FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/rmdec.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 601 913 65.8%
Functions: 24 27 88.9%
Branches: 314 579 54.2%
Line Branch Exec Source
1 /*
2 * "Real" compatible demuxer.
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <inttypes.h>
23
24 #include "libavutil/avassert.h"
25 #include "libavutil/channel_layout.h"
26 #include "libavutil/internal.h"
27 #include "libavutil/intreadwrite.h"
28 #include "libavutil/dict.h"
29 #include "libavutil/mem.h"
30 #include "avformat.h"
31 #include "avio_internal.h"
32 #include "demux.h"
33 #include "internal.h"
34 #include "rmsipr.h"
35 #include "rm.h"
36
37 #define DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') ///< interleaving for Cooker/ATRAC
38 #define DEINT_ID_INT0 MKTAG('I', 'n', 't', '0') ///< no interleaving needed
39 #define DEINT_ID_INT4 MKTAG('I', 'n', 't', '4') ///< interleaving for 28.8
40 #define DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r') ///< interleaving for Sipro
41 #define DEINT_ID_VBRF MKTAG('v', 'b', 'r', 'f') ///< VBR case for AAC
42 #define DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's') ///< VBR case for AAC
43
44 struct RMStream {
45 AVPacket pkt; ///< place to store merged video frame / reordered audio data
46 int videobufsize; ///< current assembled frame size
47 int videobufpos; ///< position for the next slice in the video buffer
48 int curpic_num; ///< picture number of current frame
49 int cur_slice, slices;
50 int64_t pktpos; ///< first slice position in file
51 /// Audio descrambling matrix parameters
52 int64_t audiotimestamp; ///< Audio packet timestamp
53 int sub_packet_cnt; // Subpacket counter, used while reading
54 int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container
55 int audio_framesize; ///< Audio frame size from container
56 int sub_packet_lengths[16]; ///< Length of each subpacket
57 int32_t deint_id; ///< deinterleaver used in audio stream
58 };
59
60 typedef struct RMDemuxContext {
61 int nb_packets;
62 int old_format;
63 int current_stream;
64 int remaining_len;
65 int audio_stream_num; ///< Stream number for audio packets
66 int audio_pkt_cnt; ///< Output packet counter
67 int data_end;
68 } RMDemuxContext;
69
70 303 static inline void get_strl(AVIOContext *pb, char *buf, int buf_size, int len)
71 {
72 303 int read = avio_get_str(pb, len, buf, buf_size);
73
74
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 303 if (read > 0)
75 293 avio_skip(pb, len - read);
76 303 }
77
78 193 static void get_str8(AVIOContext *pb, char *buf, int buf_size)
79 {
80 193 get_strl(pb, buf, buf_size, avio_r8(pb));
81 193 }
82
83 30 static int rm_read_extradata(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, unsigned size)
84 {
85
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 30 if (size >= 1<<24) {
86 ✗ av_log(s, AV_LOG_ERROR, "extradata size %u too large\n", size);
87 ✗ return -1;
88 }
89 30 return ff_get_extradata(s, par, pb, size);
90 }
91
92 27 static void rm_read_metadata(AVFormatContext *s, AVIOContext *pb, int wide)
93 {
94 char buf[1024];
95 int i;
96
97
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 135 for (i=0; i<FF_ARRAY_ELEMS(ff_rm_metadata); i++) {
98
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 108 int len = wide ? avio_rb16(pb) : avio_r8(pb);
99
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 108 if (len > 0) {
100 33 get_strl(pb, buf, sizeof(buf), len);
101 33 av_dict_set(&s->metadata, ff_rm_metadata[i], buf, 0);
102 }
103 }
104 27 }
105
106 45 RMStream *ff_rm_alloc_rmstream (void)
107 {
108 45 RMStream *rms = av_mallocz(sizeof(RMStream));
109
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 45 if (!rms)
110 ✗ return NULL;
111 45 rms->curpic_num = -1;
112 45 return rms;
113 }
114
115 35 void ff_rm_free_rmstream (RMStream *rms)
116 {
117
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 35 if (!rms)
118 ✗ return;
119
120 35 av_packet_unref(&rms->pkt);
121 }
122
123 14 static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
124 AVStream *st, RMStream *ast, int read_all)
125 {
126 14 FFStream *const sti = ffstream(st);
127 char buf[256];
128 uint32_t version;
129 int ret;
130
131 /* ra type header */
132 14 version = avio_rb16(pb); /* version */
133
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 14 if (version == 3) {
134 unsigned bytes_per_minute;
135 2 int header_size = avio_rb16(pb);
136 2 int64_t startpos = avio_tell(pb);
137 2 avio_skip(pb, 8);
138 2 bytes_per_minute = avio_rb16(pb);
139 2 avio_skip(pb, 4);
140 2 rm_read_metadata(s, pb, 0);
141
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 2 if ((startpos + header_size) >= avio_tell(pb) + 2) {
142 // fourcc (should always be "lpcJ")
143 2 avio_r8(pb);
144 2 get_str8(pb, buf, sizeof(buf));
145 }
146 // Skip extra header crap (this should never happen)
147
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 2 if ((startpos + header_size) > avio_tell(pb))
148 ✗ avio_skip(pb, header_size + startpos - avio_tell(pb));
149
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 2 if (bytes_per_minute)
150 2 st->codecpar->bit_rate = 8LL * bytes_per_minute / 60;
151 2 st->codecpar->sample_rate = 8000;
152 2 st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO;
153 2 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
154 2 st->codecpar->codec_id = AV_CODEC_ID_RA_144;
155 2 ast->deint_id = DEINT_ID_INT0;
156 } else {
157 int flavor, sub_packet_h, coded_framesize, sub_packet_size;
158 int codecdata_length;
159 unsigned bytes_per_minute;
160 /* old version (4) */
161 12 avio_skip(pb, 2); /* unused */
162 12 avio_rb32(pb); /* .ra4 */
163 12 avio_rb32(pb); /* data size */
164 12 avio_rb16(pb); /* version2 */
165 12 avio_rb32(pb); /* header size */
166 12 flavor= avio_rb16(pb); /* add codec info / flavor */
167 12 coded_framesize = avio_rb32(pb); /* coded frame size */
168
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 12 if (coded_framesize < 0)
169 ✗ return AVERROR_INVALIDDATA;
170 12 ast->coded_framesize = coded_framesize;
171
172 12 avio_rb32(pb); /* ??? */
173 12 bytes_per_minute = avio_rb32(pb);
174
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 12 if (version == 4) {
175
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 7 if (bytes_per_minute)
