Add a test utility for MediaMuxer.
This test/utility copy samples from one video and mux into another video.
It support trimming, cutting audio or video track.
It can run simply as command line like:
adb shell muxer -a -v -s 1000 -e 8000 "/sdcard/DCIM/Camera/VID_*.mp4"
bug:7991013
Change-Id: I8a2eeff3cabd001b6b2a7062d991dd076edbf22e
diff --git a/cmds/stagefright/Android.mk b/cmds/stagefright/Android.mk
index a59186a..d583e65 100644
--- a/cmds/stagefright/Android.mk
+++ b/cmds/stagefright/Android.mk
@@ -165,3 +165,26 @@
include $(BUILD_EXECUTABLE)
+################################################################################
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ muxer.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libstagefright liblog libutils libbinder libstagefright_foundation \
+ libmedia libgui libcutils libui libc
+
+LOCAL_C_INCLUDES:= \
+ frameworks/av/media/libstagefright \
+ $(TOP)/frameworks/native/include/media/openmax
+
+LOCAL_CFLAGS += -Wno-multichar
+
+LOCAL_MODULE_TAGS := debug
+
+LOCAL_MODULE:= muxer
+
+include $(BUILD_EXECUTABLE)
+
diff --git a/cmds/stagefright/muxer.cpp b/cmds/stagefright/muxer.cpp
new file mode 100644
index 0000000..1b127c7
--- /dev/null
+++ b/cmds/stagefright/muxer.cpp
@@ -0,0 +1,295 @@
+/*
+ * Copyright (C) 2013 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 "muxer"
+#include <utils/Log.h>
+
+#include <binder/ProcessState.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaCodec.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaMuxer.h>
+#include <media/stagefright/MetaData.h>
+#include <media/stagefright/NuMediaExtractor.h>
+
+static void usage(const char *me) {
+ fprintf(stderr, "usage: %s [-a] [-v] [-s <trim start time>]"
+ " [-e <trim end time>] [-o <output file>]"
+ " <input video file>\n", me);
+ fprintf(stderr, " -h help\n");
+ fprintf(stderr, " -a use audio\n");
+ fprintf(stderr, " -v use video\n");
+ fprintf(stderr, " -s Time in milli-seconds when the trim should start\n");
+ fprintf(stderr, " -e Time in milli-seconds when the trim should end\n");
+ fprintf(stderr, " -o output file name. Default is /sdcard/muxeroutput.mp4\n");
+
+ exit(1);
+}
+
+using namespace android;
+
+static int muxing(
+ const android::sp<android::ALooper> &looper,
+ const char *path,
+ bool useAudio,
+ bool useVideo,
+ const char *outputFileName,
+ bool enableTrim,
+ int trimStartTimeMs,
+ int trimEndTimeMs) {
+ sp<NuMediaExtractor> extractor = new NuMediaExtractor;
+ if (extractor->setDataSource(path) != OK) {
+ fprintf(stderr, "unable to instantiate extractor. %s\n", path);
+ return 1;
+ }
+
+ if (outputFileName == NULL) {
+ outputFileName = "/sdcard/muxeroutput.mp4";
+ }
+
+ ALOGV("input file %s, output file %s", path, outputFileName);
+ ALOGV("useAudio %d, useVideo %d", useAudio, useVideo);
+
+ sp<MediaMuxer> muxer = new MediaMuxer(outputFileName);
+
+ size_t trackCount = extractor->countTracks();
+ // Map the extractor's track index to the muxer's track index.
+ KeyedVector<size_t, ssize_t> trackIndexMap;
+ size_t bufferSize = 1 * 1024 * 1024; // default buffer size is 1MB.
+
+ bool haveAudio = false;
+ bool haveVideo = false;
+
+ int64_t trimStartTimeUs = trimStartTimeMs * 1000;
+ int64_t trimEndTimeUs = trimEndTimeMs * 1000;
+ bool trimStarted = false;
+ int64_t trimOffsetTimeUs = 0;
+
+ for (size_t i = 0; i < trackCount; ++i) {
+ sp<AMessage> format;
+ status_t err = extractor->getTrackFormat(i, &format);
+ CHECK_EQ(err, (status_t)OK);
+ ALOGV("extractor getTrackFormat: %s", format->debugString().c_str());
+
+ AString mime;
+ CHECK(format->findString("mime", &mime));
+
+ bool isAudio = !strncasecmp(mime.c_str(), "audio/", 6);
+ bool isVideo = !strncasecmp(mime.c_str(), "video/", 6);
+
+ if (useAudio && !haveAudio && isAudio) {
+ haveAudio = true;
+ } else if (useVideo && !haveVideo && isVideo) {
+ haveVideo = true;
+ } else {
+ continue;
+ }
+
+ if (isVideo) {
+ int width , height;
+ CHECK(format->findInt32("width", &width));
+ CHECK(format->findInt32("height", &height));
+ bufferSize = width * height * 4; // Assuming it is maximally 4BPP
+ }
+
+ int64_t duration;
+ CHECK(format->findInt64("durationUs", &duration));
+
+ // Since we got the duration now, correct the start time.
