Reads a single chunk.
| element |
caller element (used for debugging). |
| buf |
input buffer. |
| offset |
offset in the buffer in the caller. Is incremented by the read size by this function. |
| fourcc |
fourcc (returned by this function0 of the chunk. |
| chunk_data |
buffer (returned by the function) containing the chunk data, which may be NULL if chunksize == 0 |
|
FALSE on error, TRUE otherwise |