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// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef STARBOARD_ANDROID_SHARED_PLAYER_COMPONENTS_FACTORY_H_
#define STARBOARD_ANDROID_SHARED_PLAYER_COMPONENTS_FACTORY_H_
#include <string>
#include <vector>
#include "starboard/android/shared/audio_decoder.h"
#include "starboard/android/shared/audio_renderer_passthrough.h"
#include "starboard/android/shared/audio_track_audio_sink_type.h"
#include "starboard/android/shared/drm_system.h"
#include "starboard/android/shared/jni_env_ext.h"
#include "starboard/android/shared/jni_utils.h"
#include "starboard/android/shared/media_capabilities_cache.h"
#include "starboard/android/shared/media_common.h"
#include "starboard/android/shared/video_decoder.h"
#include "starboard/atomic.h"
#include "starboard/common/log.h"
#include "starboard/common/media.h"
#include "starboard/common/ref_counted.h"
#include "starboard/common/scoped_ptr.h"
#include "starboard/media.h"
#include "starboard/shared/opus/opus_audio_decoder.h"
#include "starboard/shared/starboard/media/media_util.h"
#include "starboard/shared/starboard/media/mime_type.h"
#include "starboard/shared/starboard/player/filter/adaptive_audio_decoder_internal.h"
#include "starboard/shared/starboard/player/filter/audio_decoder_internal.h"
#include "starboard/shared/starboard/player/filter/audio_renderer_sink.h"
#include "starboard/shared/starboard/player/filter/audio_renderer_sink_impl.h"
#include "starboard/shared/starboard/player/filter/player_components.h"
#include "starboard/shared/starboard/player/filter/video_decoder_internal.h"
#include "starboard/shared/starboard/player/filter/video_render_algorithm.h"
#include "starboard/shared/starboard/player/filter/video_render_algorithm_impl.h"
#include "starboard/shared/starboard/player/filter/video_renderer_internal_impl.h"
#include "starboard/shared/starboard/player/filter/video_renderer_sink.h"
namespace starboard {
namespace android {
namespace shared {
// Tunnel mode has to be enabled explicitly by the web app via mime attributes
// "tunnelmode", set the following variable to true to force enabling tunnel
// mode on all playbacks.
constexpr bool kForceTunnelMode = false;
// By default, the platform Opus decoder is only enabled for encrypted playback.
// Set the following variable to true to force it for clear playback.
constexpr bool kForcePlatformOpusDecoder = false;
// On some platforms tunnel mode is only supported in the secure pipeline. Set
// the following variable to true to force creating a secure pipeline in tunnel
// mode, even for clear content.
// TODO: Allow this to be configured per playback at run time from the web app.
constexpr bool kForceSecurePipelineInTunnelModeWhenRequired = true;
// Forces video surface to reset after tunnel mode playbacks. This prevents
// video distortion on some platforms.
constexpr bool kForceResetSurfaceUnderTunnelMode = true;
// This class allows us to force int16 sample type when tunnel mode is enabled.
class AudioRendererSinkAndroid : public ::starboard::shared::starboard::player::
filter::AudioRendererSinkImpl {
public:
explicit AudioRendererSinkAndroid(bool enable_audio_device_callback,
bool enable_pcm_content_type_movie,
int tunnel_mode_audio_session_id = -1)
: AudioRendererSinkImpl(
[=](SbTime start_media_time,
int channels,
int sampling_frequency_hz,
SbMediaAudioSampleType audio_sample_type,
SbMediaAudioFrameStorageType audio_frame_storage_type,
SbAudioSinkFrameBuffers frame_buffers,
int frame_buffers_size_in_frames,
SbAudioSinkUpdateSourceStatusFunc update_source_status_func,
SbAudioSinkPrivate::ConsumeFramesFunc consume_frames_func,
SbAudioSinkPrivate::ErrorFunc error_func,
void* context) {
auto type = static_cast<AudioTrackAudioSinkType*>(
SbAudioSinkPrivate::GetPreferredType());
return type->Create(
channels, sampling_frequency_hz, audio_sample_type,
audio_frame_storage_type, frame_buffers,
frame_buffers_size_in_frames, update_source_status_func,
consume_frames_func, error_func, start_media_time,
tunnel_mode_audio_session_id, enable_audio_device_callback,
enable_pcm_content_type_movie, false, /* is_web_audio */
context);
}),
tunnel_mode_audio_session_id_(tunnel_mode_audio_session_id) {}
private:
bool IsAudioSampleTypeSupported(
SbMediaAudioSampleType audio_sample_type) const override {
if (tunnel_mode_audio_session_id_ != -1) {
// Currently the implementation only supports tunnel mode with int16 audio
// samples.
