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Commit 78bd91b1 authored by Lajos Molnar's avatar Lajos Molnar
Browse files

stagefright: set pcm-encoding for raw audio tracks 

Bug: 27172163
Change-Id: I4db7ace4e8cbf01939dedefbb1c54730e393530f
parent 28edbba6

cmds/stagefright/SineSource.cpp

+1 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ sp<MetaData> SineSource::getFormat() { 
    meta->setInt32(kKeyChannelCount, mNumChannels);

    meta->setInt32(kKeySampleRate, mSampleRate);

    meta->setInt32(kKeyMaxInputSize, kBufferSize);

    meta->setInt32(kKeyPcmEncoding, kAudioEncodingPcm16bit);



    return meta;

}

include/media/stagefright/MediaDefs.h

+9 −0
Original line number Diff line number Diff line
@@ -68,6 +68,15 @@ extern const char *MEDIA_MIMETYPE_TEXT_CEA_608; 
extern const char *MEDIA_MIMETYPE_TEXT_CEA_708;

extern const char *MEDIA_MIMETYPE_DATA_TIMED_ID3;



// These are values exported to JAVA API that need to be in sync with

// frameworks/base/media/java/android/media/AudioFormat.java. Unfortunately,

// they are not defined in frameworks/av, so defining them here.

enum AudioEncoding {

    kAudioEncodingPcm16bit = 2,

    kAudioEncodingPcm8bit = 3,

    kAudioEncodingPcmFloat = 4,

};



}  // namespace android



#endif  // MEDIA_DEFS_H_

include/media/stagefright/MetaData.h

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ enum { 
    kKeyChannelCount      = '#chn',  // int32_t

    kKeyChannelMask       = 'chnm',  // int32_t

    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)

    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)

    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)

    kKeyBitRate           = 'brte',  // int32_t (bps)

    kKeyESDS              = 'esds',  // raw data

media/libstagefright/ACodec.cpp

+2 −0
Original line number Diff line number Diff line
@@ -4668,6 +4668,7 @@ status_t ACodec::getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify) { 
                    notify->setString("mime", MEDIA_MIMETYPE_AUDIO_RAW);

                    notify->setInt32("channel-count", params.nChannels);

                    notify->setInt32("sample-rate", params.nSamplingRate);

                    notify->setInt32("pcm-encoding", kAudioEncodingPcm16bit);



                    if (mChannelMaskPresent) {

                        notify->setInt32("channel-mask", mChannelMask);
@@ -4850,6 +4851,7 @@ status_t ACodec::getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify) { 
                    notify->setString("mime", mime);

                    notify->setInt32("channel-count", params.nChannels);

                    notify->setInt32("sample-rate", params.nSamplingRate);

                    notify->setInt32("pcm-encoding", kAudioEncodingPcm16bit);

                    break;

                }

media/libstagefright/AudioPlayer.cpp

+13 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <media/AudioTrack.h>

#include <media/openmax/OMX_Audio.h>

#include <media/stagefright/foundation/ADebug.h>

#include <media/stagefright/foundation/ALookup.h>

#include <media/stagefright/foundation/ALooper.h>

#include <media/stagefright/AudioPlayer.h>

#include <media/stagefright/MediaDefs.h>
@@ -71,6 +72,14 @@ void AudioPlayer::setSource(const sp<IMediaSource> &source) { 
    mSource = source;

}



ALookup<audio_format_t, int32_t> sAudioFormatToPcmEncoding {

    {

        { AUDIO_FORMAT_PCM_16_BIT, kAudioEncodingPcm16bit },

        { AUDIO_FORMAT_PCM_8_BIT,  kAudioEncodingPcm8bit  },

        { AUDIO_FORMAT_PCM_FLOAT,  kAudioEncodingPcmFloat },

    }

};



status_t AudioPlayer::start(bool sourceAlreadyStarted) {

    CHECK(!mStarted);

    CHECK(mSource != NULL);
@@ -129,6 +138,10 @@ status_t AudioPlayer::start(bool sourceAlreadyStarted) { 
    }



    audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;

    int32_t pcmEncoding;

    if (format->findInt32(kKeyPcmEncoding, &pcmEncoding)) {

        sAudioFormatToPcmEncoding.map(pcmEncoding, &audioFormat);

    }



    if (useOffload()) {

        if (mapMimeToAudioFormat(audioFormat, mime) != OK) {