diff options
Diffstat (limited to 'Source/WebKit/android/plugins/ANPSoundInterface.cpp')
| -rw-r--r-- | Source/WebKit/android/plugins/ANPSoundInterface.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/Source/WebKit/android/plugins/ANPSoundInterface.cpp b/Source/WebKit/android/plugins/ANPSoundInterface.cpp new file mode 100644 index 0000000..c238872 --- /dev/null +++ b/Source/WebKit/android/plugins/ANPSoundInterface.cpp @@ -0,0 +1,163 @@ +/* + * Copyright 2008, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +// must include config.h first for webkit to fiddle with new/delete +#include "config.h" +#include "android_npapi.h" + +#include "SkTypes.h" +#include "media/AudioTrack.h" + +#include <system/audio.h> + +struct ANPAudioTrack { + void* mUser; + ANPAudioCallbackProc mProc; + android::AudioTrack* mTrack; +}; + +static ANPSampleFormat toANPFormat(int fm) { + switch (fm) { + case AUDIO_FORMAT_PCM_16_BIT: + return kPCM16Bit_ANPSampleFormat; + case AUDIO_FORMAT_PCM_8_BIT: + return kPCM8Bit_ANPSampleFormat; + default: + return kUnknown_ANPSamleFormat; + } +} + +static int fromANPFormat(ANPSampleFormat fm) { + switch (fm) { + case kPCM16Bit_ANPSampleFormat: + return AUDIO_FORMAT_PCM_16_BIT; + case kPCM8Bit_ANPSampleFormat: + return AUDIO_FORMAT_PCM_8_BIT; + default: + return AUDIO_FORMAT_INVALID; + } +} + +static void callbackProc(int event, void* user, void* info) { + ANPAudioTrack* track = reinterpret_cast<ANPAudioTrack*>(user); + + switch (event) { + case android::AudioTrack::EVENT_MORE_DATA: { + ANPAudioBuffer dst; + android::AudioTrack::Buffer* src; + + src = reinterpret_cast<android::AudioTrack::Buffer*>(info); + dst.bufferData = src->raw; + dst.channelCount = src->channelCount; + dst.format = toANPFormat(src->format); + dst.size = src->size; + track->mProc(kMoreData_ANPAudioEvent, track->mUser, &dst); + // return the updated size field + src->size = dst.size; + break; + } + case android::AudioTrack::EVENT_UNDERRUN: + track->mProc(kUnderRun_ANPAudioEvent, track->mUser, NULL); + break; + default: + SkDebugf("------ unknown audio event for plugin %d\n", event); + break; + } +} + +static ANPAudioTrack* ANPCreateTrack(uint32_t sampleRate, + ANPSampleFormat format, + int channelCount, + ANPAudioCallbackProc proc, + void* user) { + + ANPAudioTrack* track = new ANPAudioTrack; + + track->mUser = user; + track->mProc = proc; + track->mTrack = new android::AudioTrack(AUDIO_STREAM_MUSIC, + sampleRate, + fromANPFormat(format), + (channelCount > 1) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO, + 0, // frameCount + 0, // flags + callbackProc, + track, + 0); + + if (track->mTrack->initCheck() != 0) { // failure + delete track->mTrack; + delete track; + track = NULL; + } + return track; +} + +static void ANPDeleteTrack(ANPAudioTrack* track) { + if (track) { + delete track->mTrack; + delete track; + } +} + +static void ANPTrackStart(ANPAudioTrack* track) { + track->mTrack->start(); +} + +static void ANPTrackPause(ANPAudioTrack* track) { + track->mTrack->pause(); +} + +static void ANPTrackStop(ANPAudioTrack* track) { + track->mTrack->stop(); +} + +static bool ANPTrackIsStopped(ANPAudioTrack* track) { + return track->mTrack->stopped(); +} + +static uint32_t ANPTrackLatency(ANPAudioTrack* track) { + return track->mTrack->latency(); +} + +/////////////////////////////////////////////////////////////////////////////// + +void ANPAudioTrackInterfaceV0_Init(ANPInterface* value) { + ANPAudioTrackInterfaceV0* si = reinterpret_cast<ANPAudioTrackInterfaceV0*>(value); + si->newTrack = ANPCreateTrack; + si->deleteTrack = ANPDeleteTrack; + si->start = ANPTrackStart; + si->pause = ANPTrackPause; + si->stop = ANPTrackStop; + si->isStopped = ANPTrackIsStopped; +} + +void ANPAudioTrackInterfaceV1_Init(ANPInterface* value) { + // initialize the functions from the previous interface + ANPAudioTrackInterfaceV0_Init(value); + // add any new functions or override existing functions + ANPAudioTrackInterfaceV1* si = reinterpret_cast<ANPAudioTrackInterfaceV1*>(value); + si->trackLatency = ANPTrackLatency; +} |