void mov_reader_test(const char* mp4)
{
s_vfp = fopen("v.h264", "wb");
s_afp = fopen("a.aac", "wb");
void* mov = mov_reader_create(mp4);
mov_reader_getinfo(mov, mov_video_info, mov_audio_info, NULL);
while (mov_reader_read(mov, s_buffer, sizeof(s_buffer), onread, NULL) > 0)
{
}
mov_reader_destroy(mov);
fclose(s_vfp);
fclose(s_afp);
}
int MP4FileSource::Play()
{
bool sendframe = false;
if (3 == m_status)
return 0;
SEND_PACKET:
if (0 == m_frame.bytes)
{
int r = mov_reader_read(m_reader, m_frame.buffer, sizeof(m_frame.buffer), MP4OnRead, &m_frame);
if (r == 0)
{
// 0-EOF
m_status = 3;
SendBye();
return r;
}
else if (r < 0)
{
// error
return r;
}
}
m_status = 1;
uint64_t clock = system_clock();
for (int i = 0; i < m_count; i++)
{
struct media_t* m = &m_media[i];
if (m->track != m_frame.track)
continue;
if (0 == m_clock || m_clock > clock)
m_clock = clock;
if (-1 == m_dts)
m_dts = m_frame.dts;
if (int64_t(clock - m_clock) + m_dts >= m_frame.dts)
{
if (0 == strcmp("H264", m->name))
{
// MPEG4 -> H.264 byte stream
uint8_t* p = m_frame.buffer;
size_t bytes = m_frame.bytes;
while (bytes > 0)
{
// nalu size -> start code
assert(bytes > 4);
uint32_t n = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
p[0] = 0;
p[1] = 0;
p[2] = 0;
p[3] = 1;
bytes -= n + 4;
p += n + 4;
}
//printf("[V] pts: %lld, dts: %lld, clock: %llu\n", m_frame.pts, m_frame.dts, clock);
}
else if (0 == strcmp("MP4A-LATM", m->name) || 0 == strcmp("MPEG4-GENERIC", m->name))
{
// add ADTS header
//printf("[A] pts: %lld, dts: %lld, clock: %llu\n", m_frame.pts, m_frame.dts, clock);
}
else
{
assert(0);
}
if (-1 == m->dts_first)
m->dts_first = m_frame.pts;
m->dts_last = m_frame.pts;
uint32_t timestamp = m->timestamp + m->dts_last - m->dts_first;
/*
if (-1 == m->dts)
m->dts = m_frame.dts;
m->timestamp += m_frame.dts - m->dts;
m->dts = m_frame.dts;
*/
rtp_payload_encode_input(m->packer, m_frame.buffer, m_frame.bytes, (uint32_t)(timestamp * (m->frequency / 1000) /*kHz*/));
SendRTCP(m, clock);
m_frame.bytes = 0; // send flag
sendframe = 1;
goto SEND_PACKET;
}
break;
}
return sendframe ? 1 : 0;
}