Fix indention which was off by 1 space.
[libav.git] / libavformat / rmdec.c
CommitLineData
de6d9b64 1/*
7b2a2ce5 2 * "Real" compatible demuxer.
19720f15 3 * Copyright (c) 2000, 2001 Fabrice Bellard.
de6d9b64 4 *
b78e7197
DB
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
de6d9b64 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
de6d9b64 16 *
19720f15 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 20 */
245976da
DB
21
22#include "libavutil/avstring.h"
de6d9b64 23#include "avformat.h"
ba614729 24#include "rm.h"
1edddc99 25
ba614729 26struct RMStream {
0b4ff0c9 27 AVPacket pkt; ///< place to store merged video frame / reordered audio data
1edddc99
RB
28 int videobufsize; ///< current assembled frame size
29 int videobufpos; ///< position for the next slice in the video buffer
30 int curpic_num; ///< picture number of current frame
31 int cur_slice, slices;
32 int64_t pktpos; ///< first slice position in file
33 /// Audio descrambling matrix parameters
1edddc99
RB
34 int64_t audiotimestamp; ///< Audio packet timestamp
35 int sub_packet_cnt; // Subpacket counter, used while reading
36 int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container
ba614729
RB
37 int audio_framesize; /// Audio frame size from container
38 int sub_packet_lengths[16]; /// Length of each subpacket
39};
40
41typedef struct {
42 int nb_packets;
43 int old_format;
44 int current_stream;
45 int remaining_len;
1edddc99
RB
46 int audio_stream_num; ///< Stream number for audio packets
47 int audio_pkt_cnt; ///< Output packet counter
1edddc99 48} RMDemuxContext;
de6d9b64 49
36cf20f5 50static inline void get_strl(ByteIOContext *pb, char *buf, int buf_size, int len)
de6d9b64 51{
36cf20f5 52 int i;
28263f5f 53 char *q, r;
de6d9b64 54
de6d9b64
FB
55 q = buf;
56 for(i=0;i<len;i++) {
28263f5f 57 r = get_byte(pb);
de6d9b64 58 if (i < buf_size - 1)
28263f5f 59 *q++ = r;
de6d9b64 60 }
28263f5f 61 if (buf_size > 0) *q = '\0';
de6d9b64
FB
62}
63
36cf20f5 64static void get_str16(ByteIOContext *pb, char *buf, int buf_size)
de6d9b64 65{
36cf20f5
RB
66 get_strl(pb, buf, buf_size, get_be16(pb));
67}
de6d9b64 68
36cf20f5
RB
69static void get_str8(ByteIOContext *pb, char *buf, int buf_size)
70{
71 get_strl(pb, buf, buf_size, get_byte(pb));
de6d9b64
FB
72}
73
ba614729
RB
74RMStream *ff_rm_alloc_rmstream (void)
75{
76 RMStream *rms = av_mallocz(sizeof(RMStream));
77 rms->curpic_num = -1;
78 return rms;
79}
80
81void ff_rm_free_rmstream (RMStream *rms)
82{
0b4ff0c9 83 av_free_packet(&rms->pkt);
ba614729
RB
84}
85
fcc995a5 86static int rm_read_audio_stream_info(AVFormatContext *s, ByteIOContext *pb,
886e89d0 87 AVStream *st, RMStream *ast, int read_all)
c9510803 88{
1e4668d1 89 char buf[256];
c9510803 90 uint32_t version;
c9510803
FB
91
92 /* ra type header */
93 version = get_be32(pb); /* version */
94 if (((version >> 16) & 0xff) == 3) {
1e4668d1 95 int64_t startpos = url_ftell(pb);
b9b2b8c9 96 url_fskip(pb, 14);
c9510803
FB
97 get_str8(pb, s->title, sizeof(s->title));
98 get_str8(pb, s->author, sizeof(s->author));
99 get_str8(pb, s->copyright, sizeof(s->copyright));
100 get_str8(pb, s->comment, sizeof(s->comment));
1e4668d1 101 if ((startpos + (version & 0xffff)) >= url_ftell(pb) + 2) {
76f940b2
RB
102 // fourcc (should always be "lpcJ")
103 get_byte(pb);
104 get_str8(pb, buf, sizeof(buf));
1e4668d1
RT
105 }
106 // Skip extra header crap (this should never happen)
107 if ((startpos + (version & 0xffff)) > url_ftell(pb))
108 url_fskip(pb, (version & 0xffff) + startpos - url_ftell(pb));
01f4895c
MN
109 st->codec->sample_rate = 8000;
