chromium/third_party/blink/renderer/modules/mediastream/media_constraints_impl.h

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 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.
 * 3. Neither the name of Google Inc. nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_CONSTRAINTS_IMPL_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_CONSTRAINTS_IMPL_H_

#include "third_party/blink/renderer/modules/mediastream/media_constraints.h"
#include "third_party/blink/renderer/modules/modules_export.h"

namespace blink {

class ExecutionContext;
class MediaTrackConstraints;

namespace media_constraints_impl {

// Max lengths of individual strings and string sequences provided as
// constraints, as a safety check. Currently deviceId and grouId are both 64
// char strings, so this should provide plenty of headroom while still avoiding
// abuse.
const size_t kMaxConstraintStringLength =;
const size_t kMaxConstraintStringSeqLength =;

MediaConstraints Create();
MediaConstraints Create(ExecutionContext*,
                        const MediaTrackConstraints*,
                        String&);

// Exported with MODULES_EXPORT for testing
MODULES_EXPORT MediaTrackConstraints* ConvertConstraints(
    const MediaConstraints& input);

// Exported for testing only.
MODULES_EXPORT MediaConstraints
ConvertTrackConstraintsToMediaConstraints(const MediaTrackConstraints*,
                                          String&);
}

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_CONSTRAINTS_IMPL_H_