int32
MediaView::MediaPlayer(
void *arg)
{
MediaView* view = (MediaView *)arg;
BWindow* window = view->Window();
BBitmap* bitmap = view->fBitmap;
BMediaTrack* videoTrack = view->fVideoTrack;
BMediaTrack* audioTrack = view->fAudioTrack;
BMediaTrack* counterTrack = (videoTrack != NULL) ? videoTrack : audioTrack;
AudioOutput* audioOutput = view->fAudioOutput;
void* adBuffer = view->fAudioDumpingBuffer;
int64 numFrames = counterTrack->CountFrames();
int64 numFramesToSkip = 0;
int64 numSkippedFrames = 0;
bool scrubbing = false;
bool seekNeeded = false;
int64 dummy;
media_header mh;
bigtime_t vStartTime, aStartTime, seekTime, snoozeTime, startTime;
bigtime_t curScrubbing, lastScrubbing, lastTime;
curScrubbing = lastScrubbing = system_time();
seekTime = 0LL;
// Main processing loop (handle stop->start->stop)
while (acquire_sem(view->fPlaySem) == B_OK) {
release_sem(view->fPlaySem);
// as we are doing stop->start, restart audio if needed.
if (audioTrack != NULL)
audioOutput->Play();
startTime = system_time()-counterTrack->CurrentTime();
// This will loop until the end of the stream
while ((counterTrack->CurrentFrame() < numFrames) || scrubbing) {
// We are in scrub mode
if (acquire_sem(view->fScrubSem) == B_OK) {
curScrubbing = system_time();
// We are entering scrub mode
if (!scrubbing) {
if (audioTrack != NULL)
audioOutput->Stop();
scrubbing = true;
}
// Do a seek.
seekNeeded = true;
seekTime = view->fScrubTime;
}
// We are not scrubbing
else if (scrubbing) {
if (audioTrack != NULL)
audioOutput->Play();
scrubbing = false;
}
// Handle seeking
if (seekNeeded) {
if (videoTrack) {
// Seek the seekTime as close as possible
vStartTime = seekTime;
videoTrack->SeekToTime(&vStartTime);
// Read frames until we get less than 50ms ahead.
lastTime = vStartTime;
do {
bitmap->LockBits();
status_t err = videoTrack->ReadFrames((char*)bitmap->Bits(), &dummy, &mh);
bitmap->UnlockBits();
if (err != B_OK) break;
vStartTime = mh.start_time;
if ((dummy == 0) || (vStartTime <= lastTime))
break;
lastTime = vStartTime;
} while (seekTime - vStartTime > 50000);
}
if (audioTrack) {
// Seek the extractor as close as possible
aStartTime = seekTime;
audioOutput->SeekToTime(&aStartTime);
// Read frames until we get less than 50ms ahead.
lastTime = aStartTime;
while (seekTime - aStartTime > 50000) {
if (audioTrack->ReadFrames((char *)adBuffer, &dummy, &mh) != B_OK)
break;
aStartTime = mh.start_time;
if ((dummy == 0) || (aStartTime <= lastTime))
break;
lastTime = aStartTime;
}
}
else startTime = system_time() - vStartTime;
// Set the current time
view->fCurTime = seekTime;
seekNeeded = false;
}
// Handle normal playing mode
else {
// Get the next video frame, if any
if (videoTrack != NULL) {
bitmap->LockBits();
status_t err = videoTrack->ReadFrames((char*)bitmap->Bits(), &dummy, &mh);
bitmap->UnlockBits();
if (err != B_OK) goto do_reset;
if (dummy == 0)
goto do_reset;
vStartTime = mh.start_time;
}
// Estimated snoozeTime
if (audioTrack != NULL)
startTime = audioOutput->TrackTimebase();
if (videoTrack != NULL)
snoozeTime = vStartTime - (system_time() - startTime);
else
snoozeTime = 25000;
// Handle timing issues
if (snoozeTime > 5000LL) {
view->fSnoozing = true;
snooze(snoozeTime-1000);
view->fSnoozing = false;
}
else if (snoozeTime < -5000) {
numSkippedFrames++;
numFramesToSkip++;
}
// Set the current time
if (!scrubbing) {
view->fCurTime = system_time() - startTime;
if (view->fCurTime < seekTime)
view->fCurTime = seekTime;
}
}
// Handle the drawing : no drawing if we need to skip a frame...
if (numSkippedFrames > 0)
numSkippedFrames--;
// If we can't lock the window after 50ms, better to give up for
// that frame...
else if (window->LockWithTimeout(50000) == B_OK) {
if ((videoTrack != NULL) && !view->fUsingOverlay)
view->DrawBitmap(bitmap, view->VideoBounds());
view->fMediaBar->SetCurTime(view->fCurTime);
window->Unlock();
// In scrub mode, don't scrub more than 10 times a second
if (scrubbing) {
snoozeTime = (100000LL+lastScrubbing) - system_time();
if (snoozeTime > 4000LL) {
view->fSnoozing = true;
snooze(snoozeTime-1000LL);
view->fSnoozing = false;
}
lastScrubbing = curScrubbing;
}
}
// Check if we are required to stop.
