2 * This file is part of MPlayer.
4 * MPlayer is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * MPlayer is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include "stream/stream.h"
31 #include "aviheader.h"
32 #include "libavutil/common.h"
34 static MainAVIHeader avih
;
36 static int odml_get_vstream_id(int id
, unsigned char res
[])
38 unsigned char *p
= (unsigned char *)&id
;
51 static int avi_idx_cmp(const void *elem1
, const void *elem2
)
53 register off_t a
= AVI_IDX_OFFSET((AVIINDEXENTRY
*)elem1
);
54 register off_t b
= AVI_IDX_OFFSET((AVIINDEXENTRY
*)elem2
);
55 return (a
> b
) - (b
> a
);
58 void read_avi_header(demuxer_t
*demuxer
,int index_mode
){
59 sh_audio_t
*sh_audio
=NULL
;
60 sh_video_t
*sh_video
=NULL
;
62 int idxfix_videostream
=0;
64 avi_priv_t
* priv
=demuxer
->priv
;
69 priv
->audio_streams
=0;
71 int id
=stream_read_dword_le(demuxer
->stream
);
72 unsigned chunksize
,size2
;
73 static int last_fccType
=0;
74 static int last_fccHandler
=0;
77 if(stream_eof(demuxer
->stream
)) break;
78 // Imply -forceidx if -saveidx is specified
82 if(id
==mmioFOURCC('L','I','S','T')){
83 unsigned len
=stream_read_dword_le(demuxer
->stream
); // list size
84 id
=stream_read_dword_le(demuxer
->stream
); // list type
85 mp_msg(MSGT_HEADER
,MSGL_DBG2
,"LIST %.4s len=%u\n",(char *) &id
,len
);
88 list_end
=stream_tell(demuxer
->stream
)+((len
+1)&(~1));
90 mp_tmsg(MSGT_HEADER
,MSGL_WARN
,"** empty list?!\n");
93 mp_msg(MSGT_HEADER
,MSGL_V
,"list_end=0x%X\n",(int)list_end
);
94 if(id
==listtypeAVIMOVIE
){
96 if(!demuxer
->movi_start
) demuxer
->movi_start
=stream_tell(demuxer
->stream
);
97 demuxer
->movi_end
=stream_tell(demuxer
->stream
)+len
;
98 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Found movie at 0x%X - 0x%X\n",(int)demuxer
->movi_start
,(int)demuxer
->movi_end
);
99 if(demuxer
->stream
->end_pos
>demuxer
->movi_end
) demuxer
->movi_end
=demuxer
->stream
->end_pos
;
100 if(index_mode
==-2 || index_mode
==2 || index_mode
==0)
101 break; // reading from non-seekable source (stdin) or forced index or no index forced
102 if(list_end
>0) stream_seek(demuxer
->stream
,list_end
); // skip movi
107 size2
=stream_read_dword_le(demuxer
->stream
);
108 mp_msg(MSGT_HEADER
,MSGL_DBG2
,"CHUNK %.4s len=%u\n",(char *) &id
,size2
);
109 chunksize
=(size2
+1)&(~1);
112 // Indicates where the subject of the file is archived
113 case mmioFOURCC('I','A','R','L'): hdr
="Archival Location";break;
114 // Lists the artist of the original subject of the file;
115 // for example, "Michaelangelo."
116 case mmioFOURCC('I','A','R','T'): hdr
="Artist";break;
117 // Lists the name of the person or organization that commissioned
118 // the subject of the file; for example "Pope Julian II."
119 case mmioFOURCC('I','C','M','S'): hdr
="Commissioned";break;
120 // Provides general comments about the file or the subject
121 // of the file. If the comment is several sentences long, end each
122 // sentence with a period. Do not include new-line characters.
123 case mmioFOURCC('I','C','M','T'): hdr
="Comments";break;
124 // Records the copyright information for the file; for example,
125 // "Copyright Encyclopedia International 1991." If there are multiple
126 // copyrights, separate them by semicolon followed by a space.
127 case mmioFOURCC('I','C','O','P'): hdr
="Copyright";break;
128 // Describes whether an image has been cropped and, if so, how it
129 // was cropped; for example, "lower-right corner."
130 case mmioFOURCC('I','C','R','D'): hdr
="Creation Date";break;
131 // Describes whether an image has been cropped and, if so, how it
132 // was cropped; for example, "lower-right corner."
133 case mmioFOURCC('I','C','R','P'): hdr
="Cropped";break;
134 // Specifies the size of the original subject of the file; for
135 // example, "8.5 in h, 11 in w."