110 st->codec->channels = 1;
111 st->codec->codec_type = CODEC_TYPE_AUDIO;
112 st->codec->codec_id = CODEC_ID_RA_144;
c9510803 113 } else {
e0f7e329 114 int flavor, sub_packet_h, coded_framesize, sub_packet_size;
c9510803
FB
115 /* old version (4) */
116 get_be32(pb); /* .ra4 */
72aef198
MN
117 get_be32(pb); /* data size */
118 get_be16(pb); /* version2 */
c9510803 119 get_be32(pb); /* header size */
72aef198 120 flavor= get_be16(pb); /* add codec info / flavor */
ba614729 121 ast->coded_framesize = coded_framesize = get_be32(pb); /* coded frame size */
c9510803
FB
122 get_be32(pb); /* ??? */
123 get_be32(pb); /* ??? */
124 get_be32(pb); /* ??? */
ba614729 125 ast->sub_packet_h = sub_packet_h = get_be16(pb); /* 1 */
01f4895c 126 st->codec->block_align= get_be16(pb); /* frame size */
ba614729 127 ast->sub_packet_size = sub_packet_size = get_be16(pb); /* sub packet size */
72aef198 128 get_be16(pb); /* ??? */
e0f7e329 129 if (((version >> 16) & 0xff) == 5) {
127ed7b0
RB
130 get_be16(pb); get_be16(pb); get_be16(pb);
131 }
01f4895c 132 st->codec->sample_rate = get_be16(pb);
c9510803 133 get_be32(pb);
01f4895c 134 st->codec->channels = get_be16(pb);
e0f7e329
BL
135 if (((version >> 16) & 0xff) == 5) {
136 get_be32(pb);
b9b2b8c9 137 get_buffer(pb, buf, 4);
bb270c08
DB
138 buf[4] = 0;
139 } else {
e344c1ea
SH
140 get_str8(pb, buf, sizeof(buf)); /* desc */
141 get_str8(pb, buf, sizeof(buf)); /* desc */
bb270c08 142 }
01f4895c 143 st->codec->codec_type = CODEC_TYPE_AUDIO;
c9510803 144 if (!strcmp(buf, "dnet")) {
01f4895c 145 st->codec->codec_id = CODEC_ID_AC3;
bf415121 146 st->need_parsing = AVSTREAM_PARSE_FULL;
72aef198 147 } else if (!strcmp(buf, "28_8")) {
01f4895c 148 st->codec->codec_id = CODEC_ID_RA_288;
e0f7e329 149 st->codec->extradata_size= 0;
ba614729 150 ast->audio_framesize = st->codec->block_align;
e0f7e329 151 st->codec->block_align = coded_framesize;
a443a253 152
ba614729
RB
153 if(ast->audio_framesize >= UINT_MAX / sub_packet_h){
154 av_log(s, AV_LOG_ERROR, "ast->audio_framesize * sub_packet_h too large\n");
a443a253
MN
155 return -1;
156 }
157
0b4ff0c9 158 av_new_packet(&ast->pkt, ast->audio_framesize * sub_packet_h);
2426bb96 159 } else if ((!strcmp(buf, "cook")) || (!strcmp(buf, "atrc")) || (!strcmp(buf, "sipr"))) {
b9b2b8c9 160 int codecdata_length;
e0f7e329
BL
161 get_be16(pb); get_byte(pb);
162 if (((version >> 16) & 0xff) == 5)
163 get_byte(pb);
164 codecdata_length = get_be32(pb);
a443a253
MN
165 if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
166 av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
167 return -1;
168 }
169
f23938f5
MN
170 if(sub_packet_size <= 0){
171 av_log(s, AV_LOG_ERROR, "sub_packet_size is invalid\n");
172 return -1;
173 }
174
10e26bc7 175 if (!strcmp(buf, "cook")) st->codec->codec_id = CODEC_ID_COOK;
2426bb96 176 else if (!strcmp(buf, "sipr")) st->codec->codec_id = CODEC_ID_SIPR;
10e26bc7 177 else st->codec->codec_id = CODEC_ID_ATRAC3;
e0f7e329 178 st->codec->extradata_size= codecdata_length;
d76319b1 179 st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
b9b2b8c9 180 get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
ba614729
RB
181 ast->audio_framesize = st->codec->block_align;
182 st->codec->block_align = ast->sub_packet_size;
a443a253 183
ba614729 184 if(ast->audio_framesize >= UINT_MAX / sub_packet_h){
a443a253
MN
185 av_log(s, AV_LOG_ERROR, "rm->audio_framesize * sub_packet_h too large\n");
186 return -1;
187 }
188
0b4ff0c9 189 av_new_packet(&ast->pkt, ast->audio_framesize * sub_packet_h);
a194f595 190 } else if (!strcmp(buf, "raac") || !strcmp(buf, "racp")) {
