APacketSource.cpp revision 39ddf8e0f18766f7ba1e3246b774aa6ebd93eea8
1cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber/* 2cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Copyright (C) 2010 The Android Open Source Project 3cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 4cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * you may not use this file except in compliance with the License. 6cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * You may obtain a copy of the License at 7cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 8cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * 10cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * Unless required by applicable law or agreed to in writing, software 11cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * See the License for the specific language governing permissions and 14cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber * limitations under the License. 15cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber */ 16cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 17cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include "APacketSource.h" 18cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 19cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include "ASessionDescription.h" 20cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 21cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/ABuffer.h> 22cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/ADebug.h> 23cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/AMessage.h> 24cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/AString.h> 25cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/base64.h> 26cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/foundation/hexdump.h> 27cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/MediaBuffer.h> 28cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/MediaDefs.h> 29cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <media/stagefright/MetaData.h> 30cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber#include <utils/Vector.h> 31cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 32cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubernamespace android { 33cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 34cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatic bool GetAttribute(const char *s, const char *key, AString *value) { 35cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber value->clear(); 36cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 37cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t keyLen = strlen(key); 38cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 39cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber for (;;) { 40cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber const char *colonPos = strchr(s, ';'); 41cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 42cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t len = 43cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber (colonPos == NULL) ? strlen(s) : colonPos - s; 44cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 45cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (len >= keyLen + 1 && s[keyLen] == '=' && !strncmp(s, key, keyLen)) { 46cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber value->setTo(&s[keyLen + 1], len - keyLen - 1); 47cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return true; 48cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 49cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 50cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (colonPos == NULL) { 51cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return false; 52cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 53cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 54cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber s = colonPos + 1; 55cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 56cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 57cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 58cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatic sp<ABuffer> decodeHex(const AString &s) { 59cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if ((s.size() % 2) != 0) { 60cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return NULL; 61cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 62cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 63cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t outLen = s.size() / 2; 64cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> buffer = new ABuffer(outLen); 65cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint8_t *out = buffer->data(); 66cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 67cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint8_t accum = 0; 68cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber for (size_t i = 0; i < s.size(); ++i) { 69cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber char c = s.c_str()[i]; 70cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber unsigned value; 71cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (c >= '0' && c <= '9') { 72cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber value = c - '0'; 73cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else if (c >= 'a' && c <= 'f') { 74cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber value = c - 'a' + 10; 75cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else if (c >= 'A' && c <= 'F') { 76cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber value = c - 'A' + 10; 77cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else { 78cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return NULL; 79cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 80cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 81cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber accum = (accum << 4) | value; 82cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 83cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (i & 1) { 84cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = accum; 85cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 86cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber accum = 0; 87cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 88cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 89cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 90cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return buffer; 91cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 92cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 93cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatic sp<ABuffer> MakeAVCCodecSpecificData(const char *params) { 94cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString val; 95cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(GetAttribute(params, "profile-level-id", &val)); 96cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 97cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> profileLevelID = decodeHex(val); 98cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(profileLevelID != NULL); 99cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_EQ(profileLevelID->size(), 3u); 100cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 101cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Vector<sp<ABuffer> > paramSets; 102cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 103cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t numSeqParameterSets = 0; 104cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t totalSeqParameterSetSize = 0; 105cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t numPicParameterSets = 0; 106cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t totalPicParameterSetSize = 0; 107cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 108cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(GetAttribute(params, "sprop-parameter-sets", &val)); 109cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t start = 0; 110cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber for (;;) { 111cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber ssize_t commaPos = val.find(",", start); 112cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t end = (commaPos < 0) ? val.size() : commaPos; 113cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 114cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString nalString(val, start, end - start); 115cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> nal = decodeBase64(nalString); 116cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(nal != NULL); 117cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_GT(nal->size(), 0u); 118cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_LE(nal->size(), 65535u); 119cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 120cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint8_t nalType = nal->data()[0] & 0x1f; 121cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (numSeqParameterSets == 0) { 122cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_EQ((unsigned)nalType, 7u); 123cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else if (numPicParameterSets > 0) { 124cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_EQ((unsigned)nalType, 8u); 125cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 126cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (nalType == 7) { 127cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber ++numSeqParameterSets; 128cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber totalSeqParameterSetSize += nal->size(); 129cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else { 130cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_EQ((unsigned)nalType, 8u); 131cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber ++numPicParameterSets; 132cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber totalPicParameterSetSize += nal->size(); 133cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 134cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 135cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber paramSets.push(nal); 136cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 137cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (commaPos < 0) { 138cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber break; 139cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 140cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 141cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber start = commaPos + 1; 142cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 143cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 144cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_LT(numSeqParameterSets, 32u); 145cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_LE(numPicParameterSets, 255u); 146cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 147cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber size_t csdSize = 148cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 1 + 3 + 1 + 1 149cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber + 2 * numSeqParameterSets + totalSeqParameterSetSize 150cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber + 1 + 2 * numPicParameterSets + totalPicParameterSetSize; 151cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 152cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> csd = new ABuffer(csdSize); 153cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint8_t *out = csd->data(); 154cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 155cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = 0x01; // configurationVersion 156cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber memcpy(out, profileLevelID->data(), 3); 157cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber out += 3; 158cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = (0x3f << 2) | 1; // lengthSize == 2 bytes 159cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = 0xe0 | numSeqParameterSets; 160cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 161cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber for (size_t i = 0; i < numSeqParameterSets; ++i) { 162cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> nal = paramSets.editItemAt(i); 163cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 164cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = nal->size() >> 8; 165cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = nal->size() & 0xff; 166cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 167cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber memcpy(out, nal->data(), nal->size()); 168cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 169cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber out += nal->size(); 170cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 171cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 172cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = numPicParameterSets; 173cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 174cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber for (size_t i = 0; i < numPicParameterSets; ++i) { 175cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> nal = paramSets.editItemAt(i + numSeqParameterSets); 176cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 177cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = nal->size() >> 8; 178cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out++ = nal->size() & 0xff; 179cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 180cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber memcpy(out, nal->data(), nal->size()); 181cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 182cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber out += nal->size(); 183cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 184cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 185cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber hexdump(csd->data(), csd->size()); 186cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 187cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return csd; 188cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 189cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 190cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubersp<ABuffer> MakeAACCodecSpecificData(const char *params) { 191cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString val; 192cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(GetAttribute(params, "config", &val)); 193cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 194cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> config = decodeHex(val); 195cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(config != NULL); 196cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK_GE(config->size(), 4u); 197cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 198cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber const uint8_t *data = config->data(); 199cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint32_t x = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; 200cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber x = (x >> 1) & 0xffff; 201cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 202cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber static const uint8_t kStaticESDS[] = { 203cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x03, 22, 204cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x00, 0x00, // ES_ID 205cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag 206cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 207cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x04, 17, 208cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x40, // Audio ISO/IEC 14496-3 209cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x00, 0x00, 0x00, 0x00, 210cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x00, 0x00, 0x00, 0x00, 211cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x00, 0x00, 0x00, 0x00, 212cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 213cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 0x05, 2, 214cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber // AudioSpecificInfo follows 215cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber }; 216cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 217cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + 2); 218cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber memcpy(csd->data(), kStaticESDS, sizeof(kStaticESDS)); 219cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber csd->data()[sizeof(kStaticESDS)] = (x >> 8) & 0xff; 220cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber