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-rw-r--r--media/libstagefright/rtsp/APacketSource.cpp579
1 files changed, 0 insertions, 579 deletions
diff --git a/media/libstagefright/rtsp/APacketSource.cpp b/media/libstagefright/rtsp/APacketSource.cpp
deleted file mode 100644
index 6cf1301..0000000
--- a/media/libstagefright/rtsp/APacketSource.cpp
+++ /dev/null
@@ -1,579 +0,0 @@
-/*
- * Copyright (C) 2010 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 "APacketSource"
-#include <utils/Log.h>
-
-#include "APacketSource.h"
-
-#include "ARawAudioAssembler.h"
-#include "ASessionDescription.h"
-
-#include "avc_utils.h"
-
-#include <ctype.h>
-
-#include <media/stagefright/foundation/ABitReader.h>
-#include <media/stagefright/foundation/ABuffer.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/foundation/base64.h>
-#include <media/stagefright/foundation/hexdump.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MetaData.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-static bool GetAttribute(const char *s, const char *key, AString *value) {
- value->clear();
-
- size_t keyLen = strlen(key);
-
- for (;;) {
- while (isspace(*s)) {
- ++s;
- }
-
- const char *colonPos = strchr(s, ';');
-
- size_t len =
- (colonPos == NULL) ? strlen(s) : colonPos - s;
-
- if (len >= keyLen + 1 && s[keyLen] == '=' && !strncmp(s, key, keyLen)) {
- value->setTo(&s[keyLen + 1], len - keyLen - 1);
- return true;
- }
-
- if (colonPos == NULL) {
- return false;
- }
-
- s = colonPos + 1;
- }
-}
-
-static sp<ABuffer> decodeHex(const AString &s) {
- if ((s.size() % 2) != 0) {
- return NULL;
- }
-
- size_t outLen = s.size() / 2;
- sp<ABuffer> buffer = new ABuffer(outLen);
- uint8_t *out = buffer->data();
-
- uint8_t accum = 0;
- for (size_t i = 0; i < s.size(); ++i) {
- char c = s.c_str()[i];
- unsigned value;
- if (c >= '0' && c <= '9') {
- value = c - '0';
- } else if (c >= 'a' && c <= 'f') {
- value = c - 'a' + 10;
- } else if (c >= 'A' && c <= 'F') {
- value = c - 'A' + 10;
- } else {
- return NULL;
- }
-
- accum = (accum << 4) | value;
-
- if (i & 1) {
- *out++ = accum;
-
- accum = 0;
- }
- }
-
- return buffer;
-}
-
-static sp<ABuffer> MakeAVCCodecSpecificData(
- const char *params, int32_t *width, int32_t *height) {
- *width = 0;
- *height = 0;
-
- AString val;
- if (!GetAttribute(params, "profile-level-id", &val)) {
- return NULL;
- }
-
- sp<ABuffer> profileLevelID = decodeHex(val);
- CHECK(profileLevelID != NULL);
- CHECK_EQ(profileLevelID->size(), 3u);
-
- Vector<sp<ABuffer> > paramSets;
-
- size_t numSeqParameterSets = 0;
- size_t totalSeqParameterSetSize = 0;
- size_t numPicParameterSets = 0;
- size_t totalPicParameterSetSize = 0;
-
- if (!GetAttribute(params, "sprop-parameter-sets", &val)) {
- return NULL;
- }
-
- size_t start = 0;
- for (;;) {
- ssize_t commaPos = val.find(",", start);
- size_t end = (commaPos < 0) ? val.size() : commaPos;
-
- AString nalString(val, start, end - start);
- sp<ABuffer> nal = decodeBase64(nalString);
- CHECK(nal != NULL);
- CHECK_GT(nal->size(), 0u);
- CHECK_LE(nal->size(), 65535u);
-
- uint8_t nalType = nal->data()[0] & 0x1f;
