static int dv_write_header(AVFormatContext *s)
{
DVMuxContext *c = s->priv_data;
if (!dv_init_mux(s)) {
av_log(s, AV_LOG_ERROR, "Can't initialize DV format!\n"
"Make sure that you supply exactly two streams:\n"
" video: 25fps or 29.97fps, audio: 2ch/48kHz/PCM BigEndian\n"
" (50Mbps allows an optional second audio stream)\n");
return -1;
}
// default to drop frame timecode for 29.97 fps
if (c->sys->time_base.den == 30000 && c->sys->time_base.num == 1001)
c->timecode_drop_frame = 1;
if (c->timecode) {
int drop, framenum;
framenum = ff_timecode_to_framenum(c->timecode, c->sys->time_base, &drop);
if (framenum < 0) {
if (framenum == -1)
av_log(s, AV_LOG_ERROR, "error parsing timecode, syntax: 00:00:00[;:]00\n");
else if (framenum == -2)
av_log(s, AV_LOG_ERROR, "error, unsupported fps for timecode\n");
else if (framenum == -3)
av_log(s, AV_LOG_ERROR, "error, drop frame is only allowed with "
"30000/1001 or 60000/1001 fps\n");
return -1;
}
c->timecode_start = framenum;
c->timecode_drop_frame = drop;
}
return 0;
}
static int dv_write_header(AVFormatContext *s)
{
if (!dv_init_mux(s)) {
av_log(s, AV_LOG_ERROR, "Can't initialize DV format!\n"
"Make sure that you supply exactly two streams:\n"
" video: 25fps or 29.97fps, audio: 2ch/48Khz/PCM\n"
" (50Mbps allows an optional second audio stream)\n");
return -1;
}
return 0;
}
