0a4c9ae59adbbcc97ec5ea
2018-04-24 23:25:02 +00:00
KongQun Yang 634ee65663 Generate a more accurate time in Period@duration
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
2018-04-03 21:42:33 +00:00
Aaron Vaage b2ce6322b6 Remove Test File Index in packager_test.py
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
2018-03-06 21:38:04 +00:00
Aaron Vaage a097aa4d3b Update Many Tests to Use CheckTestResults
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
2018-02-27 13:32:32 -08:00