136 case mmioFOURCC('I','D','I','M'): hdr
="Dimensions";break;
137 // Stores dots per inch setting of the digitizer used to
138 // produce the file, such as "300."
139 case mmioFOURCC('I','D','P','I'): hdr
="Dots Per Inch";break;
140 // Stores the of the engineer who worked on the file. If there are
141 // multiple engineers, separate the names by a semicolon and a blank;
142 // for example, "Smith, John; Adams, Joe."
143 case mmioFOURCC('I','E','N','G'): hdr
="Engineer";break;
144 // Describes the original work, such as "landscape,", "portrait,"
145 // "still liefe," etc.
146 case mmioFOURCC('I','G','N','R'): hdr
="Genre";break;
147 // Provides a list of keywords that refer to the file or subject of the
148 // file. Separate multiple keywords with a semicolon and a blank;
149 // for example, "Seattle, aerial view; scenery."
150 case mmioFOURCC('I','K','E','Y'): hdr
="Keywords";break;
151 // ILGT - Describes the changes in the lightness settings on the digitizer
152 // required to produce the file. Note that the format of this information
153 // depends on the hardware used.
154 case mmioFOURCC('I','L','G','T'): hdr
="Lightness";break;
155 // IMED - Decribes the original subject of the file, such as
156 // "computer image," "drawing," "lithograph," and so on.
157 case mmioFOURCC('I','M','E','D'): hdr
="Medium";break;
158 // INAM - Stores the title of the subject of the file, such as
159 // "Seattle from Above."
160 case mmioFOURCC('I','N','A','M'): hdr
="Title";break;
161 // IPLT - Specifies the number of colors requested when digitizing
162 // an image, such as "256."
163 case mmioFOURCC('I','P','L','T'): hdr
="Palette Setting";break;
164 // IPRD - Specifies the name of title the file was originally intended
165 // for, such as "Encyclopedia of Pacific Northwest Geography."
166 case mmioFOURCC('I','P','R','D'): hdr
="Product";break;
167 // ISBJ - Decsribes the contents of the file, such as
168 // "Aerial view of Seattle."
169 case mmioFOURCC('I','S','B','J'): hdr
="Subject";break;
170 // ISFT - Identifies the name of the software packages used to create the
171 // file, such as "Microsoft WaveEdit"
172 case mmioFOURCC('I','S','F','T'): hdr
="Software";break;
173 // ISHP - Identifies the change in sharpness for the digitizer
174 // required to produce the file (the format depends on the hardware used).
175 case mmioFOURCC('I','S','H','P'): hdr
="Sharpness";break;
176 // ISRC - Identifies the name of the person or organization who
177 // suplied the original subject of the file; for example, "Try Research."
178 case mmioFOURCC('I','S','R','C'): hdr
="Source";break;
179 // ISRF - Identifies the original form of the material that was digitized,
180 // such as "slide," "paper," "map," and so on. This is not necessarily
182 case mmioFOURCC('I','S','R','F'): hdr
="Source Form";break;
183 // ITCH - Identifies the technician who digitized the subject file;
184 // for example, "Smith, John."
185 case mmioFOURCC('I','T','C','H'): hdr
="Technician";break;
186 case mmioFOURCC('I','S','M','P'): hdr
="Time Code";break;
187 case mmioFOURCC('I','D','I','T'): hdr
="Digitization Time";break;
189 case ckidAVIMAINHDR
: // read 'avih'
190 stream_read(demuxer
->stream
