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// Copyright 2013 The Chromium Authors. All rights reserved.
// 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_export.h"
namespace media {
enum SampleFormat {
// These values are histogrammed over time; do not change their ordinal
// values. When deleting a sample format replace it with a dummy value; when
// adding a sample format, do so at the bottom before kSampleFormatMax, and
// update the value of kSampleFormatMax.
kUnknownSampleFormat = 0,
kSampleFormatU8, // Unsigned 8-bit w/ bias of 128.
kSampleFormatS16, // Signed 16-bit.
kSampleFormatS32, // Signed 32-bit.
kSampleFormatF32, // Float 32-bit.
kSampleFormatPlanarS16, // Signed 16-bit planar.
kSampleFormatPlanarF32, // Float 32-bit planar.
kSampleFormatPlanarS32, // Signed 32-bit planar.
kSampleFormatS24, // Signed 24-bit.
// Must always be equal to largest value ever logged.
kSampleFormatMax = kSampleFormatS24,
};
// Returns the number of bytes used per channel for the specified
// |sample_format|.
MEDIA_EXPORT int SampleFormatToBytesPerChannel(SampleFormat sample_format);
// Returns the name of the sample format as a string
MEDIA_EXPORT const char* SampleFormatToString(SampleFormat sample_format);
// Returns true if |sample_format| is planar, false otherwise.
MEDIA_EXPORT bool IsPlanar(SampleFormat sample_format);
// Returns true if |sample_format| is interleaved, false otherwise.
MEDIA_EXPORT bool IsInterleaved(SampleFormat sample_format);
} // namespace media
#endif // MEDIA_BASE_SAMPLE_FORMAT_H
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