root/branches/perian-1.0/ff_private.h

Revision 461, 4.2 kB (checked in by dconrad, 2 years ago)

When idle importing, only add samples to the track if the movie is paused unless necessary. Also speed up idle importing of local files considerably. Closes #143

Line 
1 /*****************************************************************************
2 *
3 *  Avi Import Component Private Header
4 *
5 *  Copyright(C) 2006 Christoph Naegeli <chn1@mac.com>
6 *
7 *  This library is free software; you can redistribute it and/or
8 *  modify it under the terms of the GNU Lesser General Public
9 *  License as published by the Free Software Foundation; either
10 *  version 2.1 of the License, or (at your option) any later version.
11 * 
12 *  This library is distributed in the hope that it will be useful,
13 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 *  Lesser General Public License for more details.
16 * 
17 *  You should have received a copy of the GNU Lesser General Public
18 *  License along with this library; if not, write to the Free Software
19 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
20 *
21 ****************************************************************************/
22
23 #ifndef __FF_PRIVATE__
24 #define __FF_PRIVATE__
25
26 #include "avformat.h"
27 #include <QuickTime/Movies.h>
28
29 /* Data structres needed for import */
30 struct _NCStream {
31         int index;
32         AVStream *str;
33         SampleDescriptionHandle sampleHdl;
34         AudioStreamBasicDescription asbd;
35         Media media;
36         UInt32 vbr;
37         AVRational base;
38         int64_t lastpts;
39         SampleReference64Ptr sampleTable;
40         SampleReference64Record lastSample;
41         TimeValue duration;
42 };
43 typedef struct _NCStream NCStream;
44
45 // this used to live in ff_MovieImport.c, but it had to move here for idling support
46 struct _ff_global_context {
47         Movie movie;
48         ComponentInstance ci;
49         OSType componentType;
50        
51         /* For feedback during import */
52         MovieProgressUPP prog;
53         long refcon;
54        
55         /* for overwriting the default sample descriptions */
56         ImageDescriptionHandle imgHdl;
57         SoundDescriptionHandle sndHdl;
58        
59         // things needed for idling support
60         Track placeholderTrack;
61         DataHandler dataHandler;
62         bool isStreamed;
63         Boolean dataHandlerSupportsWideOffsets;
64         int64_t dataSize;
65         int largestPacketSize;
66        
67         IdleManager idleManager;
68         long movieLoadState;
69         TimeValue loadedTime;
70         TimeValue lastIdleTime;
71         int idlesSinceLastAdd;
72        
73         //the "atTime" parameter to the initial import.
74         TimeValue atTime;
75        
76         // libavcodec fun.
77         AVInputFormat *format;
78         AVFormatContext *format_context;
79         NCStream *stream_map;
80         int map_count;
81         int64_t header_offset;
82        
83         AVPacket firstFrames[MAX_STREAMS];
84 };
85 typedef struct _ff_global_context ff_global_context;
86 typedef ff_global_context *ff_global_ptr;
87
88 /* Utilities */
89 ComponentResult check_system();
90
91 /* Library initialization */
92 void register_parsers();
93
94 /* Public interface of the DataRef interface */
95 OSStatus url_open_dataref(ByteIOContext *pb, Handle dataRef, OSType dataRefType, DataHandler *dataHandler, Boolean *wideSupport, int64_t *dataSize);
96
97 /* Import routines */
98 int prepare_track(ff_global_ptr storage, Track targetTrack, Handle dataRef, OSType dataRefType);
99 int prepare_movie(ff_global_ptr storage, Movie theMovie, Handle dataRef, OSType dataRefType);
100 void initialize_video_map(NCStream *map, Track targetTrack, Handle dataRef, OSType dataRefType, AVPacket *firstFrame);
101 void initialize_audio_map(NCStream *map, Track targetTrack, Handle dataRef, OSType dataRefType, AVPacket *firstFrame);
102
103 int determine_header_offset(ff_global_ptr storage);
104 int import_using_index(ff_global_ptr storage, int *hadIndex, TimeValue *addedDuration);
105 ComponentResult import_with_idle(ff_global_ptr storage, long inFlags, long *outFlags, int minFrames, int maxFrames, bool addSamples);
106 ComponentResult create_placeholder_track(Movie movie, Track *placeholderTrack, TimeValue duration, Handle dataRef, OSType dataRefType);
107 void send_movie_changed_notification(Movie movie);
108
109 OSType map_video_codec_to_mov_tag(enum CodecID codec_id);
110 void map_avi_to_mov_tag(enum CodecID codec_id, AudioStreamBasicDescription *asbd, NCStream *map);
111 uint8_t *create_cookie(AVCodecContext *codec, int *cookieSize, UInt32 formatID);
112 Handle create_strf_ext(AVCodecContext *codec);
113
114 uint8_t *write_int32(uint8_t *target, int32_t data);
115 uint8_t *write_int16(uint8_t *target, int16_t data);
116 uint8_t *write_data(uint8_t *target, uint8_t* data, int32_t data_size);
117
118 #define BSWAP(a) ( (((a)&0xff) << 24) | (((a)&0xff00) << 8) | (((a)&0xff0000) >> 8) | (((a) >> 24) & 0xff) )
119
120 #define IS_AVI(x) (x == 'AVI ' || x == 'VfW ' || x == 'VFW ')
121
122 #endif
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