/*
* 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>
*
- * 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
*/
-#ifndef FFMPEG_ISOM_H
-#define FFMPEG_ISOM_H
+#ifndef AVFORMAT_ISOM_H
+#define AVFORMAT_ISOM_H
-#include "riff.h"
+#include "avio.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(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]);
-typedef struct {
+/* 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 MOVStts {
int count;
int duration;
-} MOV_stts_t;
+} MOVStts;
+
+typedef struct MOVStsc {
+ int first;
+ int count;
+ int id;
+} MOVStsc;
+
+typedef struct MOVDref {
+ uint32_t type;
+ char *path;
+ char *dir;
+ char volume[28];
+ char filename[64];
+ int16_t nlvl_to, nlvl_from;
+} MOVDref;
+
+typedef struct MOVAtom {
+ uint32_t type;
+ int64_t size; /* total size (excluding the size and type fields) */
+} MOVAtom;
+
+struct MOVParseTableEntry;
+
+typedef struct MOVFragment {
+ unsigned track_id;
+ uint64_t base_data_offset;
+ uint64_t moof_offset;
+ unsigned stsd_id;
+ unsigned duration;
+ unsigned size;
+ unsigned flags;
+} MOVFragment;
+
+typedef struct MOVTrackExt {
+ unsigned track_id;
+ unsigned stsd_id;
+ unsigned duration;
+ unsigned size;
+ unsigned flags;
+} MOVTrackExt;
+
+typedef struct MOVSbgp {
+ unsigned int count;
+ unsigned int index;
+} MOVSbgp;
+
+typedef struct MOVStreamContext {
+ AVIOContext *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;
+ int keyframe_absent;
+ unsigned int keyframe_count;
+ int *keyframes;
+ int time_scale;
+ 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
+ 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
+ uint32_t palette[256];
+ int has_palette;
+ int64_t data_size;
+ int64_t track_end; ///< used for dts generation in fragmented movie files
+ unsigned int rap_group_count;
+ MOVSbgp *rap_group;
+} 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
+ 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
+
+#define MOV_TKHD_FLAG_ENABLED 0x0001
+#define MOV_TKHD_FLAG_IN_MOVIE 0x0002
+#define MOV_TKHD_FLAG_IN_PREVIEW 0x0004
+#define MOV_TKHD_FLAG_IN_POSTER 0x0008
+
+#define TAG_IS_AVCI(tag) \
+ ((tag) == MKTAG('a', 'i', '5', 'p') || \
+ (tag) == MKTAG('a', 'i', '5', 'q') || \
+ (tag) == MKTAG('a', 'i', '5', '2') || \
+ (tag) == MKTAG('a', 'i', '5', '3') || \
+ (tag) == MKTAG('a', 'i', '5', '5') || \
+ (tag) == MKTAG('a', 'i', '5', '6') || \
+ (tag) == MKTAG('a', 'i', '1', 'p') || \
+ (tag) == MKTAG('a', 'i', '1', 'q') || \
+ (tag) == MKTAG('a', 'i', '1', '2') || \
+ (tag) == MKTAG('a', 'i', '1', '3') || \
+ (tag) == MKTAG('a', 'i', '1', '5') || \
+ (tag) == MKTAG('a', 'i', '1', '6') || \
+ (tag) == MKTAG('A', 'V', 'i', 'n'))
+
+
+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 /* FFMPEG_ISOM_H */
+#endif /* AVFORMAT_ISOM_H */
projects / ffmpeg / blobdiff