RMMuxContext *rm = ctx->priv_data;
AVIOContext *s = ctx->pb;
StreamInfo *stream;
- unsigned char *data_offset_ptr, *start_ptr;
const char *desc, *mimetype;
int nb_packets, packet_total_size, packet_max_size, size, packet_avg_size, i;
- int bit_rate, v, duration, flags, data_pos;
+ int bit_rate, v, duration, flags;
+ int data_offset;
AVDictionaryEntry *tag;
- start_ptr = s->buf_ptr;
-
ffio_wfourcc(s, ".RMF");
avio_wb32(s,18); /* header size */
avio_wb16(s,0);
avio_wb32(s, BUFFER_DURATION); /* preroll */
avio_wb32(s, index_pos); /* index offset */
/* computation of data the data offset */
- data_offset_ptr = s->buf_ptr;
+ data_offset = avio_tell(s);
avio_wb32(s, 0); /* data offset : will be patched after */
avio_wb16(s, ctx->nb_streams); /* num streams */
flags = 1 | 2; /* save allowed & perfect play */
}
/* patch data offset field */
- data_pos = s->buf_ptr - start_ptr;
- rm->data_pos = data_pos;
- data_offset_ptr[0] = data_pos >> 24;
- data_offset_ptr[1] = data_pos >> 16;
- data_offset_ptr[2] = data_pos >> 8;
- data_offset_ptr[3] = data_pos;
+ rm->data_pos = avio_tell(s);
+ if (avio_seek(s, data_offset, SEEK_SET) >= 0) {
+ avio_wb32(s, rm->data_pos);
+ avio_seek(s, rm->data_pos, SEEK_SET);
+ }
/* data stream */
ffio_wfourcc(s, "DATA");