+ if (enableTrim) {
+ if (trimStartTimeUs > duration) {
+ fprintf(stderr, "Warning: trimStartTimeUs > duration,"
+ " reset to 0\n");
+ trimStartTimeUs = 0;
+ }
+ }
+
+ ALOGV("selecting track %d", i);
+
+ err = extractor->selectTrack(i);
+ CHECK_EQ(err, (status_t)OK);
+
+ ssize_t newTrackIndex = muxer->addTrack(format);
+ CHECK_GE(newTrackIndex, 0);
+ trackIndexMap.add(i, newTrackIndex);
+ }
+
+ int64_t muxerStartTimeUs = ALooper::GetNowUs();
+
+ bool sawInputEOS = false;
+
+ size_t trackIndex = -1;
+ sp<ABuffer> newBuffer = new ABuffer(bufferSize);
+
+ muxer->start();
+
+ while (!sawInputEOS) {
+ status_t err = extractor->getSampleTrackIndex(&trackIndex);
+ if (err != OK) {
+ ALOGV("saw input eos, err %d", err);
+ sawInputEOS = true;
+ break;
+ } else {
+ err = extractor->readSampleData(newBuffer);
+ CHECK_EQ(err, (status_t)OK);
+
+ int64_t timeUs;
+ err = extractor->getSampleTime(&timeUs);
+ CHECK_EQ(err, (status_t)OK);
+
+ sp<MetaData> meta;
+ err = extractor->getSampleMeta(&meta);
+ CHECK_EQ(err, (status_t)OK);
+
+ uint32_t sampleFlags = 0;
+ int32_t val;
+ if (meta->findInt32(kKeyIsSyncFrame, &val) && val != 0) {
+ // We only support BUFFER_FLAG_SYNCFRAME in the flag for now.
+ sampleFlags |= MediaCodec::BUFFER_FLAG_SYNCFRAME;
+
+ // We turn on trimming at the sync frame.
+ if (enableTrim && timeUs > trimStartTimeUs &&
+ timeUs <= trimEndTimeUs) {
+ if (trimStarted == false) {
+ trimOffsetTimeUs = timeUs;
+ }
+ trimStarted = true;
+ }
+ }
+ // Trim can end at any non-sync frame.
+ if (enableTrim && timeUs > trimEndTimeUs) {
+ trimStarted = false;
+ }
+
+ if (!enableTrim || (enableTrim && trimStarted)) {
+ err = muxer->writeSampleData(newBuffer,
+ trackIndexMap.valueFor(trackIndex),
+ timeUs - trimOffsetTimeUs, sampleFlags);
+ }
+
+ extractor->advance();
+ }
+ }
+
+ muxer->stop();
+ newBuffer.clear();
+ trackIndexMap.clear();
+
+ int64_t elapsedTimeUs = ALooper::GetNowUs() - muxerStartTimeUs;
+ fprintf(stderr, "SUCCESS: muxer generate the video in %lld ms\n",
+ elapsedTimeUs / 1000);
+
+ return 0;
+}
+
+int main(int argc, char **argv) {
+ const char *me = argv[0];
+
+ bool useAudio = false;
+ bool useVideo = false;
+ char *outputFileName = NULL;
+ int trimStartTimeMs = -1;
+ int trimEndTimeMs = -1;
+ // When trimStartTimeMs and trimEndTimeMs seems valid, we turn this switch
+ // to true.
+ bool enableTrim = false;
+
+ int res;
+ while ((res = getopt(argc, argv, "h?avo:s:e:")) >= 0) {
+ switch (res) {
+ case 'a':
+ {
+ useAudio = true;
+ break;
+ }
+
+ case 'v':
+ {
+ useVideo = true;
+ break;
+ }
+
+ case 'o':
+ {
+ outputFileName = optarg;
+ break;
+ }
+
+ case 's':
+ {
+ trimStartTimeMs = atoi(optarg);
+ break;
+ }
+
+ case 'e':
+ {
+ trimEndTimeMs = atoi(optarg);
+ break;
+ }
+
+ case '?':
+ case 'h':
+ default:
+ {
+ usage(me);
+ }
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 1) {
+ usage(me);
+ }
+
+ if (trimStartTimeMs < 0 || trimEndTimeMs < 0) {
+ // If no input on either 's' or 'e', or they are obviously wrong input,
+ // then turn off trimming.
+ ALOGV("Trimming is disabled, copying the whole length video.");
+ enableTrim = false;
+ } else if (trimStartTimeMs > trimEndTimeMs) {
+ fprintf(stderr, "ERROR: start time is bigger\n");
+ return 1;
+ } else {
+ enableTrim = true;
+ }
+
+ if (!useAudio && !useVideo) {
+ fprintf(stderr, "ERROR: Missing both -a and -v, no track to mux then.\n");
+ return 1;
+ }
+ ProcessState::self()->startThreadPool();
+
+ // Make sure setDataSource() works.
+ DataSource::RegisterDefaultSniffers();
+
+ sp<ALooper> looper = new ALooper;
+ looper->start();
+
+ int result = muxing(looper, argv[0], useAudio, useVideo, outputFileName,
+ enableTrim, trimStartTimeMs, trimEndTimeMs);
+
+ looper->stop();
+
+ return result;
+}