-/**
- * Libmp4ff function to reposition the file to the given sample.
- *
- * \param f The opaque handle returned by mp4ff_open_read().
- * \param track The number of the (audio) track.
- * \param sample Destination.
- *
- * We need this function to obtain the offset of the sample within the audio
- * file. Unfortunately, it is not exposed in the mp4ff header.
- *
- * \return This function always returns 0.
- */
-int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample);
-
-static int aac_afh_get_chunk(long unsigned chunk_num, void *afh_context,
- const char **buf, size_t *len)
+static int aac_afh_get_chunk(uint32_t chunk_num, void *afh_context,
+ const char **buf, uint32_t *len)