return audio_sample_type == kSbMediaAudioSampleTypeInt16Deprecated;
}
return SbAudioSinkIsAudioSampleTypeSupported(audio_sample_type);
}
const int tunnel_mode_audio_session_id_;
};
class AudioRendererSinkCallbackStub
: public starboard::shared::starboard::player::filter::AudioRendererSink::
RenderCallback {
public:
bool error_occurred() const { return error_occurred_.load(); }
private:
void GetSourceStatus(int* frames_in_buffer,
int* offset_in_frames,
bool* is_playing,
bool* is_eos_reached) override {
*frames_in_buffer = *offset_in_frames = 0;
*is_playing = true;
*is_eos_reached = false;
}
void ConsumeFrames(int frames_consumed, SbTime frames_consumed_at) override {
SB_DCHECK(frames_consumed == 0);
}
void OnError(bool capability_changed,
const std::string& error_message) override {
error_occurred_.store(true);
}
atomic_bool error_occurred_;
};
class PlayerComponentsPassthrough
: public starboard::shared::starboard::player::filter::PlayerComponents {
public:
PlayerComponentsPassthrough(
scoped_ptr<AudioRendererPassthrough> audio_renderer,
scoped_ptr<VideoRenderer> video_renderer)
: audio_renderer_(audio_renderer.Pass()),
video_renderer_(video_renderer.Pass()) {}
private:
// PlayerComponents methods
MediaTimeProvider* GetMediaTimeProvider() override {
return audio_renderer_.get();
}
AudioRenderer* GetAudioRenderer() override { return audio_renderer_.get(); }
VideoRenderer* GetVideoRenderer() override { return video_renderer_.get(); }
scoped_ptr<AudioRendererPassthrough> audio_renderer_;
scoped_ptr<VideoRenderer> video_renderer_;
};
// TODO: Invesigate if the implementation of member functions should be moved
// into .cc file.
class PlayerComponentsFactory : public starboard::shared::starboard::player::
filter::PlayerComponents::Factory {
typedef starboard::shared::starboard::media::MimeType MimeType;
typedef starboard::shared::opus::OpusAudioDecoder OpusAudioDecoder;
typedef starboard::shared::starboard::player::filter::AdaptiveAudioDecoder
AdaptiveAudioDecoder;
typedef starboard::shared::starboard::player::filter::AudioDecoder
AudioDecoderBase;
typedef starboard::shared::starboard::player::filter::AudioRendererSink
AudioRendererSink;
typedef starboard::shared::starboard::player::filter::AudioRendererSinkImpl
AudioRendererSinkImpl;
typedef starboard::shared::starboard::player::filter::PlayerComponents
PlayerComponents;
typedef starboard::shared::starboard::player::filter::VideoDecoder
VideoDecoderBase;
typedef starboard::shared::starboard::player::filter::VideoRenderAlgorithm
VideoRenderAlgorithmBase;
typedef starboard::shared::starboard::player::filter::VideoRendererSink
VideoRendererSink;
const int kAudioSinkFramesAlignment = 256;
const int kDefaultAudioSinkMinFramesPerAppend = 1024;
const int kDefaultAudioSinkMaxCachedFrames =
8 * kDefaultAudioSinkMinFramesPerAppend;
static int AlignUp(int value, int alignment) {
return (value + alignment - 1) / alignment * alignment;
}
scoped_ptr<PlayerComponents> CreateComponents(
const CreationParameters& creation_parameters,
std::string* error_message) override {
SB_DCHECK(error_message);
if (creation_parameters.audio_codec() != kSbMediaAudioCodecAc3 &&
creation_parameters.audio_codec() != kSbMediaAudioCodecEac3) {
SB_LOG(INFO) << "Creating non-passthrough components.";
return PlayerComponents::Factory::CreateComponents(creation_parameters,
