shaka-packager/packager/media/formats/webm/multi_segment_segmenter.cc

114 lines
3.7 KiB
C++

// Copyright 2015 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#include <packager/media/formats/webm/multi_segment_segmenter.h>
#include <absl/log/check.h>
#include <mkvmuxer/mkvmuxer.h>
#include <packager/macros/logging.h>
#include <packager/macros/status.h>
#include <packager/media/base/muxer_options.h>
#include <packager/media/base/muxer_util.h>
#include <packager/media/base/stream_info.h>
#include <packager/media/event/muxer_listener.h>
namespace shaka {
namespace media {
namespace webm {
MultiSegmentSegmenter::MultiSegmentSegmenter(const MuxerOptions& options)
: Segmenter(options), num_segment_(0) {}
MultiSegmentSegmenter::~MultiSegmentSegmenter() {}
Status MultiSegmentSegmenter::FinalizeSegment(int64_t start_timestamp,
int64_t duration_timestamp,
bool is_subsegment,
int64_t segment_number) {
CHECK(cluster());
RETURN_IF_ERROR(Segmenter::FinalizeSegment(
start_timestamp, duration_timestamp, is_subsegment, segment_number));
if (!cluster()->Finalize())
return Status(error::FILE_FAILURE, "Error finalizing segment.");
if (!is_subsegment) {
std::string segment_name =
GetSegmentName(options().segment_template, start_timestamp,
segment_number, options().bandwidth);
// Close the file, which also does flushing, to make sure the file is
// written before manifest is updated.
RETURN_IF_ERROR(writer_->Close());
if (!File::Copy(temp_file_name_.c_str(), segment_name.c_str()))
return Status(error::FILE_FAILURE, "Failure to copy memory file.");
if (!File::Delete(temp_file_name_.c_str()))
return Status(error::FILE_FAILURE, "Failure to delete memory file.");
num_segment_++;
if (muxer_listener()) {
const uint64_t size = cluster()->Size();
muxer_listener()->OnNewSegment(segment_name, start_timestamp,
duration_timestamp, size, segment_number);
}
VLOG(1) << "WEBM file '" << segment_name << "' finalized.";
}
return Status::OK;
}
bool MultiSegmentSegmenter::GetInitRangeStartAndEnd(uint64_t* /*start*/,
uint64_t* /*end*/) {
return false;
}
bool MultiSegmentSegmenter::GetIndexRangeStartAndEnd(uint64_t* /*start*/,
uint64_t* /*end*/) {
return false;
}
std::vector<Range> MultiSegmentSegmenter::GetSegmentRanges() {
return std::vector<Range>();
}
Status MultiSegmentSegmenter::DoInitialize() {
std::unique_ptr<MkvWriter> writer(new MkvWriter);
Status status = writer->Open(options().output_file_name);
if (!status.ok())
return status;
writer_ = std::move(writer);
return WriteSegmentHeader(0, writer_.get());
}
Status MultiSegmentSegmenter::DoFinalize() {
return Status::OK;
}
Status MultiSegmentSegmenter::NewSegment(int64_t start_timestamp,
bool is_subsegment) {
if (!is_subsegment) {
temp_file_name_ =
"memory://" + GetSegmentName(options().segment_template,
start_timestamp, num_segment_,
options().bandwidth);
writer_.reset(new MkvWriter);
Status status = writer_->Open(temp_file_name_);
if (!status.ok())
return status;
}
const int64_t start_timecode = FromBmffTimestamp(start_timestamp);
return SetCluster(start_timecode, 0, writer_.get());
}
} // namespace webm
} // namespace media
} // namespace shaka