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bypass internal buffer for "large" packets 

Originally committed as revision 4080 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-03-24 22:07:54 +00:00
parent d46db490b1
commit 3e2b6358e0
1 changed files with 22 additions and 4 deletions
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26
libavformat/aviobuf.c
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@ -333,10 +333,28 @@ int get_buffer(ByteIOContext *s, unsigned char *buf, int size)
if (len > size)
len = size;
if (len == 0) {
fill_buffer(s);
len = s->buf_end - s->buf_ptr;
if (len == 0)
break;
if(size > s->buffer_size && !s->update_checksum){
len = s->read_packet(s->opaque, buf, size);
if (len <= 0) {
/* do not modify buffer if EOF reached so that a seek back can
be done without rereading data */
s->eof_reached = 1;
if(len<0)
s->error= len;
break;
} else {
s->pos += len;
size -= len;
buf += len;
s->buf_ptr = s->buffer;
s->buf_end = s->buffer/* + len*/;
}
}else{
fill_buffer(s);
len = s->buf_end - s->buf_ptr;
if (len == 0)
break;
}
} else {
memcpy(buf, s->buf_ptr, len);
buf += len;