,(char*) &avih
,FFMIN(size2
,sizeof(avih
)));
191 le2me_MainAVIHeader(&avih
); // swap to machine endian
192 chunksize
-=FFMIN(size2
,sizeof(avih
));
193 if( mp_msg_test(MSGT_HEADER
,MSGL_V
) ) print_avih(&avih
,MSGL_V
); // else print_avih_flags(&avih,MSGL_V);
195 case ckidSTREAMHEADER
: { // read 'strh'
197 stream_read(demuxer
->stream
,(char*) &h
,FFMIN(size2
,sizeof(h
)));
198 le2me_AVIStreamHeader(&h
); // swap to machine endian
199 chunksize
-=FFMIN(size2
,sizeof(h
));
201 if(h
.fccType
==streamtypeVIDEO
){
202 sh_video
=new_sh_video(demuxer
,stream_id
);
203 mp_tmsg(MSGT_DEMUX
, MSGL_INFO
, "[%s] Video stream found, -vid %d\n", "aviheader", stream_id
);
204 memcpy(&sh_video
->video
,&h
,sizeof(h
));
205 sh_video
->stream_delay
= (float)sh_video
->video
.dwStart
* sh_video
->video
.dwScale
/sh_video
->video
.dwRate
;
207 if(h
.fccType
==streamtypeAUDIO
){
208 sh_audio
=new_sh_audio(demuxer
,stream_id
);
209 mp_tmsg(MSGT_DEMUX
, MSGL_INFO
, "[%s] Audio stream found, -aid %d\n", "aviheader", stream_id
);
210 memcpy(&sh_audio
->audio
,&h
,sizeof(h
));
211 sh_audio
->stream_delay
= (float)sh_audio
->audio
.dwStart
* sh_audio
->audio
.dwScale
/sh_audio
->audio
.dwRate
;
212 sh_audio
->needs_parsing
= 1;
214 last_fccType
=h
.fccType
;
215 last_fccHandler
=h
.fccHandler
;
216 if( mp_msg_test(MSGT_HEADER
,MSGL_V
) ) print_strh(&h
,MSGL_V
);
218 case mmioFOURCC('i', 'n', 'd', 'x'): {
220 avisuperindex_chunk
*s
;
222 if(!index_mode
) break;
228 priv
->suidx
= realloc_struct(priv
->suidx
, priv
->suidx_size
, sizeof (avisuperindex_chunk
));
229 s
= &priv
->suidx
[priv
->suidx_size
-1];
232 memcpy(s
->fcc
, "indx", 4);
234 s
->wLongsPerEntry
= stream_read_word_le(demuxer
->stream
);
235 s
->bIndexSubType
= stream_read_char(demuxer
->stream
);
236 s
->bIndexType
= stream_read_char(demuxer
->stream
);
237 s
->nEntriesInUse
= stream_read_dword_le(demuxer
->stream
);
238 *(uint32_t *)s
->dwChunkId
= stream_read_dword_le(demuxer
->stream
);
239 stream_read(demuxer
->stream
, (char *)s
->dwReserved
, 3*4);
240 memset(s
->dwReserved
, 0, 3*4);
242 print_avisuperindex_chunk(s
,MSGL_V
);
244 // Check and fix this useless crap
245 if(s
->wLongsPerEntry
!= sizeof (avisuperindex_entry
)/4) {
246 mp_msg (MSGT_HEADER
, MSGL_WARN
, "Broken super index chunk size: %u\n",s
->wLongsPerEntry
);
247 s
->wLongsPerEntry
= sizeof(avisuperindex_entry
)/4;
249 if( ((chunksize
/4)/s
->wLongsPerEntry
) < s
->nEntriesInUse
){
250 mp_msg (MSGT_HEADER
, MSGL_WARN
, "Broken super index chunk\n");
251 s
->nEntriesInUse
= (chunksize
/4)/s
->wLongsPerEntry
;
254 s
->aIndex
= calloc(s
->nEntriesInUse
, sizeof (avisuperindex_entry
));
255 s
->stdidx
= calloc(s
->nEntriesInUse
, sizeof (avistdindex_chunk
));
257 // now the real index of indices
258 for (i
=0; i
<s
->nEntriesInUse
; i
++) {
260 s
->aIndex
[i
].qwOffset
= stream_read_qword_le(demuxer
->stream
);
261 s
->aIndex
[i
].dwSize
= stream_read_dword_le(demuxer
->stream
);
262 s
->aIndex
[i
].dwDuration
= stream_read_dword_le(demuxer
->stream
);
263 mp_msg (MSGT_HEADER
, MSGL_V
, "ODML (%.4s): [%d] 0x%016"PRIx64
" 0x%04x %u\n",
265 (uint64_t)s
->aIndex
[i
].qwOffset
, s
->aIndex
[i
].dwSize
, s
->aIndex
[i
].dwDuration
);
269 case ckidSTREAMFORMAT