error_message);
}
bool enable_audio_device_callback = true;
if (!creation_parameters.audio_mime().empty()) {
MimeType audio_mime_type(creation_parameters.audio_mime());
if (!audio_mime_type.is_valid() ||
!audio_mime_type.ValidateBoolParameter("enableaudiodevicecallback") ||
!audio_mime_type.ValidateBoolParameter("audiopassthrough")) {
return scoped_ptr<PlayerComponents>();
}
enable_audio_device_callback =
audio_mime_type.GetParamBoolValue("enableaudiodevicecallback", true);
SB_LOG(INFO) << "AudioDeviceCallback is "
<< (enable_audio_device_callback ? "enabled." : "disabled.");
if (!audio_mime_type.GetParamBoolValue("audiopassthrough", true)) {
SB_LOG(INFO) << "Mime attribute \"audiopassthrough\" is set to: "
"false. Passthrough is disabled.";
return scoped_ptr<PlayerComponents>();
}
}
SB_LOG(INFO) << "Creating passthrough components.";
// TODO: Enable tunnel mode for passthrough
scoped_ptr<AudioRendererPassthrough> audio_renderer;
audio_renderer.reset(new AudioRendererPassthrough(
creation_parameters.audio_stream_info(),
creation_parameters.drm_system(), enable_audio_device_callback));
if (!audio_renderer->is_valid()) {
return scoped_ptr<PlayerComponents>();
}
scoped_ptr<::starboard::shared::starboard::player::filter::VideoRenderer>
video_renderer;
if (creation_parameters.video_codec() != kSbMediaVideoCodecNone) {
constexpr int kTunnelModeAudioSessionId = -1;
constexpr bool kForceSecurePipelineUnderTunnelMode = false;
bool force_improved_support_check = true;
if (!creation_parameters.video_mime().empty()) {
MimeType video_mime_type(creation_parameters.video_mime());
if (!video_mime_type.is_valid() ||
!video_mime_type.ValidateBoolParameter(
"forceimprovedsupportcheck")) {
return scoped_ptr<PlayerComponents>();
}
force_improved_support_check = video_mime_type.GetParamBoolValue(
"forceimprovedsupportcheck", true);
SB_LOG_IF(INFO, !force_improved_support_check)
<< "Improved support check is disabled for queries under 4K.";
}
scoped_ptr<VideoDecoder> video_decoder =
CreateVideoDecoder(creation_parameters, kTunnelModeAudioSessionId,
kForceSecurePipelineUnderTunnelMode,
force_improved_support_check, error_message);
if (video_decoder) {
using starboard::shared::starboard::player::filter::VideoRendererImpl;
auto video_render_algorithm = video_decoder->GetRenderAlgorithm();
auto video_renderer_sink = video_decoder->GetSink();
auto media_time_provider = audio_renderer.get();
video_renderer.reset(new VideoRendererImpl(
scoped_ptr<VideoDecoderBase>(video_decoder.Pass()),
media_time_provider, video_render_algorithm.Pass(),
video_renderer_sink));
} else {
return scoped_ptr<PlayerComponents>();
}
}
return scoped_ptr<PlayerComponents>(new PlayerComponentsPassthrough(
audio_renderer.Pass(), video_renderer.Pass()));
}
bool CreateSubComponents(
const CreationParameters& creation_parameters,
scoped_ptr<AudioDecoderBase>* audio_decoder,
scoped_ptr<AudioRendererSink>* audio_renderer_sink,
scoped_ptr<VideoDecoderBase>* video_decoder,
scoped_ptr<VideoRenderAlgorithmBase>* video_render_algorithm,
scoped_refptr<VideoRendererSink>* video_renderer_sink,
std::string* error_message) override {
SB_DCHECK(error_message);
const std::string audio_mime =
creation_parameters.audio_codec() != kSbMediaAudioCodecNone
? creation_parameters.audio_mime()
: "";
MimeType audio_mime_type(audio_mime);
if (!audio_mime.empty()) {
