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-rw-r--r--media/libstagefright/httplive/LiveSession.cpp303
1 files changed, 138 insertions, 165 deletions
diff --git a/media/libstagefright/httplive/LiveSession.cpp b/media/libstagefright/httplive/LiveSession.cpp
index fc1353a..95779c4 100644
--- a/media/libstagefright/httplive/LiveSession.cpp
+++ b/media/libstagefright/httplive/LiveSession.cpp
@@ -27,6 +27,8 @@
#include "mpeg2ts/AnotherPacketSource.h"
#include <cutils/properties.h>
+#include <media/IMediaHTTPConnection.h>
+#include <media/IMediaHTTPService.h>
#include <media/stagefright/foundation/hexdump.h>
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
@@ -34,6 +36,7 @@
#include <media/stagefright/DataSource.h>
#include <media/stagefright/FileSource.h>
#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaHTTP.h>
#include <media/stagefright/MetaData.h>
#include <media/stagefright/Utils.h>
@@ -44,17 +47,13 @@
namespace android {
LiveSession::LiveSession(
- const sp<AMessage> &notify, uint32_t flags, bool uidValid, uid_t uid)
+ const sp<AMessage> &notify, uint32_t flags,
+ const sp<IMediaHTTPService> &httpService)
: mNotify(notify),
mFlags(flags),
- mUIDValid(uidValid),
- mUID(uid),
+ mHTTPService(httpService),
mInPreparationPhase(true),
- mHTTPDataSource(
- HTTPBase::Create(
- (mFlags & kFlagIncognito)
- ? HTTPBase::kFlagIncognito
- : 0)),
+ mHTTPDataSource(new MediaHTTP(mHTTPService->makeHTTPConnection())),
mPrevBandwidthIndex(-1),
mStreamMask(0),
mCheckBandwidthGeneration(0),
@@ -62,18 +61,14 @@ LiveSession::LiveSession(
mRealTimeBaseUs(0ll),
mReconfigurationInProgress(false),
mDisconnectReplyID(0) {
- if (mUIDValid) {
- mHTTPDataSource->setUID(mUID);
- }
-
- mPacketSources.add(
- STREAMTYPE_AUDIO, new AnotherPacketSource(NULL /* meta */));
- mPacketSources.add(
- STREAMTYPE_VIDEO, new AnotherPacketSource(NULL /* meta */));
+ mStreams[kAudioIndex] = StreamItem("audio");
+ mStreams[kVideoIndex] = StreamItem("video");
+ mStreams[kSubtitleIndex] = StreamItem("subtitle");
- mPacketSources.add(
- STREAMTYPE_SUBTITLES, new AnotherPacketSource(NULL /* meta */));
+ for (size_t i = 0; i < kMaxStreams; ++i) {
+ mPacketSources.add(indexToType(i), new AnotherPacketSource(NULL /* meta */));
+ }
}
LiveSession::~LiveSession() {
@@ -374,6 +369,12 @@ int LiveSession::SortByBandwidth(const BandwidthItem *a, const BandwidthItem *b)
return 1;
}
+// static
+LiveSession::StreamType LiveSession::indexToType(int idx) {
+ CHECK(idx >= 0 && idx < kMaxStreams);
+ return (StreamType)(1 << idx);
+}
+
void LiveSession::onConnect(const sp<AMessage> &msg) {
AString url;
CHECK(msg->findString("url", &url));
@@ -512,54 +513,81 @@ sp<PlaylistFetcher> LiveSession::addFetcher(const char *uri) {
return info.mFetcher;
}
+/*
+ * Illustration of parameters:
+ *
+ * 0 `range_offset`
+ * +------------+-------------------------------------------------------+--+--+
+ * | | | next block to fetch | | |
+ * | | `source` handle => `out` buffer | | | |
+ * | `url` file |<--------- buffer size --------->|<--- `block_size` -->| | |
