* copyright (c) 2002 Francois Revol <revol@free.fr>
* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define AVFORMAT_ISOM_H
#include "avio.h"
-#include "riff.h"
+#include "internal.h"
#include "dv.h"
/* isom.c */
extern const AVCodecTag ff_mp4_obj_type[];
-extern const AVCodecTag codec_movvideo_tags[];
-extern const AVCodecTag codec_movaudio_tags[];
+extern const AVCodecTag ff_codec_movvideo_tags[];
+extern const AVCodecTag ff_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(unsigned 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...
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 offset;
int64_t size; /* total size (excluding the size and type fields) */
} MOVAtom;
} MOVTrackExt;
typedef struct MOVStreamContext {
- ByteIOContext *pb;
- int ffindex; /* the ffmpeg stream id */
+ AVIOContext *pb;
+ int ffindex; ///< AVStream index
int next_chunk;
unsigned int chunk_count;
int64_t *chunk_offsets;
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;
+ int keyframe_absent;
unsigned int keyframe_count;
int *keyframes;
int time_scale;
- int time_rate;
- int time_offset; ///< time offset of the first edit list entry
+ int64_t 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
+ int16_t audio_cid; ///< stsd audio compression id
unsigned drefs_count;
MOVDref *drefs;
int dref_id;
- int wrong_dts; ///< dts are wrong due to negative ctts
- int width; ///< tkhd width
- int height; ///< tkhd height
+ 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
+ uint32_t palette[256];
+ int has_palette;
+ int64_t data_size;
+ int64_t track_end; ///< used for dts generation in fragmented movie files
} MOVStreamContext;
typedef struct MOVContext {
AVFormatContext *fc;
int time_scale;
- int64_t duration; /* duration of the longest track */
- int found_moov; /* when both 'moov' and 'mdat' sections has been found */
- int found_mdat; /* we suppose we have enough data to read the file */
+ 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) */
+ 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
+ int itunes_metadata; ///< metadata are itunes style
+ int chapter_track;
+ int64_t next_root_atom; ///< offset of the next root atom
} MOVContext;
+int ff_mp4_read_descr_len(AVIOContext *pb);
+int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag);
+int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb);
+void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id);
+
+#define MP4ODescrTag 0x01
+#define MP4IODescrTag 0x02
+#define MP4ESDescrTag 0x03
+#define MP4DecConfigDescrTag 0x04
+#define MP4DecSpecificDescrTag 0x05
+#define MP4SLDescrTag 0x06
+
+#define MOV_TFHD_BASE_DATA_OFFSET 0x01
+#define MOV_TFHD_STSD_ID 0x02
+#define MOV_TFHD_DEFAULT_DURATION 0x08
+#define MOV_TFHD_DEFAULT_SIZE 0x10
+#define MOV_TFHD_DEFAULT_FLAGS 0x20
+#define MOV_TFHD_DURATION_IS_EMPTY 0x010000
+
+#define MOV_TRUN_DATA_OFFSET 0x01
+#define MOV_TRUN_FIRST_SAMPLE_FLAGS 0x04
+#define MOV_TRUN_SAMPLE_DURATION 0x100
+#define MOV_TRUN_SAMPLE_SIZE 0x200
+#define MOV_TRUN_SAMPLE_FLAGS 0x400
+#define MOV_TRUN_SAMPLE_CTS 0x800
+
+#define MOV_FRAG_SAMPLE_FLAG_DEGRADATION_PRIORITY_MASK 0x0000ffff
+#define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC 0x00010000
+#define MOV_FRAG_SAMPLE_FLAG_PADDING_MASK 0x000e0000
+#define MOV_FRAG_SAMPLE_FLAG_REDUNDANCY_MASK 0x00300000
+#define MOV_FRAG_SAMPLE_FLAG_DEPENDED_MASK 0x00c00000
+#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_MASK 0x03000000
+
+#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO 0x02000000
+#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES 0x01000000
+
+int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb, MOVAtom atom);
+enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags);
+
+int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries);
+
#endif /* AVFORMAT_ISOM_H */
projects / ffmpeg / blobdiff