if (!audio_mime_type.is_valid() ||
!audio_mime_type.ValidateBoolParameter("tunnelmode") ||
!audio_mime_type.ValidateBoolParameter("enableaudiodevicecallback") ||
!audio_mime_type.ValidateBoolParameter("enablepcmcontenttypemovie")) {
*error_message =
"Invalid audio MIME: '" + std::string(audio_mime) + "'";
return false;
}
}
const std::string video_mime =
creation_parameters.video_codec() != kSbMediaVideoCodecNone
? creation_parameters.video_mime()
: "";
MimeType video_mime_type(video_mime);
if (!video_mime.empty()) {
if (!video_mime_type.is_valid() ||
!video_mime_type.ValidateBoolParameter("tunnelmode") ||
!video_mime_type.ValidateBoolParameter("forceimprovedsupportcheck")) {
*error_message =
"Invalid video MIME: '" + std::string(video_mime) + "'";
return false;
}
}
int tunnel_mode_audio_session_id = -1;
bool enable_tunnel_mode = false;
if (creation_parameters.audio_codec() != kSbMediaAudioCodecNone &&
creation_parameters.video_codec() != kSbMediaVideoCodecNone) {
bool enable_tunnel_mode =
audio_mime_type.GetParamBoolValue("tunnelmode", false) &&
video_mime_type.GetParamBoolValue("tunnelmode", false);
if (!enable_tunnel_mode) {
SB_LOG(INFO) << "Tunnel mode is disabled. "
<< "Audio mime parameter \"tunnelmode\" value: "
<< audio_mime_type.GetParamStringValue("tunnelmode",
"<not provided>")
<< ", video mime parameter \"tunnelmode\" value: "
<< video_mime_type.GetParamStringValue("tunnelmode",
"<not provided>")
<< ".";
}
} else {
SB_LOG(INFO) << "Tunnel mode requires both an audio and video stream. "
<< "Audio codec: "
<< GetMediaAudioCodecName(creation_parameters.audio_codec())
<< ", Video codec: "
<< GetMediaVideoCodecName(creation_parameters.video_codec())
<< ". Tunnel mode is disabled.";
}
if (kForceTunnelMode && !enable_tunnel_mode) {
SB_LOG(INFO) << "`kForceTunnelMode` is set to true, force enabling tunnel"
<< " mode.";
enable_tunnel_mode = true;
}
const bool force_improved_support_check =
video_mime_type.GetParamBoolValue("forceimprovedsupportcheck", true);
SB_LOG_IF(INFO, !force_improved_support_check)
<< "Improved support check is disabled for queries under 4K.";
bool force_secure_pipeline_under_tunnel_mode = false;
if (enable_tunnel_mode &&
IsTunnelModeSupported(creation_parameters,
&force_secure_pipeline_under_tunnel_mode,
force_improved_support_check)) {
tunnel_mode_audio_session_id = GenerateAudioSessionId(
creation_parameters, force_improved_support_check);
}
if (tunnel_mode_audio_session_id == -1) {
SB_LOG(INFO) << "Create non-tunnel mode pipeline.";
} else {
SB_LOG_IF(INFO, !kForceResetSurfaceUnderTunnelMode)
<< "`kForceResetSurfaceUnderTunnelMode` is set to false, the video "
"surface will not be forced to reset after "
"tunneled playback.";
SB_LOG(INFO) << "Create tunnel mode pipeline with audio session id "
<< tunnel_mode_audio_session_id << '.';
}
if (creation_parameters.audio_codec() != kSbMediaAudioCodecNone) {
SB_DCHECK(audio_decoder);
SB_DCHECK(audio_renderer_sink);
using starboard::shared::starboard::media::AudioStreamInfo;
auto decoder_creator = [](const AudioStreamInfo& audio_stream_info,
SbDrmSystem drm_system) {
bool use_libopus_decoder =
audio_stream_info.codec == kSbMediaAudioCodecOpus &&
!SbDrmSystemIsValid(drm_system) && !kForcePlatformOpusDecoder;
if (use_libopus_decoder) {
scoped_ptr<OpusAudioDecoder> audio_decoder_impl(
new OpusAudioDecoder(audio_stream_info));
