nsresult
AudioSink::InitializeAudioStream()
{
// AudioStream initialization can block for extended periods in unusual
// circumstances, so we take care to drop the decoder monitor while
// initializing.
RefPtr<AudioStream> audioStream(new AudioStream());
audioStream->Init(mInfo.mChannels, mInfo.mRate,
mChannel, AudioStream::HighLatency);
// TODO: Check Init's return value and bail on error. Unfortunately this
// causes some tests to fail due to playback failing.
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mAudioStream = audioStream;
UpdateStreamSettings();
return NS_OK;
}
nsresult
DecodedAudioDataSink::InitializeAudioStream()
{
// AudioStream initialization can block for extended periods in unusual
// circumstances, so we take care to drop the decoder monitor while
// initializing.
RefPtr<AudioStream> audioStream(new AudioStream());
nsresult rv = audioStream->Init(mInfo.mChannels, mInfo.mRate,
mChannel, AudioStream::HighLatency);
if (NS_FAILED(rv)) {
audioStream->Shutdown();
return rv;
}
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mAudioStream = audioStream;
return NS_OK;
}
/*
static void dump_stream_format(AVFormatContext *ic, int i, int index, int is_output)
{
char buf[256];
int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
AVStream *st = ic->streams[i];
int g = av_gcd(st->time_base.num, st->time_base.den);
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
avcodec_string(buf, sizeof(buf), st->codec, is_output);
av_log(NULL, AV_LOG_INFO, " Stream #%d.%d", index, i);
// the pid is an important information, so we display it
// XXX: add a generic system
if (flags & AVFMT_SHOW_IDS)
av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
if (lang)
av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num/g, st->time_base.den/g);
av_log(NULL, AV_LOG_INFO, ": %s", buf);
if (st->sample_aspect_ratio.num && // default
av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
AVRational display_aspect_ratio;
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
st->codec->width*st->sample_aspect_ratio.num,
st->codec->height*st->sample_aspect_ratio.den,
1024*1024);
av_log(NULL, AV_LOG_INFO, ", PAR %d:%d DAR %d:%d",
st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
display_aspect_ratio.num, display_aspect_ratio.den);
}
if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
if(st->avg_frame_rate.den && st->avg_frame_rate.num)
print_fps(av_q2d(st->avg_frame_rate), "fps");
if(st->r_frame_rate.den && st->r_frame_rate.num)
print_fps(av_q2d(st->r_frame_rate), "tbr");
if(st->time_base.den && st->time_base.num)
print_fps(1/av_q2d(st->time_base), "tbn");
if(st->codec->time_base.den && st->codec->time_base.num)
print_fps(1/av_q2d(st->codec->time_base), "tbc");
}
if (st->disposition & AV_DISPOSITION_DEFAULT)
av_log(NULL, AV_LOG_INFO, " (default)");
if (st->disposition & AV_DISPOSITION_DUB)
av_log(NULL, AV_LOG_INFO, " (dub)");
if (st->disposition & AV_DISPOSITION_ORIGINAL)
av_log(NULL, AV_LOG_INFO, " (original)");
if (st->disposition & AV_DISPOSITION_COMMENT)
av_log(NULL, AV_LOG_INFO, " (comment)");
if (st->disposition & AV_DISPOSITION_LYRICS)
av_log(NULL, AV_LOG_INFO, " (lyrics)");
if (st->disposition & AV_DISPOSITION_KARAOKE)
av_log(NULL, AV_LOG_INFO, " (karaoke)");
if (st->disposition & AV_DISPOSITION_FORCED)
av_log(NULL, AV_LOG_INFO, " (forced)");
if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
av_log(NULL, AV_LOG_INFO, " (hearing impaired)");
if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
av_log(NULL, AV_LOG_INFO, " (visual impaired)");
if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
av_log(NULL, AV_LOG_INFO, " (clean effects)");
av_log(NULL, AV_LOG_INFO, "\n");
dump_metadata(NULL, st->metadata, " ");
}*/
void AVDemuxer::dump()
{
av_dump_format(format_context, 0, qPrintable(_file_name), false);
fflush(0);
qDebug("[AVFormatContext::duration = %lld]", duration());
qDebug("video format: %s [%s]", qPrintable(videoFormatName()), qPrintable(videoFormatLongName()));
qDebug("Audio: %s [%s]", qPrintable(audioCodecName()), qPrintable(audioCodecLongName()));
if (a_codec_context)
qDebug("sample rate: %d, channels: %d", a_codec_context->sample_rate, a_codec_context->channels);
struct stream_info {
int index;
AVCodecContext* ctx;
const char* name;
};
stream_info stream_infos[] = {
{audioStream(), a_codec_context, "audio stream"}
, {videoStream(), v_codec_context, "video_stream"}
, {0, 0, 0}
};
AVStream *stream = 0;
for (int idx = 0; stream_infos[idx].name != 0; ++idx) {
qDebug("%s: %d", stream_infos[idx].name, stream_infos[idx].index);
if (stream_infos[idx].index < 0 || !(stream = format_context->streams[idx])) {
qDebug("stream not available: index = %d, stream = %p", stream_infos[idx].index, stream);
continue;
}
//why not fixed for video without audio?
