static int mmf_write_trailer(AVFormatContext *s)
{
ByteIOContext *pb = s->pb;
MMFContext *mmf = s->priv_data;
offset_t pos, size;
int gatetime;
if (!url_is_streamed(s->pb)) {
/* Fill in length fields */
end_tag_be(pb, mmf->awapos);
end_tag_be(pb, mmf->atrpos);
end_tag_be(pb, 8);
pos = url_ftell(pb);
size = pos - mmf->awapos;
/* Fill Atsq chunk */
url_fseek(pb, mmf->atsqpos, SEEK_SET);
/* "play wav" */
put_byte(pb, 0); /* start time */
put_byte(pb, 1); /* (channel << 6) | wavenum */
gatetime = size * 500 / s->streams[0]->codec->sample_rate;
put_varlength(pb, gatetime); /* duration */
/* "nop" */
put_varlength(pb, gatetime); /* start time */
put_buffer(pb, "\xff\x00", 2); /* nop */
/* "end of sequence" */
put_buffer(pb, "\x00\x00\x00\x00", 4);
url_fseek(pb, pos, SEEK_SET);
put_flush_packet(pb);
}
return 0;
}
static int mmf_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
MMFContext *mmf = s->priv_data;
int64_t pos, size;
int gatetime;
if (s->pb->seekable) {
/* Fill in length fields */
end_tag_be(pb, mmf->awapos);
end_tag_be(pb, mmf->atrpos);
end_tag_be(pb, 8);
pos = avio_tell(pb);
size = pos - mmf->awapos;
/* Fill Atsq chunk */
avio_seek(pb, mmf->atsqpos, SEEK_SET);
/* "play wav" */
avio_w8(pb, 0); /* start time */
avio_w8(pb, 1); /* (channel << 6) | wavenum */
gatetime = size * 500 / s->streams[0]->codec->sample_rate;
put_varlength(pb, gatetime); /* duration */
/* "nop" */
put_varlength(pb, gatetime); /* start time */
avio_write(pb, "\xff\x00", 2); /* nop */
/* "end of sequence" */
avio_write(pb, "\x00\x00\x00\x00", 4);
avio_seek(pb, pos, SEEK_SET);
avio_flush(pb);
}
return 0;
}
