#include <signal.h>
#include <getopt.h>
#include <sys/wait.h>
+#include <termios.h>
#include <assert.h>
#include "screenrecord.h"
// Command-line parameters.
static bool gVerbose = false; // chatty on stdout
static bool gRotate = false; // rotate 90 degrees
+static bool gRawOutput = false; // generate raw H.264 byte stream output
static bool gSizeSpecified = false; // was size explicitly requested?
static bool gWantInfoScreen = false; // do we want initial info screen?
static bool gWantFrameTime = false; // do we want times on each frame?
* input frames are coming from the virtual display as fast as SurfaceFlinger
* wants to send them.
*
+ * Exactly one of muxer or rawFp must be non-null.
+ *
* The muxer must *not* have been started before calling.
*/
static status_t runEncoder(const sp<MediaCodec>& encoder,
- const sp<MediaMuxer>& muxer, const sp<IBinder>& mainDpy,
+ const sp<MediaMuxer>& muxer, FILE* rawFp, const sp<IBinder>& mainDpy,
const sp<IBinder>& virtualDpy, uint8_t orientation) {
static int kTimeout = 250000; // be responsive on signal
status_t err;
int64_t endWhenNsec = startWhenNsec + seconds_to_nanoseconds(gTimeLimitSec);
DisplayInfo mainDpyInfo;
+ assert((rawFp == NULL && muxer != NULL) || (rawFp != NULL && muxer == NULL));
+
Vector<sp<ABuffer> > buffers;
err = encoder->getOutputBuffers(&buffers);
if (err != NO_ERROR) {
case NO_ERROR:
// got a buffer
if ((flags & MediaCodec::BUFFER_FLAG_CODECCONFIG) != 0) {
- // ignore this -- we passed the CSD into MediaMuxer when
- // we got the format change notification
- ALOGV("Got codec config buffer (%u bytes); ignoring", size);
- size = 0;
+ ALOGV("Got codec config buffer (%u bytes)", size);
+ if (muxer != NULL) {
+ // ignore this -- we passed the CSD into MediaMuxer when
+ // we got the format change notification
+ size = 0;
+ }
}
if (size != 0) {
ALOGV("Got data in buffer %d, size=%d, pts=%lld",
bufIndex, size, ptsUsec);
- assert(trackIdx != -1);
{ // scope
ATRACE_NAME("orientation");
ptsUsec = systemTime(SYSTEM_TIME_MONOTONIC) / 1000;
}
- // The MediaMuxer docs are unclear, but it appears that we
- // need to pass either the full set of BufferInfo flags, or
- // (flags & BUFFER_FLAG_SYNCFRAME).
- //
- // If this blocks for too long we could drop frames. We may
- // want to queue these up and do them on a different thread.
- { // scope
+ if (muxer == NULL) {
+ fwrite(buffers[bufIndex]->data(), 1, size, rawFp);
+ // Flush the data immediately in case we're streaming.
+ // We don't want to do this if all we've written is
+ // the SPS/PPS data because mplayer gets confused.
+ if ((flags & MediaCodec::BUFFER_FLAG_CODECCONFIG) == 0) {
+ fflush(rawFp);
+ }
+ } else {
+ // The MediaMuxer docs are unclear, but it appears that we
+ // need to pass either the full set of BufferInfo flags, or
+ // (flags & BUFFER_FLAG_SYNCFRAME).
+ //
+ // If this blocks for too long we could drop frames. We may
+ // want to queue these up and do them on a different thread.
ATRACE_NAME("write sample");
+ assert(trackIdx != -1);
err = muxer->writeSampleData(buffers[bufIndex], trackIdx,
ptsUsec, flags);
if (err != NO_ERROR) {
ALOGV("Encoder format changed");
sp<AMessage> newFormat;
encoder->getOutputFormat(&newFormat);
- trackIdx = muxer->addTrack(newFormat);
- ALOGV("Starting muxer");
- err = muxer->start();
- if (err != NO_ERROR) {
- fprintf(stderr, "Unable to start muxer (err=%d)\n", err);
- return err;
+ if (muxer != NULL) {
+ trackIdx = muxer->addTrack(newFormat);
+ ALOGV("Starting muxer");
+ err = muxer->start();
+ if (err != NO_ERROR) {
+ fprintf(stderr, "Unable to start muxer (err=%d)\n", err);
+ return err;
+ }
}
}
break;
}
/*
+ * Raw H.264 byte stream output requested. Send the output to stdout
+ * if desired. If the output is a tty, reconfigure it to avoid the
+ * CRLF line termination that we see with "adb shell" commands.
