e029c4134f
BUG=138542 TBR=bbudge@chromium.org NOPRESUBMIT=true Review URL: https://codereview.chromium.org/1548813002 Cr-Commit-Position: refs/heads/master@{#366718}
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PPAPI_SHARED_IMPL_MEDIA_STREAM_BUFFER_H_
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#define PPAPI_SHARED_IMPL_MEDIA_STREAM_BUFFER_H_
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#include <stdint.h>
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#include "ppapi/c/ppb_audio_buffer.h"
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#include "ppapi/c/ppb_video_frame.h"
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namespace ppapi {
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union MediaStreamBuffer {
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enum Type {
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TYPE_UNKNOWN = 0,
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TYPE_AUDIO = 1,
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TYPE_VIDEO = 2,
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TYPE_BITSTREAM = 3
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};
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struct Header {
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Type type;
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uint32_t size;
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};
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struct Audio {
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Header header;
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PP_TimeDelta timestamp;
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PP_AudioBuffer_SampleRate sample_rate;
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uint32_t number_of_channels;
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uint32_t number_of_samples;
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uint32_t data_size;
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// Uses 8 bytes to make sure the Audio struct has consistent size between
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// NaCl code and renderer code.
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uint8_t data[8];
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};
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struct Video {
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Header header;
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PP_TimeDelta timestamp;
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PP_VideoFrame_Format format;
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PP_Size size;
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uint32_t data_size;
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// Uses 8 bytes to make sure the Video struct has consistent size between
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// NaCl code and renderer code.
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uint8_t data[8];
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};
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struct Bitstream {
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Header header;
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uint32_t data_size;
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// Uses 8 bytes to make sure the Bitstream struct has consistent size
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// between NaCl code and renderer code.
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uint8_t data[8];
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};
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// Because these structs are written and read in shared memory, we need
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// the size and alighment to be consistent between NaCl and its host trusted
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// platform.
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PP_COMPILE_ASSERT_SIZE_IN_BYTES(Header, 8);
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PP_COMPILE_ASSERT_SIZE_IN_BYTES(Audio, 40);
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PP_COMPILE_ASSERT_SIZE_IN_BYTES(Video, 40);
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PP_COMPILE_ASSERT_SIZE_IN_BYTES(Bitstream, 20);
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Header header;
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Video video;
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Audio audio;
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Bitstream bitstream;
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};
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} // namespace ppapi
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#endif // PPAPI_SHARED_IMPL_MEDIA_STREAM_BUFFER_H_
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