Mirror-Tools
/
shaka-packager
mirror of https://github.com/shaka-project/shaka-packager.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
shaka-packager/packager/app/packager_main.cc

346 lines
12 KiB
C++
Raw Blame History

// Copyright 2014 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 <gflags/gflags.h>
#include <iostream>
#include "packager/app/fixed_key_encryption_flags.h"
#include "packager/app/libcrypto_threading.h"
#include "packager/app/mpd_flags.h"
#include "packager/app/muxer_flags.h"
#include "packager/app/packager_util.h"
#include "packager/app/stream_descriptor.h"
#include "packager/app/vlog_flags.h"
#include "packager/app/widevine_encryption_flags.h"
#include "packager/base/command_line.h"
#include "packager/base/logging.h"
#include "packager/base/stl_util.h"
#include "packager/base/strings/string_split.h"
#include "packager/base/strings/stringprintf.h"
#include "packager/base/threading/simple_thread.h"
#include "packager/base/time/clock.h"
#include "packager/media/base/demuxer.h"
#include "packager/media/base/key_source.h"
#include "packager/media/base/muxer_options.h"
#include "packager/media/base/muxer_util.h"
#include "packager/media/event/mpd_notify_muxer_listener.h"
#include "packager/media/event/vod_media_info_dump_muxer_listener.h"
#include "packager/media/formats/mp4/mp4_muxer.h"
#include "packager/mpd/base/dash_iop_mpd_notifier.h"
#include "packager/mpd/base/mpd_builder.h"
#include "packager/mpd/base/simple_mpd_notifier.h"
DEFINE_bool(use_fake_clock_for_muxer,
false,
"Set to true to use a fake clock for muxer. With this flag set, "
"creation time and modification time in outputs are set to 0. "
"Should only be used for testing.");
namespace {
const char kUsage[] =
"Packager driver program. Sample Usage:\n"
"%s [flags] <stream_descriptor> ...\n"
"stream_descriptor consists of comma separated field_name/value pairs:\n"
"field_name=value,[field_name=value,]...\n"
"Supported field names are as follows:\n"
" - input (in): Required input/source media file path or network stream "
"URL.\n"
" - stream_selector (stream): Required field with value 'audio', 'video', "
"or stream number (zero based).\n"
" - output (out): Required output file (single file) or initialization "
"file path (multiple file).\n"
" - segment_template (segment): Optional value which specifies the "
"naming pattern for the segment files, and that the stream should be "
"split into multiple files. Its presence should be consistent across "
"streams.\n"
" - bandwidth (bw): Optional value which contains a user-specified "
"content bit rate for the stream, in bits/sec. If specified, this value is "
"propagated to the $Bandwidth$ template parameter for segment names. "
"If not specified, its value may be estimated.\n"
" - language (lang): Optional value which contains a user-specified "
"language tag. If specified, this value overrides any language metadata "
"in the input track.\n";
enum ExitStatus {
kSuccess = 0,
kNoArgument,
kArgumentValidationFailed,
kPackagingFailed,
kInternalError,
};
} // namespace
namespace edash_packager {
namespace media {
// A fake clock that always return time 0 (epoch). Should only be used for
// testing.
class FakeClock : public base::Clock {
public:
base::Time Now() override { return base::Time(); }
};
// Demux, Mux(es) and worker thread used to remux a source file/stream.
class RemuxJob : public base::SimpleThread {
public:
RemuxJob(scoped_ptr<Demuxer> demuxer)
: SimpleThread("RemuxJob"),
demuxer_(demuxer.Pass()) {}
~RemuxJob() override {
STLDeleteElements(&muxers_);
}
void AddMuxer(scoped_ptr<Muxer> mux) {
muxers_.push_back(mux.release());
}
Demuxer* demuxer() { return demuxer_.get(); }
Status status() { return status_; }
private:
void Run() override {
DCHECK(demuxer_);
status_ = demuxer_->Run();
}
scoped_ptr<Demuxer> demuxer_;
std::vector<Muxer*> muxers_;
Status status_;
DISALLOW_COPY_AND_ASSIGN(RemuxJob);
};
bool CreateRemuxJobs(const StreamDescriptorList& stream_descriptors,
const MuxerOptions& muxer_options,
FakeClock* fake_clock,
KeySource* key_source,
MpdNotifier* mpd_notifier,
std::vector<RemuxJob*>* remux_jobs) {
DCHECK(remux_jobs);
std::string previous_input;
for (StreamDescriptorList::const_iterator stream_iter =
stream_descriptors.begin();
stream_iter != stream_descriptors.end();
++stream_iter) {
// Process stream descriptor.