: { // read 'strf'
270 if(last_fccType
==streamtypeVIDEO
){
271 sh_video
->bih
=calloc(FFMAX(chunksize
, sizeof(BITMAPINFOHEADER
)), 1);
272 // sh_video->bih=malloc(chunksize); memset(sh_video->bih,0,chunksize);
273 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Found 'bih', %u bytes of %d\n",chunksize
,sizeof(BITMAPINFOHEADER
));
274 stream_read(demuxer
->stream
,(char*) sh_video
->bih
,chunksize
);
275 le2me_BITMAPINFOHEADER(sh_video
->bih
); // swap to machine endian
276 if (sh_video
->bih
->biSize
> chunksize
&& sh_video
->bih
->biSize
> sizeof(BITMAPINFOHEADER
))
277 sh_video
->bih
->biSize
= chunksize
;
278 // fixup MS-RLE header (seems to be broken for <256 color files)
279 if(sh_video
->bih
->biCompression
<=1 && sh_video
->bih
->biSize
==40)
280 sh_video
->bih
->biSize
=chunksize
;
281 if( mp_msg_test(MSGT_HEADER
,MSGL_V
) ) print_video_header(sh_video
->bih
,MSGL_V
);
283 sh_video
->fps
=(float)sh_video
->video
.dwRate
/(float)sh_video
->video
.dwScale
;
284 sh_video
->frametime
=(float)sh_video
->video
.dwScale
/(float)sh_video
->video
.dwRate
;
285 sh_video
->format
= sh_video
->bih
->biCompression
;
286 // if(demuxer->video->id==-1) demuxer->video->id=stream_id;
288 idxfix_videostream
=stream_id
;
289 switch(sh_video
->bih
->biCompression
){
290 case mmioFOURCC('M', 'P', 'G', '4'):
291 case mmioFOURCC('m', 'p', 'g', '4'):
292 case mmioFOURCC('D', 'I', 'V', '1'):
293 idxfix_divx
=3; // set index recovery mpeg4 flavour: msmpeg4v1
294 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Regenerating keyframe table for M$ mpg4v1 video.\n");
296 case mmioFOURCC('D', 'I', 'V', '3'):
297 case mmioFOURCC('d', 'i', 'v', '3'):
298 case mmioFOURCC('D', 'I', 'V', '4'):
299 case mmioFOURCC('d', 'i', 'v', '4'):
300 case mmioFOURCC('D', 'I', 'V', '5'):
301 case mmioFOURCC('d', 'i', 'v', '5'):
302 case mmioFOURCC('D', 'I', 'V', '6'):
303 case mmioFOURCC('d', 'i', 'v', '6'):
304 case mmioFOURCC('M', 'P', '4', '3'):
305 case mmioFOURCC('m', 'p', '4', '3'):
306 case mmioFOURCC('M', 'P', '4', '2'):
307 case mmioFOURCC('m', 'p', '4', '2'):
308 case mmioFOURCC('D', 'I', 'V', '2'):
309 case mmioFOURCC('A', 'P', '4', '1'):
310 idxfix_divx
=1; // set index recovery mpeg4 flavour: msmpeg4v3
311 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Regenerating keyframe table for DIVX3 video.\n");
313 case mmioFOURCC('D', 'I', 'V', 'X'):
314 case mmioFOURCC('d', 'i', 'v', 'x'):
315 case mmioFOURCC('D', 'X', '5', '0'):
316 case mmioFOURCC('X', 'V', 'I', 'D'):
317 case mmioFOURCC('x', 'v', 'i', 'd'):
318 case mmioFOURCC('F', 'M', 'P', '4'):
319 case mmioFOURCC('f', 'm', 'p', '4'):
320 idxfix_divx
=2; // set index recovery mpeg4 flavour: generic mpeg4
321 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Regenerating keyframe table for MPEG-4 video.\n");
325 if(last_fccType
==streamtypeAUDIO
){
326 unsigned wf_size
= chunksize
<sizeof(WAVEFORMATEX
)?sizeof(WAVEFORMATEX
):chunksize
;
327 sh_audio
->wf
=calloc(wf_size
,1);
328 // sh_audio->wf=malloc(chunksize); memset(sh_audio->wf,0,chunksize);
329 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Found 'wf', %d bytes of %d\n",chunksize
,sizeof(WAVEFORMATEX
));
330 stream_read(demuxer
->stream
,(char*) sh_audio
