CDMSessionMediaSourceAVFObjC.mm   [plain text]

/*
 * Copyright (C) 2014-2015 Apple Inc. All rights reserved.
 *
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 * modification, are permitted provided that the following conditions
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#import "config.h"
#import "CDMSessionMediaSourceAVFObjC.h"

#if ENABLE(ENCRYPTED_MEDIA_V2) && ENABLE(MEDIA_SOURCE)

#import "CDMPrivateMediaSourceAVFObjC.h"
#import "FileSystem.h"
#import "WebCoreNSErrorExtras.h"
#import <AVFoundation/AVError.h>

namespace WebCore {

CDMSessionMediaSourceAVFObjC::CDMSessionMediaSourceAVFObjC(CDMPrivateMediaSourceAVFObjC& cdm, CDMSessionClient* client)
    : m_cdm(&cdm)
    , m_client(client)
{
}

CDMSessionMediaSourceAVFObjC::~CDMSessionMediaSourceAVFObjC()
{
    if (m_cdm)
        m_cdm->invalidateSession(this);
}

void CDMSessionMediaSourceAVFObjC::layerDidReceiveError(AVSampleBufferDisplayLayer *, NSError *error, bool& shouldIgnore)
{
    if (!m_client)
        return;

    unsigned long code = mediaKeyErrorSystemCode(error);

    // FIXME(142246): Remove the following once <rdar://problem/20027434> is resolved.
    shouldIgnore = m_stopped && code == 12785;
    if (!shouldIgnore)
        m_client->sendError(CDMSessionClient::MediaKeyErrorDomain, code);
}

void CDMSessionMediaSourceAVFObjC::rendererDidReceiveError(AVSampleBufferAudioRenderer *, NSError *error, bool& shouldIgnore)
{
    if (!m_client)
        return;

    unsigned long code = mediaKeyErrorSystemCode(error);

    // FIXME(142246): Remove the following once <rdar://problem/20027434> is resolved.
    shouldIgnore = m_stopped && code == 12785;
    if (!shouldIgnore)
        m_client->sendError(CDMSessionClient::MediaKeyErrorDomain, code);
}


void CDMSessionMediaSourceAVFObjC::addSourceBuffer(SourceBufferPrivateAVFObjC* sourceBuffer)
{
    ASSERT(!m_sourceBuffers.contains(sourceBuffer));
    ASSERT(sourceBuffer);

    addParser(sourceBuffer->parser());

    m_sourceBuffers.append(sourceBuffer);
    sourceBuffer->registerForErrorNotifications(this);
}

void CDMSessionMediaSourceAVFObjC::removeSourceBuffer(SourceBufferPrivateAVFObjC* sourceBuffer)
{
    ASSERT(m_sourceBuffers.contains(sourceBuffer));
    ASSERT(sourceBuffer);

    removeParser(sourceBuffer->parser());

    sourceBuffer->unregisterForErrorNotifications(this);
    m_sourceBuffers.remove(m_sourceBuffers.find(sourceBuffer));
}

String CDMSessionMediaSourceAVFObjC::storagePath() const
{
    return m_client ? pathByAppendingComponent(m_client->mediaKeysStorageDirectory(), "SecureStop.plist") : emptyString();
}

}

#endif // ENABLE(ENCRYPTED_MEDIA_V2) && ENABLE(MEDIA_SOURCE)