+ * | |<----------- `range_length` / buffer capacity ----------->| |
+ * |<------------------------------ file_size ------------------------------->|
+ *
+ * Special parameter values:
+ * - range_length == -1 means entire file
+ * - block_size == 0 means entire range
+ *
+ */
status_t LiveSession::fetchFile(
const char *url, sp<ABuffer> *out,
int64_t range_offset, int64_t range_length,
+ uint32_t block_size, /* download block size */
+ sp<DataSource> *source, /* to return and reuse source */
String8 *actualUrl) {
- *out = NULL;
+ off64_t size;
+ sp<DataSource> temp_source;
+ if (source == NULL) {
+ source = &temp_source;
+ }
- sp<DataSource> source;
+ if (*source == NULL) {
+ if (!strncasecmp(url, "file://", 7)) {
+ *source = new FileSource(url + 7);
+ } else if (strncasecmp(url, "http://", 7)
+ && strncasecmp(url, "https://", 8)) {
+ return ERROR_UNSUPPORTED;
+ } else {
+ KeyedVector<String8, String8> headers = mExtraHeaders;
+ if (range_offset > 0 || range_length >= 0) {
+ headers.add(
+ String8("Range"),
+ String8(
+ StringPrintf(
+ "bytes=%lld-%s",
+ range_offset,
+ range_length < 0
+ ? "" : StringPrintf("%lld",
+ range_offset + range_length - 1).c_str()).c_str()));
+ }
+ status_t err = mHTTPDataSource->connect(url, &headers);
- if (!strncasecmp(url, "file://", 7)) {
- source = new FileSource(url + 7);
- } else if (strncasecmp(url, "http://", 7)
- && strncasecmp(url, "https://", 8)) {
- return ERROR_UNSUPPORTED;
- } else {
- KeyedVector<String8, String8> headers = mExtraHeaders;
- if (range_offset > 0 || range_length >= 0) {
- headers.add(
- String8("Range"),
- String8(
- StringPrintf(
- "bytes=%lld-%s",
- range_offset,
- range_length < 0
- ? "" : StringPrintf("%lld", range_offset + range_length - 1).c_str()).c_str()));
- }
- status_t err = mHTTPDataSource->connect(url, &headers);
+ if (err != OK) {
+ return err;
+ }
- if (err != OK) {
- return err;
+ *source = mHTTPDataSource;
}
-
- source = mHTTPDataSource;
}
- off64_t size;
- status_t err = source->getSize(&size);
-
- if (err != OK) {
+ status_t getSizeErr = (*source)->getSize(&size);
+ if (getSizeErr != OK) {
size = 65536;
}
- sp<ABuffer> buffer = new ABuffer(size);
- buffer->setRange(0, 0);
+ sp<ABuffer> buffer = *out != NULL ? *out : new ABuffer(size);
+ if (*out == NULL) {
+ buffer->setRange(0, 0);
+ }
+ // adjust range_length if only reading partial block
+ if (block_size > 0 && (range_length == -1 || buffer->size() + block_size < range_length)) {
+ range_length = buffer->size() + block_size;
+ }
for (;;) {
+ // Only resize when we don't know the size.
size_t bufferRemaining = buffer->capacity() - buffer->size();
-
- if (bufferRemaining == 0) {
+ if (bufferRemaining == 0 && getSizeErr != OK) {
bufferRemaining = 32768;
ALOGV("increasing download buffer to %d bytes",
@@ -584,7 +612,9 @@ status_t LiveSession::fetchFile(
}
}
- ssize_t n = source->readAt(
+ // The DataSource is responsible for informing us of error (n < 0) or eof (n == 0)
+ // to help us break out of the loop.