MuxerOptions stream_muxer_options(muxer_options);
stream_muxer_options.output_file_name = stream_iter->output;
if (!stream_iter->segment_template.empty()) {
if (!ValidateSegmentTemplate(stream_iter->segment_template)) {
LOG(ERROR) << "ERROR: segment template with '"
<< stream_iter->segment_template << "' is invalid.";
return false;
}
stream_muxer_options.segment_template = stream_iter->segment_template;
}
stream_muxer_options.bandwidth = stream_iter->bandwidth;
if (stream_iter->input != previous_input) {
// New remux job needed. Create demux and job thread.
scoped_ptr<Demuxer> demuxer(new Demuxer(stream_iter->input));
if (FLAGS_enable_widevine_decryption ||
FLAGS_enable_fixed_key_decryption) {
scoped_ptr<KeySource> key_source(CreateDecryptionKeySource());
if (!key_source)
return false;
demuxer->SetKeySource(key_source.Pass());
}
Status status = demuxer->Initialize();
if (!status.ok()) {
LOG(ERROR) << "Demuxer failed to initialize: " << status.ToString();
return false;
}
if (FLAGS_dump_stream_info) {
printf("\nFile \"%s\":\n", stream_iter->input.c_str());
DumpStreamInfo(demuxer->streams());
if (stream_iter->output.empty())
continue; // just need stream info.
}
remux_jobs->push_back(new RemuxJob(demuxer.Pass()));
previous_input = stream_iter->input;
}
DCHECK(!remux_jobs->empty());
scoped_ptr<Muxer> muxer(new mp4::MP4Muxer(stream_muxer_options));
if (FLAGS_use_fake_clock_for_muxer) muxer->set_clock(fake_clock);
if (key_source) {
muxer->SetKeySource(key_source,
FLAGS_max_sd_pixels,
FLAGS_clear_lead,
FLAGS_crypto_period_duration);
}
scoped_ptr<MuxerListener> muxer_listener;
DCHECK(!(FLAGS_output_media_info && mpd_notifier));
if (FLAGS_output_media_info) {
const std::string output_media_info_file_name =
stream_muxer_options.output_file_name + ".media_info";
scoped_ptr<VodMediaInfoDumpMuxerListener>
vod_media_info_dump_muxer_listener(
new VodMediaInfoDumpMuxerListener(output_media_info_file_name));
vod_media_info_dump_muxer_listener->SetContentProtectionSchemeIdUri(
FLAGS_scheme_id_uri);
muxer_listener = vod_media_info_dump_muxer_listener.Pass();
}
if (mpd_notifier) {
scoped_ptr<MpdNotifyMuxerListener> mpd_notify_muxer_listener(
new MpdNotifyMuxerListener(mpd_notifier));
mpd_notify_muxer_listener->SetContentProtectionSchemeIdUri(
FLAGS_scheme_id_uri);
muxer_listener = mpd_notify_muxer_listener.Pass();
}
if (muxer_listener)
muxer->SetMuxerListener(muxer_listener.Pass());
if (!AddStreamToMuxer(remux_jobs->back()->demuxer()->streams(),
stream_iter->stream_selector,
stream_iter->language,
muxer.get()))
return false;
remux_jobs->back()->AddMuxer(muxer.Pass());
}
return true;
}
Status RunRemuxJobs(const std::vector<RemuxJob*>& remux_jobs) {
// Start the job threads.
for (std::vector<RemuxJob*>::const_iterator job_iter = remux_jobs.begin();
job_iter != remux_jobs.end();
++job_iter) {
(*job_iter)->Start();
}
// Wait for all jobs to complete or an error occurs.