if (audio_decoder_impl->is_valid()) {
return audio_decoder_impl.PassAs<AudioDecoderBase>();
}
} else if (audio_stream_info.codec == kSbMediaAudioCodecAac ||
audio_stream_info.codec == kSbMediaAudioCodecOpus) {
scoped_ptr<AudioDecoder> audio_decoder_impl(
new AudioDecoder(audio_stream_info, drm_system));
if (audio_decoder_impl->is_valid()) {
return audio_decoder_impl.PassAs<AudioDecoderBase>();
}
} else {
SB_LOG(ERROR) << "Unsupported audio codec "
<< audio_stream_info.codec;
}
return scoped_ptr<AudioDecoderBase>();
};
audio_decoder->reset(new AdaptiveAudioDecoder(
creation_parameters.audio_stream_info(),
creation_parameters.drm_system(), decoder_creator));
bool enable_audio_device_callback =
audio_mime_type.GetParamBoolValue("enableaudiodevicecallback", true);
SB_LOG(INFO) << "AudioDeviceCallback is "
<< (enable_audio_device_callback ? "enabled." : "disabled.");
bool enable_pcm_content_type_movie =
audio_mime_type.GetParamBoolValue("enablepcmcontenttypemovie", true);
SB_LOG(INFO) << "AudioAttributes::CONTENT_TYPE_MOVIE is "
<< (enable_pcm_content_type_movie ? "enabled" : "disabled")
<< " for non-tunneled PCM audio playback.";
if (tunnel_mode_audio_session_id != -1) {
*audio_renderer_sink = TryToCreateTunnelModeAudioRendererSink(
tunnel_mode_audio_session_id, creation_parameters,
enable_audio_device_callback);
if (!*audio_renderer_sink) {
tunnel_mode_audio_session_id = -1;
}
}
if (!*audio_renderer_sink) {
audio_renderer_sink->reset(new AudioRendererSinkAndroid(
enable_audio_device_callback, enable_pcm_content_type_movie));
}
}
if (creation_parameters.video_codec() != kSbMediaVideoCodecNone) {
SB_DCHECK(video_decoder);
SB_DCHECK(video_render_algorithm);
SB_DCHECK(video_renderer_sink);
SB_DCHECK(error_message);
if (tunnel_mode_audio_session_id == -1) {
force_secure_pipeline_under_tunnel_mode = false;
}
scoped_ptr<VideoDecoder> video_decoder_impl =
CreateVideoDecoder(creation_parameters, tunnel_mode_audio_session_id,
force_secure_pipeline_under_tunnel_mode,
force_improved_support_check, error_message);
if (video_decoder_impl) {
*video_render_algorithm = video_decoder_impl->GetRenderAlgorithm();
*video_renderer_sink = video_decoder_impl->GetSink();
video_decoder->reset(video_decoder_impl.release());
} else {
video_decoder->reset();
*video_renderer_sink = NULL;
return false;
}
}
return true;
}
void GetAudioRendererParams(const CreationParameters& creation_parameters,
int* max_cached_frames,
int* min_frames_per_append) const override {
SB_DCHECK(max_cached_frames);
SB_DCHECK(min_frames_per_append);
SB_DCHECK(kDefaultAudioSinkMinFramesPerAppend % kAudioSinkFramesAlignment ==
0);
*min_frames_per_append = kDefaultAudioSinkMinFramesPerAppend;
// AudioRenderer prefers to use kSbMediaAudioSampleTypeFloat32 and only uses
// kSbMediaAudioSampleTypeInt16Deprecated when float32 is not supported.
int min_frames_required = SbAudioSinkGetMinBufferSizeInFrames(
creation_parameters.audio_stream_info().number_of_channels,
SbAudioSinkIsAudioSampleTypeSupported(kSbMediaAudioSampleTypeFloat32)
? kSbMediaAudioSampleTypeFloat32
: kSbMediaAudioSampleTypeInt16Deprecated,
creation_parameters.audio_stream_info().samples_per_second);
// On Android 5.0, the size of audio renderer sink buffer need to be two
// times larger than AudioTrack minBufferSize. Otherwise, AudioTrack may
// stop working after pause.
