mp_msg: Remove uses of MSGT_MENCODER
[mplayer/glamo.git] / libmpdemux / asfheader.c
blob7a2285e2a11c5c26a4fc9924f8520b8ab70ea7da
1 /*
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.
19 // .asf fileformat docs from http://divx.euro.ru
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <unistd.h>
25 #include "config.h"
26 #include "libavutil/common.h"
27 #include "ffmpeg_files/intreadwrite.h"
28 #include "mp_msg.h"
30 #include "stream/stream.h"
31 #include "aviprint.h"
32 #include "demuxer.h"
33 #include "stheader.h"
35 #include "asf.h"
36 #include "asfguid.h"
37 #include "asfheader.h"
39 typedef struct {
40 // must be 0 for metadata record, might be non-zero for metadata lib record
41 uint16_t lang_list_index;
42 uint16_t stream_num;
43 uint16_t name_length;
44 uint16_t data_type;
45 uint32_t data_length;
46 uint16_t* name;
47 void* data;
48 } ASF_meta_record_t;
50 static char* get_ucs2str(const uint16_t* inbuf, uint16_t inlen)
52 char* outbuf = calloc(inlen, 2);
53 char* q;
54 int i;
56 if (!outbuf) {
57 mp_tmsg(MSGT_HEADER, MSGL_ERR, "Memory allocation failed.\n");
58 return NULL;
60 q = outbuf;
61 for (i = 0; i < inlen / 2; i++) {
62 uint8_t tmp;
63 PUT_UTF8(AV_RL16(&inbuf[i]), tmp, *q++ = tmp;)
65 return outbuf;
68 static const char* asf_chunk_type(unsigned char* guid) {
69 static char tmp[60];
70 char *p;
71 int i;
73 switch(ASF_LOAD_GUID_PREFIX(guid)){
74 case ASF_GUID_PREFIX_audio_stream:
75 return "guid_audio_stream";
76 case ASF_GUID_PREFIX_ext_audio_stream:
77 return "guid_ext_audio_stream";
78 case ASF_GUID_PREFIX_ext_stream_embed_stream_header:
79 return "guid_ext_stream_embed_stream_header";
80 case ASF_GUID_PREFIX_video_stream:
81 return "guid_video_stream";
82 case ASF_GUID_PREFIX_audio_conceal_none:
83 return "guid_audio_conceal_none";
84 case ASF_GUID_PREFIX_audio_conceal_interleave:
85 return "guid_audio_conceal_interleave";
86 case ASF_GUID_PREFIX_header:
87 return "guid_header";
88 case ASF_GUID_PREFIX_data_chunk:
89 return "guid_data_chunk";
90 case ASF_GUID_PREFIX_index_chunk:
91 return "guid_index_chunk";
92 case ASF_GUID_PREFIX_stream_header:
93 return "guid_stream_header";
94 case ASF_GUID_PREFIX_header_2_0:
95 return "guid_header_2_0";
96 case ASF_GUID_PREFIX_file_header:
97 return "guid_file_header";
98 case ASF_GUID_PREFIX_content_desc:
99 return "guid_content_desc";
100 case ASF_GUID_PREFIX_dvr_ms_timing_rep_data:
101 return "guid_dvr_ms_timing_rep_data";
102 case ASF_GUID_PREFIX_dvr_ms_vid_frame_rep_data:
103 return "guid_dvr_ms_vid_frame_rep_data";
104 default:
105 strcpy(tmp, "unknown guid ");
106 p = tmp + strlen(tmp);
107 for (i = 0; i < 16; i++) {
108 if ((1 << i) & ((1<<4) | (1<<6) | (1<<8))) *p++ = '-';
109 sprintf(p, "%02x", guid[i]);
110 p += 2;
112 return tmp;
116 int asf_check_header(demuxer_t *demuxer){
117 unsigned char asfhdrguid[16]={0x30,0x26,0xB2,0x75,0x8E,0x66,0xCF,0x11,0xA6,0xD9,0x00,0xAA,0x00,0x62,0xCE,0x6C};
118 struct asf_priv* asf = calloc(1,sizeof(*asf));
119 asf->scrambling_h=asf->scrambling_w=asf->scrambling_b=1;
120 stream_read(demuxer->stream,(char*) &asf->header,sizeof(asf->header)); // header obj
121 le2me_ASF_header_t(&asf->header); // swap to machine endian
122 // for(i=0;i<16;i++) printf(" %02X",temp[i]);printf("\n");
123 // for(i=0;i<16;i++) printf(" %02X",asfhdrguid[i]);printf("\n");
124 if(memcmp(asfhdrguid,asf->header.objh.guid,16)){
125 mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: not ASF guid!\n");
126 free(asf);
127 return 0; // not ASF guid
129 if(asf->header.cno>256){
130 mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: invalid subchunks_no %d\n",(int) asf->header.cno);
131 free(asf);
132 return 0; // invalid header???
