diff options
-rw-r--r-- | media/java/android/media/MediaRecorder.java | 5 | ||||
-rw-r--r-- | media/libmediaplayerservice/StagefrightRecorder.cpp | 103 | ||||
-rw-r--r-- | media/libmediaplayerservice/StagefrightRecorder.h | 4 |
3 files changed, 92 insertions, 20 deletions
diff --git a/media/java/android/media/MediaRecorder.java b/media/java/android/media/MediaRecorder.java index db308c7..11900d4 100644 --- a/media/java/android/media/MediaRecorder.java +++ b/media/java/android/media/MediaRecorder.java @@ -453,8 +453,9 @@ public class MediaRecorder * the specified audio sampling rate is applicable. The sampling rate really depends * on the format for the audio recording, as well as the capabilities of the platform. * For instance, the sampling rate supported by AAC audio coding standard ranges - * from 8 to 96 kHz. Please consult with the related audio coding standard for the - * supported audio sampling rate. + * from 8 to 96 kHz, the sampling rate supported by AMRNB is 8kHz, and the sampling + * rate supported by AMRWB is 16kHz. Please consult with the related audio coding + * standard for the supported audio sampling rate. * * @param samplingRate the sampling rate for audio in samples per second. */ diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp index d372ee6..992abd7 100644 --- a/media/libmediaplayerservice/StagefrightRecorder.cpp +++ b/media/libmediaplayerservice/StagefrightRecorder.cpp @@ -846,27 +846,12 @@ status_t StagefrightRecorder::startAMRRecording() { mAudioEncoder); return BAD_VALUE; } - if (mSampleRate != 8000) { - LOGE("Invalid sampling rate %d used for AMRNB recording", - mSampleRate); - return BAD_VALUE; - } } else { // mOutputFormat must be OUTPUT_FORMAT_AMR_WB if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) { LOGE("Invlaid encoder %d used for AMRWB recording", mAudioEncoder); return BAD_VALUE; } - if (mSampleRate != 16000) { - LOGE("Invalid sample rate %d used for AMRWB recording", - mSampleRate); - return BAD_VALUE; - } - } - if (mAudioChannels != 1) { - LOGE("Invalid number of audio channels %d used for amr recording", - mAudioChannels); - return BAD_VALUE; } if (mAudioSource >= AUDIO_SOURCE_LIST_END) { @@ -874,8 +859,12 @@ status_t StagefrightRecorder::startAMRRecording() { return BAD_VALUE; } - sp<MediaSource> audioEncoder = createAudioSource(); + status_t status = BAD_VALUE; + if (OK != (status = checkAudioEncoderCapabilities())) { + return status; + } + sp<MediaSource> audioEncoder = createAudioSource(); if (audioEncoder == NULL) { return UNKNOWN_ERROR; } @@ -1050,6 +1039,79 @@ status_t StagefrightRecorder::checkVideoEncoderCapabilities() { return OK; } +status_t StagefrightRecorder::checkAudioEncoderCapabilities() { + clipAudioBitRate(); + clipAudioSampleRate(); + clipNumberOfAudioChannels(); + return OK; +} + +void StagefrightRecorder::clipAudioBitRate() { + LOGV("clipAudioBitRate: encoder %d", mAudioEncoder); + + int minAudioBitRate = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.bps.min", mAudioEncoder); + if (mAudioBitRate < minAudioBitRate) { + LOGW("Intended audio encoding bit rate (%d) is too small" + " and will be set to (%d)", mAudioBitRate, minAudioBitRate); + mAudioBitRate = minAudioBitRate; + } + + int maxAudioBitRate = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.bps.max", mAudioEncoder); + if (mAudioBitRate > maxAudioBitRate) { + LOGW("Intended audio encoding bit rate (%d) is too large" + " and will be set to (%d)", mAudioBitRate, maxAudioBitRate); + mAudioBitRate = maxAudioBitRate; + } +} + +void StagefrightRecorder::clipAudioSampleRate() { + LOGV("clipAudioSampleRate: encoder %d", mAudioEncoder); + + int minSampleRate = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.hz.min", mAudioEncoder); + if (mSampleRate < minSampleRate) { + LOGW("Intended audio sample rate (%d) is too small" + " and will be set to (%d)", mSampleRate, minSampleRate); + mSampleRate = minSampleRate; + } + + int maxSampleRate = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.hz.max", mAudioEncoder); + if (mSampleRate > maxSampleRate) { + LOGW("Intended audio sample rate (%d) is too large" + " and will be set to (%d)", mSampleRate, maxSampleRate); + mSampleRate = maxSampleRate; + } +} + +void StagefrightRecorder::clipNumberOfAudioChannels() { + LOGV("clipNumberOfAudioChannels: encoder %d", mAudioEncoder); + + int minChannels = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.ch.min", mAudioEncoder); + if (mAudioChannels < minChannels) { + LOGW("Intended number of audio channels (%d) is too small" + " and will be set to (%d)", mAudioChannels, minChannels); + mAudioChannels = minChannels; + } + + int maxChannels = + mEncoderProfiles->getAudioEncoderParamByName( + "enc.aud.ch.max", mAudioEncoder); + if (mAudioChannels > maxChannels) { + LOGW("Intended number of audio channels (%d) is too large" + " and will be set to (%d)", mAudioChannels, maxChannels); + mAudioChannels = maxChannels; + } +} + void StagefrightRecorder::clipVideoFrameHeight() { LOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder); int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName( @@ -1206,18 +1268,23 @@ status_t StagefrightRecorder::setupVideoEncoder( } status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) { - sp<MediaSource> audioEncoder; + status_t status = BAD_VALUE; + if (OK != (status = checkAudioEncoderCapabilities())) { + return status; + } + switch(mAudioEncoder) { case AUDIO_ENCODER_AMR_NB: case AUDIO_ENCODER_AMR_WB: case AUDIO_ENCODER_AAC: - audioEncoder = createAudioSource(); break; + default: LOGE("Unsupported audio encoder: %d", mAudioEncoder); return UNKNOWN_ERROR; } + sp<MediaSource> audioEncoder = createAudioSource(); if (audioEncoder == NULL) { return UNKNOWN_ERROR; } diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h index 36a15a8..72225db 100644 --- a/media/libmediaplayerservice/StagefrightRecorder.h +++ b/media/libmediaplayerservice/StagefrightRecorder.h @@ -123,6 +123,7 @@ private: status_t startMPEG2TSRecording(); sp<MediaSource> createAudioSource(); status_t checkVideoEncoderCapabilities(); + status_t checkAudioEncoderCapabilities(); status_t setupCameraSource(sp<CameraSource> *cameraSource); status_t setupAudioEncoder(const sp<MediaWriter>& writer); status_t setupVideoEncoder( @@ -158,6 +159,9 @@ private: void clipVideoFrameRate(); void clipVideoFrameWidth(); void clipVideoFrameHeight(); + void clipAudioBitRate(); + void clipAudioSampleRate(); + void clipNumberOfAudioChannels(); StagefrightRecorder(const StagefrightRecorder &); StagefrightRecorder &operator=(const StagefrightRecorder &); |