- if (numSeqParameterSets == 0) {
- CHECK_EQ((unsigned)nalType, 7u);
- } else if (numPicParameterSets > 0) {
- CHECK_EQ((unsigned)nalType, 8u);
- }
- if (nalType == 7) {
- ++numSeqParameterSets;
- totalSeqParameterSetSize += nal->size();
- } else {
- CHECK_EQ((unsigned)nalType, 8u);
- ++numPicParameterSets;
- totalPicParameterSetSize += nal->size();
- }
-
- paramSets.push(nal);
-
- if (commaPos < 0) {
- break;
- }
-
- start = commaPos + 1;
- }
-
- CHECK_LT(numSeqParameterSets, 32u);
- CHECK_LE(numPicParameterSets, 255u);
-
- size_t csdSize =
- 1 + 3 + 1 + 1
- + 2 * numSeqParameterSets + totalSeqParameterSetSize
- + 1 + 2 * numPicParameterSets + totalPicParameterSetSize;
-
- sp<ABuffer> csd = new ABuffer(csdSize);
- uint8_t *out = csd->data();
-
- *out++ = 0x01; // configurationVersion
- memcpy(out, profileLevelID->data(), 3);
- out += 3;
- *out++ = (0x3f << 2) | 1; // lengthSize == 2 bytes
- *out++ = 0xe0 | numSeqParameterSets;
-
- for (size_t i = 0; i < numSeqParameterSets; ++i) {
- sp<ABuffer> nal = paramSets.editItemAt(i);
-
- *out++ = nal->size() >> 8;
- *out++ = nal->size() & 0xff;
-
- memcpy(out, nal->data(), nal->size());
-
- out += nal->size();
-
- if (i == 0) {
- FindAVCDimensions(nal, width, height);
- ALOGI("dimensions %dx%d", *width, *height);
- }
- }
-
- *out++ = numPicParameterSets;
-
- for (size_t i = 0; i < numPicParameterSets; ++i) {
- sp<ABuffer> nal = paramSets.editItemAt(i + numSeqParameterSets);
-
- *out++ = nal->size() >> 8;
- *out++ = nal->size() & 0xff;
-
- memcpy(out, nal->data(), nal->size());
-
- out += nal->size();
- }
-
- // hexdump(csd->data(), csd->size());
-
- return csd;
-}
-
-sp<ABuffer> MakeAACCodecSpecificData(const char *params) {
- AString val;
- CHECK(GetAttribute(params, "config", &val));
-
- sp<ABuffer> config = decodeHex(val);
- CHECK(config != NULL);
- CHECK_GE(config->size(), 4u);
-
- const uint8_t *data = config->data();
- uint32_t x = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
- x = (x >> 1) & 0xffff;
-
- static const uint8_t kStaticESDS[] = {
- 0x03, 22,
- 0x00, 0x00, // ES_ID
- 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag
-
- 0x04, 17,
- 0x40, // Audio ISO/IEC 14496-3
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
-
- 0x05, 2,
- // AudioSpecificInfo follows
- };
-
- sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + 2);
- memcpy(csd->data(), kStaticESDS, sizeof(kStaticESDS));
- csd->data()[sizeof(kStaticESDS)] = (x >> 8) & 0xff;
- csd->data()[sizeof(kStaticESDS) + 1] = x & 0xff;
-
- // hexdump(csd->data(), csd->size());
-
- return csd;
-}
-
-// From mpeg4-generic configuration data.
-sp<ABuffer> MakeAACCodecSpecificData2(const char *params) {
- AString val;
- unsigned long objectType;
- if (GetAttribute(params, "objectType", &val)) {
- const char *s = val.c_str();
- char *end;
- objectType = strtoul(s, &end, 10);
- CHECK(end > s && *end == '\0');
- } else {
- objectType = 0x40; // Audio ISO/IEC 14496-3
- }
-
- CHECK(GetAttribute(params, "config", &val));
-
- sp<ABuffer> config = decodeHex(val);
- CHECK(config != NULL);
-
- // Make sure size fits into a single byte and doesn't have to
- // be encoded.