if (acquire_sem_etc(view->fPlaySem, 1, B_TIMEOUT, 0) == B_OK)
release_sem(view->fPlaySem);
// The MediaView asked us to stop.
else {
if (audioTrack != NULL)
audioOutput->Stop();
goto do_restart;
}
DEBUG("############ Current frame:%Ld, total frame:%Ld\n", counterTrack->CurrentFrame(), numFrames);
}
// If we exited the main streaming loop because we are at the end,
// then we need to loop.
if (counterTrack->CurrentFrame() >= numFrames) {
do_reset:
if (audioTrack != NULL)
audioOutput->Stop();
seekNeeded = true;
seekTime = 0LL;
scrubbing = true;
}
do_restart:;
}
return (B_NO_ERROR);
}
status_t
MediaConverterApp::_ConvertFile(BMediaFile* inFile, BMediaFile* outFile,
media_codec_info* audioCodec, media_codec_info* videoCodec,
int32 audioQuality, int32 videoQuality,
bigtime_t startDuration, bigtime_t endDuration)
{
BMediaTrack* inVidTrack = NULL;
BMediaTrack* inAudTrack = NULL;
BMediaTrack* outVidTrack = NULL;
BMediaTrack* outAudTrack = NULL;
media_format inFormat;
media_format outAudFormat;
media_format outVidFormat;
media_raw_audio_format* raf = NULL;
media_raw_video_format* rvf = NULL;
int32 width = -1;
int32 height = -1;
uint8* videoBuffer = NULL;
uint8* audioBuffer = NULL;
// gather the necessary format information and construct output tracks
int64 videoFrameCount = 0;
int64 audioFrameCount = 0;
status_t ret = B_OK;
int32 tracks = inFile->CountTracks();
for (int32 i = 0; i < tracks && (!outAudTrack || !outVidTrack); i++) {
BMediaTrack* inTrack = inFile->TrackAt(i);
memset(&inFormat, 0, sizeof(media_format));
inTrack->EncodedFormat(&inFormat);
if (inFormat.IsAudio() && (audioCodec != NULL)) {
inAudTrack = inTrack;
memset(&outAudFormat, 0, sizeof(media_format));
outAudFormat.type = B_MEDIA_RAW_AUDIO;
raf = &(outAudFormat.u.raw_audio);
inTrack->DecodedFormat(&outAudFormat);
audioBuffer = new uint8[raf->buffer_size];
// audioFrameSize = (raf->format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
// audioFrameSize = (raf->format & 0xf) * raf->channel_count;
outAudTrack = outFile->CreateTrack(&outAudFormat, audioCodec);
if (outAudTrack != NULL) {
if (outAudTrack->SetQuality(audioQuality / 100.0f) != B_OK
&& fWin->Lock()) {
fWin->SetAudioQualityLabel(
B_TRANSLATE("Audio quality not supported"));
fWin->Unlock();
}
}
} else if (inFormat.IsVideo() && (videoCodec != NULL)) {
inVidTrack = inTrack;
width = (int32)inFormat.Width();
height = (int32)inFormat.Height();
// construct desired decoded video format
memset(&outVidFormat, 0, sizeof(outVidFormat));
outVidFormat.type = B_MEDIA_RAW_VIDEO;
rvf = &(outVidFormat.u.raw_video);
rvf->last_active = (uint32)(height - 1);
rvf->orientation = B_VIDEO_TOP_LEFT_RIGHT;
rvf->display.format = B_RGB32;
rvf->display.bytes_per_row = 4 * width;
rvf->display.line_width = width;
rvf->display.line_count = height;
inVidTrack->DecodedFormat(&outVidFormat);
if (rvf->display.format == B_RGBA32) {
printf("fixing color space (B_RGBA32 -> B_RGB32)");
rvf->display.format = B_RGB32;
}
// Transfer the display aspect ratio.
if (inFormat.type == B_MEDIA_ENCODED_VIDEO) {
rvf->pixel_width_aspect
= inFormat.u.encoded_video.output.pixel_width_aspect;
rvf->pixel_height_aspect
= inFormat.u.encoded_video.output.pixel_height_aspect;
} else {
rvf->pixel_width_aspect
= inFormat.u.raw_video.pixel_width_aspect;
rvf->pixel_height_aspect
= inFormat.u.raw_video.pixel_height_aspect;
}
videoBuffer = new (std::nothrow) uint8[height
* rvf->display.bytes_per_row];
outVidTrack = outFile->CreateTrack(&outVidFormat, videoCodec);
if (outVidTrack != NULL) {
// DLM Added to use 3ivx Parameter View
const char* videoQualitySupport = NULL;
BView* encoderView = outVidTrack->GetParameterView();
if (encoderView) {
MediaEncoderWindow* encoderWin
= new MediaEncoderWindow(BRect(50, 50, 520, 555),
encoderView);
encoderWin->Go();
// blocks until the window is quit
// The quality setting is ignored by the 3ivx encoder if the
// view was displayed, but this method is the trigger to read
// all the parameter settings
outVidTrack->SetQuality(videoQuality / 100.0f);
// We can now delete the encoderView created for us by the encoder
delete encoderView;
encoderView = NULL;
videoQualitySupport =
B_TRANSLATE("Video using parameters form settings");
} else {
if (outVidTrack->SetQuality(videoQuality / 100.0f) >= B_OK)
videoQualitySupport =
B_TRANSLATE("Video quality not supported");
}
if (videoQualitySupport && fWin->Lock()) {
fWin->SetVideoQualityLabel(videoQualitySupport);
fWin->Unlock();
}
}
} else {
// didn't do anything with the track
inFile->ReleaseTrack(inTrack);
}
}
if (!outVidTrack && !outAudTrack) {
printf("MediaConverterApp::_ConvertFile() - no tracks found!\n");
ret = B_ERROR;
}
if (fCancel) {
// don't have any video or audio tracks here, or cancelled
printf("MediaConverterApp::_ConvertFile()"
" - user canceled before transcoding\n");
ret = B_CANCELED;
}
if (ret < B_OK) {
delete[] audioBuffer;
delete[] videoBuffer;
delete outFile;
return ret;
}
outFile->CommitHeader();
// this is where you would call outFile->AddCopyright(...)
