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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */
#ifndef MediaContentType_h_
#define MediaContentType_h_
#include "mozilla/Maybe.h"
#include "nsString.h"
namespace mozilla {
// Structure containing pre-parsed content type parameters, e.g.:
// MIME type, optional codecs, etc.
class MediaContentType
{
public:
// Parse UTF16 string to extract parameters.
explicit MediaContentType(const nsAString& aType);
// Parse UTF8 string to extract parameters.
explicit MediaContentType(const nsACString& aType);
bool IsValid() const { return !GetMIMEType().IsEmpty(); }
// MIME type. Empty if construction arguments could not be parsed.
const nsACString& GetMIMEType() const { return mMIMEType; }
// Was there an explicit 'codecs' parameter provided?
bool HaveCodecs() const { return mHaveCodecs; }
// Codecs. May be empty if not provided or explicitly provided as empty.
const nsAString& GetCodecs() const { return mCodecs; }
// Sizes and rates.
Maybe<int32_t> GetWidth() const { return GetMaybeNumber(mWidth); }
Maybe<int32_t> GetHeight() const { return GetMaybeNumber(mHeight); }
Maybe<int32_t> GetFramerate() const { return GetMaybeNumber(mFramerate); }
Maybe<int32_t> GetBitrate() const { return GetMaybeNumber(mBitrate); }
private:
void Populate(const nsAString& aType);
Maybe<int32_t> GetMaybeNumber(int32_t aNumber) const
{
return (aNumber < 0) ? Maybe<int32_t>(Nothing()) : Some(int32_t(aNumber));
}
nsCString mMIMEType; // UTF8 MIME type. Empty if parsing failed.
bool mHaveCodecs; // If false, mCodecs must be empty.
nsString mCodecs;
int32_t mWidth; // -1 if not provided.
int32_t mHeight; // -1 if not provided.
int32_t mFramerate; // -1 if not provided.
int32_t mBitrate; // -1 if not provided.
};
} // namespace mozilla
#endif // MediaContentType_h_
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