Issue 527411 in chromium: HE-AAC (mp4a.40.5) supports in MPEG-DASH

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chro...@googlecode.com

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Sep 2, 2015, 9:31:40 AM9/2/15
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Status: Unconfirmed
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Labels: Cr-Internals-Media Pri-2 Via-Wizard Type-Bug OS-Android

New issue 527411 by guillaum...@krds.fr: HE-AAC (mp4a.40.5) supports in
MPEG-DASH
https://code.google.com/p/chromium/issues/detail?id=527411

Example URL:
http://demos.flowplayer.org/api/dash.html

Steps to reproduce the problem:
1. Open http://demos.flowplayer.org/api/dash.html with an Android device
2. Touch the "Play" button
3. Wait few seconds for the video to load

What is the expected behavior?
The video plays

What went wrong?
The video doesn't play because the mpeg-dash stream uses HE-AAC codec as
audio.

The codec is explicitly indicated as "mp4a.40.5" in the DASH Manifest file
(https://d12zt1n3pd4xhr.cloudfront.net/fp/drive.mpd).

Note that chrome://media-internals reports the codec as "mp4a.40.2"
(LC-AAC), which may indicates a detection issue.

Did this work before? N/A

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? Yes

Chrome version: 45.0.2454.84 Channel: stable
OS Version: 5.1.1
Flash Version:

HE-AAC codec for audio is supported and working well in standard MP4 file
(http://demos.flowplayer.org/videotest/mp4.html) as well as HLS stream
(http://demos.flowplayer.org/videotest/hls.html).

Attachments:
media-internals.PNG 86.0 KB

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chro...@googlecode.com

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Sep 2, 2015, 9:50:02 AM9/2/15
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Comment #1 on issue 527411 by guillaum...@krds.fr: HE-AAC (mp4a.40.5)
Another demos URL with the same bug repro, independent of the player
implementation:

1) http://shaka-player-demo.appspot.com/

Enter https://d12zt1n3pd4xhr.cloudfront.net/fp/drive.mpd as manifest file
then "Load stream".

=> Video can't play for the same reason (HE-AAC used)

2)
http://dashif.org/reference/players/javascript/1.4.0/samples/dash-if-reference-player/index.html

Enter https://d12zt1n3pd4xhr.cloudfront.net/fp/drive.mpd as manifest file
then "load"

=> Video can't play (HE-AAC used)
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