176 7 st->codecpar->bit_rate = 8LL * bytes_per_minute / 60;
177 }
178 12 avio_rb32(pb); /* ??? */
179 12 ast->sub_packet_h = sub_packet_h = avio_rb16(pb); /* 1 */
180 12 st->codecpar->block_align= avio_rb16(pb); /* frame size */
181 12 ast->sub_packet_size = sub_packet_size = avio_rb16(pb); /* sub packet size */
182 12 avio_rb16(pb); /* ??? */
183
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 12 if (version == 5) {
184 5 avio_rb16(pb); avio_rb16(pb); avio_rb16(pb);
185 }
186 12 st->codecpar->sample_rate = avio_rb16(pb);
187 12 avio_rb32(pb);
188 12 st->codecpar->ch_layout.nb_channels = avio_rb16(pb);
189
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 12 if (version == 5) {
190 5 ast->deint_id = avio_rl32(pb);
191 5 ret = ffio_read_size(pb, buf, 4);
192
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 5 if (ret < 0)
193 ✗ return ret;
194 5 buf[4] = 0;
195 } else {
196 7 AV_WL32(buf, 0);
197 7 get_str8(pb, buf, sizeof(buf)); /* desc */
198 7 ast->deint_id = AV_RL32(buf);
199 7 get_str8(pb, buf, sizeof(buf)); /* desc */
200 }
201 12 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
202 12 st->codecpar->codec_tag = AV_RL32(buf);
203 24 st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags,
204 12 st->codecpar->codec_tag);
205
206
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 12 switch (st->codecpar->codec_id) {
207 1 case AV_CODEC_ID_AC3:
208 1 sti->need_parsing = AVSTREAM_PARSE_FULL;
209 1 break;
210 1 case AV_CODEC_ID_RA_288:
211 1 st->codecpar->extradata_size= 0;
212 1 av_freep(&st->codecpar->extradata);
213 1 ast->audio_framesize = st->codecpar->block_align;
214 1 st->codecpar->block_align = coded_framesize;
215 1 break;
216 5 case AV_CODEC_ID_COOK:
217 5 sti->need_parsing = AVSTREAM_PARSE_HEADERS;
218 9 case AV_CODEC_ID_ATRAC3:
219 case AV_CODEC_ID_SIPR:
220
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 9 if (read_all) {
221 ✗ codecdata_length = 0;
222 } else {
223 9 avio_rb16(pb); avio_r8(pb);
224
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 9 if (version == 5)
225 5 avio_r8(pb);
226 9 codecdata_length = avio_rb32(pb);
227
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 9 if((unsigned)codecdata_length > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE){
228 ✗ av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
229 ✗ return -1;
230 }
231 }
232
233 9 ast->audio_framesize = st->codecpar->block_align;
234
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 9 if (st->codecpar->codec_id == AV_CODEC_ID_SIPR) {
235
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 4 if (flavor > 3) {
236 ✗ av_log(s, AV_LOG_ERROR, "bad SIPR file flavor %d\n",
237 flavor);
238 ✗ return -1;
239 }
240 4 st->codecpar->block_align = ff_sipr_subpk_size[flavor];
241 4 sti->need_parsing = AVSTREAM_PARSE_FULL_RAW;
242 } else {
243
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 5 if(sub_packet_size <= 0){
244 ✗ av_log(s, AV_LOG_ERROR, "sub_packet_size is invalid\n");
245 ✗ return -1;
246 }
247 5 st->codecpar->block_align = ast->sub_packet_size;
248 }
249
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 9 if ((ret = rm_read_extradata(s, pb, st->codecpar, codecdata_length)) < 0)
250 ✗ return ret;
251
252 9 break;
253 ✗ case AV_CODEC_ID_AAC:
254 ✗ avio_rb16(pb); avio_r8(pb);
255 ✗ if (version == 5)
256 ✗ avio_r8(pb);
257 ✗ codecdata_length = avio_rb32(pb);
258 ✗ if((unsigned)codecdata_length > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE){
259 ✗ av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
260 ✗ return -1;
261 }
262 ✗ if (codecdata_length >= 1) {
263 ✗ avio_r8(pb);
264 ✗ if ((ret = rm_read_extradata(s, pb, st->codecpar, codecdata_length - 1)) < 0)
265 ✗ return ret;
266 }
267 ✗ break;
268 }
269
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 12 switch (ast->deint_id) {
270 1 case DEINT_ID_INT4:
271
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 1 if (ast->coded_framesize > ast->audio_framesize ||
272 1 sub_packet_h <= 1 ||
273
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 1 ast->coded_framesize * (uint64_t)sub_packet_h > (2LL + (sub_packet_h & 1)) * ast->audio_framesize)
274 ✗ return AVERROR_INVALIDDATA;
275
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 1 if (ast->coded_framesize * (uint64_t)sub_packet_h != 2LL*ast->audio_framesize) {
276 ✗ avpriv_request_sample(s, "mismatching interleaver parameters");
277 ✗ return AVERROR_INVALIDDATA;
278 }
279 1 break;
280 5 case DEINT_ID_GENR:
281
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 5 if (ast->sub_packet_size <= 0 ||
282
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 5 ast->sub_packet_size > ast->audio_framesize)
283 ✗ return AVERROR_INVALIDDATA;
284
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 5 if (ast->audio_framesize % ast->sub_packet_size)
285 ✗ return AVERROR_INVALIDDATA;
286 5 break;
287 6 case DEINT_ID_SIPR:
288 case DEINT_ID_INT0:
289 case DEINT_ID_VBRS:
290 case DEINT_ID_VBRF:
291 6 break;
292 ✗ default:
293 ✗ av_log(s, AV_LOG_ERROR ,"Unknown interleaver %"PRIX32"\n", ast->deint_id);
294 ✗ return AVERROR_INVALIDDATA;
295 }
296
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 12 if (ast->deint_id == DEINT_ID_INT4 ||
297
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 11 ast->deint_id == DEINT_ID_GENR ||
298
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 6 ast->deint_id == DEINT_ID_SIPR) {
299
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 10 if (st->codecpar->block_align <= 0 ||
300
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 10 ast->audio_framesize * (uint64_t)sub_packet_h > (unsigned)INT_MAX ||
301
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 10 ast->audio_framesize * sub_packet_h < st->codecpar->block_align)
302 ✗ return AVERROR_INVALIDDATA;
303
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 10 if (av_new_packet(&ast->pkt, ast->audio_framesize * sub_packet_h) < 0)
304 ✗ return AVERROR(ENOMEM);
305 }
306
307
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 12 if (read_all) {
308 ✗ avio_r8(pb);
309 ✗ avio_r8(pb);
310 ✗ avio_r8(pb);
311 ✗ rm_read_metadata(s, pb, 0);
312 }
313 }
314 14 return 0;
315 }
316
317 44 int ff_rm_read_mdpr_codecdata(AVFormatContext *s, AVIOContext *pb,