->wf
,chunksize
);
331 le2me_WAVEFORMATEX(sh_audio
->wf
);
332 if (sh_audio
->wf
->cbSize
!= 0 &&
333 wf_size
< sizeof(WAVEFORMATEX
)+sh_audio
->wf
->cbSize
) {
334 sh_audio
->wf
=realloc(sh_audio
->wf
, sizeof(WAVEFORMATEX
)+sh_audio
->wf
->cbSize
);
336 sh_audio
->format
=sh_audio
->wf
->wFormatTag
;
337 if (sh_audio
->format
== 1 &&
338 last_fccHandler
== mmioFOURCC('A', 'x', 'a', 'n'))
339 sh_audio
->format
= last_fccHandler
;
340 sh_audio
->i_bps
=sh_audio
->wf
->nAvgBytesPerSec
;
342 if( mp_msg_test(MSGT_HEADER
,MSGL_V
) ) print_wave_header(sh_audio
->wf
,MSGL_V
);
343 ++priv
->audio_streams
;
344 // if(demuxer->audio->id==-1) demuxer->audio->id=stream_id;
348 case mmioFOURCC('v', 'p', 'r', 'p'): {
349 VideoPropHeader
*vprp
= malloc(chunksize
);
351 stream_read(demuxer
->stream
, (void*)vprp
, chunksize
);
352 le2me_VideoPropHeader(vprp
);
353 chunksize
-= sizeof(*vprp
)-sizeof(vprp
->FieldInfo
);
354 chunksize
/= sizeof(VIDEO_FIELD_DESC
);
355 if (vprp
->nbFieldPerFrame
> chunksize
) {
356 vprp
->nbFieldPerFrame
= chunksize
;
359 for (i
=0; i
<vprp
->nbFieldPerFrame
; i
++) {
360 le2me_VIDEO_FIELD_DESC(&vprp
->FieldInfo
[i
]);
363 sh_video
->aspect
= GET_AVI_ASPECT(vprp
->dwFrameAspectRatio
);
365 if( mp_msg_test(MSGT_HEADER
,MSGL_V
) ) print_vprp(vprp
,MSGL_V
);
369 case mmioFOURCC('d', 'm', 'l', 'h'): {
370 // dmlh 00 00 00 04 frms
371 unsigned int total_frames
= stream_read_dword_le(demuxer
->stream
);
372 mp_tmsg(MSGT_HEADER
,MSGL_V
,"AVI: dmlh found (size=%d) (total_frames=%d)\n", chunksize
, total_frames
);
373 stream_skip(demuxer
->stream
, chunksize
-4);
377 case ckidAVINEWINDEX
:
378 if(demuxer
->movi_end
>stream_tell(demuxer
->stream
))
379 demuxer
->movi_end
=stream_tell(demuxer
->stream
); // fixup movi-end
380 if(index_mode
&& !priv
->isodml
){
382 priv
->idx_size
=size2
>>4;
383 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Reading INDEX block, %d chunks for %d frames (fpos=%"PRId64
").\n",
384 priv
->idx_size
,avih
.dwTotalFrames
, (int64_t)stream_tell(demuxer
->stream
));
385 priv
->idx
=malloc(priv
->idx_size
<<4);
386 // printf("\nindex to %p !!!!! (priv=%p)\n",priv->idx,priv);
387 stream_read(demuxer
->stream
,(char*)priv
->idx
,priv
->idx_size
<<4);
388 for (i
= 0; i
< priv
->idx_size
; i
++) { // swap index to machine endian
389 AVIINDEXENTRY
*entry
=(AVIINDEXENTRY
*)priv
->idx
+ i
;
390 le2me_AVIINDEXENTRY(entry
);
392 * We (ab)use the upper word for bits 32-47 of the offset, so
393 * we'll clear them here.
394 * FIXME: AFAIK no codec uses them, but if one does it will break
396 entry
->dwFlags
&=0xffff;
398 chunksize
-=priv
->idx_size
<<4;
399 if( mp_msg_test(MSGT_HEADER
,MSGL_DBG2
) ) print_index(priv
->idx
,priv
->idx_size
,MSGL_DBG2
);
403 case mmioFOURCC('R','I','F','F'): {
406 mp_tmsg(MSGT_HEADER
, MSGL_V
, "Additional RIFF header...\n");
407 stream_read(demuxer
->stream
, riff_type
, sizeof riff_type
);
408 if (strncmp(riff_type
, "AVIX", sizeof riff_type
))
409 mp_tmsg(MSGT_HEADER
, MSGL_WARN
, "** Warning: this is no extended AVI header..\n");
412 * We got an extended AVI header, so we need to switch to
413 * ODML to get seeking to work, provided we got indx chunks
414 * in the header (suidx_size > 0).
