Get @length memory blocks in @buffer starting at @idx. The memory blocks will be merged into one large #GstMemory.
If @length is -1, all memory starting from @idx is merged.
an index
a length
a #GstMemory that contains the merged data of @length blocks starting at @idx. Use gst_memory_unref () after usage.
See Implementation
Get @length memory blocks in @buffer starting at @idx. The memory blocks will be merged into one large #GstMemory.
If @length is -1, all memory starting from @idx is merged.