318 AVStream *st, RMStream *rst,
319 unsigned int codec_data_size, const uint8_t *mime)
320 {
321 unsigned int v;
322 int size;
323 int64_t codec_pos;
324 int ret;
325
326
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 44 if (codec_data_size > INT_MAX)
327 ✗ return AVERROR_INVALIDDATA;
328
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 44 if (codec_data_size == 0)
329 ✗ return 0;
330
331 // Duplicate tags
332
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 44 if ( st->codecpar->codec_type != AVMEDIA_TYPE_UNKNOWN
333
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 44 && st->codecpar->codec_type != AVMEDIA_TYPE_DATA)
334 ✗ return AVERROR_INVALIDDATA;
335
336 44 avpriv_set_pts_info(st, 64, 1, 1000);
337 44 codec_pos = avio_tell(pb);
338 44 v = avio_rb32(pb);
339
340
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 44 if (v == MKTAG(0xfd, 'a', 'r', '.')) {
341 /* ra type header */
342
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 13 if (rm_read_audio_stream_info(s, pb, st, rst, 0))
343 ✗ return -1;
344
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 31 } else if (v == MKBETAG('L', 'S', 'D', ':')) {
345 1 avio_seek(pb, -4, SEEK_CUR);
346
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 1 if ((ret = rm_read_extradata(s, pb, st->codecpar, codec_data_size)) < 0)
347 ✗ return ret;
348
349 1 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
350 1 st->codecpar->codec_tag = AV_RL32(st->codecpar->extradata);
351 1 st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags,
352 1 st->codecpar->codec_tag);
353
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 40 } else if(mime && !strcmp(mime, "logical-fileinfo")){
354 int stream_count, rule_count, property_count, i;
355 10 ff_remove_stream(s, st);
356
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 10 if (avio_rb16(pb) != 0) {
357 ✗ av_log(s, AV_LOG_WARNING, "Unsupported version\n");
358 ✗ goto skip;
359 }
360 10 stream_count = avio_rb16(pb);
361 10 avio_skip(pb, 6*stream_count);
362 10 rule_count = avio_rb16(pb);
363 10 avio_skip(pb, 2*rule_count);
364 10 property_count = avio_rb16(pb);
365
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 99 for(i=0; i<property_count; i++){
366 uint8_t name[128], val[128];
367 89 avio_rb32(pb);
368
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 89 if (avio_rb16(pb) != 0) {
369 ✗ av_log(s, AV_LOG_WARNING, "Unsupported Name value property version\n");
370 ✗ goto skip; //FIXME skip just this one
371 }
372 89 get_str8(pb, name, sizeof(name));
373
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 89 switch(avio_rb32(pb)) {
374 77 case 2: get_strl(pb, val, sizeof(val), avio_rb16(pb));
375 77 av_dict_set(&s->metadata, name, val, 0);
376 77 break;
377 12 default: avio_skip(pb, avio_rb16(pb));
378 }
379 }
380 } else {
381 int fps;
382
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 20 if (avio_rl32(pb) != MKTAG('V', 'I', 'D', 'O')) {
383 ✗ fail1:
384 ✗ av_log(s, AV_LOG_WARNING, "Unsupported stream type %08x\n", v);
385 ✗ goto skip;
386 }
387 20 st->codecpar->codec_tag = avio_rl32(pb);
388 40 st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags,
389 20 st->codecpar->codec_tag);
390 20 av_log(s, AV_LOG_TRACE, "%"PRIX32" %X\n",
391 20 st->codecpar->codec_tag, MKTAG('R', 'V', '2', '0'));
392
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 20 if (st->codecpar->codec_id == AV_CODEC_ID_NONE)
393 ✗ goto fail1;
394 20 st->codecpar->width = avio_rb16(pb);
395 20 st->codecpar->height = avio_rb16(pb);
396 20 avio_skip(pb, 2); // looks like bits per sample
397 20 avio_skip(pb, 4); // always zero?
398 20 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
399 20 ffstream(st)->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
400 20 fps = avio_rb32(pb);
401
402
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 20 if ((ret = rm_read_extradata(s, pb, st->codecpar, codec_data_size - (avio_tell(pb) - codec_pos))) < 0)
403 ✗ return ret;
404
405
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 20 if (fps > 0) {
406 19 av_reduce(&st->avg_frame_rate.den, &st->avg_frame_rate.num,
407 0x10000, fps, (1 << 30) - 1);
408 #if FF_API_R_FRAME_RATE
409 19 st->r_frame_rate = st->avg_frame_rate;
410 #endif
411
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 1 } else if (s->error_recognition & AV_EF_EXPLODE) {
412 ✗ av_log(s, AV_LOG_ERROR, "Invalid framerate\n");
413 ✗ return AVERROR_INVALIDDATA;
414 }
415 }
416
417 1 skip:
418 /* skip codec info */
419 44 size = avio_tell(pb) - codec_pos;
420
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 44 if (codec_data_size >= size) {
421 44 avio_skip(pb, codec_data_size - size);
422 } else {
423 ✗ av_log(s, AV_LOG_WARNING, "codec_data_size %u < size %d\n", codec_data_size, size);
424 }
425
426 44 return 0;
427 }
428
429 /** this function assumes that the demuxer has already seeked to the start
430 * of the INDX chunk, and will bail out if not. */
431 12 static int rm_read_index(AVFormatContext *s)
432 {
433 12 AVIOContext *pb = s->pb;
434 unsigned int size, ver, n_pkts, str_id, next_off, n, pts;
435 uint64_t pos;
436 AVStream *st;
437
438 do {
439
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 14 if (avio_rl32(pb) != MKTAG('I','N','D','X'))
440 10 return -1;
441 4 size = avio_rb32(pb);
442
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 4 if (size < 20)
443 ✗ return -1;
444 4 ver = avio_rb16(pb);
445
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 4 if (ver != 0 && ver != 2)
446 ✗ return AVERROR_INVALIDDATA;
447 4 n_pkts = avio_rb32(pb);
448 4 str_id = avio_rb16(pb);
449 4 next_off = avio_rb32(pb);
450
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 4 if (ver == 2)
451 ✗ avio_skip(pb, 4);
452
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 6 for (n = 0; n < s->nb_streams; n++)
453
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 5 if (s->streams[n]->id == str_id) {
454 3 st = s->streams[n];
455 3 break;
456 }
457
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 4 if (n == s->nb_streams) {
458 1 av_log(s, AV_LOG_ERROR,
459 "Invalid stream index %d for index at pos %"PRId64"\n",
460 str_id, avio_tell(pb));
461 1 goto skip;
462
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✓ Branch 3 taken 3 times.