b9b2b8c9 191 int codecdata_length;
a194f595
RT
192 get_be16(pb); get_byte(pb);
193 if (((version >> 16) & 0xff) == 5)
194 get_byte(pb);
195 st->codec->codec_id = CODEC_ID_AAC;
196 codecdata_length = get_be32(pb);
a9d4a6ef
RT
197 if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
198 av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
199 return -1;
200 }
a194f595
RT
201 if (codecdata_length >= 1) {
202 st->codec->extradata_size = codecdata_length - 1;
203 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
204 get_byte(pb);
b9b2b8c9 205 get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
a194f595 206 }
c9510803 207 } else {
01f4895c 208 st->codec->codec_id = CODEC_ID_NONE;
75e61b0e 209 av_strlcpy(st->codec->codec_name, buf, sizeof(st->codec->codec_name));
c9510803
FB
210 }
211 if (read_all) {
212 get_byte(pb);
213 get_byte(pb);
214 get_byte(pb);
115329f1 215
c9510803
FB
216 get_str8(pb, s->title, sizeof(s->title));
217 get_str8(pb, s->author, sizeof(s->author));
218 get_str8(pb, s->copyright, sizeof(s->copyright));
219 get_str8(pb, s->comment, sizeof(s->comment));
220 }
221 }
a9d4a6ef 222 return 0;
c9510803
FB
223}
224
0fd36362 225int
fcc995a5 226ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb,
886e89d0 227 AVStream *st, RMStream *rst, int codec_data_size)
ff1463dc 228{
ff1463dc 229 unsigned int v;
79d5045d 230 int size;
ff1463dc
RB
231 int64_t codec_pos;
232
15995030 233 av_set_pts_info(st, 64, 1, 1000);
ff1463dc
RB
234 codec_pos = url_ftell(pb);
235 v = get_be32(pb);
236 if (v == MKTAG(0xfd, 'a', 'r', '.')) {
237 /* ra type header */
886e89d0 238 if (rm_read_audio_stream_info(s, pb, st, rst, 0))
ff1463dc
RB
239 return -1;
240 } else {
241 int fps, fps2;
242 if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
243 fail1:
244 av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
245 goto skip;
246 }
247 st->codec->codec_tag = get_le32(pb);
248// av_log(NULL, AV_LOG_DEBUG, "%X %X\n", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));
249 if ( st->codec->codec_tag != MKTAG('R', 'V', '1', '0')
250 && st->codec->codec_tag != MKTAG('R', 'V', '2', '0')
251 && st->codec->codec_tag != MKTAG('R', 'V', '3', '0')
b93dd838
VS
252 && st->codec->codec_tag != MKTAG('R', 'V', '4', '0')
253 && st->codec->codec_tag != MKTAG('R', 'V', 'T', 'R'))
ff1463dc
RB
254 goto fail1;
255 st->codec->width = get_be16(pb);
256 st->codec->height = get_be16(pb);
257 st->codec->time_base.num= 1;
258 fps= get_be16(pb);
259 st->codec->codec_type = CODEC_TYPE_VIDEO;
260 get_be32(pb);
261 fps2= get_be16(pb);
262 get_be16(pb);
263
264 st->codec->extradata_size= codec_data_size - (url_ftell(pb) - codec_pos);
265
266 if(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
267 //check is redundant as get_buffer() will catch this
268 av_log(s, AV_LOG_ERROR, "st->codec->extradata_size too large\n");
269 return -1;
270 }
271 st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
437fd77b
PI
272 if (!st->codec->extradata)
273 return AVERROR(ENOMEM);
ff1463dc
RB
274 get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
275
276// av_log(NULL, AV_LOG_DEBUG, "fps= %d fps2= %d\n", fps, fps2);
277 st->codec->time_base.den = fps * st->codec->time_base.num;
278 switch(((uint8_t*)st->codec->extradata)[4]>>4){
279 case 1: st->codec->codec_id = CODEC_ID_RV10; break;
280 case 2: st->codec->codec_id = CODEC_ID_RV20; break;
281 case 3: st->codec->codec_id = CODEC_ID_RV30; break;
282 case 4: st->codec->codec_id = CODEC_ID_RV40; break;
283 default: goto fail1;
284 }
285 }
286
ff1463dc
RB
