87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2014 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#include "packager/media/base/muxer.h"
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#include <algorithm>
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#include "packager/media/base/media_sample.h"
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namespace shaka {
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namespace media {
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namespace {
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const bool kInitialEncryptionInfo = true;
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} // namespace
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Muxer::Muxer(const MuxerOptions& options)
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: options_(options), cancelled_(false), clock_(NULL) {}
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Muxer::~Muxer() {}
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void Muxer::Cancel() {
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cancelled_ = true;
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}
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void Muxer::SetMuxerListener(std::unique_ptr<MuxerListener> muxer_listener) {
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muxer_listener_ = std::move(muxer_listener);
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}
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void Muxer::SetProgressListener(
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std::unique_ptr<ProgressListener> progress_listener) {
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progress_listener_ = std::move(progress_listener);
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}
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Status Muxer::Process(std::unique_ptr<StreamData> stream_data) {
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Status status;
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switch (stream_data->stream_data_type) {
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case StreamDataType::kStreamInfo:
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streams_.push_back(std::move(stream_data->stream_info));
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if (muxer_listener_ && streams_.back()->is_encrypted()) {
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const EncryptionConfig& encryption_config =
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streams_.back()->encryption_config();
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muxer_listener_->OnEncryptionInfoReady(
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kInitialEncryptionInfo, encryption_config.protection_scheme,
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encryption_config.key_id, encryption_config.constant_iv,
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encryption_config.key_system_info);
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current_key_id_ = encryption_config.key_id;
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}
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return InitializeMuxer();
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case StreamDataType::kSegmentInfo: {
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auto& segment_info = stream_data->segment_info;
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if (muxer_listener_ && segment_info->is_encrypted) {
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const EncryptionConfig* encryption_config =
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segment_info->key_rotation_encryption_config.get();
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// Only call OnEncryptionInfoReady again when key updates.
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if (encryption_config && encryption_config->key_id != current_key_id_) {
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muxer_listener_->OnEncryptionInfoReady(
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!kInitialEncryptionInfo, encryption_config->protection_scheme,
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encryption_config->key_id, encryption_config->constant_iv,
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encryption_config->key_system_info);
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current_key_id_ = encryption_config->key_id;
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}
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if (!encryption_started_) {
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encryption_started_ = true;
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muxer_listener_->OnEncryptionStart();
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}
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}
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return FinalizeSegment(stream_data->stream_index,
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std::move(segment_info));
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}
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case StreamDataType::kMediaSample:
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return AddSample(stream_data->stream_index,
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std::move(stream_data->media_sample));
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default:
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VLOG(3) << "Stream data type "
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<< static_cast<int>(stream_data->stream_data_type) << " ignored.";
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break;
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}
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// No dispatch for muxer.
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return Status::OK;
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}
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} // namespace media
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} // namespace shaka
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