 3 } else if ((avio_size(pb) - avio_tell(pb)) / 14 < n_pkts) {
463 ✗ av_log(s, AV_LOG_ERROR,
464 "Nr. of packets in packet index for stream index %d "
465 "exceeds filesize (%"PRId64" at %"PRId64" = %"PRId64")\n",
466 str_id, avio_size(pb), avio_tell(pb),
467 ✗ (avio_size(pb) - avio_tell(pb)) / 14);
468 ✗ goto skip;
469 }
470
471
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 21 for (n = 0; n < n_pkts; n++) {
472
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 18 if (avio_feof(pb))
473 ✗ return AVERROR_INVALIDDATA;
474 18 avio_skip(pb, 2);
475 18 pts = avio_rb32(pb);
476
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 18 pos = (ver == 0) ? avio_rb32(pb) : avio_rb64(pb);
477 18 avio_skip(pb, 4); /* packet no. */
478
479 18 av_add_index_entry(st, pos, pts, 0, 0, AVINDEX_KEYFRAME);
480 }
481
482 3 skip:
483
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 4 if (next_off && avio_tell(pb) < next_off &&
484 ✗ avio_seek(pb, next_off, SEEK_SET) < 0) {
485 ✗ av_log(s, AV_LOG_ERROR,
486 "Non-linear index detected, not supported\n");
487 ✗ return -1;
488 }
489
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 4 } while (next_off);
490
491 2 return 0;
492 }
493
494 1 static int rm_read_header_old(AVFormatContext *s)
495 {
496 1 RMDemuxContext *rm = s->priv_data;
497 AVStream *st;
498
499 1 rm->old_format = 1;
500 1 st = avformat_new_stream(s, NULL);
501
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 1 if (!st)
502 ✗ return -1;
503 1 st->priv_data = ff_rm_alloc_rmstream();
504
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 1 if (!st->priv_data)
505 ✗ return AVERROR(ENOMEM);
506 1 return rm_read_audio_stream_info(s, s->pb, st, st->priv_data, 1);
507 }
508
509 ✗ static int rm_read_multi(AVFormatContext *s, AVIOContext *pb,
510 AVStream *st, char *mime)
511 {
512 ✗ int number_of_streams = avio_rb16(pb);
513 int number_of_mdpr;
514 int i, ret;
515 unsigned size2;
516 ✗ for (i = 0; i<number_of_streams; i++)
517 ✗ avio_rb16(pb);
518 ✗ number_of_mdpr = avio_rb16(pb);
519 ✗ if (number_of_mdpr != 1) {
520 ✗ avpriv_request_sample(s, "MLTI with multiple (%d) MDPR", number_of_mdpr);
521 }
522 ✗ for (i = 0; i < number_of_mdpr; i++) {
523 AVStream *st2;
524 ✗ if (i > 0) {
525 ✗ st2 = avformat_new_stream(s, NULL);
526 ✗ if (!st2) {
527 ✗ ret = AVERROR(ENOMEM);
528 ✗ return ret;
529 }
530 ✗ st2->id = st->id + (i<<16);
531 ✗ st2->codecpar->bit_rate = st->codecpar->bit_rate;
532 ✗ st2->start_time = st->start_time;
533 ✗ st2->duration = st->duration;
534 ✗ st2->codecpar->codec_type = AVMEDIA_TYPE_DATA;
535 ✗ st2->priv_data = ff_rm_alloc_rmstream();
536 ✗ if (!st2->priv_data)
537 ✗ return AVERROR(ENOMEM);
538 } else
539 ✗ st2 = st;
540
541 ✗ size2 = avio_rb32(pb);
542 ✗ ret = ff_rm_read_mdpr_codecdata(s, s->pb, st2, st2->priv_data,
543 size2, NULL);
544 ✗ if (ret < 0)
545 ✗ return ret;
546 }
547 ✗ return 0;
548 }
549
550 26 static int rm_read_header(AVFormatContext *s)
551 {
552 26 RMDemuxContext *rm = s->priv_data;
553 AVStream *st;
554 26 AVIOContext *pb = s->pb;
555 unsigned int tag;
556 int tag_size;
557 int ver;
558 unsigned int start_time, duration;
559 26 unsigned int data_off = 0;
560 26 uint64_t indx_off = 0;
561 char buf[128], mime[128];
562 26 int flags = 0;
563 int ret;
564 unsigned size, v;
565 int64_t codec_pos;
566
567 26 tag = avio_rl32(pb);
568
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 26 if (tag == MKTAG('.', 'r', 'a', 0xfd)) {
569 /* very old .ra format */
570 1 return rm_read_header_old(s);
571
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 25 } else if (tag != MKTAG('.', 'R', 'M', 'F') && tag != MKTAG('.', 'R', 'M', 'P')) {
572 ✗ return AVERROR(EIO);
573 }
574
575 25 tag_size = avio_rb32(pb);
576
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 25 if (tag_size < 0)
577 ✗ return AVERROR_INVALIDDATA;
578 25 avio_skip(pb, tag_size - 8);
579
580 94 for(;;) {
581
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✓ Branch 2 taken 119 times.
 119 if (avio_feof(pb))
582 ✗ return AVERROR_INVALIDDATA;
583 119 tag = avio_rl32(pb);
584 119 tag_size = avio_rb32(pb);
585 119 ver = avio_rb16(pb);
586 119 av_log(s, AV_LOG_TRACE, "tag=%s size=%d\n",
587 119 av_fourcc2str(tag), tag_size);
588
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 119 if ((tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A')) ||
589
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 4 (ver != 0 && ver != 2))
590 ✗ return AVERROR_INVALIDDATA;
591
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 119 switch(tag) {
592 25 case MKTAG('P', 'R', 'O', 'P'):
593 /* file header */
594 25 avio_rb32(pb); /* max bit rate */
595 25 avio_rb32(pb); /* avg bit rate */
596 25 avio_rb32(pb); /* max packet size */
597 25 avio_rb32(pb); /* avg packet size */
598 25 avio_rb32(pb); /* nb packets */
599 25 duration = avio_rb32(pb); /* duration */
600 25 s->duration = av_rescale(duration, AV_TIME_BASE, 1000);
601 25 avio_rb32(pb); /* preroll */
602
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 25 indx_off = (ver == 0) ? avio_rb32(pb) : avio_rb64(pb); /* index offset */
603 25 data_off = avio_rb32(pb); /* data offset */
604 25 avio_rb16(pb); /* nb streams */
605 25 flags = avio_rb16(pb); /* flags */
606 25 break;
607 25 case MKTAG('C', 'O', 'N', 'T'):
608 25 rm_read_metadata(s, pb, 1);
609 25 break;
610 44 case MKTAG('M', 'D', 'P', 'R'):
611 44 st = avformat_new_stream(s, NULL);
612
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 44 if (!st)
613 ✗ return AVERROR(ENOMEM);
614 44 st->id = avio_rb16(pb);
615 44 avio_rb32(pb); /* max bit rate */
616 44 st->codecpar->bit_rate = avio_rb32(pb); /* bit rate */
617 44 avio_rb32(pb); /* max packet size */
618 44 avio_rb32(pb); /* avg packet size */
619 44 start_time = avio_rb32(pb); /* start time */
620 44 avio_rb32(pb); /* preroll */
621 44 duration = avio_rb32(pb); /* duration */
622 44 st->start_time = start_time;
623 44 st->duration = duration;
624
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 44 if(duration>0)
625 33 s->duration = AV_NOPTS_VALUE;
626 44 get_str8(pb, buf, sizeof(buf)); /* desc */
627 44 get_str8(pb, mime, sizeof(mime)); /* mimetype */
628 44 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
629 44 st->priv_data = ff_rm_alloc_rmstream();
630
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 44 if (!st->priv_data)
631 ✗ return AVERROR(ENOMEM);
632
633 44 size = avio_rb32(pb);
634 44 codec_pos = avio_tell(pb);
635
636 44 ffio_ensure_seekback(pb, 4);
637 44 v = avio_rb32(pb);
638
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 44 if (v == MKBETAG('M', 'L', 'T', 'I')) {
