summaryrefslogtreecommitdiff
path: root/libavformat/isom.h
diff options
context:
space:
mode:
authorRonald S. Bultje <rsbultje@gmail.com>2009-03-09 21:53:00 +0000
committerRonald S. Bultje <rsbultje@gmail.com>2009-03-09 21:53:00 +0000
commit88c4339bda6f2ad0e6e431b5c45e32d44d44a344 (patch)
treefb43b5100837461994fb0323301d80a31ea95889 /libavformat/isom.h
parent3898eed890f660d15d314964f7cbbbada3201e54 (diff)
downloadffmpeg-88c4339bda6f2ad0e6e431b5c45e32d44d44a344.tar.gz
Move MOVContext and related structures from mov.c to isom.h. See "[PATCH]
move MOVContext from mov.c to isom.h" thread on ML. Originally committed as revision 17915 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/isom.h')
-rw-r--r--libavformat/isom.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/libavformat/isom.h b/libavformat/isom.h
index 2cad5b8b68..edf860bc8a 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -24,7 +24,9 @@
#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[];
@@ -35,9 +37,103 @@ 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);
+/* 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;
+} MOVDref;
+
+typedef struct {
+ uint32_t type;
+ int64_t offset;
+ 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; /* the ffmpeg stream id */
+ 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;
+ 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_rate;
+ 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 negative ctts
+ int width; ///< tkhd width
+ int height; ///< tkhd height
+} 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 */
+ AVPaletteControl palette_control;
+ 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;
+
#endif /* AVFORMAT_ISOM_H */