*max_cached_frames =
min_frames_required * 2 + kDefaultAudioSinkMinFramesPerAppend;
*max_cached_frames = AlignUp(*max_cached_frames, kAudioSinkFramesAlignment);
}
scoped_ptr<VideoDecoder> CreateVideoDecoder(
const CreationParameters& creation_parameters,
int tunnel_mode_audio_session_id,
bool force_secure_pipeline_under_tunnel_mode,
bool force_improved_support_check,
std::string* error_message) {
bool force_big_endian_hdr_metadata = false;
if (!creation_parameters.video_mime().empty()) {
// Use mime param to determine endianness of HDR metadata. If param is
// missing or invalid it defaults to Little Endian.
MimeType video_mime_type(creation_parameters.video_mime());
video_mime_type.ValidateStringParameter("hdrinfoendianness",
"big|little");
const std::string& hdr_info_endianness =
video_mime_type.GetParamStringValue("hdrinfoendianness",
/*default=*/"little");
force_big_endian_hdr_metadata = hdr_info_endianness == "big";
}
scoped_ptr<VideoDecoder> video_decoder(new VideoDecoder(
creation_parameters.video_codec(), creation_parameters.drm_system(),
creation_parameters.output_mode(),
creation_parameters.decode_target_graphics_context_provider(),
creation_parameters.max_video_capabilities(),
tunnel_mode_audio_session_id, force_secure_pipeline_under_tunnel_mode,
kForceResetSurfaceUnderTunnelMode, force_big_endian_hdr_metadata,
force_improved_support_check, error_message));
if (creation_parameters.video_codec() == kSbMediaVideoCodecAv1 ||
video_decoder->is_decoder_created()) {
return video_decoder.Pass();
}
*error_message =
"Failed to create video decoder with error: " + *error_message;
return scoped_ptr<VideoDecoder>();
}
bool IsTunnelModeSupported(const CreationParameters& creation_parameters,
bool* force_secure_pipeline_under_tunnel_mode,
const bool force_improved_support_check) {
SB_DCHECK(force_secure_pipeline_under_tunnel_mode);
*force_secure_pipeline_under_tunnel_mode = false;
if (!SbAudioSinkIsAudioSampleTypeSupported(
kSbMediaAudioSampleTypeInt16Deprecated)) {
SB_LOG(INFO) << "Disable tunnel mode because int16 sample is required "
"but not supported.";
return false;
}
if (creation_parameters.output_mode() != kSbPlayerOutputModePunchOut) {
SB_LOG(INFO)
<< "Disable tunnel mode because output mode is not punchout.";
return false;
}
if (creation_parameters.audio_codec() == kSbMediaAudioCodecNone) {
SB_LOG(INFO) << "Disable tunnel mode because audio codec is none.";
return false;
}
if (creation_parameters.video_codec() == kSbMediaVideoCodecNone) {
SB_LOG(INFO) << "Disable tunnel mode because video codec is none.";
return false;
}
const char* mime =
SupportedVideoCodecToMimeType(creation_parameters.video_codec());
if (!mime) {
SB_LOG(INFO) << "Disable tunnel mode because "
<< creation_parameters.video_codec() << " is not supported.";
return false;
}
DrmSystem* drm_system_ptr =
static_cast<DrmSystem*>(creation_parameters.drm_system());
jobject j_media_crypto =
drm_system_ptr ? drm_system_ptr->GetMediaCrypto() : NULL;
bool is_encrypted = !!j_media_crypto;
if (MediaCapabilitiesCache::GetInstance()->HasVideoDecoderFor(
mime, is_encrypted, false, true, force_improved_support_check, 0, 0,
0, 0)) {
return true;
}
if (kForceSecurePipelineInTunnelModeWhenRequired && !is_encrypted) {
