Add GSM 6.10 decoder
Supports Microsoft frame packing only, since that's what the sample
file used.
b/6620569
Change-Id: Ia89d95bcbf0f8dcbaad42148a7401728f60e079d
diff --git a/include/media/stagefright/MediaDefs.h b/include/media/stagefright/MediaDefs.h
index 457d5d7..81de6e4 100644
--- a/include/media/stagefright/MediaDefs.h
+++ b/include/media/stagefright/MediaDefs.h
@@ -42,6 +42,7 @@
extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
extern const char *MEDIA_MIMETYPE_AUDIO_FLAC;
extern const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS;
+extern const char *MEDIA_MIMETYPE_AUDIO_MSGSM;
extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
extern const char *MEDIA_MIMETYPE_CONTAINER_WAV;
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index 84b4962..a135222 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -803,6 +803,8 @@
"audio_decoder.raw", "audio_encoder.raw" },
{ MEDIA_MIMETYPE_AUDIO_FLAC,
"audio_decoder.flac", "audio_encoder.flac" },
+ { MEDIA_MIMETYPE_AUDIO_MSGSM,
+ "audio_decoder.gsm", "audio_encoder.gsm" },
};
static const size_t kNumMimeToRole =
diff --git a/media/libstagefright/MediaDefs.cpp b/media/libstagefright/MediaDefs.cpp
index e7b5903..5d8029c 100644
--- a/media/libstagefright/MediaDefs.cpp
+++ b/media/libstagefright/MediaDefs.cpp
@@ -40,6 +40,7 @@
const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
const char *MEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS = "audio/aac-adts";
+const char *MEDIA_MIMETYPE_AUDIO_MSGSM = "audio/gsm";
const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mp4";
const char *MEDIA_MIMETYPE_CONTAINER_WAV = "audio/x-wav";
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 70de174..22aefcc 100644
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -1390,6 +1390,8 @@
"audio_decoder.raw", "audio_encoder.raw" },
{ MEDIA_MIMETYPE_AUDIO_FLAC,
"audio_decoder.flac", "audio_encoder.flac" },
+ { MEDIA_MIMETYPE_AUDIO_MSGSM,
+ "audio_decoder.gsm", "audio_encoder.gsm" },
};
static const size_t kNumMimeToRole =
diff --git a/media/libstagefright/WAVExtractor.cpp b/media/libstagefright/WAVExtractor.cpp
index a38400b..d32f4fb 100644
--- a/media/libstagefright/WAVExtractor.cpp
+++ b/media/libstagefright/WAVExtractor.cpp
@@ -38,6 +38,7 @@
WAVE_FORMAT_PCM = 0x0001,
WAVE_FORMAT_ALAW = 0x0006,
WAVE_FORMAT_MULAW = 0x0007,
+ WAVE_FORMAT_MSGSM = 0x0031,
WAVE_FORMAT_EXTENSIBLE = 0xFFFE
};
@@ -178,6 +179,7 @@
if (mWaveFormat != WAVE_FORMAT_PCM
&& mWaveFormat != WAVE_FORMAT_ALAW
&& mWaveFormat != WAVE_FORMAT_MULAW
+ && mWaveFormat != WAVE_FORMAT_MSGSM
&& mWaveFormat != WAVE_FORMAT_EXTENSIBLE) {
return ERROR_UNSUPPORTED;
}
@@ -216,6 +218,10 @@
&& mBitsPerSample != 24) {
return ERROR_UNSUPPORTED;
}
+ } else if (mWaveFormat == WAVE_FORMAT_MSGSM) {
+ if (mBitsPerSample != 0) {
+ return ERROR_UNSUPPORTED;
+ }
} else {
CHECK(mWaveFormat == WAVE_FORMAT_MULAW
|| mWaveFormat == WAVE_FORMAT_ALAW);
@@ -283,6 +289,10 @@
mTrackMeta->setCString(
kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_G711_ALAW);
break;
+ case WAVE_FORMAT_MSGSM:
+ mTrackMeta->setCString(
+ kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MSGSM);
+ break;
default:
CHECK_EQ(mWaveFormat, (uint16_t)WAVE_FORMAT_MULAW);
mTrackMeta->setCString(
@@ -294,11 +304,17 @@
mTrackMeta->setInt32(kKeyChannelMask, mChannelMask);
mTrackMeta->setInt32(kKeySampleRate, mSampleRate);
- size_t bytesPerSample = mBitsPerSample >> 3;
-
- int64_t durationUs =
- 1000000LL * (mDataSize / (mNumChannels * bytesPerSample))
- / mSampleRate;
+ int64_t durationUs = 0;
+ if (mWaveFormat == WAVE_FORMAT_MSGSM) {
+ // 65 bytes decode to 320 8kHz samples
+ durationUs =
+ 1000000LL * (mDataSize / 65 * 320) / 8000;
+ } else {
+ size_t bytesPerSample = mBitsPerSample >> 3;
+ durationUs =
+ 1000000LL * (mDataSize / (mNumChannels * bytesPerSample))
+ / mSampleRate;
+ }
mTrackMeta->setInt64(kKeyDuration, durationUs);
@@ -388,7 +404,16 @@
int64_t seekTimeUs;
ReadOptions::SeekMode mode;
if (options != NULL && options->getSeekTo(&seekTimeUs, &mode)) {
- int64_t pos = (seekTimeUs * mSampleRate) / 1000000 * mNumChannels * (mBitsPerSample >> 3);
+ int64_t pos = 0;
+
+ if (mWaveFormat == WAVE_FORMAT_MSGSM) {
+ // 65 bytes decode to 320 8kHz samples
+ int64_t samplenumber = (seekTimeUs * mSampleRate) / 1000000;
+ int64_t framenumber = samplenumber / 320;
+ pos = framenumber * 65;
+ } else {
+ pos = (seekTimeUs * mSampleRate) / 1000000 * mNumChannels * (mBitsPerSample >> 3);
+ }
if (pos > mSize) {
pos = mSize;
}
@@ -412,6 +437,15 @@
maxBytesToRead = maxBytesAvailable;
}
+ if (mWaveFormat == WAVE_FORMAT_MSGSM) {
+ // Microsoft packs 2 frames into 65 bytes, rather than using separate 33-byte frames,
+ // so read multiples of 65, and use smaller buffers to account for ~10:1 expansion ratio
+ if (maxBytesToRead > 1024) {
+ maxBytesToRead = 1024;
+ }
+ maxBytesToRead = (maxBytesToRead / 65) * 65;
+ }
+
ssize_t n = mDataSource->readAt(
mCurrentPos, buffer->data(),
maxBytesToRead);
@@ -468,12 +502,17 @@
}
}
- size_t bytesPerSample = mBitsPerSample >> 3;
+ int64_t timeStampUs = 0;
- buffer->meta_data()->setInt64(
- kKeyTime,
- 1000000LL * (mCurrentPos - mOffset)
- / (mNumChannels * bytesPerSample) / mSampleRate);
+ if (mWaveFormat == WAVE_FORMAT_MSGSM) {
+ timeStampUs = 1000000LL * (mCurrentPos - mOffset) * 320 / 65 / mSampleRate;
+ } else {
+ size_t bytesPerSample = mBitsPerSample >> 3;
+ timeStampUs = 1000000LL * (mCurrentPos - mOffset)
+ / (mNumChannels * bytesPerSample) / mSampleRate;
+ }
+
+ buffer->meta_data()->setInt64(kKeyTime, timeStampUs);
buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
mCurrentPos += n;
diff --git a/media/libstagefright/codecs/gsm/Android.mk b/media/libstagefright/codecs/gsm/Android.mk
new file mode 100644
index 0000000..2e43120
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/codecs/gsm/dec/Android.mk b/media/libstagefright/codecs/gsm/dec/Android.mk
new file mode 100644
index 0000000..9c0c6ae
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/dec/Android.mk
@@ -0,0 +1,21 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ SoftGSM.cpp
+
+LOCAL_C_INCLUDES := \
+ frameworks/av/media/libstagefright/include \
+ frameworks/native/include/media/openmax \