287skip:
288 /* skip codec info */
289 size = url_ftell(pb) - codec_pos;
290 url_fskip(pb, codec_data_size - size);
291
36c9e40a 292 return 0;
ff1463dc
RB
293}
294
295
c9510803
FB
296static int rm_read_header_old(AVFormatContext *s, AVFormatParameters *ap)
297{
1edddc99 298 RMDemuxContext *rm = s->priv_data;
c9510803
FB
299 AVStream *st;
300
301 rm->old_format = 1;
302 st = av_new_stream(s, 0);
303 if (!st)
a9d4a6ef 304 return -1;
886e89d0
RB
305 st->priv_data = ff_rm_alloc_rmstream();
306 return rm_read_audio_stream_info(s, s->pb, st, st->priv_data, 1);
c9510803
FB
307}
308
de6d9b64
FB
309static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
310{
1edddc99 311 RMDemuxContext *rm = s->priv_data;
de6d9b64 312 AVStream *st;
899681cd 313 ByteIOContext *pb = s->pb;
ff1463dc 314 unsigned int tag;
07cb073b 315 int tag_size;
36c32bdd 316 unsigned int start_time, duration;
de6d9b64 317 char buf[128];
5d6ef63f 318 int flags = 0;
de6d9b64 319
c9510803
FB
320 tag = get_le32(pb);
321 if (tag == MKTAG('.', 'r', 'a', 0xfd)) {
322 /* very old .ra format */
323 return rm_read_header_old(s, ap);
324 } else if (tag != MKTAG('.', 'R', 'M', 'F')) {
6f3e0b21 325 return AVERROR(EIO);
c9510803 326 }
de6d9b64
FB
327
328 get_be32(pb); /* header size */
329 get_be16(pb);
330 get_be32(pb);
331 get_be32(pb); /* number of headers */
115329f1 332
de6d9b64
FB
333 for(;;) {
334 if (url_feof(pb))
ccafd472 335 return -1;
de6d9b64
FB
336 tag = get_le32(pb);
337 tag_size = get_be32(pb);
338 get_be16(pb);
339#if 0
115329f1 340 printf("tag=%c%c%c%c (%08x) size=%d\n",
de6d9b64
FB
341 (tag) & 0xff,
342 (tag >> 8) & 0xff,
343 (tag >> 16) & 0xff,
344 (tag >> 24) & 0xff,
345 tag,
346 tag_size);
347#endif
9786bd4d 348 if (tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A'))
ccafd472 349 return -1;
de6d9b64
FB
350 switch(tag) {
351 case MKTAG('P', 'R', 'O', 'P'):
352 /* file header */
353 get_be32(pb); /* max bit rate */
354 get_be32(pb); /* avg bit rate */
355 get_be32(pb); /* max packet size */
356 get_be32(pb); /* avg packet size */
357 get_be32(pb); /* nb packets */
358 get_be32(pb); /* duration */
359 get_be32(pb); /* preroll */
360 get_be32(pb); /* index offset */
361 get_be32(pb); /* data offset */
362 get_be16(pb); /* nb streams */
5d6ef63f 363 flags = get_be16(pb); /* flags */
de6d9b64
FB
364 break;
365 case MKTAG('C', 'O', 'N', 'T'):
36cf20f5
RB
366 get_str16(pb, s->title, sizeof(s->title));
367 get_str16(pb, s->author, sizeof(s->author));
368 get_str16(pb, s->copyright, sizeof(s->copyright));
369 get_str16(pb, s->comment, sizeof(s->comment));
de6d9b64
FB
370 break;
371 case MKTAG('M', 'D', 'P', 'R'):
247eadca 372 st = av_new_stream(s, 0);
de6d9b64 373 if (!st)
ccafd472 374 return AVERROR(ENOMEM);
de6d9b64
FB
375 st->id = get_be16(pb);
376 get_be32(pb); /* max bit rate */
01f4895c 377 st->codec->bit_rate = get_be32(pb); /* bit rate */
de6d9b64
FB
378 get_be32(pb); /* max packet size */
379 get_be32(pb); /* avg packet size */
247eadca 380 start_time = get_be32(pb); /* start time */
de6d9b64 381 get_be32(pb); /* preroll */
247eadca 382 duration = get_be32(pb); /* duration */
c0df9d75
MN
383 st->start_time = start_time;
384 st->duration = duration;
de6d9b64
FB
385 get_str8(pb, buf, sizeof(buf)); /* desc */
386 get_str8(pb, buf, sizeof(buf)); /* mimetype */
01f4895c 387 st->codec->codec_type = CODEC_TYPE_DATA;
886e89d0
RB
388 st->priv_data = ff_rm_alloc_rmstream();
389 if (ff_rm_read_mdpr_codecdata(s, s->pb, st, st->priv_data,
390 get_be32(pb)) < 0)
ff1463dc 391 return -1;
de6d9b64
FB
392 break;
393 case MKTAG('D', 'A', 'T', 'A'):