639 ✗ ret = rm_read_multi(s, s->pb, st, mime);
640 ✗ if (ret < 0)
641 ✗ return ret;
642 ✗ avio_seek(pb, codec_pos + size, SEEK_SET);
643 } else {
644 44 avio_skip(pb, -4);
645 44 ret = ff_rm_read_mdpr_codecdata(s, s->pb, st, st->priv_data,
646 size, mime);
647
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 44 if (ret < 0)
648 ✗ return ret;
649 }
650
651 44 break;
652 25 case MKTAG('D', 'A', 'T', 'A'):
653 25 goto header_end;
654 ✗ default:
655 /* unknown tag: skip it */
656 ✗ avio_skip(pb, tag_size - 10);
657 ✗ break;
658 }
659 }
660 25 header_end:
661 25 rm->nb_packets = avio_rb32(pb); /* number of packets */
662
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 25 if (!rm->nb_packets && (flags & 4))
663 ✗ rm->nb_packets = 3600 * 25;
664
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 25 if (ver == 2)
665 2 avio_skip(pb, 12);
666 25 avio_rb32(pb); /* next data header */
667
668
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 25 if (!data_off)
669 ✗ data_off = avio_tell(pb) - (ver == 0 ? 18 : 30);
670
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 25 if (indx_off && (pb->seekable & AVIO_SEEKABLE_NORMAL) &&
671
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 24 !(s->flags & AVFMT_FLAG_IGNIDX) &&
672 12 avio_seek(pb, indx_off, SEEK_SET) >= 0) {
673 12 rm_read_index(s);
674
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 12 avio_seek(pb, data_off + (ver == 0 ? 18 : 30), SEEK_SET);
675 }
676
677 25 return 0;
678 }
679
680 7544 static int get_num(AVIOContext *pb, int *len)
681 {
682 int n, n1;
683
684 7544 n = avio_rb16(pb);
685 7544 (*len)-=2;
686 7544 n &= 0x7FFF;
687
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 7544 if (n >= 0x4000) {
688 6786 return n - 0x4000;
689 } else {
690 758 n1 = avio_rb16(pb);
691 758 (*len)-=2;
692 758 return (n << 16) | n1;
693 }
694 }
695
696 /* multiple of 20 bytes for ra144 (ugly) */
697 #define RAW_PACKET_SIZE 1000
698
699 7301 static int rm_sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){
700 7301 RMDemuxContext *rm = s->priv_data;
701 7301 AVIOContext *pb = s->pb;
702 AVStream *st;
703 7301 uint32_t state=0xFFFFFFFF;
704
705
2/2
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✓ Branch 2 taken 120 times.
 1356688 while(!avio_feof(pb)){
706 int len, num, i;
707 int mlti_id;
708 1356568 *pos= avio_tell(pb) - 3;
709
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 1356568 if(rm->remaining_len > 0){
710 559 num= rm->current_stream;
711 559 mlti_id = 0;
712 559 len= rm->remaining_len;
713 559 *timestamp = AV_NOPTS_VALUE;
714 559 *flags= 0;
715 }else{
716 1356009 state= (state<<8) + avio_r8(pb);
717
718
2/2
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 1356009 if(state == MKBETAG('I', 'N', 'D', 'X')){
719 int ver;
720 int n_pkts;
721 int64_t expected_len;
722 4 len = avio_rb32(pb);
723 4 ver = avio_rb16(pb);
724
1/4
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✗ Branch 2 not taken.
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 4 if (ver != 0 && ver != 2)
725 ✗ return AVERROR_INVALIDDATA;
726 4 n_pkts = avio_rb32(pb);
727
728
1/2
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✗ Branch 1 not taken.
 4 if (ver == 0)
729 4 expected_len = 20 + n_pkts * 14LL;
730 ✗ else if (ver == 2)
731 ✗ expected_len = 24 + n_pkts * 18LL;
732
733
3/4
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 4 if (len == 20 && expected_len <= INT_MAX)
734 /* some files don't add index entries to chunk size... */
735 2 len = expected_len;
736
1/2
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✓ Branch 1 taken 2 times.
 2 else if (len != expected_len)
737 ✗ av_log(s, AV_LOG_WARNING,
738 "Index size %d (%d pkts) is wrong, should be %"PRId64".\n",
739 len, n_pkts, expected_len);
740
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 4 if(len < 14)
741 ✗ continue;
742 4 len -= 14; // we already read part of the index header
743 4 goto skip;
744
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✓ Branch 1 taken 1356005 times.
 1356005 } else if (state == MKBETAG('D','A','T','A')) {
745 ✗ av_log(s, AV_LOG_WARNING,
746 "DATA tag in middle of chunk, file may be broken.\n");
747 }
748
749
4/4
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 1356005 if(state > (unsigned)0xFFFF || state <= 12)
750 1349318 continue;
751 6687 len=state - 12;
752 6687 state= 0xFFFFFFFF;
753
754 6687 num = avio_rb16(pb);
755 6687 *timestamp = avio_rb32(pb);
756 6687 mlti_id = (avio_r8(pb) >> 1) - 1;
757 6687 mlti_id = FFMAX(mlti_id, 0) << 16;
758 6687 *flags = avio_r8(pb); /* flags */
759 }
760
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 10322 for(i=0;i<s->nb_streams;i++) {
761 10257 st = s->streams[i];
762
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 10257 if (mlti_id + num == st->id)
763 7181 break;
764 }
765
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 7246 if (i == s->nb_streams) {
766 65 skip:
767 /* skip packet if unknown number */
768 69 avio_skip(pb, len);
769 69 rm->remaining_len = 0;
770 69 continue;
771 }
772 7181 *stream_index= i;
773
774 7181 return len;
775 }
776 120 return -1;
777 }
778
779 3776 static int rm_assemble_video_frame(AVFormatContext *s, AVIOContext *pb,
780 RMDemuxContext *rm, RMStream *vst,
781 AVPacket *pkt, int len, int *pseq,
782 int64_t *timestamp)
783 {
784 int hdr;
785 3776 int seq = 0, pic_num = 0, len2 = 0, pos = 0; //init to silence compiler warning
786 int type;
787 int ret;
788
789 3776 hdr = avio_r8(pb); len--;
790 3776 type = hdr >> 6;
791
792
2/2
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 3776 if(type != 3){ // not frame as a part of packet
793 2536 seq = avio_r8(pb); len--;
794 }
795
2/2
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✓ Branch 1 taken 4 times.
 3776 if(type != 1){ // not whole frame
796 3772 len2 = get_num(pb, &len);
797 3772 pos = get_num(pb, &len);
798 3772 pic_num = avio_r8(pb); len--;
799 }
800
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 3776 if(len<0) {
801 ✗ av_log(s, AV_LOG_ERROR, "Insufficient data\n");
802 ✗ return -1;
803 }
804 3776 rm->remaining_len = len;
805
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 3776 if(type&1){ // frame, not slice
806
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 1244 if(type == 3){ // frame as a part of packet
807 1240 len= len2;
808 1240 *timestamp = pos;
809 }
810
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 1244 if(rm->remaining_len < len) {
811 1 av_log(s, AV_LOG_ERROR, "Insufficient remaining len\n");
812 1 return -1;
813 }
814 1243 rm->remaining_len -= len;
815
1/2
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✓ Branch 2 taken 1243 times.