+ ssize_t n = (*source)->readAt(
buffer->size(), buffer->data() + buffer->size(),
maxBytesToRead);
@@ -601,7 +631,7 @@ status_t LiveSession::fetchFile(
*out = buffer;
if (actualUrl != NULL) {
- *actualUrl = source->getUri();
+ *actualUrl = (*source)->getUri();
if (actualUrl->isEmpty()) {
*actualUrl = url;
}
@@ -618,7 +648,7 @@ sp<M3UParser> LiveSession::fetchPlaylist(
sp<ABuffer> buffer;
String8 actualUrl;
- status_t err = fetchFile(url, &buffer, 0, -1, &actualUrl);
+ status_t err = fetchFile(url, &buffer, 0, -1, 0, NULL, &actualUrl);
if (err != OK) {
return NULL;
@@ -834,19 +864,11 @@ void LiveSession::changeConfiguration(
uint32_t streamMask = 0;
- AString audioURI;
- if (mPlaylist->getAudioURI(item.mPlaylistIndex, &audioURI)) {
- streamMask |= STREAMTYPE_AUDIO;
- }
-
- AString videoURI;
- if (mPlaylist->getVideoURI(item.mPlaylistIndex, &videoURI)) {
- streamMask |= STREAMTYPE_VIDEO;
- }
-
- AString subtitleURI;
- if (mPlaylist->getSubtitleURI(item.mPlaylistIndex, &subtitleURI)) {
- streamMask |= STREAMTYPE_SUBTITLES;
+ AString URIs[kMaxStreams];
+ for (size_t i = 0; i < kMaxStreams; ++i) {
+ if (mPlaylist->getTypeURI(item.mPlaylistIndex, mStreams[i].mType, &URIs[i])) {
+ streamMask |= indexToType(i);
+ }
}
// Step 1, stop and discard fetchers that are no longer needed.
@@ -858,10 +880,10 @@ void LiveSession::changeConfiguration(
// If we're seeking all current fetchers are discarded.
if (timeUs < 0ll) {
- if (((streamMask & STREAMTYPE_AUDIO) && uri == audioURI)
- || ((streamMask & STREAMTYPE_VIDEO) && uri == videoURI)
- || ((streamMask & STREAMTYPE_SUBTITLES) && uri == subtitleURI)) {
- discardFetcher = false;
+ for (size_t j = 0; j < kMaxStreams; ++j) {
+ if ((streamMask & indexToType(j)) && uri == URIs[j]) {
+ discardFetcher = false;
+ }
}
}
@@ -875,14 +897,10 @@ void LiveSession::changeConfiguration(
sp<AMessage> msg = new AMessage(kWhatChangeConfiguration2, id());
msg->setInt32("streamMask", streamMask);
msg->setInt64("timeUs", timeUs);
- if (streamMask & STREAMTYPE_AUDIO) {
- msg->setString("audioURI", audioURI.c_str());
- }
- if (streamMask & STREAMTYPE_VIDEO) {
- msg->setString("videoURI", videoURI.c_str());
- }
- if (streamMask & STREAMTYPE_SUBTITLES) {
- msg->setString("subtitleURI", subtitleURI.c_str());
+ for (size_t i = 0; i < kMaxStreams; ++i) {
+ if (streamMask & indexToType(i)) {
+ msg->setString(mStreams[i].uriKey().c_str(), URIs[i].c_str());
+ }
}
// Every time a fetcher acknowledges the stopAsync or pauseAsync request
@@ -913,18 +931,13 @@ void LiveSession::onChangeConfiguration2(const sp<AMessage> &msg) {
uint32_t streamMask;
CHECK(msg->findInt32("streamMask", (int32_t *)&streamMask));
- AString audioURI, videoURI, subtitleURI;
- if (streamMask & STREAMTYPE_AUDIO) {
- CHECK(msg->findString("audioURI", &audioURI));
- ALOGV("audioURI = '%s'", audioURI.c_str());
- }
- if (streamMask & STREAMTYPE_VIDEO) {
- CHECK(msg->findString("videoURI", &videoURI));
- ALOGV("videoURI = '%s'", videoURI.c_str());
- }
- if (streamMask & STREAMTYPE_SUBTITLES) {
- CHECK(msg->findString("subtitleURI", &subtitleURI));
- ALOGV("subtitleURI = '%s'", subtitleURI.c_str());
+ AString URIs[kMaxStreams];
+ for (size_t i = 0; i < kMaxStreams; ++i) {
+ if (streamMask & indexToType(i)) {
+ const AString &uriKey = mStreams[i].uriKey();
+ CHECK(msg->findString(uriKey.c_str(), &URIs[i]));
+ ALOGV("%s = '%s'", uriKey.c_str(), URIs[i].c_str());
+ }
}
// Determine which decoders to shutdown on the player side,
@@ -934,15 +947,12 @@ void LiveSession::onChangeConfiguration2(const sp<AMessage> &msg) {
// 2) its streamtype was already active and still is but the URI
// has changed.
