gecko-dev/netwerk/dash/mpd/Representation.cpp

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3.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
* Representation.cpp
*****************************************************************************
* Copyrigh(C) 2010 - 2011 Klagenfurt University
*
* Created on: Aug 10, 2010
* Authors: Christopher Mueller <christopher.mueller@itec.uni-klu.ac.at>
* Christian Timmerer <christian.timmerer@itec.uni-klu.ac.at>
* Contributors:
* Steve Workman <sworkman@mozilla.com>
*
* This Source Code Form Is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*****************************************************************************/
/* DASH - Dynamic Adaptive Streaming over HTTP
*
* DASH is an adaptive bitrate streaming technology where a multimedia file is
* partitioned into one or more segments and delivered to a client using HTTP.
*
* |Representation|
*
* Describes a particular version of a piece of media described in an
* |AdaptationSet|, a common example being a particular bitrate encoding for an
* audio or video stream. Direct child of |AdaptationSet|, which contains 1+
* available |Representation|s of the media.
*
* Common class used by all DASH Profiles.
* Populated by implementation of MPD Parser.
* Used as data source by implementation of MPD Manager.
*
* |MPD|
* --> |Period|s of time.
* --> |AdaptationSet|s for each type or group of media content.
* --> |Representation|s of media, encoded with different bitrates.
* --> |Segment|s of media, identified by URL (+optional byte
* range.
*/
#include "nsTArray.h"
#include "Representation.h"
namespace mozilla {
namespace net {
int64_t const
Representation::GetBitrate() const
{
return mBitrate;
}
void
Representation::SetBitrate(int64_t aBitrate)
{
mBitrate = aBitrate;
}
void
Representation::SetWidth(int32_t const aWidth)
{
mWidth = aWidth;
}
int32_t const
Representation::GetWidth() const
{
return mWidth;
}
void
Representation::SetHeight(int32_t aHeight)
{
mHeight = aHeight;
}
int32_t const
Representation::GetHeight() const
{
return mHeight;
}
void
Representation::AddBaseUrl(nsAString const& aUrl)
{
NS_ENSURE_FALSE_VOID(aUrl.IsEmpty());
// Only add if it's not already in the array.
if (!mBaseUrls.Contains(aUrl)) {
mBaseUrls.AppendElement(aUrl);
}
}
nsAString const &
Representation::GetBaseUrl(uint32_t aIndex) const
{
NS_ENSURE_TRUE(aIndex < mBaseUrls.Length(), NS_LITERAL_STRING(""));
return mBaseUrls[aIndex];
}
SegmentBase const*
Representation::GetSegmentBase() const
{
return mSegmentBase;
}
void
Representation::SetSegmentBase(SegmentBase* aBase)
{
NS_ENSURE_TRUE_VOID(aBase);
// Don't reassign if the ptrs or contents are equal.
if (mSegmentBase != aBase
|| (mSegmentBase && (*mSegmentBase != *aBase))) {
mSegmentBase = aBase;
}
}
}//namespace net
}//namespace mozilla