 1243 if ((ret = av_new_packet(pkt, len + 9)) < 0)
816 ✗ return ret;
817 1243 pkt->data[0] = 0;
818 1243 AV_WL32(pkt->data + 1, 1);
819 1243 AV_WL32(pkt->data + 5, 0);
820 1243 ret = ffio_read_size(pb, pkt->data + 9, len);
821
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✓ Branch 1 taken 1241 times.
 1243 if (ret < 0) {
822 2 av_packet_unref(pkt);
823 2 av_log(s, AV_LOG_ERROR, "Failed to read %d bytes\n", len);
824 2 return ret;
825 }
826 1241 return 0;
827 }
828 //now we have to deal with single slice
829
830 2532 *pseq = seq;
831
4/4
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 2532 if((seq & 0x7F) == 1 || vst->curpic_num != pic_num){
832
2/2
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✓ Branch 2 taken 1028 times.
 1031 if (len2 > ffio_limit(pb, len2)) {
833 3 av_log(s, AV_LOG_ERROR, "Impossibly sized packet\n");
834 3 return AVERROR_INVALIDDATA;
835 }
836 1028 vst->slices = ((hdr & 0x3F) << 1) + 1;
837 1028 vst->videobufsize = len2 + 8*vst->slices + 1;
838 1028 av_packet_unref(&vst->pkt); //FIXME this should be output.
839
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✓ Branch 2 taken 1028 times.
 1028 if ((ret = av_new_packet(&vst->pkt, vst->videobufsize)) < 0)
840 ✗ return ret;
841 1028 vst->videobufpos = 8*vst->slices + 1;
842 1028 vst->cur_slice = 0;
843 1028 vst->curpic_num = pic_num;
844 1028 vst->pktpos = avio_tell(pb);
845 }
846
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 2529 if(type == 2)
847 1017 len = FFMIN(len, pos);
848
849
1/2
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 2529 if(++vst->cur_slice > vst->slices) {
850 ✗ av_log(s, AV_LOG_ERROR, "cur slice %d, too large\n", vst->cur_slice);
851 ✗ return 1;
852 }
853
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 2529 if(!vst->pkt.data)
854 ✗ return AVERROR(ENOMEM);
855 2529 AV_WL32(vst->pkt.data - 7 + 8*vst->cur_slice, 1);
856 2529 AV_WL32(vst->pkt.data - 3 + 8*vst->cur_slice, vst->videobufpos - 8*vst->slices - 1);
857
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 2529 if(vst->videobufpos + len > vst->videobufsize) {
858 ✗ av_log(s, AV_LOG_ERROR, "outside videobufsize\n");
859 ✗ return 1;
860 }
861 2529 ret = ffio_read_size(pb, vst->pkt.data + vst->videobufpos, len);
862
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 2529 if (ret < 0)
863 ✗ return ret;
864 2529 vst->videobufpos += len;
865 2529 rm->remaining_len-= len;
866
867
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 2529 if (type == 2 || vst->videobufpos == vst->videobufsize) {
868 1028 vst->pkt.data[0] = vst->cur_slice-1;
869 1028 av_packet_move_ref(pkt, &vst->pkt);
870
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 1028 if(vst->slices != vst->cur_slice) //FIXME find out how to set slices correct from the begin
871 785 memmove(pkt->data + 1 + 8*vst->cur_slice, pkt->data + 1 + 8*vst->slices,
872 785 vst->videobufpos - 1 - 8*vst->slices);
873 1028 av_shrink_packet(pkt, vst->videobufpos + 8*(vst->cur_slice - vst->slices));
874 1028 pkt->pts = AV_NOPTS_VALUE;
875 1028 pkt->pos = vst->pktpos;
876 1028 vst->slices = 0;
877 1028 return 0;
878 }
879
880 1501 return 1;
881 }
882
883 static inline void
884 956 rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt)
885 {
886 uint8_t *ptr;
887 int j;
888
889
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 956 if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
890 10 ptr = pkt->data;
891
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 1401 for (j=0;j<pkt->size;j+=2) {
892 1391 FFSWAP(int, ptr[0], ptr[1]);
893 1391 ptr += 2;
894 }
895 }
896 956 }
897
898 4196 static int readfull(AVFormatContext *s, AVIOContext *pb, uint8_t *dst, int n) {
899 4196 int ret = avio_read(pb, dst, n);
900
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 4196 if (ret != n) {
901
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 7 if (ret >= 0) memset(dst + ret, 0, n - ret);
902 5 else memset(dst , 0, n);
903 7 av_log(s, AV_LOG_ERROR, "Failed to fully read block\n");
904 }
905 4196 return ret;
906 }
907
908 int
909 5928 ff_rm_parse_packet (AVFormatContext *s, AVIOContext *pb,
910 AVStream *st, RMStream *ast, int len, AVPacket *pkt,
911 int *seq, int flags, int64_t timestamp)
912 {
913 5928 RMDemuxContext *rm = s->priv_data;
914 int ret;
915
916
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 5928 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
917 3776 rm->current_stream= st->id;
918 3776 ret = rm_assemble_video_frame(s, pb, rm, ast, pkt, len, seq, &timestamp);
919
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 3776 if(ret)
920 1507 return ret < 0 ? ret : -1; //got partial frame or error
921
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 2152 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
922
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 2152 if ((ast->deint_id == DEINT_ID_GENR) ||
923
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 1900 (ast->deint_id == DEINT_ID_INT4) ||
924
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 1485 (ast->deint_id == DEINT_ID_SIPR)) {
925 int x;
926 1195 int sps = ast->sub_packet_size;
927 1195 int cfs = ast->coded_framesize;
928 1195 int h = ast->sub_packet_h;
929 1195 int y = ast->sub_packet_cnt;
930 1195 int w = ast->audio_framesize;
931
932
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 1195 if (flags & 2)
933 141 y = ast->sub_packet_cnt = 0;
934
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 1195 if (!y)
935 141 ast->audiotimestamp = timestamp;
936
937
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✗ Branch 3 not taken.