uint32_t changedMask = 0;
- if (((mStreamMask & streamMask & STREAMTYPE_AUDIO)
- && !(audioURI == mAudioURI))
- || (mStreamMask & ~streamMask & STREAMTYPE_AUDIO)) {
- changedMask |= STREAMTYPE_AUDIO;
- }
- if (((mStreamMask & streamMask & STREAMTYPE_VIDEO)
- && !(videoURI == mVideoURI))
- || (mStreamMask & ~streamMask & STREAMTYPE_VIDEO)) {
- changedMask |= STREAMTYPE_VIDEO;
+ for (size_t i = 0; i < kMaxStreams && i != kSubtitleIndex; ++i) {
+ if (((mStreamMask & streamMask & indexToType(i))
+ && !(URIs[i] == mStreams[i].mUri))
+ || (mStreamMask & ~streamMask & indexToType(i))) {
+ changedMask |= indexToType(i);
+ }
}
if (changedMask == 0) {
@@ -974,15 +984,10 @@ void LiveSession::onChangeConfiguration3(const sp<AMessage> &msg) {
uint32_t streamMask;
CHECK(msg->findInt32("streamMask", (int32_t *)&streamMask));
- AString audioURI, videoURI, subtitleURI;
- if (streamMask & STREAMTYPE_AUDIO) {
- CHECK(msg->findString("audioURI", &audioURI));
- }
- if (streamMask & STREAMTYPE_VIDEO) {
- CHECK(msg->findString("videoURI", &videoURI));
- }
- if (streamMask & STREAMTYPE_SUBTITLES) {
- CHECK(msg->findString("subtitleURI", &subtitleURI));
+ for (size_t i = 0; i < kMaxStreams; ++i) {
+ if (streamMask & indexToType(i)) {
+ CHECK(msg->findString(mStreams[i].uriKey().c_str(), &mStreams[i].mUri));
+ }
}
int64_t timeUs;
@@ -994,9 +999,6 @@ void LiveSession::onChangeConfiguration3(const sp<AMessage> &msg) {
mRealTimeBaseUs = ALooper::GetNowUs() - timeUs;
mStreamMask = streamMask;
- mAudioURI = audioURI;
- mVideoURI = videoURI;
- mSubtitleURI = subtitleURI;
// Resume all existing fetchers and assign them packet sources.