134 demuxer->priv = asf;
135 return DEMUXER_TYPE_ASF;
138 static int get_ext_stream_properties(char *buf, int buf_len, int stream_num, struct asf_priv* asf, int is_video)
140 int pos=0;
141 uint8_t *buffer = &buf[0];
142 uint64_t avg_ft;
143 unsigned bitrate;
145 while ((pos = find_asf_guid(buf, asf_ext_stream_header, pos, buf_len)) >= 0) {
146 int this_stream_num, stnamect, payct, i;
147 int buf_max_index=pos+50;
148 if (buf_max_index > buf_len) return 0;
149 buffer = &buf[pos];
151 // the following info is available
152 // some of it may be useful but we're skipping it for now
153 // starttime(8 bytes), endtime(8),
154 // leak-datarate(4), bucket-datasize(4), init-bucket-fullness(4),
155 // alt-leak-datarate(4), alt-bucket-datasize(4), alt-init-bucket-fullness(4),
156 // max-object-size(4),
157 // flags(4) (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
159 buffer += 8+8;
160 bitrate = AV_RL32(buffer);
161 buffer += 8*4;
162 this_stream_num=AV_RL16(buffer);buffer+=2;
164 if (this_stream_num == stream_num) {
165 buf_max_index+=14;
166 if (buf_max_index > buf_len) return 0;
167 buffer+=2; //skip stream-language-id-index
168 avg_ft = AV_RL64(buffer); // provided in 100ns units
169 buffer+=8;
170 asf->bps = bitrate / 8;
172 // after this are values for stream-name-count and
173 // payload-extension-system-count
174 // followed by associated info for each
175 stnamect = AV_RL16(buffer);buffer+=2;
176 payct = AV_RL16(buffer);buffer+=2;
178 // need to read stream names if present in order
179 // to get lengths - values are ignored for now
180 for (i=0; i<stnamect; i++) {
181 int stream_name_len;
182 buf_max_index+=4;
183 if (buf_max_index > buf_len) return 0;
184 buffer+=2; //language_id_index
185 stream_name_len = AV_RL16(buffer);buffer+=2;
186 buffer+=stream_name_len; //stream_name
187 buf_max_index+=stream_name_len;
188 if (buf_max_index > buf_len) return 0;
191 if (is_video) {
192 asf->vid_repdata_count = payct;
193 asf->vid_repdata_sizes = malloc(payct*sizeof(int));
194 } else {
195 asf->aud_repdata_count = payct;
196 asf->aud_repdata_sizes = malloc(payct*sizeof(int));
199 for (i=0; i<payct; i++) {
200 int payload_len;
201 buf_max_index+=22;
202 if (buf_max_index > buf_len) return 0;
203 // Each payload extension definition starts with a GUID.
204 // In dvr-ms files one of these indicates the presence an
205 // extension that contains pts values and this is always present
206 // in the video and audio streams.
207 // Another GUID indicates the presence of an extension
208 // that contains useful video frame demuxing information.
