static int processSkeleton(oggz_packet *packet, long serialno)
{
float timestamp = oggz_tell_units(oggz) / 1000.0;
float keyframeTimestamp = calc_keyframe_timestamp(packet, serialno);
if (skeletonStream == serialno) {
int ret = oggskel_decode_header(skeleton, &packet->op);
if (ret < 0) {
printf("Error processing skeleton packet: %d\n", ret);
return OGGZ_STOP_ERR;
}
if (packet->op.e_o_s) {
skeletonHeadersComplete = 1;
appState = STATE_DECODING;
ogvjs_callback_loaded_metadata(videoCodecName, audioCodecName);
}
}
if (serialno == videoStream) {
ogvjs_callback_video_packet((const char *)packet->op.packet, packet->op.bytes, timestamp, keyframeTimestamp);
}
if (serialno == audioStream) {
ogvjs_callback_audio_packet((const char *)packet->op.packet, packet->op.bytes, timestamp);
}
return OGGZ_CONTINUE;
}
static int processDecoding(oggz_packet *packet, long serialno) {
float timestamp = oggz_tell_units(oggz) / 1000.0;
float keyframeTimestamp = calc_keyframe_timestamp(packet, serialno);
if (serialno == videoStream) {
ogvjs_callback_video_packet((const char *)packet->op.packet, packet->op.bytes, timestamp, keyframeTimestamp);
return OGGZ_STOP_OK;
}
if (serialno == audioStream) {
ogvjs_callback_audio_packet((const char *)packet->op.packet, packet->op.bytes, timestamp);
return OGGZ_STOP_OK;
}
return OGGZ_CONTINUE;
}
int
main (int argc, char ** argv)
{
FILE * f;
OGGZ * oggz;
long n;
ogg_int64_t units;
if (argc < 2) {
printf ("usage: %s filename\n", argv[0]);
}
if ((f = fopen ((char *)argv[1], "rb")) == NULL) {
printf ("unable to open file %s\n", argv[1]);
exit (1);
}
if ((oggz = oggz_new (OGGZ_READ | OGGZ_AUTO)) == NULL) {
printf ("unable to create oggz\n");
exit (1);
}
oggz_io_set_read (oggz, my_io_read, f);
oggz_io_set_seek (oggz, my_io_seek, f);
oggz_io_set_tell (oggz, my_io_tell, f);
oggz_set_read_callback (oggz, -1, read_packet, NULL);
while ((n = oggz_read (oggz, 1024)) > 0);
units = oggz_tell_units (oggz);
printf ("Total length: %" PRId64 " ms\n", units);
oggz_seek_units (oggz, units/2, SEEK_SET);
printf ("seeked to byte offset %" PRId64 "\n", oggz_tell (oggz));
while ((n = oggz_read (oggz, 1024)) > 0);
oggz_close (oggz);
exit (0);
}