const bool kIsEncrypted = true;
auto support_tunnel_mode_under_secure_pipeline =
MediaCapabilitiesCache::GetInstance()->HasVideoDecoderFor(
mime, kIsEncrypted, false, true, force_improved_support_check, 0,
0, 0, 0);
if (support_tunnel_mode_under_secure_pipeline) {
*force_secure_pipeline_under_tunnel_mode = true;
return true;
}
}
SB_LOG(INFO) << "Disable tunnel mode because no tunneled decoder for "
<< mime << '.';
return false;
}
int GenerateAudioSessionId(const CreationParameters& creation_parameters,
const bool force_improved_support_check) {
bool force_secure_pipeline_under_tunnel_mode = false;
SB_DCHECK(IsTunnelModeSupported(creation_parameters,
&force_secure_pipeline_under_tunnel_mode,
force_improved_support_check));
JniEnvExt* env = JniEnvExt::Get();
ScopedLocalJavaRef<jobject> j_audio_output_manager(
env->CallStarboardObjectMethodOrAbort(
"getAudioOutputManager",
"()Ldev/cobalt/media/AudioOutputManager;"));
int tunnel_mode_audio_session_id = env->CallIntMethodOrAbort(
j_audio_output_manager.Get(), "generateTunnelModeAudioSessionId",
"(I)I", creation_parameters.audio_stream_info().number_of_channels);
// AudioManager.generateAudioSessionId() return ERROR (-1) to indicate a
// failure, please see the following url for more details:
// https://developer.android.com/reference/android/media/AudioManager#generateAudioSessionId()
SB_LOG_IF(WARNING, tunnel_mode_audio_session_id == -1)
<< "Failed to generate audio session id for tunnel mode.";
return tunnel_mode_audio_session_id;
}
scoped_ptr<AudioRendererSink> TryToCreateTunnelModeAudioRendererSink(
int tunnel_mode_audio_session_id,
const CreationParameters& creation_parameters,
bool enable_audio_device_callback) {
scoped_ptr<AudioRendererSink> audio_sink(new AudioRendererSinkAndroid(
enable_audio_device_callback, true, tunnel_mode_audio_session_id));
// We need to double check if the audio sink can actually be created.
int max_cached_frames, min_frames_per_append;
GetAudioRendererParams(creation_parameters, &max_cached_frames,
&min_frames_per_append);
AudioRendererSinkCallbackStub callback_stub;
std::vector<uint16_t> frame_buffer(
max_cached_frames *
creation_parameters.audio_stream_info().number_of_channels);
uint16_t* frame_buffers[] = {frame_buffer.data()};
audio_sink->Start(
0, creation_parameters.audio_stream_info().number_of_channels,
creation_parameters.audio_stream_info().samples_per_second,
kSbMediaAudioSampleTypeInt16Deprecated,
kSbMediaAudioFrameStorageTypeInterleaved,
reinterpret_cast<SbAudioSinkFrameBuffers>(frame_buffers),
max_cached_frames, &callback_stub);
if (audio_sink->HasStarted() && !callback_stub.error_occurred()) {
audio_sink->Stop();
return audio_sink.Pass();
}
SB_LOG(WARNING)
<< "AudioTrack does not support tunnel mode with sample rate:"
<< creation_parameters.audio_stream_info().samples_per_second
<< ", channels:"
<< creation_parameters.audio_stream_info().number_of_channels
<< ", audio format:" << creation_parameters.audio_codec()
<< ", and audio buffer frames:" << max_cached_frames;
return scoped_ptr<AudioRendererSink>();
}
};
} // namespace shared
} // namespace android
} // namespace starboard
#endif // STARBOARD_ANDROID_SHARED_PLAYER_COMPONENTS_FACTORY_H_