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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.
#include "media/base/fake_text_track_stream.h"
#include <stdint.h>
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/single_thread_task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "media/base/decoder_buffer.h"
#include "media/filters/webvtt_util.h"
namespace media {
FakeTextTrackStream::FakeTextTrackStream()
: task_runner_(base::ThreadTaskRunnerHandle::Get()),
stopping_(false) {
}
FakeTextTrackStream::~FakeTextTrackStream() {
DCHECK(read_cb_.is_null());
}
void FakeTextTrackStream::Read(const ReadCB& read_cb) {
DCHECK(!read_cb.is_null());
DCHECK(read_cb_.is_null());
OnRead();
read_cb_ = read_cb;
if (stopping_) {
task_runner_->PostTask(FROM_HERE, base::Bind(
&FakeTextTrackStream::AbortPendingRead, base::Unretained(this)));
}
}
DemuxerStream::Type FakeTextTrackStream::type() const {
return DemuxerStream::TEXT;
}
bool FakeTextTrackStream::SupportsConfigChanges() { return false; }
VideoRotation FakeTextTrackStream::video_rotation() {
return VIDEO_ROTATION_0;
}
void FakeTextTrackStream::SatisfyPendingRead(
const base::TimeDelta& start,
const base::TimeDelta& duration,
const std::string& id,
const std::string& content,
const std::string& settings) {
DCHECK(!read_cb_.is_null());
const uint8_t* const data_buf =
reinterpret_cast<const uint8_t*>(content.data());
const int data_len = static_cast<int>(content.size());
std::vector<uint8_t> side_data;
MakeSideData(id.begin(), id.end(),
settings.begin(), settings.end(),
&side_data);
const uint8_t* const sd_buf = &side_data[0];
const int sd_len = static_cast<int>(side_data.size());
scoped_refptr<DecoderBuffer> buffer;
buffer = DecoderBuffer::CopyFrom(data_buf, data_len, sd_buf, sd_len);
buffer->set_timestamp(start);
buffer->set_duration(duration);
// Assume all fake text buffers are keyframes.
buffer->set_is_key_frame(true);
base::ResetAndReturn(&read_cb_).Run(kOk, buffer);
}
void FakeTextTrackStream::AbortPendingRead() {
DCHECK(!read_cb_.is_null());
base::ResetAndReturn(&read_cb_).Run(kAborted, NULL);
}
void FakeTextTrackStream::SendEosNotification() {
DCHECK(!read_cb_.is_null());
base::ResetAndReturn(&read_cb_).Run(kOk, DecoderBuffer::CreateEOSBuffer());
}
void FakeTextTrackStream::Stop() {
stopping_ = true;
if (!read_cb_.is_null())
AbortPendingRead();
}
} // namespace media
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