- CHECK_LT(20 + config->size(), 128u);
-
- const uint8_t *data = config->data();
-
- static const uint8_t kStaticESDS[] = {
- 0x03, 22,
- 0x00, 0x00, // ES_ID
- 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag
-
- 0x04, 17,
- 0x40, // Audio ISO/IEC 14496-3
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
-
- 0x05, 2,
- // AudioSpecificInfo follows
- };
-
- sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + config->size());
- uint8_t *dst = csd->data();
- *dst++ = 0x03;
- *dst++ = 20 + config->size();
- *dst++ = 0x00; // ES_ID
- *dst++ = 0x00;
- *dst++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
- *dst++ = 0x04;
- *dst++ = 15 + config->size();
- *dst++ = objectType;
- for (int i = 0; i < 12; ++i) { *dst++ = 0x00; }
- *dst++ = 0x05;
- *dst++ = config->size();
- memcpy(dst, config->data(), config->size());
-
- // hexdump(csd->data(), csd->size());
-
- return csd;
-}
-
-static size_t GetSizeWidth(size_t x) {
- size_t n = 1;
- while (x > 127) {
- ++n;
- x >>= 7;
- }
- return n;
-}
-
-static uint8_t *EncodeSize(uint8_t *dst, size_t x) {
- while (x > 127) {
- *dst++ = (x & 0x7f) | 0x80;
- x >>= 7;
- }
- *dst++ = x;
- return dst;
-}
-
-static bool ExtractDimensionsMPEG4Config(
- const sp<ABuffer> &config, int32_t *width, int32_t *height) {
- *width = 0;
- *height = 0;
-
- const uint8_t *ptr = config->data();
- size_t offset = 0;
- bool foundVOL = false;
- while (offset + 3 < config->size()) {
- if (memcmp("\x00\x00\x01", &ptr[offset], 3)
- || (ptr[offset + 3] & 0xf0) != 0x20) {
- ++offset;
- continue;
- }
-
- foundVOL = true;
- break;
- }
-
- if (!foundVOL) {
- return false;
- }
-
- return ExtractDimensionsFromVOLHeader(
- &ptr[offset], config->size() - offset, width, height);
-}
-
-static sp<ABuffer> MakeMPEG4VideoCodecSpecificData(
- const char *params, int32_t *width, int32_t *height) {
- *width = 0;
- *height = 0;
-
- AString val;
- CHECK(GetAttribute(params, "config", &val));
-
- sp<ABuffer> config = decodeHex(val);
- CHECK(config != NULL);
-
- if (!ExtractDimensionsMPEG4Config(config, width, height)) {
- return NULL;
- }
-
- ALOGI("VOL dimensions = %dx%d", *width, *height);
-
- size_t len1 = config->size() + GetSizeWidth(config->size()) + 1;
- size_t len2 = len1 + GetSizeWidth(len1) + 1 + 13;
- size_t len3 = len2 + GetSizeWidth(len2) + 1 + 3;
-
- sp<ABuffer> csd = new ABuffer(len3);
- uint8_t *dst = csd->data();
- *dst++ = 0x03;
- dst = EncodeSize(dst, len2 + 3);
- *dst++ = 0x00; // ES_ID
- *dst++ = 0x00;
- *dst++ = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag
-
- *dst++ = 0x04;
- dst = EncodeSize(dst, len1 + 13);
- *dst++ = 0x01; // Video ISO/IEC 14496-2 Simple Profile
- for (size_t i = 0; i < 12; ++i) {
- *dst++ = 0x00;
- }
-
- *dst++ = 0x05;
- dst = EncodeSize(dst, config->size());
- memcpy(dst, config->data(), config->size());
- dst += config->size();
-
- // hexdump(csd->data(), csd->size());
-
- return csd;
-}
-
-APacketSource::APacketSource(
- const sp<ASessionDescription> &sessionDesc, size_t index)
- : mInitCheck(NO_INIT),
- mFormat(new MetaData) {
- unsigned long PT;
- AString desc;
- AString params;
- sessionDesc->getFormatType(index, &PT, &desc, &params);
-
- int64_t durationUs;
- if (sessionDesc->getDurationUs(&durationUs)) {
- mFormat->setInt64(kKeyDuration, durationUs);
- } else {
- mFormat->setInt64(kKeyDuration, 60 * 60 * 1000000ll);
- }
-
- mInitCheck = OK;
- if (!strncmp(desc.c_str(), "H264/", 5)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
-
- int32_t width, height;
- if (!sessionDesc->getDimensions(index, PT, &width, &height)) {
- width = -1;
- height = -1;
- }
-
- int32_t encWidth, encHeight;
- sp<ABuffer> codecSpecificData =
- MakeAVCCodecSpecificData(params.c_str(), &encWidth, &encHeight);
-
- if (codecSpecificData != NULL) {
- if (width < 0) {
- // If no explicit width/height given in the sdp, use the dimensions
- // extracted from the first sequence parameter set.