//qDebug("[AVStream::start_time = %lld]", stream->start_time);
AVCodecContext *ctx = stream_infos[idx].ctx;
if (ctx) {
qDebug("[AVCodecContext::time_base = %d / %d = %f]", ctx->time_base.num, ctx->time_base.den, av_q2d(ctx->time_base));
}
////why avg_frame_rate is not fixed for the same video?
//qDebug("[AVStream::avg_frame_rate = %d / %d = %f]", stream->avg_frame_rate.num, stream->avg_frame_rate.den, av_q2d(stream->avg_frame_rate));
//qDebug("[AVStream::time_base = %d / %d = %f]", stream->time_base.num, stream->time_base.den, av_q2d(stream->time_base));
}
}
bool AVDemuxer::readFrame()
{
QMutexLocker lock(&mutex);
Q_UNUSED(lock);
AVPacket packet;
//start timeout timer and timeout
__interrupt_timer.start();
int ret = av_read_frame(format_context, &packet); //0: ok, <0: error/end
//invalidate the timer
__interrupt_timer.invalidate();
if (ret != 0) {
if (ret == AVERROR_EOF) { //end of file. FIXME: why no eof if replaying by seek(0)?
if (!eof) {
eof = true;
started_ = false;
pkt->markEnd();
qDebug("End of file. %s %d", __FUNCTION__, __LINE__);
emit finished();
return true;
}
//pkt->data = QByteArray(); //flush
//return true;
return false; //frames after eof are eof frames
} else if (ret == AVERROR_INVALIDDATA) {
qWarning("AVERROR_INVALIDDATA");
}
qWarning("[AVDemuxer] error: %s", av_err2str(ret));
return false;
}
stream_idx = packet.stream_index; //TODO: check index
//check whether the 1st frame is alreay got. emit only once
if (!started_ && v_codec_context && v_codec_context->frame_number == 0) {
started_ = true;
emit started();
} else if (!started_ && a_codec_context && a_codec_context->frame_number == 0) {
started_ = true;
emit started();
}
if (stream_idx != videoStream() && stream_idx != audioStream()) {
//qWarning("[AVDemuxer] unknown stream index: %d", stream_idx);
return false;
}
pkt->data = QByteArray((const char*)packet.data, packet.size);
pkt->duration = packet.duration;
//if (packet.dts == AV_NOPTS_VALUE && )
if (packet.dts != AV_NOPTS_VALUE) //has B-frames
pkt->pts = packet.dts;
else if (packet.pts != AV_NOPTS_VALUE)
pkt->pts = packet.pts;
else
pkt->pts = 0;
AVStream *stream = format_context->streams[stream_idx];
pkt->pts *= av_q2d(stream->time_base);
if (stream->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
&& (packet.flags & AV_PKT_FLAG_KEY)
&& packet.convergence_duration != AV_NOPTS_VALUE)
pkt->duration = packet.convergence_duration * av_q2d(stream->time_base);
else if (packet.duration > 0)
pkt->duration = packet.duration * av_q2d(stream->time_base);
else
pkt->duration = 0;
//qDebug("AVPacket.pts=%f, duration=%f, dts=%lld", pkt->pts, pkt->duration, packet.dts);
av_free_packet(&packet); //important!
return true;
}
