Fix EOS reached before decoder fallback

Fix EOS reached before decoder fallback

If the demuxer stream we are pulling buffers from only has a few frames
(1 to 3 for example), we can reach the demuxer's end of stream before
knowing that we need to fall back to a software decoder. DecoderStream
is left with the |decoding_eos_| flag set, and runs into a DCHECK when
calling ReadFromDemuxerStream() upon decoder reinitialization.

This change updates CanDecodeMore() to take into account
|fallback_buffers_|, so we can attempt to decode fallback buffers before
returning EOS frames.

BUG=606084
REVIEW=DaleCurtis
TEST=updated unit tests

Committed: https://crrev.com/8f4a3f7d9d522797568b75ab201ed9aa9506afb6
Cr-Commit-Position: refs/heads/master@{#389687}

[tguilbert, 2016-04-25 19:48:10]

tguilbert@chromium.org changed reviewers:
+ dalecurtis@chromium.org

[tguilbert, 2016-04-25 19:48:11]

PTAL.

Thanks!

[DaleCurtis, 2016-04-25 22:57:27]

lgtm

[tguilbert, 2016-04-25 23:06:40]

The CQ bit was checked by tguilbert@chromium.org

[commit-bot: I haz the power, 2016-04-25 23:07:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1918693003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1918693003/1

[commit-bot: I haz the power, 2016-04-26 03:54:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-26 03:55:06]

Description was changed from

==========
Fix EOS reached before decoder fallback

If the demuxer stream we are pulling buffers from only has a few frames
(1 to 3 for example), we can reach the demuxer's end of stream before
knowing that we need to fall back to a software decoder. DecoderStream
is left with the |decoding_eos_| flag set, and runs into a DCHECK when
calling ReadFromDemuxerStream() upon decoder reinitialization.

This change updates CanDecodeMore() to take into account
|fallback_buffers_|, so we can attempt to decode fallback buffers before
returning EOS frames.

BUG=606084
REVIEW=DaleCurtis
TEST=updated unit tests
==========

to

==========
Fix EOS reached before decoder fallback

If the demuxer stream we are pulling buffers from only has a few frames
(1 to 3 for example), we can reach the demuxer's end of stream before
knowing that we need to fall back to a software decoder. DecoderStream
is left with the |decoding_eos_| flag set, and runs into a DCHECK when
calling ReadFromDemuxerStream() upon decoder reinitialization.

This change updates CanDecodeMore() to take into account
|fallback_buffers_|, so we can attempt to decode fallback buffers before
returning EOS frames.

BUG=606084
REVIEW=DaleCurtis
TEST=updated unit tests

Committed: https://crrev.com/8f4a3f7d9d522797568b75ab201ed9aa9506afb6
Cr-Commit-Position: refs/heads/master@{#389687}
==========

[commit-bot: I haz the power, 2016-04-26 03:55:07]

Patchset 1 (id:??) landed as
https://crrev.com/8f4a3f7d9d522797568b75ab201ed9aa9506afb6
Cr-Commit-Position: refs/heads/master@{#389687}