+ external/libgsm/inc
+
+LOCAL_SHARED_LIBRARIES := \
+ libstagefright libstagefright_omx libstagefright_foundation libutils
+
+LOCAL_STATIC_LIBRARIES := \
+ libgsm
+
+LOCAL_MODULE := libstagefright_soft_gsmdec
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/gsm/dec/MODULE_LICENSE_APACHE2 b/media/libstagefright/codecs/gsm/dec/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/dec/MODULE_LICENSE_APACHE2
diff --git a/media/libstagefright/codecs/gsm/dec/NOTICE b/media/libstagefright/codecs/gsm/dec/NOTICE
new file mode 100644
index 0000000..c5b1efa
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/dec/NOTICE
@@ -0,0 +1,190 @@
+
+ Copyright (c) 2005-2008, The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
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+ Unless required by applicable law or agreed to in writing, software
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diff --git a/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp b/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp
new file mode 100644
index 0000000..00e0c85
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp
@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "SoftGSM"
+#include <utils/Log.h>
+
+#include "SoftGSM.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaDefs.h>
+
+namespace android {
+
+template<class T>
+static void InitOMXParams(T *params) {
+ params->nSize = sizeof(T);
+ params->nVersion.s.nVersionMajor = 1;
+ params->nVersion.s.nVersionMinor = 0;
+ params->nVersion.s.nRevision = 0;
+ params->nVersion.s.nStep = 0;
+}
+
+SoftGSM::SoftGSM(
+ const char *name,
+ const OMX_CALLBACKTYPE *callbacks,
+ OMX_PTR appData,
+ OMX_COMPONENTTYPE **component)
+ : SimpleSoftOMXComponent(name, callbacks, appData, component),
+ mSignalledError(false) {
+
+ CHECK(!strcmp(name, "OMX.google.gsm.decoder"));
+
+ mGsm = gsm_create();
+ CHECK(mGsm);
+ int msopt = 1;
+ gsm_option(mGsm, GSM_OPT_WAV49, &msopt);
+
+ initPorts();
+}
+
+SoftGSM::~SoftGSM() {
+ gsm_destroy(mGsm);
+}
+
+void SoftGSM::initPorts() {
+ OMX_PARAM_PORTDEFINITIONTYPE def;
+ InitOMXParams(&def);
+
+ def.nPortIndex = 0;
+ def.eDir = OMX_DirInput;
+ def.nBufferCountMin = kNumBuffers;
+ def.nBufferCountActual = def.nBufferCountMin;
+ def.nBufferSize = sizeof(gsm_frame);
+ def.bEnabled = OMX_TRUE;
+ def.bPopulated = OMX_FALSE;
+ def.eDomain = OMX_PortDomainAudio;
+ def.bBuffersContiguous = OMX_FALSE;
+ def.nBufferAlignment = 1;
+
+ def.format.audio.cMIMEType =
+ const_cast<char *>(MEDIA_MIMETYPE_AUDIO_MSGSM);
+
+ def.format.audio.pNativeRender = NULL;
+ def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+ def.format.audio.eEncoding = OMX_AUDIO_CodingGSMFR;
+
+ addPort(def);
+
+ def.nPortIndex = 1;
+ def.eDir = OMX_DirOutput;
+ def.nBufferCountMin = kNumBuffers;
+ def.nBufferCountActual = def.nBufferCountMin;
+ def.nBufferSize = kMaxNumSamplesPerFrame * sizeof(int16_t);
+ def.bEnabled = OMX_TRUE;
+ def.bPopulated = OMX_FALSE;
+ def.eDomain = OMX_PortDomainAudio;
+ def.bBuffersContiguous = OMX_FALSE;
+ def.nBufferAlignment = 2;
+
+ def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