209 // Note that the extension data in each packet does not contain
210 // these GUIDs and that this header section defines the order the data
211 // will appear in.
212 if (memcmp(buffer, asf_dvr_ms_timing_rep_data, 16) == 0) {
213 if (is_video)
214 asf->vid_ext_timing_index = i;
215 else
216 asf->aud_ext_timing_index = i;
217 } else if (is_video && memcmp(buffer, asf_dvr_ms_vid_frame_rep_data, 16) == 0)
218 asf->vid_ext_frame_index = i;
219 buffer+=16;
221 payload_len = AV_RL16(buffer);buffer+=2;
223 if (is_video)
224 asf->vid_repdata_sizes[i] = payload_len;
225 else
226 asf->aud_repdata_sizes[i] = payload_len;
227 buffer+=4;//sys_len
230 return 1;
233 return 1;
236 #define CHECKDEC(l, n) if (((l) -= (n)) < 0) return 0
237 static char* read_meta_record(ASF_meta_record_t* dest, char* buf,
238 int* buf_len)
240 CHECKDEC(*buf_len, 2 + 2 + 2 + 2 + 4);
241 dest->lang_list_index = AV_RL16(buf);
242 dest->stream_num = AV_RL16(&buf[2]);
243 dest->name_length = AV_RL16(&buf[4]);
244 dest->data_type = AV_RL16(&buf[6]);
245 dest->data_length = AV_RL32(&buf[8]);
246 buf += 2 + 2 + 2 + 2 + 4;
247 CHECKDEC(*buf_len, dest->name_length);
248 dest->name = (uint16_t*)buf;
249 buf += dest->name_length;
250 CHECKDEC(*buf_len, dest->data_length);
251 dest->data = buf;
252 buf += dest->data_length;
253 return buf;
256 static int get_meta(char *buf, int buf_len, int this_stream_num,
257 float* asp_ratio)
259 int pos = 0;
260 uint16_t records_count;
261 uint16_t x = 0, y = 0;
263 if ((pos = find_asf_guid(buf, asf_metadata_header, pos, buf_len)) < 0)
264 return 0;
266 CHECKDEC(buf_len, pos);
267 buf += pos;
268 CHECKDEC(buf_len, 2);
269 records_count = AV_RL16(buf);
270 buf += 2;
272 while (records_count--) {
273 ASF_meta_record_t record_entry;
274 char* name;
276 if (!(buf = read_meta_record(&record_entry, buf, &buf_len)))
277 return 0;
278 /* reserved, must be zero */
279 if (record_entry.lang_list_index)
280 continue;
281 /* match stream number: 0 to match all */
282 if (record_entry.stream_num && record_entry.stream_num != this_stream_num)
283 continue;
284 if (!(name = get_ucs2str(record_entry.name, record_entry.name_length))) {
285 mp_tmsg(MSGT_HEADER, MSGL_ERR, "Memory allocation failed.\n");
286 continue;
288 if (strcmp(name, "AspectRatioX") == 0)
289 x = AV_RL16(record_entry.data);
290 else if (strcmp(name, "AspectRatioY") == 0)
291 y = AV_RL16(record_entry.data);
292 free(name);
294 if (x && y) {
295 *asp_ratio = (float)x / (float)y;
296 return 1;
298 return 0;
301 static int is_drm(char* buf, int buf_len)
303 uint32_t data_len, type_len, key_len, url_len;
304 int pos = find_asf_guid(buf, asf_content_encryption, 0, buf_len);
306 if (pos < 0)
307 return 0;
309 CHECKDEC(buf_len, pos + 4);
310 buf += pos;
311 data_len = AV_RL32(buf);
312 buf += 4;
313 CHECKDEC(buf_len, data_len);
314 buf += data_len;
315 type_len = AV_RL32(buf);
316 if (type_len < 4)
317 return 0;
318 CHECKDEC(buf_len, 4 + type_len + 4);
319 buf += 4;
321 if (buf[0] != 'D' || buf[1] != 'R' || buf[2] != 'M' || buf[3] != '\0')
322 return 0;
324 buf += type_len;
325 key_len = AV_RL32(buf);
326 CHECKDEC(buf_len, key_len + 4);
327 buf += 4;
329 buf[key_len - 1] = '\0';
