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buffer: re-enable _span offset calculations

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when we _span two complete buffers, we can copy offsets and timestamps.
This commit is contained in:
Wim Taymans 2012-03-27 15:16:55 +02:00
parent a080b81808
commit a137002ef1
1 changed files with 7 additions and 9 deletions
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16
gst/gstbuffer.c
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@ -1445,19 +1445,19 @@ gst_buffer_span (GstBuffer * buf1, gsize offset, GstBuffer * buf2, gsize size)
GstBuffer *newbuf;
GstMemory *span;
GstMemory **mem[2];
gsize len[2], len1, len2;
gsize len[2], size1, size2;
g_return_val_if_fail (GST_IS_BUFFER (buf1), NULL);
g_return_val_if_fail (GST_IS_BUFFER (buf2), NULL);
g_return_val_if_fail (buf1->mini_object.refcount > 0, NULL);
g_return_val_if_fail (buf2->mini_object.refcount > 0, NULL);
len1 = gst_buffer_get_size (buf1);
len2 = gst_buffer_get_size (buf2);
g_return_val_if_fail (len1 + len2 > offset, NULL);
size1 = gst_buffer_get_size (buf1);
size2 = gst_buffer_get_size (buf2);
g_return_val_if_fail (size1 + size2 > offset, NULL);
if (size == -1)
size = len1 + len2 - offset;
size = size1 + size2 - offset;
else
g_return_val_if_fail (size <= len1 + len2 - offset, NULL);
g_return_val_if_fail (size <= size1 + size2 - offset, NULL);
mem[0] = GST_BUFFER_MEM_ARRAY (buf1);
len[0] = GST_BUFFER_MEM_LEN (buf1);
@ -1469,7 +1469,6 @@ gst_buffer_span (GstBuffer * buf1, gsize offset, GstBuffer * buf2, gsize size)
newbuf = gst_buffer_new ();
_memory_add (newbuf, -1, span);
#if 0
/* if the offset is 0, the new buffer has the same timestamp as buf1 */
if (offset == 0) {
GST_BUFFER_OFFSET (newbuf) = GST_BUFFER_OFFSET (buf1);
@ -1479,7 +1478,7 @@ gst_buffer_span (GstBuffer * buf1, gsize offset, GstBuffer * buf2, gsize size)
/* if we completely merged the two buffers (appended), we can
* calculate the duration too. Also make sure we's not messing with
* invalid DURATIONS */
if (buf1->size + buf2->size == len) {
if (size1 + size2 == size) {
if (GST_BUFFER_DURATION_IS_VALID (buf1) &&
GST_BUFFER_DURATION_IS_VALID (buf2)) {
/* add duration */
@ -1492,7 +1491,6 @@ gst_buffer_span (GstBuffer * buf1, gsize offset, GstBuffer * buf2, gsize size)
}
}
}
#endif
return newbuf;
}