416 if (priv
->suidx_size
> 0)
420 list_end
= 0; /* a new list will follow */
423 stream_skip(demuxer
->stream
, chunksize
);
428 mp_msg(MSGT_HEADER
,MSGL_V
,"hdr=%s size=%u\n",hdr
,size2
);
430 chunksize
=1; // empty
433 int len
=(size2
<250)?size2
:250;
434 stream_read(demuxer
->stream
,buf
,len
);
437 mp_msg(MSGT_HEADER
,MSGL_V
,"%-10s: %s\n",hdr
,buf
);
438 demux_info_add(demuxer
, hdr
, buf
);
441 mp_msg(MSGT_HEADER
,MSGL_DBG2
,"list_end=0x%"PRIX64
" pos=0x%"PRIX64
" chunksize=0x%"PRIX64
" next=0x%"PRIX64
"\n",
442 (int64_t)list_end
, (int64_t)stream_tell(demuxer
->stream
),
443 (int64_t)chunksize
, (int64_t)chunksize
+(int64_t)stream_tell(demuxer
->stream
));
445 chunksize
+stream_tell(demuxer
->stream
) == list_end
) list_end
=0;
446 if(list_end
>0 && chunksize
+stream_tell(demuxer
->stream
)>list_end
){
447 mp_tmsg(MSGT_HEADER
,MSGL_V
,"Broken chunk? chunksize=%d (id=%.4s)\n",chunksize
,(char *) &id
);
448 stream_seek(demuxer
->stream
,list_end
);
451 if(chunksize
>0) stream_skip(demuxer
->stream
,chunksize
); else
452 if((int)chunksize
<0) mp_msg(MSGT_HEADER
,MSGL_WARN
,"chunksize=%u (id=%.4s)\n",chunksize
,(char *) &id
);
456 if (priv
->suidx_size
> 0 && priv
->idx_size
== 0) {
458 * No NEWAVIINDEX, but we got an OpenDML index.
463 if (priv
->isodml
&& (index_mode
==-1 || index_mode
==0 || index_mode
==1)) {
466 avisuperindex_chunk
*cx
;
470 if (priv
->idx_size
) free(priv
->idx
);
472 priv
->idx_offset
= 0;
475 mp_tmsg(MSGT_HEADER
, MSGL_INFO
, "AVI: ODML: Building ODML index (%d superindexchunks).\n", priv
->suidx_size
);
477 // read the standard indices
478 for (cx
= &priv
->suidx
[0], i
=0; i
<priv
->suidx_size
; cx
++, i
++) {
479 stream_reset(demuxer
->stream
);
480 for (j
=0; j
<cx
->nEntriesInUse
; j
++) {
482 memset(&cx
->stdidx
[j
], 0, 32);
483 ret1
= stream_seek(demuxer
->stream
, (off_t
)cx
->aIndex
[j
].qwOffset
);
484 ret2
= stream_read(demuxer
->stream
, (char *)&cx
->stdidx
[j
], 32);
485 if (ret1
!= 1 || ret2
!= 32 || cx
->stdidx
[j
].nEntriesInUse
==0) {
486 // this is a broken file (probably incomplete) let the standard
487 // gen_index routine handle this
490 mp_tmsg(MSGT_HEADER
, MSGL_WARN
, "AVI: ODML: Broken (incomplete?) file detected. Will use traditional index.\n");
494 le2me_AVISTDIDXCHUNK(&cx
->stdidx
[j
]);
495 print_avistdindex_chunk(&cx
->stdidx
[j
],MSGL_V
);
496 priv
->idx_size
+= cx
->stdidx
[j
].nEntriesInUse
;
497 cx
->stdidx
[j
].aIndex
= malloc(cx
->stdidx
[j
].nEntriesInUse
*sizeof(avistdindex_entry
));
498 stream_read(demuxer
->stream
, (char *)cx
->stdidx
[j
].aIndex
,
499 cx
->stdidx
[j
].nEntriesInUse
*sizeof(avistdindex_entry
));
500 for (k
=0;k
<cx
->stdidx
[j
].nEntriesInUse
; k
++)
501 le2me_AVISTDIDXENTRY(&cx
->stdidx
[j
].aIndex
[k
]);
503 cx
->stdidx
[j
].dwReserved3
= 0;
509 * We convert the index by translating all entries into AVIINDEXENTRYs
510 * and sorting them by offset. The result should be the same index
511 * we would get with -forceidx.