394 goto header_end;
395 default:
396 /* unknown tag: skip it */
397 url_fskip(pb, tag_size - 10);
398 break;
399 }
400 }
401 header_end:
402 rm->nb_packets = get_be32(pb); /* number of packets */
5d6ef63f
PG
403 if (!rm->nb_packets && (flags & 4))
404 rm->nb_packets = 3600 * 25;
de6d9b64
FB
405 get_be32(pb); /* next data header */
406 return 0;
de6d9b64
FB
407}
408
4c2bc159
MN
409static int get_num(ByteIOContext *pb, int *len)
410{
411 int n, n1;
412
413 n = get_be16(pb);
414 (*len)-=2;
e3052ce7 415 n &= 0x7FFF;
4c2bc159
MN
416 if (n >= 0x4000) {
417 return n - 0x4000;
418 } else {
419 n1 = get_be16(pb);
420 (*len)-=2;
421 return (n << 16) | n1;
422 }
423}
424
c9510803
FB
425/* multiple of 20 bytes for ra144 (ugly) */
426#define RAW_PACKET_SIZE 1000
427
37e85dac 428static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){
1edddc99 429 RMDemuxContext *rm = s->priv_data;
899681cd 430 ByteIOContext *pb = s->pb;
bc17df09
MN
431 int len, num, res, i;
432 AVStream *st;
119cebf4 433 uint32_t state=0xFFFFFFFF;
bc17df09
MN
434
435 while(!url_feof(pb)){
fd31550d 436 *pos= url_ftell(pb) - 3;
bc17df09
MN
437 if(rm->remaining_len > 0){
438 num= rm->current_stream;
439 len= rm->remaining_len;
440 *timestamp = AV_NOPTS_VALUE;
441 *flags= 0;
442 }else{
119cebf4 443 state= (state<<8) + get_byte(pb);
115329f1 444
119cebf4
MN
445 if(state == MKBETAG('I', 'N', 'D', 'X')){
446 len = get_be16(pb) - 6;
447 if(len<0)
448 continue;
449 goto skip;
450 }
115329f1 451
119cebf4 452 if(state > (unsigned)0xFFFF || state < 12)
bc17df09 453 continue;
119cebf4
MN
454 len=state;
455 state= 0xFFFFFFFF;
456
bc17df09
MN
457 num = get_be16(pb);
458 *timestamp = get_be32(pb);
459 res= get_byte(pb); /* reserved */
460 *flags = get_byte(pb); /* flags */
37e85dac 461
115329f1 462
bc17df09
MN
463 len -= 12;
464 }
465 for(i=0;i<s->nb_streams;i++) {
466 st = s->streams[i];
467 if (num == st->id)
468 break;
469 }
470 if (i == s->nb_streams) {
119cebf4 471skip:
bc17df09
MN
472 /* skip packet if unknown number */
473 url_fskip(pb, len);
474 rm->remaining_len -= len;
475 continue;
476 }
477 *stream_index= i;
115329f1 478
bc17df09
MN
479 return len;
480 }
481 return -1;
482}
483
fcc995a5 484static int rm_assemble_video_frame(AVFormatContext *s, ByteIOContext *pb,
ba614729
RB
485 RMDemuxContext *rm, RMStream *vst,
486 AVPacket *pkt, int len)
383b123e 487{
383b123e
KS
488 int hdr, seq, pic_num, len2, pos;
489 int type;
383b123e
KS
490
491 hdr = get_byte(pb); len--;
492 type = hdr >> 6;
f48d5457
MN
493
494 if(type != 3){ // not frame as a part of packet
383b123e 495 seq = get_byte(pb); len--;
f48d5457
MN
496 }
497 if(type != 1){ // not whole frame
383b123e 498 len2 = get_num(pb, &len);
f48d5457 499 pos = get_num(pb, &len);
383b123e 500 pic_num = get_byte(pb); len--;
f48d5457
MN
501 }
502 if(len<0)
503 return -1;
504 rm->remaining_len = len;
505 if(type&1){ // frame, not slice
506 if(type == 3) // frame as a part of packet
507 len= len2;
508 if(rm->remaining_len < len)
e45673cb 509 return -1;
f48d5457 510 rm->remaining_len -= len;
383b123e
KS
511 if(av_new_packet(pkt, len + 9) < 0)
512 return AVERROR(EIO);
513 pkt->data[0] = 0;
514 AV_WL32(pkt->data + 1, 1);
515 AV_WL32(pkt->data + 5, 0);
516 get_buffer(pb, pkt->data + 9, len);
383b123e
KS
517 return 0;
518 }
519 //now we have to deal with single slice
520
ba614729
RB
521 if((seq & 0x7F) == 1 || vst->curpic_num != pic_num){
522 vst->slices = ((hdr & 0x3F) << 1) + 1;
523 vst->videobufsize = len2 + 8*vst->slices + 1;
0b4ff0c9
MN
524 av_free_packet(&vst->pkt); //FIXME this should be output.
