static av_cold int read_header(AVFormatContext *ctx)
{
CDIOContext *s = ctx->priv_data;
AVStream *st;
int ret, i;
char *err = NULL;
if (!(st = avformat_new_stream(ctx, NULL)))
return AVERROR(ENOMEM);
s->drive = cdio_cddap_identify(ctx->filename, CDDA_MESSAGE_LOGIT, &err);
if (!s->drive) {
av_log(ctx, AV_LOG_ERROR, "Could not open drive %s.\n", ctx->filename);
return AVERROR(EINVAL);
}
if (err) {
av_log(ctx, AV_LOG_VERBOSE, "%s\n", err);
free(err);
}
if ((ret = cdio_cddap_open(s->drive)) < 0 || !s->drive->opened) {
av_log(ctx, AV_LOG_ERROR, "Could not open disk in drive %s.\n", ctx->filename);
return AVERROR(EINVAL);
}
cdio_cddap_verbose_set(s->drive, CDDA_MESSAGE_LOGIT, CDDA_MESSAGE_LOGIT);
if (s->speed)
cdio_cddap_speed_set(s->drive, s->speed);
s->paranoia = cdio_paranoia_init(s->drive);
if (!s->paranoia) {
av_log(ctx, AV_LOG_ERROR, "Could not init paranoia.\n");
return AVERROR(EINVAL);
}
cdio_paranoia_modeset(s->paranoia, s->paranoia_mode);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
if (s->drive->bigendianp)
st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
else
st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
st->codec->sample_rate = 44100;
st->codec->channels = 2;
if (s->drive->audio_last_sector != CDIO_INVALID_LSN &&
s->drive->audio_first_sector != CDIO_INVALID_LSN)
st->duration = s->drive->audio_last_sector - s->drive->audio_first_sector;
else if (s->drive->tracks)
st->duration = s->drive->disc_toc[s->drive->tracks].dwStartSector;
avpriv_set_pts_info(st, 64, CDIO_CD_FRAMESIZE_RAW, 2*st->codec->channels*st->codec->sample_rate);
for (i = 0; i < s->drive->tracks; i++) {
char title[16];
snprintf(title, sizeof(title), "track %02d", s->drive->disc_toc[i].bTrack);
avpriv_new_chapter(ctx, i, st->time_base, s->drive->disc_toc[i].dwStartSector,
s->drive->disc_toc[i+1].dwStartSector, title);
}
s->last_sector = cdio_cddap_disc_lastsector(s->drive);
return 0;
}
int GetLength() {
return cdio_cddap_disc_lastsector(d)/FRAMES_PER_SEC;
}
static PyObject*
CDDA_last_sector(cdio_CDDAObject* self, PyObject *args)
{
return Py_BuildValue("i", cdio_cddap_disc_lastsector(self->cdrom_drive));
}