- width = encWidth;
- height = encHeight;
- }
-
- mFormat->setData(
- kKeyAVCC, 0,
- codecSpecificData->data(), codecSpecificData->size());
- } else if (width < 0) {
- mInitCheck = ERROR_UNSUPPORTED;
- return;
- }
-
- mFormat->setInt32(kKeyWidth, width);
- mFormat->setInt32(kKeyHeight, height);
- } else if (!strncmp(desc.c_str(), "H263-2000/", 10)
- || !strncmp(desc.c_str(), "H263-1998/", 10)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
-
- int32_t width, height;
- if (!sessionDesc->getDimensions(index, PT, &width, &height)) {
- mInitCheck = ERROR_UNSUPPORTED;
- return;
- }
-
- mFormat->setInt32(kKeyWidth, width);
- mFormat->setInt32(kKeyHeight, height);
- } else if (!strncmp(desc.c_str(), "MP4A-LATM/", 10)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
-
- int32_t sampleRate, numChannels;
- ASessionDescription::ParseFormatDesc(
- desc.c_str(), &sampleRate, &numChannels);
-
- mFormat->setInt32(kKeySampleRate, sampleRate);
- mFormat->setInt32(kKeyChannelCount, numChannels);
-
- sp<ABuffer> codecSpecificData =
- MakeAACCodecSpecificData(params.c_str());
-
- mFormat->setData(
- kKeyESDS, 0,
- codecSpecificData->data(), codecSpecificData->size());
- } else if (!strncmp(desc.c_str(), "AMR/", 4)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_NB);
-
- int32_t sampleRate, numChannels;
- ASessionDescription::ParseFormatDesc(
- desc.c_str(), &sampleRate, &numChannels);
-
- mFormat->setInt32(kKeySampleRate, sampleRate);
- mFormat->setInt32(kKeyChannelCount, numChannels);
-
- if (sampleRate != 8000 || numChannels != 1) {
- mInitCheck = ERROR_UNSUPPORTED;
- }
- } else if (!strncmp(desc.c_str(), "AMR-WB/", 7)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_WB);
-
- int32_t sampleRate, numChannels;
- ASessionDescription::ParseFormatDesc(
- desc.c_str(), &sampleRate, &numChannels);
-
- mFormat->setInt32(kKeySampleRate, sampleRate);
- mFormat->setInt32(kKeyChannelCount, numChannels);
-
- if (sampleRate != 16000 || numChannels != 1) {
- mInitCheck = ERROR_UNSUPPORTED;
- }
- } else if (!strncmp(desc.c_str(), "MP4V-ES/", 8)) {
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
-
- int32_t width, height;
- if (!sessionDesc->getDimensions(index, PT, &width, &height)) {
- width = -1;
- height = -1;
- }
-
- int32_t encWidth, encHeight;
- sp<ABuffer> codecSpecificData =
- MakeMPEG4VideoCodecSpecificData(
- params.c_str(), &encWidth, &encHeight);
-
- if (codecSpecificData != NULL) {
- mFormat->setData(
- kKeyESDS, 0,
- codecSpecificData->data(), codecSpecificData->size());
-
- if (width < 0) {
- width = encWidth;
- height = encHeight;
- }
- } else if (width < 0) {
- mInitCheck = ERROR_UNSUPPORTED;
- return;
- }
-
- mFormat->setInt32(kKeyWidth, width);
- mFormat->setInt32(kKeyHeight, height);
- } else if (!strncasecmp(desc.c_str(), "mpeg4-generic/", 14)) {
- AString val;
- if (!GetAttribute(params.c_str(), "mode", &val)
- || (strcasecmp(val.c_str(), "AAC-lbr")
- && strcasecmp(val.c_str(), "AAC-hbr"))) {
- mInitCheck = ERROR_UNSUPPORTED;
- return;
- }
-
- mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
-
- int32_t sampleRate, numChannels;
- ASessionDescription::ParseFormatDesc(
- desc.c_str(), &sampleRate, &numChannels);
-
- mFormat->setInt32(kKeySampleRate, sampleRate);
- mFormat->setInt32(kKeyChannelCount, numChannels);
-
- sp<ABuffer> codecSpecificData =
- MakeAACCodecSpecificData2(params.c_str());
-
- mFormat->setData(
- kKeyESDS, 0,
- codecSpecificData->data(), codecSpecificData->size());
- } else if (ARawAudioAssembler::Supports(desc.c_str())) {
- ARawAudioAssembler::MakeFormat(desc.c_str(), mFormat);
- } else {
- mInitCheck = ERROR_UNSUPPORTED;
- }
-}
-
-APacketSource::~APacketSource() {
-}
-
-status_t APacketSource::initCheck() const {
- return mInitCheck;
-}
-
-sp<MetaData> APacketSource::getFormat() {
- return mFormat;
-}
-
-} // namespace android
generated by cgit v1.1 at 2024-06-09 17:17:09 +0000