csd->data()[sizeof(kStaticESDS) + 1] = x & 0xff; 221cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 222cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber hexdump(csd->data(), csd->size()); 223cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 224cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return csd; 225cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 226cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 227cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas HuberAPacketSource::APacketSource( 228cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber const sp<ASessionDescription> &sessionDesc, size_t index) 22939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber : mInitCheck(NO_INIT), 23039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat(new MetaData), 23139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mEOSResult(OK), 23239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnit(true), 23339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnitNTP(0) { 234cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber unsigned long PT; 235cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString desc; 236cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber AString params; 237cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sessionDesc->getFormatType(index, &PT, &desc, ¶ms); 238cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 239cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int64_t durationUs; 240cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (sessionDesc->getDurationUs(&durationUs)) { 241cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt64(kKeyDuration, durationUs); 242cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else { 243cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt64(kKeyDuration, 60 * 60 * 1000000ll); 244cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 245cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 24639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mInitCheck = OK; 247cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (!strncmp(desc.c_str(), "H264/", 5)) { 248cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC); 249cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 250cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int32_t width, height; 251cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sessionDesc->getDimensions(index, PT, &width, &height); 252cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 253cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt32(kKeyWidth, width); 254cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt32(kKeyHeight, height); 255cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 256cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> codecSpecificData = 257cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber MakeAVCCodecSpecificData(params.c_str()); 258cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 259cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setData( 260cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber kKeyAVCC, 0, 261cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber codecSpecificData->data(), codecSpecificData->size()); 26239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } else if (!strncmp(desc.c_str(), "H263-2000/", 10) 26339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber || !strncmp(desc.c_str(), "H263-1998/", 10)) { 26439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263); 265cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 26639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber int32_t width, height; 26739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber sessionDesc->getDimensions(index, PT, &width, &height); 26839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 26939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeyWidth, width); 27039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeyHeight, height); 27139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } else if (!strncmp(desc.c_str(), "MP4A-LATM/", 10)) { 272cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC); 273cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 274cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int32_t sampleRate, numChannels; 275cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber ASessionDescription::ParseFormatDesc( 276cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber desc.c_str(), &sampleRate, &numChannels); 277cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 278cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt32(kKeySampleRate, sampleRate); 279cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setInt32(kKeyChannelCount, numChannels); 280cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 281cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber sp<ABuffer> codecSpecificData = 282cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber MakeAACCodecSpecificData(params.c_str()); 283cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 284cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mFormat->setData( 285cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber kKeyESDS, 0, 286cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber codecSpecificData->data(), codecSpecificData->size()); 28739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } else if (!strncmp(desc.c_str(), "AMR/", 4)) { 28839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_NB); 28939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 29039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber int32_t sampleRate, numChannels; 29139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber ASessionDescription::ParseFormatDesc( 29239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber desc.c_str(), &sampleRate, &numChannels); 29339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 29439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeySampleRate, sampleRate); 29539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeyChannelCount, numChannels); 29639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 29739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber if (sampleRate != 8000 || numChannels != 1) { 29839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mInitCheck = ERROR_UNSUPPORTED; 29939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } 30039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } else if (!strncmp(desc.c_str(), "AMR-WB/", 7)) { 30139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AMR_WB); 30239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 30339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber int32_t sampleRate, numChannels; 30439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber ASessionDescription::ParseFormatDesc( 30539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber desc.c_str(), &sampleRate, &numChannels); 30639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 30739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeySampleRate, sampleRate); 30839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFormat->setInt32(kKeyChannelCount, numChannels); 30939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 31039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber if (sampleRate != 16000 || numChannels != 1) { 31139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mInitCheck = ERROR_UNSUPPORTED; 31239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } 313cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } else { 31439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mInitCheck = ERROR_UNSUPPORTED; 315cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 316cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 317cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 318cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas HuberAPacketSource::~APacketSource() { 319cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 320cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 32139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huberstatus_t APacketSource::initCheck() const { 32239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber return mInitCheck; 32339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber} 