1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MEDIA_BASE_SAMPLE_FORMAT_H
6 #define MEDIA_BASE_SAMPLE_FORMAT_H
8 #include "media/base/media_export.h"
13 // These values are histogrammed over time; do not change their ordinal
14 // values. When deleting a sample format replace it with a dummy value; when
15 // adding a sample format, do so at the bottom before kSampleFormatMax.
16 kUnknownSampleFormat
= 0,
17 kSampleFormatU8
, // Unsigned 8-bit w/ bias of 128.
18 kSampleFormatS16
, // Signed 16-bit.
19 kSampleFormatS32
, // Signed 32-bit.
20 kSampleFormatF32
, // Float 32-bit.
21 kSampleFormatPlanarS16
, // Signed 16-bit planar.
22 kSampleFormatPlanarF32
, // Float 32-bit planar.
24 // Must always be last!
28 // Returns the number of bytes used per channel for the specified
30 MEDIA_EXPORT
int SampleFormatToBytesPerChannel(SampleFormat sample_format
);
32 // Returns the name of the sample format as a string
33 MEDIA_EXPORT
const char* SampleFormatToString(SampleFormat sample_format
);
37 #endif // MEDIA_BASE_SAMPLE_FORMAT_H