525 if(av_new_packet(&vst->pkt, vst->videobufsize) < 0)
52537534 526 return AVERROR(ENOMEM);
ba614729
RB
527 vst->videobufpos = 8*vst->slices + 1;
528 vst->cur_slice = 0;
529 vst->curpic_num = pic_num;
530 vst->pktpos = url_ftell(pb);
383b123e 531 }
e35033e6 532 if(type == 2)
383b123e 533 len = FFMIN(len, pos);
383b123e 534
ba614729 535 if(++vst->cur_slice > vst->slices)
383b123e 536 return 1;
0b4ff0c9
MN
537 AV_WL32(vst->pkt.data - 7 + 8*vst->cur_slice, 1);
538 AV_WL32(vst->pkt.data - 3 + 8*vst->cur_slice, vst->videobufpos - 8*vst->slices - 1);
ba614729 539 if(vst->videobufpos + len > vst->videobufsize)
383b123e 540 return 1;
0b4ff0c9 541 if (get_buffer(pb, vst->pkt.data + vst->videobufpos, len) != len)
383b123e 542 return AVERROR(EIO);
ba614729 543 vst->videobufpos += len;
383b123e
KS
544 rm->remaining_len-= len;
545
ba614729 546 if(type == 2 || (vst->videobufpos) == vst->videobufsize){
188e67ea
MN
547 vst->pkt.data[0] = vst->cur_slice-1;
548 *pkt= vst->pkt;
549 vst->pkt.data=
550 vst->pkt.size= 0;
551 if(vst->slices != vst->cur_slice) //FIXME find out how to set slices correct from the begin
0b4ff0c9 552 memmove(pkt->data + 1 + 8*vst->cur_slice, pkt->data + 1 + 8*vst->slices,
ba614729 553 vst->videobufpos - 1 - 8*vst->slices);
188e67ea
MN
554 pkt->size += 8*(vst->cur_slice - vst->slices);
555 pkt->pts = AV_NOPTS_VALUE;
556 pkt->pos = vst->pktpos;
557 return 0;
383b123e
KS
558 }
559
560 return 1;
561}
562
5c470b91
RB
563static inline void
564rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt)
565{
566 uint8_t *ptr;
567 int j;
568
569 if (st->codec->codec_id == CODEC_ID_AC3) {
570 ptr = pkt->data;
571 for (j=0;j<pkt->size;j+=2) {
572 FFSWAP(int, ptr[0], ptr[1]);
573 ptr += 2;
574 }
575 }
576}
577
0fd36362 578int
fcc995a5 579ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
886e89d0 580 AVStream *st, RMStream *ast, int len, AVPacket *pkt,
afd302fa
RB
581 int *seq, int *flags, int64_t *timestamp)
582{
1edddc99 583 RMDemuxContext *rm = s->priv_data;
afd302fa
RB
584
585 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
586 rm->current_stream= st->id;
51d6852f 587 if(rm_assemble_video_frame(s, pb, rm, ast, pkt, len))
afd302fa
RB
588 return -1; //got partial frame
589 } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
590 if ((st->codec->codec_id == CODEC_ID_RA_288) ||
591 (st->codec->codec_id == CODEC_ID_COOK) ||
2426bb96
BL
592 (st->codec->codec_id == CODEC_ID_ATRAC3) ||
593 (st->codec->codec_id == CODEC_ID_SIPR)) {
afd302fa 594 int x;
ba614729
RB
595 int sps = ast->sub_packet_size;
596 int cfs = ast->coded_framesize;
597 int h = ast->sub_packet_h;
598 int y = ast->sub_packet_cnt;
599 int w = ast->audio_framesize;
afd302fa
RB
600
601 if (*flags & 2)
ba614729 602 y = ast->sub_packet_cnt = 0;
afd302fa 603 if (!y)
ba614729 604 ast->audiotimestamp = *timestamp;
afd302fa
RB
605
606 switch(st->codec->codec_id) {
607 case CODEC_ID_RA_288:
608 for (x = 0; x < h/2; x++)
0b4ff0c9 609 get_buffer(pb, ast->pkt.data+x*2*w+y*cfs, cfs);
afd302fa
RB
610 break;
611 case CODEC_ID_ATRAC3:
612 case CODEC_ID_COOK:
613 for (x = 0; x < w/sps; x++)
0b4ff0c9 614 get_buffer(pb, ast->pkt.data+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps);
afd302fa
RB
615 break;
616 }
617
ba614729 618 if (++(ast->sub_packet_cnt) < h)
afd302fa
RB
619 return -1;
620 else {
ba614729 621 ast->sub_packet_cnt = 0;
afd302fa
RB
622 rm->audio_stream_num = st->index;
623 rm->audio_pkt_cnt = h * w / st->codec->block_align - 1;
624 // Release first audio packet
625 av_new_packet(pkt, st->codec->block_align);
