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// Copyright (c) 2012 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/stream_parser_buffer.h"
#include <algorithm>
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "media/base/timestamp_constants.h"
namespace media {
scoped_refptr<StreamParserBuffer> StreamParserBuffer::CreateEOSBuffer() {
return make_scoped_refptr(new StreamParserBuffer(NULL, 0, NULL, 0, false,
DemuxerStream::UNKNOWN, 0));
}
scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom(
const uint8_t* data,
int data_size,
bool is_key_frame,
Type type,
TrackId track_id) {
return make_scoped_refptr(
new StreamParserBuffer(data, data_size, NULL, 0, is_key_frame, type,
track_id));
}
scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom(
const uint8_t* data,
int data_size,
const uint8_t* side_data,
int side_data_size,
bool is_key_frame,
Type type,
TrackId track_id) {
return make_scoped_refptr(
new StreamParserBuffer(data, data_size, side_data, side_data_size,
is_key_frame, type, track_id));
}
DecodeTimestamp StreamParserBuffer::GetDecodeTimestamp() const {
if (decode_timestamp_ == kNoDecodeTimestamp())
return DecodeTimestamp::FromPresentationTime(timestamp());
return decode_timestamp_;
}
void StreamParserBuffer::SetDecodeTimestamp(DecodeTimestamp timestamp) {
decode_timestamp_ = timestamp;
if (preroll_buffer_.get())
preroll_buffer_->SetDecodeTimestamp(timestamp);
}
StreamParserBuffer::StreamParserBuffer(const uint8_t* data,
int data_size,
const uint8_t* side_data,
int side_data_size,
bool is_key_frame,
Type type,
TrackId track_id)
: DecoderBuffer(data, data_size, side_data, side_data_size),
decode_timestamp_(kNoDecodeTimestamp()),
config_id_(kInvalidConfigId),
type_(type),
track_id_(track_id),
is_duration_estimated_(false) {
// TODO(scherkus): Should DataBuffer constructor accept a timestamp and
// duration to force clients to set them? Today they end up being zero which
// is both a common and valid value and could lead to bugs.
if (data) {
set_duration(kNoTimestamp);
}
if (is_key_frame)
set_is_key_frame(true);
}
StreamParserBuffer::~StreamParserBuffer() {}
int StreamParserBuffer::GetConfigId() const {
return config_id_;
}
void StreamParserBuffer::SetConfigId(int config_id) {
config_id_ = config_id;
if (preroll_buffer_.get())
preroll_buffer_->SetConfigId(config_id);
}
const char* StreamParserBuffer::GetTypeName() const {
switch (type()) {
case DemuxerStream::AUDIO:
return "audio";
case DemuxerStream::VIDEO:
return "video";
case DemuxerStream::TEXT:
return "text";
case DemuxerStream::UNKNOWN:
return "unknown";
}
NOTREACHED();
return "";
}
void StreamParserBuffer::SetPrerollBuffer(
const scoped_refptr<StreamParserBuffer>& preroll_buffer) {
DCHECK(!preroll_buffer_.get());
DCHECK(!end_of_stream());
DCHECK(!preroll_buffer->end_of_stream());
DCHECK(!preroll_buffer->preroll_buffer_.get());
DCHECK(preroll_buffer->timestamp() <= timestamp());
DCHECK(preroll_buffer->discard_padding() == DecoderBuffer::DiscardPadding());
DCHECK_EQ(preroll_buffer->type(), type());
DCHECK_EQ(preroll_buffer->track_id(), track_id());
preroll_buffer_ = preroll_buffer;
preroll_buffer_->set_timestamp(timestamp());
preroll_buffer_->SetConfigId(GetConfigId());
preroll_buffer_->SetDecodeTimestamp(GetDecodeTimestamp());
// Mark the entire buffer for discard.
preroll_buffer_->set_discard_padding(
std::make_pair(kInfiniteDuration, base::TimeDelta()));
}
void StreamParserBuffer::set_timestamp(base::TimeDelta timestamp) {
DecoderBuffer::set_timestamp(timestamp);
if (preroll_buffer_.get())
preroll_buffer_->set_timestamp(timestamp);
}
} // namespace media
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