 1195 switch (ast->deint_id) {
938 415 case DEINT_ID_INT4:
939
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 2905 for (x = 0; x < h/2; x++)
940 2490 readfull(s, pb, ast->pkt.data+x*2*w+y*cfs, cfs);
941 415 break;
942 252 case DEINT_ID_GENR:
943
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 1430 for (x = 0; x < w/sps; x++)
944 1178 readfull(s, pb, ast->pkt.data+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps);
945 252 break;
946 528 case DEINT_ID_SIPR:
947 528 readfull(s, pb, ast->pkt.data + y * w, w);
948 528 break;
949 }
950
951
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 1195 if (++(ast->sub_packet_cnt) < h)
952 1060 return -1;
953
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 135 if (ast->deint_id == DEINT_ID_SIPR)
954 88 ff_rm_reorder_sipr_data(ast->pkt.data, h, w);
955
956 135 ast->sub_packet_cnt = 0;
957 135 rm->audio_stream_num = st->index;
958
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 135 if (st->codecpar->block_align <= 0) {
959 ✗ av_log(s, AV_LOG_ERROR, "Invalid block alignment %d\n", st->codecpar->block_align);
960 ✗ return AVERROR_INVALIDDATA;
961 }
962 135 rm->audio_pkt_cnt = h * w / st->codecpar->block_align;
963
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 957 } else if ((ast->deint_id == DEINT_ID_VBRF) ||
964
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 957 (ast->deint_id == DEINT_ID_VBRS)) {
965 int x;
966 ✗ rm->audio_stream_num = st->index;
967 ✗ ast->sub_packet_cnt = (avio_rb16(pb) & 0xf0) >> 4;
968 ✗ if (ast->sub_packet_cnt) {
969 ✗ for (x = 0; x < ast->sub_packet_cnt; x++)
970 ✗ ast->sub_packet_lengths[x] = avio_rb16(pb);
971 ✗ rm->audio_pkt_cnt = ast->sub_packet_cnt;
972 ✗ ast->audiotimestamp = timestamp;
973 } else
974 ✗ return -1;
975 } else {
976 957 ret = av_get_packet(pb, pkt, len);
977
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 957 if (ret < 0)
978 1 return ret;
979 956 rm_ac3_swap_bytes(st, pkt);
980 }
981 } else {
982 ✗ ret = av_get_packet(pb, pkt, len);
983 ✗ if (ret < 0)
984 ✗ return ret;
985 }
986
987 3360 pkt->stream_index = st->index;
988
989 3360 pkt->pts = timestamp;
990
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 3360 if (flags & 2)
991 689 pkt->flags |= AV_PKT_FLAG_KEY;
992
993
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 3360 return st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ? rm->audio_pkt_cnt : 0;
994 }
995
996 int
997 9917 ff_rm_retrieve_cache (AVFormatContext *s, AVIOContext *pb,
998 AVStream *st, RMStream *ast, AVPacket *pkt)
999 {
1000 9917 RMDemuxContext *rm = s->priv_data;
1001 int ret;
1002
1003
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 9917 av_assert0 (rm->audio_pkt_cnt > 0);
1004
1005
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 9917 if (ast->deint_id == DEINT_ID_VBRF ||
1006
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 9917 ast->deint_id == DEINT_ID_VBRS) {
1007 ✗ ret = av_get_packet(pb, pkt, ast->sub_packet_lengths[ast->sub_packet_cnt - rm->audio_pkt_cnt]);
1008 ✗ if (ret < 0)
1009 ✗ return ret;
1010 } else {
1011 9917 ret = av_new_packet(pkt, st->codecpar->block_align);
1012
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 9917 if (ret < 0)
1013 ✗ return ret;
1014 9917 memcpy(pkt->data, ast->pkt.data + st->codecpar->block_align * //FIXME avoid this
1015 9917 (ast->sub_packet_h * ast->audio_framesize / st->codecpar->block_align - rm->audio_pkt_cnt),
1016 9917 st->codecpar->block_align);
1017 }
1018 9917 rm->audio_pkt_cnt--;
1019
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 9917 if ((pkt->pts = ast->audiotimestamp) != AV_NOPTS_VALUE) {
1020 135 ast->audiotimestamp = AV_NOPTS_VALUE;
1021 135 pkt->flags = AV_PKT_FLAG_KEY;
1022 } else
1023 9782 pkt->flags = 0;
1024 9917 pkt->stream_index = st->index;
1025
1026 9917 return rm->audio_pkt_cnt;
1027 }
1028
1029 11529 static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
1030 {
1031 11529 RMDemuxContext *rm = s->priv_data;
1032 11529 AVStream *st = NULL; // init to silence compiler warning
1033 11529 int i, res, seq = 1;
1034 int64_t timestamp, pos, len;
1035 int flags;
1036
1037 for (;;) {
1038
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 15867 if (rm->audio_pkt_cnt) {
1039 // If there are queued audio packet return them first
1040 9917 st = s->streams[rm->audio_stream_num];
1041 9917 res = ff_rm_retrieve_cache(s, s->pb, st, st->priv_data, pkt);
1042
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 9917 if(res < 0)
1043 ✗ return res;
1044 9917 flags = 0;
1045 } else {
1046
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 5950 if (rm->old_format) {
1047 RMStream *ast;
1048
1049 3 st = s->streams[0];
1050 3 ast = st->priv_data;
1051 3 timestamp = AV_NOPTS_VALUE;
1052
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✓ Branch 1 taken 3 times.
 3 len = !ast->audio_framesize ? RAW_PACKET_SIZE :
1053 ✗ ast->coded_framesize * (int64_t)ast->sub_packet_h / 2;
1054
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 3 if (len > INT_MAX)
1055 ✗ return AVERROR_INVALIDDATA;
1056
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 3 flags = (seq++ == 1) ? 2 : 0;
1057 3 pos = avio_tell(s->pb);
1058 } else {
1059 5947 len = rm_sync(s, &timestamp, &flags, &i, &pos);
1060
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 5947 if (len > 0)
1061 5928 st = s->streams[i];
1062 }
1063
1064
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 5950 if (avio_feof(s->pb))
1065 22 return AVERROR_EOF;
1066
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 5928 if (len <= 0)
1067 ✗ return AVERROR(EIO);
1068
1069 5928 res = ff_rm_parse_packet (s, s->pb, st, st->priv_data, len, pkt,
1070 &seq, flags, timestamp);
1071
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 5928 if (res < -1)
1072 6 return res;
1073
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✓ Branch 3 taken 172 times.
 5922 if((flags&2) && (seq&0x7F) == 1)
1074 794 av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
1075
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 5922 if (res)
1076 2697 continue;
1077 }
1078
1079
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 13142 if( (st->discard >= AVDISCARD_NONKEY && !(flags&2))
1080
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✓ Branch 1 taken 11501 times.
 11523 || st->discard >= AVDISCARD_ALL){
1081 1641 av_packet_unref(pkt);
1082 } else
1083 break;
1084 }
1085
1086 11501 return 0;
1087 }
1088
1089 26 static int rm_read_close(AVFormatContext *s)
1090 {
1091 int i;
1092
1093
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✓ Branch 1 taken 26 times.
 61 for (i=0;i<s->nb_streams;i++)
1094 35 ff_rm_free_rmstream(s->streams[i]->priv_data);
1095
1096 26 return 0;
1097 }
1098
1099 7211 static int rm_probe(const AVProbeData *p)
1100 {
1101 /* check file header */
1102
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✓ Branch 2 taken 25 times.
✓ Branch 3 taken 11 times.
 7211 if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
1103
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 25 p->buf[2] == 'M' && (p->buf[3] == 'F' || p->buf[3] == 'P') &&
1104
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 25 p->buf[4] == 0 && p->buf[5] == 0) ||
1105
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 7186 (p->buf[0] == '.' && p->buf[1] == 'r' &&
1106
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 1 p->buf[2] == 'a' && p->buf[3] == 0xfd))
1107 26 return AVPROBE_SCORE_MAX;
1108 else
1109 7185 return 0;
1110 }
1111
1112 248 static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
1113 int64_t *ppos, int64_t pos_limit)
1114 {
1115 248 RMDemuxContext *rm = s->priv_data;
1116 int64_t pos, dts;
1117 int stream_index2, flags, len, h;
1118
1119 248 pos = *ppos;
1120
1121
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 248 if(rm->old_format)
1122 ✗ return AV_NOPTS_VALUE;
1123
1124
1/2
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✓ Branch 2 taken 248 times.