int64 framesRead;
media_header mh;
int32 lastPercent, currPercent;
float completePercent;
BString status;
int64 start;
int64 end;
int32 stat = 0;
// read video from source and write to destination, if necessary
if (outVidTrack != NULL) {
lastPercent = -1;
videoFrameCount = inVidTrack->CountFrames();
if (endDuration == 0 || endDuration < startDuration) {
start = 0;
end = videoFrameCount;
} else {
inVidTrack->SeekToTime(&endDuration, stat);
end = inVidTrack->CurrentFrame();
inVidTrack->SeekToTime(&startDuration, stat);
start = inVidTrack->CurrentFrame();
if (end > videoFrameCount)
end = videoFrameCount;
if (start > end)
start = 0;
}
framesRead = 0;
for (int64 i = start; (i <= end) && !fCancel; i += framesRead) {
if ((ret = inVidTrack->ReadFrames(videoBuffer, &framesRead,
&mh)) != B_OK) {
fprintf(stderr, "Error reading video frame %" B_PRId64 ": %s\n", i,
strerror(ret));
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Error read video frame %" B_PRId64), i);
status.UnlockBuffer();
SetStatusMessage(status.String());
break;
}
if ((ret = outVidTrack->WriteFrames(videoBuffer, framesRead,
mh.u.encoded_video.field_flags)) != B_OK) {
fprintf(stderr, "Error writing video frame %" B_PRId64 ": %s\n", i,
strerror(ret));
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Error writing video frame %" B_PRId64), i);
status.UnlockBuffer();
SetStatusMessage(status.String());
break;
}
completePercent = (float)(i - start) / (float)(end - start) * 100;
currPercent = (int32)completePercent;
if (currPercent > lastPercent) {
lastPercent = currPercent;
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Writing video track: %" B_PRId32 "%% complete"),
currPercent);
status.UnlockBuffer();
SetStatusMessage(status.String());
}
}
outVidTrack->Flush();
inFile->ReleaseTrack(inVidTrack);
}
// read audio from source and write to destination, if necessary
if (outAudTrack != NULL) {
lastPercent = -1;
audioFrameCount = inAudTrack->CountFrames();
if (endDuration == 0 || endDuration < startDuration) {
start = 0;
end = audioFrameCount;
} else {
inAudTrack->SeekToTime(&endDuration, stat);
end = inAudTrack->CurrentFrame();
inAudTrack->SeekToTime(&startDuration, stat);
start = inAudTrack->CurrentFrame();
if (end > audioFrameCount)
end = audioFrameCount;
if (start > end)
start = 0;
}
for (int64 i = start; (i <= end) && !fCancel; i += framesRead) {
if ((ret = inAudTrack->ReadFrames(audioBuffer, &framesRead,
&mh)) != B_OK) {
fprintf(stderr, "Error reading audio frames: %s\n", strerror(ret));
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Error read audio frame %" B_PRId64), i);
status.UnlockBuffer();
SetStatusMessage(status.String());
break;
}
if ((ret = outAudTrack->WriteFrames(audioBuffer,
framesRead)) != B_OK) {
fprintf(stderr, "Error writing audio frames: %s\n", strerror(ret));
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Error writing audio frame %" B_PRId64), i);
status.UnlockBuffer();
SetStatusMessage(status.String());
break;
}
completePercent = (float)(i - start) / (float)(end - start) * 100;
currPercent = (int32)completePercent;
if (currPercent > lastPercent) {
lastPercent = currPercent;
snprintf(status.LockBuffer(128), 128,
B_TRANSLATE("Writing audio track: %" B_PRId32 "%% complete"),
currPercent);
status.UnlockBuffer();
SetStatusMessage(status.String());
}
}
outAudTrack->Flush();
inFile->ReleaseTrack(inAudTrack);
}
outFile->CloseFile();
delete outFile;
delete[] videoBuffer;
delete[] audioBuffer;
return ret;
}