0b4ff0c9 626 memcpy(pkt->data, ast->pkt.data, st->codec->block_align); //FIXME avoid this
ba614729 627 *timestamp = ast->audiotimestamp;
afd302fa
RB
628 *flags = 2; // Mark first packet as keyframe
629 }
630 } else if (st->codec->codec_id == CODEC_ID_AAC) {
631 int x;
632 rm->audio_stream_num = st->index;
ba614729
RB
633 ast->sub_packet_cnt = (get_be16(pb) & 0xf0) >> 4;
634 if (ast->sub_packet_cnt) {
635 for (x = 0; x < ast->sub_packet_cnt; x++)
636 ast->sub_packet_lengths[x] = get_be16(pb);
afd302fa 637 // Release first audio packet
ba614729
RB
638 rm->audio_pkt_cnt = ast->sub_packet_cnt - 1;
639 av_get_packet(pb, pkt, ast->sub_packet_lengths[0]);
afd302fa
RB
640 *flags = 2; // Mark first packet as keyframe
641 }
badbe09a 642 } else {
afd302fa 643 av_get_packet(pb, pkt, len);
e29378ff 644 rm_ac3_swap_bytes(st, pkt);
badbe09a 645 }
afd302fa
RB
646 } else
647 av_get_packet(pb, pkt, len);
648
649 if( (st->discard >= AVDISCARD_NONKEY && !(*flags&2))
650 || st->discard >= AVDISCARD_ALL){
651 av_free_packet(pkt);
652 return -1;
653 }
654
655 pkt->stream_index = st->index;
656
657#if 0
658 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
659 if(st->codec->codec_id == CODEC_ID_RV20){
660 int seq= 128*(pkt->data[2]&0x7F) + (pkt->data[3]>>1);
661 av_log(NULL, AV_LOG_DEBUG, "%d %"PRId64" %d\n", *timestamp, *timestamp*512LL/25, seq);
662
663 seq |= (*timestamp&~0x3FFF);
664 if(seq - *timestamp > 0x2000) seq -= 0x4000;
665 if(seq - *timestamp < -0x2000) seq += 0x4000;
666 }
667 }
668#endif
669
670 pkt->pts= *timestamp;
671 if (*flags & 2)
672 pkt->flags |= PKT_FLAG_KEY;
673
a15ebf34 674 return st->codec->codec_type == CODEC_TYPE_AUDIO ? rm->audio_pkt_cnt : 0;
afd302fa
RB
675}
676
a9f84821 677int
fcc995a5 678ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb,
886e89d0 679 AVStream *st, RMStream *ast, AVPacket *pkt)
d4d1b5fb 680{
1edddc99 681 RMDemuxContext *rm = s->priv_data;
d4d1b5fb
RB
682
683 assert (rm->audio_pkt_cnt > 0);
684
685 if (st->codec->codec_id == CODEC_ID_AAC)
ba614729 686 av_get_packet(pb, pkt, ast->sub_packet_lengths[ast->sub_packet_cnt - rm->audio_pkt_cnt]);
d4d1b5fb
RB
687 else {
688 av_new_packet(pkt, st->codec->block_align);
0b4ff0c9 689 memcpy(pkt->data, ast->pkt.data + st->codec->block_align * //FIXME avoid this
ba614729 690 (ast->sub_packet_h * ast->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
d4d1b5fb
RB
691 st->codec->block_align);
692 }
693 rm->audio_pkt_cnt--;
694 pkt->flags = 0;
695 pkt->stream_index = st->index;
a9f84821
RB
696
697 return rm->audio_pkt_cnt;
d4d1b5fb
RB
698}
699
de6d9b64
FB
700static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
701{
1edddc99 702 RMDemuxContext *rm = s->priv_data;
899681cd 703 ByteIOContext *pb = s->pb;
de6d9b64 704 AVStream *st;
5c470b91 705 int i, len;
37e85dac 706 int64_t timestamp, pos;
bc17df09 707 int flags;
de6d9b64 708
c69e7914 709 if (rm->audio_pkt_cnt) {
e0f7e329
BL
710 // If there are queued audio packet return them first
711 st = s->streams[rm->audio_stream_num];
886e89d0 712 ff_rm_retrieve_cache(s, s->pb, st, st->priv_data, pkt);
c69e7914 713 } else if (rm->old_format) {
ba614729
RB
714 RMStream *ast;
715
c69e7914 716 st = s->streams[0];
ba614729 717 ast = st->priv_data;
c69e7914
RT
718 if (st->codec->codec_id == CODEC_ID_RA_288) {
719 int x, y;
720
ba614729
RB
721 for (y = 0; y < ast->sub_packet_h; y++)
722 for (x = 0; x < ast->sub_packet_h/2; x++)
0b4ff0c9 723 if (get_buffer(pb, ast->pkt.data+x*2*ast->audio_framesize+y*ast->coded_framesize, ast->coded_framesize) <= 0)
6f3e0b21 724 return AVERROR(EIO);
c69e7914 725 rm->audio_stream_num = 0;
