bool FFmpegDecoder::readNextPacketNormal()
{
AVPacket packet;
if (! m_pending_packet)
{
bool end_of_stream = false;
// Read the next frame packet
if (av_read_frame(m_format_context.get(), &packet) < 0)
{
if (url_ferror(m_format_context->pb) == 0)
end_of_stream = true;
else
throw std::runtime_error("av_read_frame() failed");
}
if (end_of_stream)
{
// If we reach the end of the stream, change the decoder state
if (loop())
{
m_clocks.reset(m_start);
rewindButDontFlushQueues();
}
else
m_state = END_OF_STREAM;
return false;
}
else
{
// Make the packet data available beyond av_read_frame() logical scope.
if (av_dup_packet(&packet) < 0)
throw std::runtime_error("av_dup_packet() failed");
m_pending_packet = FFmpegPacket(packet);
}
}
// Send data packet
if (m_pending_packet.type == FFmpegPacket::PACKET_DATA)
{
if (m_pending_packet.packet.stream_index == m_audio_index)
{
if (m_audio_queue.timedPush(m_pending_packet, 10)) {
m_pending_packet.release();
return true;
}
}
else if (m_pending_packet.packet.stream_index == m_video_index)
{
if (m_video_queue.timedPush(m_pending_packet, 10)) {
m_pending_packet.release();
return true;
}
}
else
{
m_pending_packet.clear();
return true;
}
}
return false;
}
bool FFmpegDecoder::readNextPacketNormal()
{
AVPacket packet;
if (! m_pending_packet)
{
bool end_of_stream = false;
// Read the next frame packet
int error = av_read_frame(m_format_context.get(), &packet);
if (error < 0)
{
if (error == static_cast<int>(AVERROR_EOF) ||
m_format_context.get()->pb->eof_reached)
end_of_stream = true;
else {
OSG_FATAL << "av_read_frame() returned " << AvStrError(error) << std::endl;
throw std::runtime_error("av_read_frame() failed");
}
}
if (end_of_stream)
{
// If we reach the end of the stream, change the decoder state
if (loop())
{
m_clocks.reset(m_start);
rewindButDontFlushQueues();
}
else
m_state = END_OF_STREAM;
return false;
}
else
{
// Make the packet data available beyond av_read_frame() logical scope.
if ((error = av_dup_packet(&packet)) < 0) {
OSG_FATAL << "av_dup_packet() returned " << AvStrError(error) << std::endl;
throw std::runtime_error("av_dup_packet() failed");
}
m_pending_packet = FFmpegPacket(packet);
}
}
// Send data packet
if (m_pending_packet.type == FFmpegPacket::PACKET_DATA)
{
if (m_pending_packet.packet.stream_index == m_audio_index)
{
if (m_audio_queue.timedPush(m_pending_packet, 10)) {
m_pending_packet.release();
return true;
}
}
else if (m_pending_packet.packet.stream_index == m_video_index)
{
if (m_video_queue.timedPush(m_pending_packet, 10)) {
m_pending_packet.release();
return true;
}
}
else
{
m_pending_packet.clear();
return true;
}
}
return false;
}
