[webkit-changes] [WebKit/WebKit] dc4698: [GStreamer] Get length from content-length header ...

[Enrique Ocaña González]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: dc4698316b36833706bc93aff6ad7a18cb3e4c33
      https://github.com/WebKit/WebKit/commit/dc4698316b36833706bc93aff6ad7a18cb3e4c33
  Author: Enrique Ocaña González <eocanha at igalia.com>
  Date:   2023-12-20 (Wed, 20 Dec 2023)

  Changed paths:
    M Source/WebCore/platform/graphics/gstreamer/WebKitWebSourceGStreamer.cpp

  Log Message:
  -----------
  [GStreamer] Get length from content-length header when available in chunked content encoding
https://bugs.webkit.org/show_bug.cgi?id=266691

Reviewed by Xabier Rodriguez-Calvar.

Currently, chunked content-encoding media content transfers are considered not to have a
defined length and are treated as live videos (no seek available, the whole content is
downloaded in a monolithic way). However, sometimes the web server specifies a
content-length that, even if not mandatory, gives a hint about the total length. If that
info was used, we could treat the download in a much more flexible way, downloading only the
required pieces on demand, as the player needs them, and also enabling seek.

See: https://github.com/WebPlatformForEmbedded/WPEWebKit/issues/1257

This patch leverages the information supplied by the content-length header when
content-encoding is set as chunked.

* Source/WebCore/platform/graphics/gstreamer/WebKitWebSourceGStreamer.cpp:
(CachedResourceStreamingClient::responseReceived): Set length with the right information when the circumstances are appropriate.

Canonical link: https://commits.webkit.org/272355@main