330 mp_msg(MSGT_HEADER, MSGL_V, "DRM Key ID: %s\n", buf);
332 buf += key_len;
333 url_len = AV_RL32(buf);
334 CHECKDEC(buf_len, url_len);
335 buf += 4;
337 buf[url_len - 1] = '\0';
338 mp_tmsg(MSGT_HEADER, MSGL_INFO, "DRM License URL: %s\n", buf);
339 return 1;
342 static int asf_init_audio_stream(demuxer_t *demuxer,struct asf_priv* asf, sh_audio_t* sh_audio, ASF_stream_header_t *streamh, int *ppos, uint8_t** buf, char *hdr, unsigned int hdr_len)
344 uint8_t *buffer = *buf;
345 int pos = *ppos;
347 sh_audio->wf=calloc(FFMAX(streamh->type_size, sizeof(*sh_audio->wf)), 1);
348 memcpy(sh_audio->wf,buffer,streamh->type_size);
349 le2me_WAVEFORMATEX(sh_audio->wf);
350 sh_audio->format=sh_audio->wf->wFormatTag;
351 if( mp_msg_test(MSGT_HEADER,MSGL_V) ) print_wave_header(sh_audio->wf,MSGL_V);
352 if(ASF_LOAD_GUID_PREFIX(streamh->concealment)==ASF_GUID_PREFIX_audio_conceal_interleave){
353 buffer = &hdr[pos];
354 pos += streamh->stream_size;
355 if (pos > hdr_len) return 0;
356 asf->scrambling_h=buffer[0];
357 asf->scrambling_w=(buffer[2]<<8)|buffer[1];
358 asf->scrambling_b=(buffer[4]<<8)|buffer[3];
359 if(asf->scrambling_b>0){
360 asf->scrambling_w/=asf->scrambling_b;
362 } else {
363 asf->scrambling_b=asf->scrambling_h=asf->scrambling_w=1;
365 mp_msg(MSGT_HEADER,MSGL_V,"ASF: audio scrambling: %d x %d x %d\n",asf->scrambling_h,asf->scrambling_w,asf->scrambling_b);
366 return 1;
369 static int find_backwards_asf_guid(char *buf, const char *guid, int cur_pos)
371 int i;
372 for (i=cur_pos-16; i>0; i--) {
373 if (memcmp(&buf[i], guid, 16) == 0)
374 return i + 16 + 8; // point after guid + length
376 return -1;
379 int read_asf_header(demuxer_t *demuxer,struct asf_priv* asf){
380 int hdr_len = asf->header.objh.size - sizeof(asf->header);
381 int hdr_skip = 0;
382 char *hdr = NULL;
383 char guid_buffer[16];
384 int pos, start = stream_tell(demuxer->stream);
385 uint32_t* streams = NULL;
386 int audio_streams=0;
387 int video_streams=0;
388 uint16_t stream_count=0;
389 int best_video = -1;
390 int best_audio = -1;
391 uint64_t data_len;
392 ASF_stream_header_t *streamh;
393 uint8_t *buffer;
394 int audio_pos=0;
396 if(hdr_len < 0) {
397 mp_msg(MSGT_HEADER, MSGL_FATAL, "Header size is too small.\n");
398 return 0;
401 if (hdr_len > 1024 * 1024) {
402 mp_tmsg(MSGT_HEADER, MSGL_ERR, "FATAL: header size bigger than 1 MB (%d)!\nPlease contact MPlayer authors, and upload/send this file.\n",
403 hdr_len);
404 hdr_skip = hdr_len - 1024 * 1024;
405 hdr_len = 1024 * 1024;
407 hdr = malloc(hdr_len);
408 if (!hdr) {
409 mp_tmsg(MSGT_HEADER, MSGL_FATAL, "Could not allocate %d bytes for header.\n",
410 hdr_len);
411 return 0;
413 stream_read(demuxer->stream, hdr, hdr_len);
414 if (hdr_skip)
415 stream_skip(demuxer->stream, hdr_skip);
416 if (stream_eof(demuxer->stream)) {
417 mp_tmsg(MSGT_HEADER, MSGL_FATAL, "EOF while reading ASF header, broken/incomplete file?\n");
418 goto err_out;
421 if (is_drm(hdr, hdr_len))
422 mp_tmsg(MSGT_HEADER, MSGL_FATAL, "This file has been encumbered with DRM encryption, it will not play in MPlayer!\n");
424 if ((pos = find_asf_guid(hdr, asf_ext_stream_audio, 0, hdr_len)) >= 0)
426 // Special case: found GUID for dvr-ms audio.
