/*
* ISO Media common code
- * copyright (c) 2001 Fabrice Bellard.
+ * copyright (c) 2001 Fabrice Bellard
* copyright (c) 2002 Francois Revol <revol@free.fr>
* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
*
#ifndef AVFORMAT_ISOM_H
#define AVFORMAT_ISOM_H
+#include "avio.h"
#include "riff.h"
+#include "dv.h"
/* isom.c */
extern const AVCodecTag ff_mp4_obj_type[];
extern const AVCodecTag codec_movaudio_tags[];
extern const AVCodecTag ff_codec_movsubtitle_tags[];
-int ff_mov_iso639_to_lang(const char *lang, int mp4);
-int ff_mov_lang_to_iso639(int code, char *to);
+int ff_mov_iso639_to_lang(const char lang[4], int mp4);
+int ff_mov_lang_to_iso639(unsigned code, char to[4]);
+
+/* the QuickTime file format is quite convoluted...
+ * it has lots of index tables, each indexing something in another one...
+ * Here we just use what is needed to read the chunks
+ */
typedef struct {
int count;
int duration;
} MOVStts;
+typedef struct {
+ int first;
+ int count;
+ int id;
+} MOVStsc;
+
+typedef struct {
+ uint32_t type;
+ char *path;
+ char *dir;
+ char volume[28];
+ char filename[64];
+ int16_t nlvl_to, nlvl_from;
+} MOVDref;
+
+typedef struct {
+ uint32_t type;
+ int64_t size; /* total size (excluding the size and type fields) */
+} MOVAtom;
+
+struct MOVParseTableEntry;
+
+typedef struct {
+ unsigned track_id;
+ uint64_t base_data_offset;
+ uint64_t moof_offset;
+ unsigned stsd_id;
+ unsigned duration;
+ unsigned size;
+ unsigned flags;
+} MOVFragment;
+
+typedef struct {
+ unsigned track_id;
+ unsigned stsd_id;
+ unsigned duration;
+ unsigned size;
+ unsigned flags;
+} MOVTrackExt;
+
+typedef struct MOVStreamContext {
+ ByteIOContext *pb;
+ int ffindex; ///< AVStream index
+ int next_chunk;
+ unsigned int chunk_count;
+ int64_t *chunk_offsets;
+ unsigned int stts_count;
+ MOVStts *stts_data;
+ unsigned int ctts_count;
+ MOVStts *ctts_data;
+ unsigned int stsc_count;
+ MOVStsc *stsc_data;
+ unsigned int stps_count;
+ unsigned *stps_data; ///< partial sync sample for mpeg-2 open gop
+ int ctts_index;
+ int ctts_sample;
+ unsigned int sample_size;
+ unsigned int sample_count;
+ int *sample_sizes;
+ unsigned int keyframe_count;
+ int *keyframes;
+ int time_scale;
+ int time_offset; ///< time offset of the first edit list entry
+ int current_sample;
+ unsigned int bytes_per_frame;
+ unsigned int samples_per_frame;
+ int dv_audio_container;
+ int pseudo_stream_id; ///< -1 means demux all ids
+ int16_t audio_cid; ///< stsd audio compression id
+ unsigned drefs_count;
+ MOVDref *drefs;
+ int dref_id;
+ int wrong_dts; ///< dts are wrong due to huge ctts offset (iMovie files)
+ int width; ///< tkhd width
+ int height; ///< tkhd height
+ int dts_shift; ///< dts shift when ctts is negative
+} MOVStreamContext;
+
+typedef struct MOVContext {
+ AVFormatContext *fc;
+ int time_scale;
+ int64_t duration; ///< duration of the longest track
+ int found_moov; ///< 'moov' atom has been found
+ int found_mdat; ///< 'mdat' atom has been found
+ DVDemuxContext *dv_demux;
+ AVFormatContext *dv_fctx;
+ int isom; ///< 1 if file is ISO Media (mp4/3gp)
+ MOVFragment fragment; ///< current fragment in moof atom
+ MOVTrackExt *trex_data;
+ unsigned trex_count;
+ int itunes_metadata; ///< metadata are itunes style
+} MOVContext;
+
+int ff_mp4_read_descr_len(ByteIOContext *pb);
+int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom);
+enum CodecID ff_mov_get_lpcm_codec_id(int bps, int flags);
+
#endif /* AVFORMAT_ISOM_H */