32439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 325cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatus_t APacketSource::start(MetaData *params) { 32639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnit = true; 32739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnitNTP = 0; 32839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 329cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return OK; 330cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 331cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 332cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatus_t APacketSource::stop() { 333cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return OK; 334cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 335cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 336cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubersp<MetaData> APacketSource::getFormat() { 337cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return mFormat; 338cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 339cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 340cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huberstatus_t APacketSource::read( 341cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber MediaBuffer **out, const ReadOptions *) { 342cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out = NULL; 343cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 344cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Mutex::Autolock autoLock(mLock); 345cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber while (mEOSResult == OK && mBuffers.empty()) { 346cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mCondition.wait(mLock); 347cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 348cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 349cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (!mBuffers.empty()) { 350cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber const sp<ABuffer> buffer = *mBuffers.begin(); 351cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 352cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber uint64_t ntpTime; 353cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(buffer->meta()->findInt64( 354cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber "ntp-time", (int64_t *)&ntpTime)); 355cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 35639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber MediaBuffer *mediaBuffer = new MediaBuffer(buffer->size()); 35739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mediaBuffer->meta_data()->setInt64(kKeyNTPTime, ntpTime); 35839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 35939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber if (mFirstAccessUnit) { 36039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnit = false; 36139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber mFirstAccessUnitNTP = ntpTime; 36239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } 36339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber if (ntpTime > mFirstAccessUnitNTP) { 36439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber ntpTime -= mFirstAccessUnitNTP; 36539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } else { 36639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber ntpTime = 0; 36739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } 36839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 369cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int64_t timeUs = (int64_t)(ntpTime * 1E6 / (1ll << 32)); 370cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 371cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs); 37239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 373cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber memcpy(mediaBuffer->data(), buffer->data(), buffer->size()); 374cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber *out = mediaBuffer; 375cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 376cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mBuffers.erase(mBuffers.begin()); 377cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return OK; 378cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 379cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 380cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return mEOSResult; 381cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 382cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 383cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubervoid APacketSource::queueAccessUnit(const sp<ABuffer> &buffer) { 384cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber int32_t damaged; 385cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber if (buffer->meta()->findInt32("damaged", &damaged) && damaged) { 386cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber // LOG(VERBOSE) << "discarding damaged AU"; 387cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber return; 388cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber } 389cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 390cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Mutex::Autolock autoLock(mLock); 391cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mBuffers.push_back(buffer); 392cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mCondition.signal(); 393cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 394cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 395cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Hubervoid APacketSource::signalEOS(status_t result) { 396cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber CHECK(result != OK); 397cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 398cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber Mutex::Autolock autoLock(mLock); 399cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mEOSResult = result; 400cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber mCondition.signal(); 401cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} 402cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber 40339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huberint64_t APacketSource::getQueuedDuration(bool *eos) { 40439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber Mutex::Autolock autoLock(mLock); 40539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 40639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber *eos = (mEOSResult != OK); 40739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 40839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber if (mBuffers.empty()) { 40939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber return 0; 41039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber } 41139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 41239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber sp<ABuffer> buffer = *mBuffers.begin(); 41339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 41439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber uint64_t ntpTime; 41539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber CHECK(buffer->meta()->findInt64( 41639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber "ntp-time", (int64_t *)&ntpTime)); 41739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 41839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber int64_t firstTimeUs = (int64_t)(ntpTime * 1E6 / (1ll << 32)); 41939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 42039ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber buffer = *--mBuffers.end(); 42139ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 42239ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber CHECK(buffer->meta()->findInt64( 42339ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber "ntp-time", (int64_t *)&ntpTime)); 42439ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 42539ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber int64_t lastTimeUs = (int64_t)(ntpTime * 1E6 / (1ll << 32)); 42639ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 42739ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber return lastTimeUs - firstTimeUs; 42839ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber} 42939ddf8e0f18766f7ba1e3246b774aa6ebd93eea8Andreas Huber 430cf7b9c7aae758ac0b99833915053c63c2ac46e09Andreas Huber} // namespace android 431