ba614729 726 rm->audio_pkt_cnt = ast->sub_packet_h * ast->audio_framesize / st->codec->block_align - 1;
c69e7914
RT
727 // Release first audio packet
728 av_new_packet(pkt, st->codec->block_align);
0b4ff0c9 729 memcpy(pkt->data, ast->pkt.data, st->codec->block_align); //FIXME avoid this
c69e7914
RT
730 pkt->flags |= PKT_FLAG_KEY; // Mark first packet as keyframe
731 pkt->stream_index = 0;
732 } else {
733 /* just read raw bytes */
734 len = RAW_PACKET_SIZE;
735 len= av_get_packet(pb, pkt, len);
736 pkt->stream_index = 0;
737 if (len <= 0) {
6f3e0b21 738 return AVERROR(EIO);
c69e7914
RT
739 }
740 pkt->size = len;
741 }
e29378ff 742 rm_ac3_swap_bytes(st, pkt);
c9510803 743 } else {
37e85dac 744 int seq=1;
b9866ebc 745resync:
37e85dac 746 len=sync(s, &timestamp, &flags, &i, &pos);
bc17df09 747 if(len<0)
6f3e0b21 748 return AVERROR(EIO);
bc17df09
MN
749 st = s->streams[i];
750
886e89d0
RB
751 if (ff_rm_parse_packet (s, s->pb, st, st->priv_data, len, pkt,
752 &seq, &flags, &timestamp) < 0)
b9866ebc 753 goto resync;
d880240e 754
9b41eb37 755 if((flags&2) && (seq&0x7F) == 1)
8f8fae80 756 av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
5d6ef63f
PG
757 }
758
de6d9b64
FB
759 return 0;
760}
761
762static int rm_read_close(AVFormatContext *s)
763{
ba614729
RB
764 int i;
765
766 for (i=0;i<s->nb_streams;i++)
767 ff_rm_free_rmstream(s->streams[i]->priv_data);
e0f7e329 768
de6d9b64
FB
769 return 0;
770}
771
c9a65ca8
FB
772static int rm_probe(AVProbeData *p)
773{
774 /* check file header */
c9510803
FB
775 if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
776 p->buf[2] == 'M' && p->buf[3] == 'F' &&
777 p->buf[4] == 0 && p->buf[5] == 0) ||
778 (p->buf[0] == '.' && p->buf[1] == 'r' &&
779 p->buf[2] == 'a' && p->buf[3] == 0xfd))
c9a65ca8
FB
780 return AVPROBE_SCORE_MAX;
781 else
782 return 0;
783}
784
115329f1 785static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
bc17df09
MN
786 int64_t *ppos, int64_t pos_limit)
787{
1edddc99 788 RMDemuxContext *rm = s->priv_data;
bc17df09 789 int64_t pos, dts;
37e85dac 790 int stream_index2, flags, len, h;
bc17df09
MN
791
792 pos = *ppos;
115329f1 793
bc17df09
MN
794 if(rm->old_format)
795 return AV_NOPTS_VALUE;
796
899681cd 797 url_fseek(s->pb, pos, SEEK_SET);
bc17df09
MN
798 rm->remaining_len=0;
799 for(;;){
37e85dac
MN
800 int seq=1;
801 AVStream *st;
802
803 len=sync(s, &dts, &flags, &stream_index2, &pos);
bc17df09
MN
804 if(len<0)
805 return AV_NOPTS_VALUE;
37e85dac
MN
806
807 st = s->streams[stream_index2];
01f4895c 808 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
899681cd 809 h= get_byte(s->pb); len--;
37e85dac 810 if(!(h & 0x40)){
899681cd 811 seq = get_byte(s->pb); len--;
bc17df09
MN
812 }
813 }
115329f1 814
37e85dac 815 if((flags&2) && (seq&0x7F) == 1){
949b1a13 816// av_log(s, AV_LOG_DEBUG, "%d %d-%d %"PRId64" %d\n", flags, stream_index2, stream_index, dts, seq);
30a43f2d 817 av_add_index_entry(st, pos, dts, 0, 0, AVINDEX_KEYFRAME);
37e85dac
MN
818 if(stream_index2 == stream_index)
819 break;
820 }
821
899681cd 822 url_fskip(s->pb, len);
bc17df09
MN
823 }
824 *ppos = pos;
825 return dts;
826}
827
ff70e601 828AVInputFormat rm_demuxer = {
c9a65ca8 829 "rm",
bde15e74 830 NULL_IF_CONFIG_SMALL("RM format"),
1edddc99 831 sizeof(RMDemuxContext),
c9a65ca8
FB
832 rm_probe,
833 rm_read_header,
834 rm_read_packet,
835 rm_read_close,
bc17df09
MN
836 NULL,
837 rm_read_dts,
c9a65ca8 838};
ff13ba92
RB
839
840AVInputFormat rdt_demuxer = {
841 "rdt",
842 NULL_IF_CONFIG_SMALL("RDT demuxer"),
1edddc99 843 sizeof(RMDemuxContext),
ff13ba92
RB
844 NULL, NULL, NULL, rm_read_close, NULL, NULL
845};