427 // Now skip back to associated stream header.
428 int sh_pos=0;
430 sh_pos = find_backwards_asf_guid(hdr, asf_stream_header_guid, pos);
432 if (sh_pos > 0) {
433 sh_audio_t *sh_audio;
435 mp_msg(MSGT_HEADER, MSGL_V, "read_asf_header found dvr-ms audio stream header pos=%d\n", sh_pos);
436 // found audio stream header - following code reads header and
437 // initializes audio stream.
438 audio_pos = pos - 16 - 8;
439 streamh = (ASF_stream_header_t *)&hdr[sh_pos];
440 le2me_ASF_stream_header_t(streamh);
441 audio_pos += 64; //16+16+4+4+4+16+4;
442 buffer = &hdr[audio_pos];
443 sh_audio=new_sh_audio(demuxer,streamh->stream_no & 0x7F);
444 sh_audio->needs_parsing = 1;
445 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Audio stream found, -aid %d\n", "asfheader", streamh->stream_no & 0x7F);
446 ++audio_streams;
447 if (!asf_init_audio_stream(demuxer, asf, sh_audio, streamh, &audio_pos, &buffer, hdr, hdr_len))
448 goto len_err_out;
449 if (!get_ext_stream_properties(hdr, hdr_len, streamh->stream_no, asf, 0))
450 goto len_err_out;
453 // find stream headers
454 // only reset pos if we didnt find dvr_ms audio stream
455 // if we did find it then we want to avoid reading its header twice
456 if (audio_pos == 0)
457 pos = 0;
459 while ((pos = find_asf_guid(hdr, asf_stream_header_guid, pos, hdr_len)) >= 0)
461 streamh = (ASF_stream_header_t *)&hdr[pos];
462 pos += sizeof(ASF_stream_header_t);
463 if (pos > hdr_len) goto len_err_out;
464 le2me_ASF_stream_header_t(streamh);
465 mp_msg(MSGT_HEADER, MSGL_V, "stream type: %s\n",
466 asf_chunk_type(streamh->type));
467 mp_msg(MSGT_HEADER, MSGL_V, "stream concealment: %s\n",
468 asf_chunk_type(streamh->concealment));
469 mp_msg(MSGT_HEADER, MSGL_V, "type: %d bytes, stream: %d bytes ID: %d\n",
470 (int)streamh->type_size, (int)streamh->stream_size,
471 (int)streamh->stream_no);
472 mp_msg(MSGT_HEADER, MSGL_V, "unk1: %lX unk2: %X\n",
473 (unsigned long)streamh->unk1, (unsigned int)streamh->unk2);
474 mp_msg(MSGT_HEADER, MSGL_V, "FILEPOS=0x%X\n", pos + start);
475 // type-specific data:
476 buffer = &hdr[pos];
477 pos += streamh->type_size;
478 if (pos > hdr_len) goto len_err_out;
479 switch(ASF_LOAD_GUID_PREFIX(streamh->type)){
480 case ASF_GUID_PREFIX_audio_stream: {
481 sh_audio_t* sh_audio=new_sh_audio(demuxer,streamh->stream_no & 0x7F);
482 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Audio stream found, -aid %d\n", "asfheader", streamh->stream_no & 0x7F);
483 ++audio_streams;
484 if (!asf_init_audio_stream(demuxer, asf, sh_audio, streamh, &pos, &buffer, hdr, hdr_len))
485 goto len_err_out;
