[Bug 742979] adaptivedemux: Adaptive bitrate algorithm does not react fast enough to declining bitrate

bugzilla at gnome.org bugzilla at gnome.org
Wed Feb 11 15:08:17 PST 2015


Mathieu Duponchelle <mduponchelle1 at gmail.com> changed:

           What    |Removed                     |Added
 Attachment #295549|needs-work                  |committed
             status|                            |

--- Comment #29 from Mathieu Duponchelle <mduponchelle1 at gmail.com> ---
Review of attachment 295549:
 --> (https://bugzilla.gnome.org/review?bug=742979&attachment=295549)

commit c98348c1417fbe6cabe0fd4dfcb3d65acd8d5c81
Author: Mathieu Duponchelle <mathieu.duponchelle at opencreed.com>
Date:   Tue Jan 27 13:48:42 2015 +0100

    adaptivedemux: track per-fragment bitrates.

    And use the average to go up in resolution, and the last fragment
    bitrate to go down.

    This allows the demuxer to react rapidly to bitrate loss, and
    be conservative for bitrate improvements.

    + Add a construct only property to define the number of fragments
      to consider when calculating the average moving bitrate.


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