static off_t input_avio_seek_time (input_plugin_t *this_gen, int time_offset, int origin) {
avio_input_plugin_t *this = (avio_input_plugin_t *) this_gen;
if (origin == SEEK_SET && this->pb && this->pb->seekable) {
int64_t ts = (int64_t)time_offset * AV_TIME_BASE / 1000;
off_t result = avio_seek_time(this->pb, -1, ts, 0);
if (result >= 0) {
this->preview_size = 0;
this->curpos = result;
return this->curpos;
}
}
return -1;
}
static int control(stream_t *s, int cmd, void *arg)
{
AVIOContext *avio = s->priv;
int64_t size, ts;
double pts;
switch(cmd) {
case STREAM_CTRL_GET_SIZE:
size = avio_size(avio);
if(size >= 0) {
*(off_t *)arg = size;
return 1;
}
break;
case STREAM_CTRL_SEEK_TO_TIME:
pts = *(double *)arg;
ts = pts * AV_TIME_BASE;
ts = avio_seek_time(avio, -1, ts, 0);
if (ts >= 0)
return 1;
break;
}
return STREAM_UNSUPPORTED;
}