+ def.format.audio.pNativeRender = NULL;
+ def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+ def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
+
+ addPort(def);
+}
+
+OMX_ERRORTYPE SoftGSM::internalGetParameter(
+ OMX_INDEXTYPE index, OMX_PTR params) {
+ switch (index) {
+ case OMX_IndexParamAudioPcm:
+ {
+ OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+ (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+ if (pcmParams->nPortIndex > 1) {
+ return OMX_ErrorUndefined;
+ }
+
+ pcmParams->eNumData = OMX_NumericalDataSigned;
+ pcmParams->eEndian = OMX_EndianBig;
+ pcmParams->bInterleaved = OMX_TRUE;
+ pcmParams->nBitPerSample = 16;
+ pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
+ pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelLF;
+ pcmParams->eChannelMapping[1] = OMX_AUDIO_ChannelRF;
+
+ pcmParams->nChannels = 1;
+ pcmParams->nSamplingRate = 8000;
+
+ return OMX_ErrorNone;
+ }
+
+ default:
+ return SimpleSoftOMXComponent::internalGetParameter(index, params);
+ }
+}
+
+OMX_ERRORTYPE SoftGSM::internalSetParameter(
+ OMX_INDEXTYPE index, const OMX_PTR params) {
+ switch (index) {
+ case OMX_IndexParamAudioPcm:
+ {
+ OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+ (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+ if (pcmParams->nPortIndex != 0 && pcmParams->nPortIndex != 1) {
+ return OMX_ErrorUndefined;
+ }
+
+ if (pcmParams->nChannels != 1) {
+ return OMX_ErrorUndefined;
+ }
+
+ if (pcmParams->nSamplingRate != 8000) {
+ return OMX_ErrorUndefined;
+ }
+
+ return OMX_ErrorNone;
+ }
+
+ case OMX_IndexParamStandardComponentRole:
+ {
+ const OMX_PARAM_COMPONENTROLETYPE *roleParams =
+ (const OMX_PARAM_COMPONENTROLETYPE *)params;
+
+ if (strncmp((const char *)roleParams->cRole,
+ "audio_decoder.gsm",
+ OMX_MAX_STRINGNAME_SIZE - 1)) {
+ return OMX_ErrorUndefined;
+ }
+
+ return OMX_ErrorNone;
+ }
+
+ default:
+ return SimpleSoftOMXComponent::internalSetParameter(index, params);
+ }
+}
+
+void SoftGSM::onQueueFilled(OMX_U32 portIndex) {
+ if (mSignalledError) {
+ return;
+ }
+
+ List<BufferInfo *> &inQueue = getPortQueue(0);
+ List<BufferInfo *> &outQueue = getPortQueue(1);
+
+ while (!inQueue.empty() && !outQueue.empty()) {
+ BufferInfo *inInfo = *inQueue.begin();
+ OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
+
+ BufferInfo *outInfo = *outQueue.begin();
+ OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
+
+ if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+ inQueue.erase(inQueue.begin());
+ inInfo->mOwnedByUs = false;
+ notifyEmptyBufferDone(inHeader);
+
+ outHeader->nFilledLen = 0;
+ outHeader->nFlags = OMX_BUFFERFLAG_EOS;
+
+ outQueue.erase(outQueue.begin());
+ outInfo->mOwnedByUs = false;
+ notifyFillBufferDone(outHeader);
+ return;
+ }
+
+ if (inHeader->nFilledLen > kMaxNumSamplesPerFrame) {
+ ALOGE("input buffer too large (%ld).", inHeader->nFilledLen);
+ notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
+ mSignalledError = true;
+ }
+
+ if(((inHeader->nFilledLen / 65) * 65) != inHeader->nFilledLen) {
+ ALOGE("input buffer not multiple of 65 (%ld).", inHeader->nFilledLen);
+ notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
+ mSignalledError = true;
+ }
+
+ uint8_t *inputptr = inHeader->pBuffer + inHeader->nOffset;
+
+ int n = mSignalledError ? 0 : DecodeGSM(mGsm,
+ reinterpret_cast<int16_t *>(outHeader->pBuffer), inputptr, inHeader->nFilledLen);
+
+ outHeader->nTimeStamp = inHeader->nTimeStamp;
+ outHeader->nOffset = 0;
+ outHeader->nFilledLen = n * sizeof(int16_t);
+ outHeader->nFlags = 0;
+
+ inInfo->mOwnedByUs = false;
+ inQueue.erase(inQueue.begin());
+ inInfo = NULL;
+ notifyEmptyBufferDone(inHeader);
+ inHeader = NULL;
+
+ outInfo->mOwnedByUs = false;
+ outQueue.erase(outQueue.begin());
+ outInfo = NULL;
+ notifyFillBufferDone(outHeader);
+ outHeader = NULL;
+ }
+}
+
+
+// static
+int SoftGSM::DecodeGSM(gsm handle,
+ int16_t *out, uint8_t *in, size_t inSize) {
+
+ int ret = 0;
+ while (inSize > 0) {
+ gsm_decode(handle, in, out);
+ in += 33;
+ inSize -= 33;
+ out += 160;
+ ret += 160;
+ gsm_decode(handle, in, out);
+ in += 32;
+ inSize -= 32;
+ out += 160;
+ ret += 160;
+ }
+ return ret;
+}
+
+
+} // namespace android
+
+android::SoftOMXComponent *createSoftOMXComponent(
+ const char *name, const OMX_CALLBACKTYPE *callbacks,
+ OMX_PTR appData, OMX_COMPONENTTYPE **component) {
+ return new android::SoftGSM(name, callbacks, appData, component);
+}
+
diff --git a/media/libstagefright/codecs/gsm/dec/SoftGSM.h b/media/libstagefright/codecs/gsm/dec/SoftGSM.h
new file mode 100644
index 0000000..8ab6116
--- /dev/null
+++ b/media/libstagefright/codecs/gsm/dec/SoftGSM.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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 SOFT_GSM_H_
+
+#define SOFT_GSM_H_
+
+#include "SimpleSoftOMXComponent.h"
+
+extern "C" {
+#include "gsm.h"
+}
+
+namespace android {
+
+struct SoftGSM : public SimpleSoftOMXComponent {
+ SoftGSM(const char *name,
+ const OMX_CALLBACKTYPE *callbacks,
+ OMX_PTR appData,
+ OMX_COMPONENTTYPE **component);
+
+protected:
+ virtual ~SoftGSM();
+
+ virtual OMX_ERRORTYPE internalGetParameter(
+ OMX_INDEXTYPE index, OMX_PTR params);
+
+ virtual OMX_ERRORTYPE internalSetParameter(
+ OMX_INDEXTYPE index, const OMX_PTR params);
+
+ virtual void onQueueFilled(OMX_U32 portIndex);
+
+private:
+ enum {
+ kNumBuffers = 4,
+ kMaxNumSamplesPerFrame = 16384,
+ };
+
+ bool mSignalledError;
+ gsm mGsm;
+
+ void initPorts();
+
+ static int DecodeGSM(gsm handle, int16_t *out, uint8_t *in, size_t inSize);
+
+ DISALLOW_EVIL_CONSTRUCTORS(SoftGSM);
+};
+
+} // namespace android
+
+#endif // SOFT_GSM_H_
+
diff --git a/media/libstagefright/omx/SoftOMXPlugin.cpp b/media/libstagefright/omx/SoftOMXPlugin.cpp
index 3747b3b..6e1c04d 100644
--- a/media/libstagefright/omx/SoftOMXPlugin.cpp
+++ b/media/libstagefright/omx/SoftOMXPlugin.cpp
@@ -53,6 +53,7 @@
{ "OMX.google.vpx.decoder", "vpxdec", "video_decoder.vpx" },
{ "OMX.google.raw.decoder", "rawdec", "audio_decoder.raw" },
{ "OMX.google.flac.encoder", "flacenc", "audio_encoder.flac" },
+ { "OMX.google.gsm.decoder", "gsmdec", "audio_decoder.gsm" },
};
static const size_t kNumComponents =