514 idx
= priv
->idx
= malloc(priv
->idx_size
* sizeof (AVIINDEXENTRY
));
516 for (cx
= priv
->suidx
; cx
!= &priv
->suidx
[priv
->suidx_size
]; cx
++) {
517 avistdindex_chunk
*sic
;
518 for (sic
= cx
->stdidx
; sic
!= &cx
->stdidx
[cx
->nEntriesInUse
]; sic
++) {
519 avistdindex_entry
*sie
;
520 for (sie
= sic
->aIndex
; sie
!= &sic
->aIndex
[sic
->nEntriesInUse
]; sie
++) {
521 uint64_t off
= sic
->qwBaseOffset
+ sie
->dwOffset
- 8;
522 memcpy(&idx
->ckid
, sic
->dwChunkId
, 4);
523 idx
->dwChunkOffset
= off
;
524 idx
->dwFlags
= (off
>> 32) << 16;
525 idx
->dwChunkLength
= sie
->dwSize
& 0x7fffffff;
526 idx
->dwFlags
|= (sie
->dwSize
&0x80000000)?0x0:AVIIF_KEYFRAME
; // bit 31 denotes !keyframe
531 qsort(priv
->idx
, priv
->idx_size
, sizeof(AVIINDEXENTRY
), avi_idx_cmp
);
534 Hack to work around a "wrong" index in some divx odml files
535 (processor_burning.avi as an example)
536 They have ##dc on non keyframes but the ix00 tells us they are ##db.
537 Read the fcc of a non-keyframe vid frame and check it.
543 stream_reset (demuxer
->stream
);
545 // find out the video stream id. I have seen files with 01db.
546 for (idx
= &((AVIINDEXENTRY
*)priv
->idx
)[0], i
=0; i
<priv
->idx_size
; i
++, idx
++){
547 unsigned char res
[2];
548 if (odml_get_vstream_id(idx
->ckid
, res
)) {
549 db
= mmioFOURCC(res
[0], res
[1], 'd', 'b');
554 // find first non keyframe
555 for (idx
= &((AVIINDEXENTRY
*)priv
->idx
)[0], i
=0; i
<priv
->idx_size
; i
++, idx
++){
556 if (!(idx
->dwFlags
& AVIIF_KEYFRAME
) && idx
->ckid
== db
) break;
558 if (i
<priv
->idx_size
&& db
) {
559 stream_seek(demuxer
->stream
, AVI_IDX_OFFSET(idx
));
560 id
= stream_read_dword_le(demuxer
->stream
);
561 if (id
&& id
!= db
) // index fcc and real fcc differ? fix it.
562 for (idx
= &((AVIINDEXENTRY
*)priv
->idx
)[0], i
=0; i
<priv
->idx_size
; i
++, idx
++){
563 if (!(idx
->dwFlags
& AVIIF_KEYFRAME
) && idx
->ckid
== db
)
569 if ( mp_msg_test(MSGT_HEADER
,MSGL_DBG2
) ) print_index(priv
->idx
, priv
->idx_size
,MSGL_DBG2
);
571 demuxer
->movi_end
=demuxer
->stream
->end_pos
;
575 // free unneeded stuff
576 cx
= &priv
->suidx
[0];
578 for (j
=0;j
<cx
->nEntriesInUse
;j
++)
579 if (cx
->stdidx
[j
].nEntriesInUse
) free(cx
->stdidx
[j
].aIndex
);
582 } while (cx
++ != &priv
->suidx
[priv
->suidx_size
-1]);
587 /* Read a saved index file */
588 if (index_file_load
) {
593 if ((fp
= fopen(index_file_load
, "r")) == NULL
) {
594 mp_tmsg(MSGT_HEADER
,MSGL_ERR
, "Can't read index file %s: %s\n", index_file_load
, strerror(errno
));
597 fread(&magic
, 6, 1, fp
);
598 if (strncmp(magic
, "MPIDX1", 6)) {
599 mp_tmsg(MSGT_HEADER
,MSGL_ERR
, "%s is not a valid MPlayer index file.\n", index_file_load
);
602 fread(&priv
->idx_size
, sizeof(priv
->idx_size
), 1, fp
);
603 priv
->idx
=malloc(priv
->idx_size
*sizeof(AVIINDEXENTRY
));
605 mp_tmsg(MSGT_HEADER
,MSGL_ERR
, "Could not allocate memory for index data from %s.\n", index_file_load
);
610 for (i
=0; i
<priv
->idx_size
;i
++) {
612 idx
=&((AVIINDEXENTRY
*)priv
->idx
)[i
];
613 fread(idx
, sizeof(AVIINDEXENTRY
), 1, fp
);
615 mp_tmsg(MSGT_HEADER
,MSGL_ERR
, "premature end of index file %s\n", index_file_load
);
622 mp_tmsg(MSGT_HEADER
,MSGL_INFO
, "Loaded index file: %s\n", index_file_load
);
625 if(index_mode
>=2 || (priv
->idx_size
==0 && index_mode
==1)){
627 // build index for file:
628 stream_reset(demuxer
->stream
);
629 stream_seek(demuxer
->stream
,demuxer
->movi_start
);
640 demuxer
->filepos
=stream_tell(demuxer
->stream
);
641 if(demuxer
->filepos
>=demuxer
->movi_end
&& demuxer
->movi_start
<demuxer
->movi_end
) break;
642 id
=stream_read_dword_le(demuxer
->stream
);
643 len
=stream_read_dword_le(demuxer
->stream
);
644 if(id
==mmioFOURCC('L','I','S','T') || id
==mmioFOURCC('R', 'I', 'F', 'F')){
645 id
=stream_read_dword_le(demuxer
->stream
); // list or RIFF type
648 if(stream_eof(demuxer
->stream
)) break;
649 if(!id
|| avi_stream_id(id
)==100) goto skip_chunk
; // bad ID (or padding?)