for (size_t i = 0; i < mFetcherInfos.size(); ++i) {
@@ -1004,22 +1006,12 @@ void LiveSession::onChangeConfiguration3(const sp<AMessage> &msg) {
uint32_t resumeMask = 0;
- sp<AnotherPacketSource> audioSource;
- if ((streamMask & STREAMTYPE_AUDIO) && uri == audioURI) {
- audioSource = mPacketSources.valueFor(STREAMTYPE_AUDIO);
- resumeMask |= STREAMTYPE_AUDIO;
- }
-
- sp<AnotherPacketSource> videoSource;
- if ((streamMask & STREAMTYPE_VIDEO) && uri == videoURI) {
- videoSource = mPacketSources.valueFor(STREAMTYPE_VIDEO);
- resumeMask |= STREAMTYPE_VIDEO;
- }
-
- sp<AnotherPacketSource> subtitleSource;
- if ((streamMask & STREAMTYPE_SUBTITLES) && uri == subtitleURI) {
- subtitleSource = mPacketSources.valueFor(STREAMTYPE_SUBTITLES);
- resumeMask |= STREAMTYPE_SUBTITLES;
+ sp<AnotherPacketSource> sources[kMaxStreams];
+ for (size_t j = 0; j < kMaxStreams; ++j) {
+ if ((streamMask & indexToType(j)) && uri == mStreams[j].mUri) {
+ sources[j] = mPacketSources.valueFor(indexToType(j));
+ resumeMask |= indexToType(j);
+ }
}
CHECK_NE(resumeMask, 0u);
@@ -1029,7 +1021,7 @@ void LiveSession::onChangeConfiguration3(const sp<AMessage> &msg) {
streamMask &= ~resumeMask;
mFetcherInfos.valueAt(i).mFetcher->startAsync(
- audioSource, videoSource, subtitleSource);
+ sources[kAudioIndex], sources[kVideoIndex], sources[kSubtitleIndex]);
}
// streamMask now only contains the types that need a new fetcher created.
@@ -1038,52 +1030,33 @@ void LiveSession::onChangeConfiguration3(const sp<AMessage> &msg) {
ALOGV("creating new fetchers for mask 0x%08x", streamMask);
}
- while (streamMask != 0) {
- StreamType streamType = (StreamType)(streamMask & ~(streamMask - 1));
+ for (size_t i = 0; i < kMaxStreams; i++) {
+ if (!(indexToType(i) & streamMask)) {
+ continue;
+ }
AString uri;
- switch (streamType) {
- case STREAMTYPE_AUDIO:
- uri = audioURI;
- break;
- case STREAMTYPE_VIDEO:
- uri = videoURI;
- break;
- case STREAMTYPE_SUBTITLES:
- uri = subtitleURI;
- break;
- default:
- TRESPASS();
- }
+ uri = mStreams[i].mUri;
sp<PlaylistFetcher> fetcher = addFetcher(uri.c_str());
CHECK(fetcher != NULL);
- sp<AnotherPacketSource> audioSource;
- if ((streamMask & STREAMTYPE_AUDIO) && uri == audioURI) {
- audioSource = mPacketSources.valueFor(STREAMTYPE_AUDIO);
- audioSource->clear();
+ sp<AnotherPacketSource> sources[kMaxStreams];
+ // TRICKY: looping from i as earlier streams are already removed from streamMask
+ for (size_t j = i; j < kMaxStreams; ++j) {
+ if ((streamMask & indexToType(j)) && uri == mStreams[j].mUri) {
+ sources[j] = mPacketSources.valueFor(indexToType(j));
+ sources[j]->clear();
- streamMask &= ~STREAMTYPE_AUDIO;
- }
-
- sp<AnotherPacketSource> videoSource;
- if ((streamMask & STREAMTYPE_VIDEO) && uri == videoURI) {
- videoSource = mPacketSources.valueFor(STREAMTYPE_VIDEO);
- videoSource->clear();
-
- streamMask &= ~STREAMTYPE_VIDEO;
- }
-
- sp<AnotherPacketSource> subtitleSource;
- if ((streamMask & STREAMTYPE_SUBTITLES) && uri == subtitleURI) {
- subtitleSource = mPacketSources.valueFor(STREAMTYPE_SUBTITLES);
- subtitleSource->clear();
-
- streamMask &= ~STREAMTYPE_SUBTITLES;
+ streamMask &= ~indexToType(j);
+ }
}
- fetcher->startAsync(audioSource, videoSource, subtitleSource, timeUs);
+ fetcher->startAsync(
+ sources[kAudioIndex],
+ sources[kVideoIndex],
+ sources[kSubtitleIndex],
+ timeUs);
}
// All fetchers have now been started, the configuration change
generated by cgit v1.1 at 2024-05-15 08:10:32 +0000