-typedef struct
-{
+struct mp4_callback {
uint32_t (*read)(void *user_data, void *buffer, uint32_t length);
uint32_t (*write)(void *udata, void *buffer, uint32_t length);
uint32_t (*seek)(void *user_data, uint64_t position);
uint32_t (*truncate)(void *user_data);
void *user_data;
- uint32_t read_error;
-} mp4ff_callback_t;
+};
-typedef struct
-{
- int32_t type;
- int32_t channelCount;
- int32_t sampleSize;
- uint16_t sampleRate;
- int32_t audioType;
-
- /* stsd */
- int32_t stsd_entry_count;
-
- /* stsz */
- int32_t stsz_sample_size;
- int32_t stsz_sample_count;
- int32_t *stsz_table;
-
- /* stts */
- int32_t stts_entry_count;
- int32_t *stts_sample_count;
- int32_t *stts_sample_delta;
-
- /* stsc */
- int32_t stsc_entry_count;
- int32_t *stsc_first_chunk;
- int32_t *stsc_samples_per_chunk;
- int32_t *stsc_sample_desc_index;
-
- /* stsc */
- int32_t stco_entry_count;
- int32_t *stco_chunk_offset;
-
- /* ctts */
- int32_t ctts_entry_count;
- int32_t *ctts_sample_count;
- int32_t *ctts_sample_offset;
-
- /* esde */
- uint8_t *decoderConfig;
- int32_t decoderConfigLen;
-
- uint32_t maxBitrate;
- uint32_t avgBitrate;
-
- uint32_t timeScale;
- uint64_t duration;
-
-} mp4ff_track_t;
-
-#define MAX_TRACKS 1024
-
-typedef struct
-{
+struct mp4_tag {
char *item;
char *value;
uint32_t len;
-} mp4ff_tag_t;
+};
-typedef struct
-{
- mp4ff_tag_t *tags;
+struct mp4_metadata {
+ struct mp4_tag *tags;
uint32_t count;
-} mp4ff_metadata_t;
-
-/* mp4 main file structure */
-typedef struct
-{
- /* stream to read from */
- mp4ff_callback_t *stream;
- int64_t current_position;
-
- int32_t moov_read;
- uint64_t moov_offset;
- uint64_t moov_size;
- uint8_t last_atom;
- uint64_t file_size;
- uint32_t error;
-
- /* mvhd */
- int32_t time_scale;
- int32_t duration;
-
- /* incremental track index while reading the file */
- int32_t total_tracks;
-
- /* track data */
- mp4ff_track_t *track[MAX_TRACKS];
-
- /* metadata */
- mp4ff_metadata_t tags;
-} mp4ff_t;
-
-void mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample);
-int32_t mp4ff_total_tracks(const mp4ff_t *f);
-void mp4ff_get_decoder_config(const mp4ff_t *f, const int track,
- unsigned char** ppBuf, unsigned int* pBufSize);
-mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f);
-void mp4ff_close(mp4ff_t *f);
-int32_t mp4ff_get_sample_size(const mp4ff_t *f, int track, int sample);
-uint32_t mp4ff_get_sample_rate(const mp4ff_t *f, const int32_t track);
-uint32_t mp4ff_get_channel_count(const mp4ff_t * f,const int32_t track);
-int32_t mp4ff_num_samples(const mp4ff_t *f, const int track);
-mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t *f);
-
-int mp4ff_meta_get_by_index(const mp4ff_t *f, unsigned int index,
+};
+
+struct mp4; /* opaque */
+
+void mp4_set_sample_position(struct mp4 *f, int32_t track, int32_t sample);
+int32_t mp4_total_tracks(const struct mp4 *f);
+bool mp4_is_audio_track(const struct mp4 *f, int32_t track);
+struct mp4 *mp4_open_read(struct mp4_callback *cb);
+void mp4_close(struct mp4 *f);
+int32_t mp4_get_sample_size(const struct mp4 *f, int track, int sample);
+uint32_t mp4_get_sample_rate(const struct mp4 *f, int32_t track);
+uint32_t mp4_get_channel_count(const struct mp4 * f, int32_t track);
+int32_t mp4_num_samples(const struct mp4 *f, int track);
+uint64_t mp4_get_duration(const struct mp4 *f, int32_t track);
+struct mp4 *mp4_open_meta(struct mp4_callback *cb);
+
+int mp4_meta_get_by_index(const struct mp4 *f, unsigned int index,
char **item, char **value);
-int32_t mp4ff_meta_update(mp4ff_callback_t *f,const mp4ff_metadata_t * data);
-
-int mp4ff_meta_get_num_items(const mp4ff_t *f);
-int mp4ff_meta_get_artist(const mp4ff_t *f, char **value);
-int mp4ff_meta_get_title(const mp4ff_t *f, char **value);
-int mp4ff_meta_get_date(const mp4ff_t *f, char **value);
-int mp4ff_meta_get_album(const mp4ff_t *f, char **value);
-int mp4ff_meta_get_comment(const mp4ff_t *f, char **value);
+int32_t mp4_meta_update(struct mp4_callback *cb, const struct mp4_metadata *data);
+
+int mp4_meta_get_num_items(const struct mp4 *f);
+int mp4_meta_get_artist(const struct mp4 *f, char **value);
+int mp4_meta_get_title(const struct mp4 *f, char **value);
+int mp4_meta_get_date(const struct mp4 *f, char **value);
+int mp4_meta_get_album(const struct mp4 *f, char **value);
+int mp4_meta_get_comment(const struct mp4 *f, char **value);