651 if(idx_pos
>=priv
->idx_size
){
652 // priv->idx_size+=32;
653 priv
->idx_size
+=1024; // +16kB
654 priv
->idx
=realloc(priv
->idx
,priv
->idx_size
*sizeof(AVIINDEXENTRY
));
655 if(!priv
->idx
){idx_pos
=0; break;} // error!
657 idx
=&((AVIINDEXENTRY
*)priv
->idx
)[idx_pos
++];
659 idx
->dwFlags
=AVIIF_KEYFRAME
; // FIXME
660 idx
->dwFlags
|=(demuxer
->filepos
>>16)&0xffff0000U
;
661 idx
->dwChunkOffset
=(unsigned long)demuxer
->filepos
;
662 idx
->dwChunkLength
=len
;
664 c
=stream_read_dword(demuxer
->stream
);
666 if(!len
) idx
->dwFlags
&=~AVIIF_KEYFRAME
;
668 // Fix keyframes for DivX files:
670 if(avi_stream_id(id
)==idxfix_videostream
){
672 case 3: c
=stream_read_dword(demuxer
->stream
)<<5; //skip 32+5 bits for m$mpeg4v1
673 case 1: if(c
&0x40000000) idx
->dwFlags
&=~AVIIF_KEYFRAME
;break; // divx 3
674 case 2: if(c
==0x1B6) idx
->dwFlags
&=~AVIIF_KEYFRAME
;break; // divx 4
678 // update status line:
679 { static off_t lastpos
;
681 off_t len
=demuxer
->movi_end
-demuxer
->movi_start
;
683 pos
=100*(demuxer
->filepos
-demuxer
->movi_start
)/len
; // %
685 pos
=(demuxer
->filepos
-demuxer
->movi_start
)>>20; // MB
689 mp_tmsg(MSGT_HEADER
,MSGL_STATUS
, "Generating Index: %3lu %s \r",
690 (unsigned long)pos
, len
?"%":"MB");
693 mp_dbg(MSGT_HEADER
,MSGL_DBG2
,"%08X %08X %.4s %08X %X\n",(unsigned int)demuxer
->filepos
,id
,(char *) &id
,(int)c
,(unsigned int) idx
->dwFlags
);
695 { unsigned char tmp
[64];
697 stream_read(demuxer
->stream
,tmp
,64);
699 for(i
=0;i
<64;i
++) printf(" %02X",tmp
[i
]);
704 skip
=(len
+1)&(~1UL); // total bytes in this chunk
705 stream_seek(demuxer
->stream
,8+demuxer
->filepos
+skip
);
707 priv
->idx_size
=idx_pos
;
708 mp_tmsg(MSGT_HEADER
,MSGL_INFO
,"AVI: Generated index table for %d chunks!\n",priv
->idx_size
);
709 if( mp_msg_test(MSGT_HEADER
,MSGL_DBG2
) ) print_index(priv
->idx
,priv
->idx_size
,MSGL_DBG2
);
711 /* Write generated index to a file */
712 if (index_file_save
) {
716 if ((fp
=fopen(index_file_save
, "w")) == NULL
) {
717 mp_tmsg(MSGT_HEADER
,MSGL_ERR
, "Couldn't write index file %s: %s\n", index_file_save
, strerror(errno
));
720 fwrite("MPIDX1", 6, 1, fp
);
721 fwrite(&priv
->idx_size
, sizeof(priv
->idx_size
), 1, fp
);
722 for (i
=0; i
<priv
->idx_size
; i
++) {
723 AVIINDEXENTRY
*idx
= &((AVIINDEXENTRY
*)priv
->idx
)[i
];
724 fwrite(idx
, sizeof(AVIINDEXENTRY
), 1, fp
);
727 mp_tmsg(MSGT_HEADER
,MSGL_INFO
, "Saved index file: %s\n", index_file_save
);