+ */
+static FILE* prepareRawOutput(const char* fileName) {
+ FILE* rawFp = NULL;
+
+ if (strcmp(fileName, "-") == 0) {
+ if (gVerbose) {
+ fprintf(stderr, "ERROR: verbose output and '-' not compatible");
+ return NULL;
+ }
+ rawFp = stdout;
+ } else {
+ rawFp = fopen(fileName, "w");
+ if (rawFp == NULL) {
+ fprintf(stderr, "fopen raw failed: %s\n", strerror(errno));
+ return NULL;
+ }
+ }
+
+ int fd = fileno(rawFp);
+ if (isatty(fd)) {
+ // best effort -- reconfigure tty for "raw"
+ ALOGD("raw video output to tty (fd=%d)", fd);
+ struct termios term;
+ if (tcgetattr(fd, &term) == 0) {
+ cfmakeraw(&term);
+ if (tcsetattr(fd, TCSANOW, &term) == 0) {
+ ALOGD("tty successfully configured for raw");
+ }
+ }
+ }
+
+ return rawFp;
+}
+
+/*
* Main "do work" method.
*
* Configures codec, muxer, and virtual display, then starts moving bits
return err;
}
- // Configure muxer. We have to wait for the CSD blob from the encoder
- // before we can start it.
- sp<MediaMuxer> muxer = new MediaMuxer(fileName,
- MediaMuxer::OUTPUT_FORMAT_MPEG_4);
- if (gRotate) {
- muxer->setOrientationHint(90); // TODO: does this do anything?
+ sp<MediaMuxer> muxer = NULL;
+ FILE* rawFp = NULL;
+ if (gRawOutput) {
+ rawFp = prepareRawOutput(fileName);
+ if (rawFp == NULL) {
+ encoder->release();
+ return -1;
+ }
+ } else {
+ // Configure muxer. We have to wait for the CSD blob from the encoder
+ // before we can start it.
+ muxer = new MediaMuxer(fileName, MediaMuxer::OUTPUT_FORMAT_MPEG_4);
+ if (gRotate) {
+ muxer->setOrientationHint(90); // TODO: does this do anything?
+ }
}
// Main encoder loop.
- err = runEncoder(encoder, muxer, mainDpy, dpy, mainDpyInfo.orientation);
+ err = runEncoder(encoder, muxer, rawFp, mainDpy, dpy,
+ mainDpyInfo.orientation);
if (err != NO_ERROR) {
fprintf(stderr, "Encoder failed (err=%d)\n", err);
// fall through to cleanup
overlay->stop();
}
encoder->stop();
- // If we don't stop muxer explicitly, i.e. let the destructor run,
- // it may hang (b/11050628).
- muxer->stop();
+ if (muxer != NULL) {
+ // If we don't stop muxer explicitly, i.e. let the destructor run,
+ // it may hang (b/11050628).
+ muxer->stop();
+ } else if (rawFp != stdout) {
+ fclose(rawFp);
+ }
encoder->release();
return err;
{ "show-frame-time", no_argument, NULL, 'f' },
{ "bugreport", no_argument, NULL, 'u' },
{ "rotate", no_argument, NULL, 'r' },
+ { "raw", no_argument, NULL, 'w' },
{ NULL, 0, NULL, 0 }
};
// experimental feature
gRotate = true;
break;
+ case 'w':
+ // experimental feature
+ gRawOutput = true;
+ break;
default:
if (ic != '?') {
fprintf(stderr, "getopt_long returned unexpected value 0x%x\n", ic);
return 2;
}
- // MediaMuxer tries to create the file in the constructor, but we don't
- // learn about the failure until muxer.start(), which returns a generic
- // error code without logging anything. We attempt to create the file
- // now for better diagnostics.
const char* fileName = argv[optind];
- int fd = open(fileName, O_CREAT | O_RDWR, 0644);
- if (fd < 0) {
- fprintf(stderr, "Unable to open '%s': %s\n", fileName, strerror(errno));
- return 1;
+ if (!gRawOutput) {
+ // MediaMuxer tries to create the file in the constructor, but we don't
+ // learn about the failure until muxer.start(), which returns a generic
+ // error code without logging anything. We attempt to create the file
+ // now for better diagnostics.
+ int fd = open(fileName, O_CREAT | O_RDWR, 0644);
+ if (fd < 0) {
+ fprintf(stderr, "Unable to open '%s': %s\n", fileName, strerror(errno));
+ return 1;
+ }
+ close(fd);
}
- close(fd);
status_t err = recordScreen(fileName);
if (err == NO_ERROR) {
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