Status status;
bool all_joined;
do {
all_joined = true;
for (std::vector<RemuxJob*>::const_iterator job_iter = remux_jobs.begin();
job_iter != remux_jobs.end();
++job_iter) {
if ((*job_iter)->HasBeenJoined()) {
status = (*job_iter)->status();
if (!status.ok())
break;
} else {
all_joined = false;
(*job_iter)->Join();
}
}
} while (!all_joined && status.ok());
return status;
}
bool RunPackager(const StreamDescriptorList& stream_descriptors) {
if (!AssignFlagsFromProfile())
return false;
if (FLAGS_output_media_info && !FLAGS_mpd_output.empty()) {
NOTIMPLEMENTED() << "ERROR: --output_media_info and --mpd_output do not "
"work together.";
return false;
}
if (FLAGS_output_media_info && !FLAGS_single_segment) {
// TODO(rkuroiwa, kqyang): Support partial media info dump for live.
NOTIMPLEMENTED() << "ERROR: --output_media_info is only supported if "
"--single_segment is true.";
return false;
}
// Get basic muxer options.
MuxerOptions muxer_options;
if (!GetMuxerOptions(&muxer_options))
return false;
MpdOptions mpd_options;
if (!GetMpdOptions(&mpd_options))
return false;
// Create encryption key source if needed.
scoped_ptr<KeySource> encryption_key_source;
if (FLAGS_enable_widevine_encryption || FLAGS_enable_fixed_key_encryption) {
encryption_key_source = CreateEncryptionKeySource();
if (!encryption_key_source)
return false;
}
scoped_ptr<MpdNotifier> mpd_notifier;
if (!FLAGS_mpd_output.empty()) {
DashProfile profile =
FLAGS_single_segment ? kOnDemandProfile : kLiveProfile;
std::vector<std::string> base_urls;
base::SplitString(FLAGS_base_urls, ',', &base_urls);
if (FLAGS_generate_dash_if_iop_compliant_mpd) {
mpd_notifier.reset(new DashIopMpdNotifier(profile, mpd_options, base_urls,
FLAGS_mpd_output));
} else {
mpd_notifier.reset(new SimpleMpdNotifier(profile, mpd_options, base_urls,
FLAGS_mpd_output));
}
if (!mpd_notifier->Init()) {
LOG(ERROR) << "MpdNotifier failed to initialize.";
return false;
}
}
std::vector<RemuxJob*> remux_jobs;
STLElementDeleter<std::vector<RemuxJob*> > scoped_jobs_deleter(&remux_jobs);
FakeClock fake_clock;
if (!CreateRemuxJobs(stream_descriptors, muxer_options, &fake_clock,
encryption_key_source.get(), mpd_notifier.get(),
&remux_jobs)) {
return false;
}
Status status = RunRemuxJobs(remux_jobs);
if (!status.ok()) {
LOG(ERROR) << "Packaging Error: " << status.ToString();
return false;
}
printf("Packaging completed successfully.\n");
return true;
}
int PackagerMain(int argc, char** argv) {
// Needed to enable VLOG/DVLOG through --vmodule or --v.
base::CommandLine::Init(argc, argv);
CHECK(logging::InitLogging(logging::LoggingSettings()));
google::SetUsageMessage(base::StringPrintf(kUsage, argv[0]));
google::ParseCommandLineFlags(&argc, &argv, true);
if (argc < 2) {
google::ShowUsageWithFlags(argv[0]);
return kNoArgument;
}
if (!ValidateWidevineCryptoFlags() || !ValidateFixedCryptoFlags())
return kArgumentValidationFailed;
edash_packager::media::LibcryptoThreading libcrypto_threading;
// TODO(tinskip): Make InsertStreamDescriptor a member of
// StreamDescriptorList.
StreamDescriptorList stream_descriptors;
for (int i = 1; i < argc; ++i) {
if (!InsertStreamDescriptor(argv[i], &stream_descriptors))
return kArgumentValidationFailed;
}
return RunPackager(stream_descriptors) ? kSuccess : kPackagingFailed;
}
} // namespace media
} // namespace edash_packager
int main(int argc, char** argv) {
return edash_packager::media::PackagerMain(argc, argv);
}
Reference in New Issue View Git Blame Copy Permalink