125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
// Copyright 2015 Google Inc. 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/webm_muxer.h"
|
|
|
|
#include "packager/media/base/fourccs.h"
|
|
#include "packager/media/base/media_sample.h"
|
|
#include "packager/media/base/media_stream.h"
|
|
#include "packager/media/base/stream_info.h"
|
|
#include "packager/media/formats/webm/mkv_writer.h"
|
|
#include "packager/media/formats/webm/multi_segment_segmenter.h"
|
|
#include "packager/media/formats/webm/single_segment_segmenter.h"
|
|
#include "packager/media/formats/webm/two_pass_single_segment_segmenter.h"
|
|
|
|
namespace shaka {
|
|
namespace media {
|
|
namespace webm {
|
|
|
|
WebMMuxer::WebMMuxer(const MuxerOptions& options) : Muxer(options) {}
|
|
WebMMuxer::~WebMMuxer() {}
|
|
|
|
Status WebMMuxer::Initialize() {
|
|
CHECK_EQ(streams().size(), 1U);
|
|
|
|
if (crypto_period_duration_in_seconds() > 0) {
|
|
NOTIMPLEMENTED() << "Key rotation is not implemented for WebM";
|
|
return Status(error::UNIMPLEMENTED,
|
|
"Key rotation is not implemented for WebM");
|
|
}
|
|
|
|
if (encryption_key_source() && (protection_scheme() != FOURCC_cenc)) {
|
|
NOTIMPLEMENTED()
|
|
<< "WebM does not support protection scheme other than 'cenc'.";
|
|
return Status(error::UNIMPLEMENTED,
|
|
"WebM does not support protection scheme other than 'cenc'.");
|
|
}
|
|
|
|
std::unique_ptr<MkvWriter> writer(new MkvWriter);
|
|
Status status = writer->Open(options().output_file_name);
|
|
if (!status.ok())
|
|
return status;
|
|
|
|
if (!options().single_segment) {
|
|
segmenter_.reset(new MultiSegmentSegmenter(options()));
|
|
} else {
|
|
segmenter_.reset(new TwoPassSingleSegmentSegmenter(options()));
|
|
}
|
|
|
|
Status initialized = segmenter_->Initialize(
|
|
std::move(writer), streams()[0]->info().get(), progress_listener(),
|
|
muxer_listener(), encryption_key_source(), max_sd_pixels(),
|
|
clear_lead_in_seconds());
|
|
|
|
if (!initialized.ok())
|
|
return initialized;
|
|
|
|
FireOnMediaStartEvent();
|
|
return Status::OK;
|
|
}
|
|
|
|
Status WebMMuxer::Finalize() {
|
|
DCHECK(segmenter_);
|
|
Status segmenter_finalized = segmenter_->Finalize();
|
|
|
|
if (!segmenter_finalized.ok())
|
|
return segmenter_finalized;
|
|
|
|
FireOnMediaEndEvent();
|
|
LOG(INFO) << "WEBM file '" << options().output_file_name << "' finalized.";
|
|
return Status::OK;
|
|
}
|
|
|
|
Status WebMMuxer::DoAddSample(const MediaStream* stream,
|
|
scoped_refptr<MediaSample> sample) {
|
|
DCHECK(segmenter_);
|
|
DCHECK(stream == streams()[0]);
|
|
return segmenter_->AddSample(sample);
|
|
}
|
|
|
|
void WebMMuxer::FireOnMediaStartEvent() {
|
|
if (!muxer_listener())
|
|
return;
|
|
|
|
DCHECK(!streams().empty()) << "Media started without a stream.";
|
|
|
|
const uint32_t timescale = streams().front()->info()->time_scale();
|
|
muxer_listener()->OnMediaStart(options(), *streams().front()->info(),
|
|
timescale, MuxerListener::kContainerWebM);
|
|
}
|
|
|
|
void WebMMuxer::FireOnMediaEndEvent() {
|
|
if (!muxer_listener())
|
|
return;
|
|
|
|
uint64_t init_range_start = 0;
|
|
uint64_t init_range_end = 0;
|
|
const bool has_init_range =
|
|
segmenter_->GetInitRangeStartAndEnd(&init_range_start, &init_range_end);
|
|
|
|
uint64_t index_range_start = 0;
|
|
uint64_t index_range_end = 0;
|
|
const bool has_index_range = segmenter_->GetIndexRangeStartAndEnd(
|
|
&index_range_start, &index_range_end);
|
|
|
|
const float duration_seconds = segmenter_->GetDuration();
|
|
|
|
const int64_t file_size =
|
|
File::GetFileSize(options().output_file_name.c_str());
|
|
if (file_size <= 0) {
|
|
LOG(ERROR) << "Invalid file size: " << file_size;
|
|
return;
|
|
}
|
|
|
|
muxer_listener()->OnMediaEnd(has_init_range, init_range_start, init_range_end,
|
|
has_index_range, index_range_start,
|
|
index_range_end, duration_seconds, file_size);
|
|
}
|
|
|
|
} // namespace webm
|
|
} // namespace media
|
|
} // namespace shaka
|