486 //if(demuxer->audio->id==-1) demuxer->audio->id=streamh.stream_no & 0x7F;
487 break;
489 case ASF_GUID_PREFIX_video_stream: {
490 unsigned int len;
491 float asp_ratio;
492 sh_video_t* sh_video=new_sh_video(demuxer,streamh->stream_no & 0x7F);
493 mp_tmsg(MSGT_DEMUX, MSGL_INFO, "[%s] Video stream found, -vid %d\n", "asfheader", streamh->stream_no & 0x7F);
494 len=streamh->type_size-(4+4+1+2);
495 ++video_streams;
496 // sh_video->bih=malloc(chunksize); memset(sh_video->bih,0,chunksize);
497 sh_video->bih=calloc((len<sizeof(*sh_video->bih))?sizeof(*sh_video->bih):len,1);
498 memcpy(sh_video->bih,&buffer[4+4+1+2],len);
499 le2me_BITMAPINFOHEADER(sh_video->bih);
500 if (sh_video->bih->biSize > len && sh_video->bih->biSize > sizeof(*sh_video->bih))
501 sh_video->bih->biSize = len;
502 if (sh_video->bih->biCompression == mmioFOURCC('D', 'V', 'R', ' ')) {
503 //mp_tmsg(MSGT_DEMUXER, MSGL_WARN, "DVR will probably only work with libavformat, try -demuxer 35 if you have problems\n");
504 //sh_video->fps=(float)sh_video->video.dwRate/(float)sh_video->video.dwScale;
505 //sh_video->frametime=(float)sh_video->video.dwScale/(float)sh_video->video.dwRate;
506 asf->asf_frame_state=-1;
507 asf->asf_frame_start_found=0;
508 asf->asf_is_dvr_ms=1;
509 asf->dvr_last_vid_pts=0.0;
510 } else asf->asf_is_dvr_ms=0;
511 if (!get_ext_stream_properties(hdr, hdr_len, streamh->stream_no, asf, 1))
512 goto len_err_out;
513 if (get_meta(hdr, hdr_len, streamh->stream_no, &asp_ratio)) {
514 sh_video->aspect = asp_ratio * sh_video->bih->biWidth /
515 sh_video->bih->biHeight;
517 sh_video->i_bps = asf->bps;
519 if( mp_msg_test(MSGT_DEMUX,MSGL_V) ) print_video_header(sh_video->bih, MSGL_V);
520 //asf_video_id=streamh.stream_no & 0x7F;
521 //if(demuxer->video->id==-1) demuxer->video->id=streamh.stream_no & 0x7F;
522 break;
525 // stream-specific data:
526 // stream_read(demuxer->stream,(char*) buffer,streamh.stream_size);
529 // find file header
530 pos = find_asf_guid(hdr, asf_file_header_guid, 0, hdr_len);
531 if (pos >= 0) {
532 ASF_file_header_t *fileh = (ASF_file_header_t *)&hdr[pos];
533 pos += sizeof(ASF_file_header_t);
534 if (pos > hdr_len) goto len_err_out;
535 le2me_ASF_file_header_t(fileh);
536 mp_msg(MSGT_HEADER, MSGL_V, "ASF: packets: %d flags: %d "
537 "max_packet_size: %d min_packet_size: %d max_bitrate: %d "
538 "preroll: %d\n",
539 (int)fileh->num_packets, (int)fileh->flags,
540 (int)fileh->min_packet_size, (int)fileh->max_packet_size,
541 (int)fileh->max_bitrate, (int)fileh->preroll);
542 asf->packetsize=fileh->max_packet_size;
543 asf->packet=malloc(asf->packetsize); // !!!
