chromium/media/base/sample_format.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_BASE_SAMPLE_FORMAT_H_
#define MEDIA_BASE_SAMPLE_FORMAT_H_

#include "media/base/media_shmem_export.h"

namespace media {

enum SampleFormat { … };

// Returns the number of bytes used per channel for the specified
// |sample_format|.
MEDIA_SHMEM_EXPORT int SampleFormatToBytesPerChannel(
    SampleFormat sample_format);
MEDIA_SHMEM_EXPORT int SampleFormatToBitsPerChannel(SampleFormat sample_format);

// Returns the name of the sample format as a string
MEDIA_SHMEM_EXPORT const char* SampleFormatToString(SampleFormat sample_format);

// Returns true if |sample_format| is planar, false otherwise.
MEDIA_SHMEM_EXPORT bool IsPlanar(SampleFormat sample_format);

// Returns true if |sample_format| is interleaved, false otherwise.
MEDIA_SHMEM_EXPORT bool IsInterleaved(SampleFormat sample_format);

// Returns true if |sample_format| is compressed bitstream, false otherwise.
MEDIA_SHMEM_EXPORT bool IsBitstream(SampleFormat sample_format);

}  // namespace media

#endif  // MEDIA_BASE_SAMPLE_FORMAT_H_