544 asf->packetrate=fileh->max_bitrate/8.0/(double)asf->packetsize;
545 asf->movielength=(fileh->play_duration-10000*fileh->preroll)/10000000.0;
548 // find content header
549 pos = find_asf_guid(hdr, asf_content_desc_guid, 0, hdr_len);
550 if (pos >= 0) {
551 ASF_content_description_t *contenth = (ASF_content_description_t *)&hdr[pos];
552 char *string=NULL;
553 uint16_t* wstring = NULL;
554 uint16_t len;
555 pos += sizeof(ASF_content_description_t);
556 if (pos > hdr_len) goto len_err_out;
557 le2me_ASF_content_description_t(contenth);
558 mp_msg(MSGT_HEADER,MSGL_V,"\n");
559 // extract the title
560 if((len = contenth->title_size) != 0) {
561 wstring = (uint16_t*)&hdr[pos];
562 pos += len;
563 if (pos > hdr_len) goto len_err_out;
564 if ((string = get_ucs2str(wstring, len))) {
565 mp_msg(MSGT_HEADER,MSGL_V," Title: %s\n", string);
566 demux_info_add(demuxer, "title", string);
567 free(string);
570 // extract the author
571 if((len = contenth->author_size) != 0) {
572 wstring = (uint16_t*)&hdr[pos];
573 pos += len;
574 if (pos > hdr_len) goto len_err_out;
575 if ((string = get_ucs2str(wstring, len))) {
576 mp_msg(MSGT_HEADER,MSGL_V," Author: %s\n", string);
577 demux_info_add(demuxer, "author", string);
578 free(string);
581 // extract the copyright
582 if((len = contenth->copyright_size) != 0) {
583 wstring = (uint16_t*)&hdr[pos];
584 pos += len;
585 if (pos > hdr_len) goto len_err_out;
586 if ((string = get_ucs2str(wstring, len))) {
587 mp_msg(MSGT_HEADER,MSGL_V," Copyright: %s\n", string);
588 demux_info_add(demuxer, "copyright", string);
589 free(string);
592 // extract the comment
593 if((len = contenth->comment_size) != 0) {
594 wstring = (uint16_t*)&hdr[pos];
595 pos += len;
596 if (pos > hdr_len) goto len_err_out;
597 if ((string = get_ucs2str(wstring, len))) {
598 mp_msg(MSGT_HEADER,MSGL_V," Comment: %s\n", string);
599 demux_info_add(demuxer, "comments", string);
600 free(string);
603 // extract the rating
604 if((len = contenth->rating_size) != 0) {
605 wstring = (uint16_t*)&hdr[pos];
606 pos += len;
607 if (pos > hdr_len) goto len_err_out;
608 if ((string = get_ucs2str(wstring, len))) {
609 mp_msg(MSGT_HEADER,MSGL_V," Rating: %s\n", string);
610 free(string);
613 mp_msg(MSGT_HEADER,MSGL_V,"\n");
616 // find content header
617 pos = find_asf_guid(hdr, asf_stream_group_guid, 0, hdr_len);
618 if (pos >= 0) {
619 int max_streams = (hdr_len - pos - 2) / 6;
620 uint16_t stream_id, i;
621 uint32_t max_bitrate;
622 char *ptr = &hdr[pos];
623 mp_msg(MSGT_HEADER,MSGL_V,"============ ASF Stream group == START ===\n");
624 if(max_streams <= 0) goto len_err_out;
625 stream_count = AV_RL16(ptr);
626 ptr += sizeof(uint16_t);
627 if(stream_count > max_streams) stream_count = max_streams;
628 if(stream_count > 0)
629 streams = malloc(2*stream_count*sizeof(uint32_t));
630 mp_msg(MSGT_HEADER,MSGL_V," stream count=[0x%x][%u]\n", stream_count, stream_count );
631 for( i=0 ; i<stream_count ; i++ ) {
632 stream_id = AV_RL16(ptr);
633 ptr += sizeof(uint16_t);
634 max_bitrate = AV_RL32(ptr);
635 ptr += sizeof(uint32_t);
636 mp_msg(MSGT_HEADER,MSGL_V," stream id=[0x%x][%u]\n", stream_id, stream_id );
637 mp_msg(MSGT_HEADER,MSGL_V," max bitrate=[0x%x][%u]\n", max_bitrate, max_bitrate );
638 streams[2*i] = stream_id;
639 streams[2*i+1] = max_bitrate;
641 mp_msg(MSGT_HEADER,MSGL_V,"============ ASF Stream group == END ===\n");
643 free(hdr);
644 hdr = NULL;
645 start = stream_tell(demuxer->stream); // start of first data chunk
646 stream_read(demuxer->stream, guid_buffer, 16);
647 if (memcmp(guid_buffer, asf_data_chunk_guid, 16) != 0) {
648 mp_tmsg(MSGT_HEADER, MSGL_FATAL, "No data chunk following header!\n");
649 free(streams);
650 streams = NULL;
651 return 0;
653 // read length of chunk
654 data_len = stream_read_qword_le(demuxer->stream);
655 demuxer->movi_start = stream_tell(demuxer->stream) + 26;
656 demuxer->movi_end = start + data_len;
657 mp_msg(MSGT_HEADER, MSGL_V, "Found movie at 0x%X - 0x%X\n",
658 (int)demuxer->movi_start, (int)demuxer->movi_end);
660 if(streams) {
661 // stream selection is done in the network code, it shouldn't be done here
662 // as the servers often do not care about what we requested.
663 #if 0
664 uint32_t vr = 0, ar = 0,i;
665 #ifdef CONFIG_NETWORKING
666 if( demuxer->stream->streaming_ctrl!=NULL ) {
667 if( demuxer->stream->streaming_ctrl->bandwidth!=0 && demuxer->stream->streaming_ctrl->data!=NULL ) {
668 best_audio = ((asf_http_streaming_ctrl_t*)demuxer->stream->streaming_ctrl->data)->audio_id;
669 best_video = ((asf_http_streaming_ctrl_t*)demuxer->stream->streaming_ctrl->data)->video_id;
671 } else
672 #endif
673 for(i = 0; i < stream_count; i++) {
674 uint32_t id = streams[2*i];
675 uint32_t rate = streams[2*i+1];
676 if(demuxer->v_streams[id] && rate > vr) {
677 vr = rate;
678 best_video = id;
679 } else if(demuxer->a_streams[id] && rate > ar) {
680 ar = rate;
681 best_audio = id;
684 #endif
685 free(streams);
686 streams = NULL;
689 mp_msg(MSGT_HEADER,MSGL_V,"ASF: %d audio and %d video streams found\n",audio_streams,video_streams);
690 if(!audio_streams) demuxer->audio->id=-2; // nosound
691 else if(best_audio > 0 && demuxer->audio->id == -1) demuxer->audio->id=best_audio;
692 if(!video_streams){
693 if(!audio_streams){
694 mp_tmsg(MSGT_HEADER,MSGL_ERR,"ASF: no audio or video headers found - broken file?\n");
695 return 0;
697 demuxer->video->id=-2; // audio-only
698 } else if (best_video > 0 && demuxer->video->id == -1) demuxer->video->id = best_video;
700 #if 0
701 if( mp_msg_test(MSGT_HEADER,MSGL_V) ){
702 printf("ASF duration: %d\n",(int)fileh.duration);
703 printf("ASF start pts: %d\n",(int)fileh.start_timestamp);
704 printf("ASF end pts: %d\n",(int)fileh.end_timestamp);
706 #endif
708 return 1;
710 len_err_out:
711 mp_tmsg(MSGT_HEADER, MSGL_FATAL, "Invalid length in ASF header!\n");
712 err_out:
713 free(hdr);
714 free(streams);
715 return 0;