 248 if (avio_seek(s->pb, pos, SEEK_SET) < 0)
1125 ✗ return AV_NOPTS_VALUE;
1126
1127 248 rm->remaining_len=0;
1128 1106 for(;;){
1129 1354 int seq=1;
1130 AVStream *st;
1131
1132 1354 len = rm_sync(s, &dts, &flags, &stream_index2, &pos);
1133
2/2
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✓ Branch 1 taken 1253 times.
 1354 if(len<0)
1134 101 return AV_NOPTS_VALUE;
1135
1136 1253 st = s->streams[stream_index2];
1137
2/2
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✓ Branch 1 taken 218 times.
 1253 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1138 1035 h= avio_r8(s->pb); len--;
1139
1/2
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✗ Branch 1 not taken.
 1035 if(!(h & 0x40)){
1140 1035 seq = avio_r8(s->pb); len--;
1141 }
1142 }
1143
1144
3/4
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✗ Branch 3 not taken.
 1253 if((flags&2) && (seq&0x7F) == 1){
1145 355 av_log(s, AV_LOG_TRACE, "%d %d-%d %"PRId64" %d\n",
1146 flags, stream_index2, stream_index, dts, seq);
1147 355 av_add_index_entry(st, pos, dts, 0, 0, AVINDEX_KEYFRAME);
1148
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✓ Branch 1 taken 208 times.
 355 if(stream_index2 == stream_index)
1149 147 break;
1150 }
1151
1152 1106 avio_skip(s->pb, len);
1153 }
1154 147 *ppos = pos;
1155 147 return dts;
1156 }
1157
1158 78 static int rm_read_seek(AVFormatContext *s, int stream_index,
1159 int64_t pts, int flags)
1160 {
1161 78 RMDemuxContext *rm = s->priv_data;
1162
1163
2/2
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✓ Branch 2 taken 77 times.
 78 if (ff_seek_frame_binary(s, stream_index, pts, flags) < 0)
1164 1 return -1;
1165 77 rm->audio_pkt_cnt = 0;
1166 77 return 0;
1167 }
1168
1169
1170 const FFInputFormat ff_rm_demuxer = {
1171 .p.name = "rm",
1172 .p.long_name = NULL_IF_CONFIG_SMALL("RealMedia"),
1173 .priv_data_size = sizeof(RMDemuxContext),
1174 .flags_internal = FF_INFMT_FLAG_INIT_CLEANUP,
1175 .read_probe = rm_probe,
1176 .read_header = rm_read_header,
1177 .read_packet = rm_read_packet,
1178 .read_close = rm_read_close,
1179 .read_timestamp = rm_read_dts,
1180 .read_seek = rm_read_seek,
1181 };
1182
1183 const FFInputFormat ff_rdt_demuxer = {
1184 .p.name = "rdt",
1185 .p.long_name = NULL_IF_CONFIG_SMALL("RDT demuxer"),
1186 .p.flags = AVFMT_NOFILE,
1187 .priv_data_size = sizeof(RMDemuxContext),
1188 .read_close = rm_read_close,
1189 };
1190
1191 7211 static int ivr_probe(const AVProbeData *p)
1192 {
1193
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✗ Branch 1 not taken.
 7211 if (memcmp(p->buf, ".R1M\x0\x1\x1", 7) &&
1194
1/2
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✗ Branch 1 not taken.
 7211 memcmp(p->buf, ".REC", 4))
1195 7211 return 0;
1196
1197 ✗ return AVPROBE_SCORE_MAX;
1198 }
1199
1200 ✗ static int ivr_read_header(AVFormatContext *s)
1201 {
1202 unsigned tag, type, len, tlen, value;
1203 ✗ int i, j, n, count, nb_streams = 0, ret;
1204 uint8_t key[256], val[256];
1205 ✗ AVIOContext *pb = s->pb;
1206 AVStream *st;
1207 ✗ int64_t pos, offset=0, temp;
1208
1209 ✗ pos = avio_tell(pb);
1210 ✗ tag = avio_rl32(pb);
1211 ✗ if (tag == MKTAG('.','R','1','M')) {
1212 ✗ if (avio_rb16(pb) != 1)
1213 ✗ return AVERROR_INVALIDDATA;
1214 ✗ if (avio_r8(pb) != 1)
1215 ✗ return AVERROR_INVALIDDATA;
1216 ✗ len = avio_rb32(pb);
1217 ✗ avio_skip(pb, len);
1218 ✗ avio_skip(pb, 5);
1219 ✗ temp = avio_rb64(pb);
1220 ✗ while (!avio_feof(pb) && temp) {
1221 ✗ offset = temp;
1222 ✗ temp = avio_rb64(pb);
1223 }
1224 ✗ if (offset <= 0)
1225 ✗ return AVERROR_INVALIDDATA;
1226 ✗ avio_skip(pb, offset - avio_tell(pb));
1227 ✗ if (avio_r8(pb) != 1)
1228 ✗ return AVERROR_INVALIDDATA;
1229 ✗ len = avio_rb32(pb);
1230 ✗ avio_skip(pb, len);
1231 ✗ if (avio_r8(pb) != 2)
1232 ✗ return AVERROR_INVALIDDATA;
1233 ✗ avio_skip(pb, 16);
1234 ✗ pos = avio_tell(pb);
1235 ✗ tag = avio_rl32(pb);
1236 }
1237
1238 ✗ if (tag != MKTAG('.','R','E','C'))
1239 ✗ return AVERROR_INVALIDDATA;
1240
1241 ✗ if (avio_r8(pb) != 0)
1242 ✗ return AVERROR_INVALIDDATA;
1243 ✗ count = avio_rb32(pb);
1244 ✗ for (i = 0; i < count; i++) {
1245 ✗ if (avio_feof(pb))
1246 ✗ return AVERROR_INVALIDDATA;
1247
1248 ✗ type = avio_r8(pb);
1249 ✗ tlen = avio_rb32(pb);
1250 ✗ avio_get_str(pb, tlen, key, sizeof(key));
1251 ✗ len = avio_rb32(pb);
1252 ✗ if (type == 5) {
1253 ✗ avio_get_str(pb, len, val, sizeof(val));
1254 ✗ av_log(s, AV_LOG_DEBUG, "%s = '%s'\n", key, val);
1255 ✗ } else if (type == 4) {
1256 ✗ av_log(s, AV_LOG_DEBUG, "%s = '0x", key);
1257 ✗ for (j = 0; j < len; j++) {
1258 ✗ if (avio_feof(pb))
1259 ✗ return AVERROR_INVALIDDATA;
1260 ✗ av_log(s, AV_LOG_DEBUG, "%X", avio_r8(pb));
1261 }
1262 ✗ av_log(s, AV_LOG_DEBUG, "'\n");
1263 ✗ } else if (len == 4 && type == 3 && !strncmp(key, "StreamCount", tlen)) {
1264 ✗ nb_streams = value = avio_rb32(pb);
1265 ✗ } else if (len == 4 && type == 3) {
1266 ✗ value = avio_rb32(pb);
1267 ✗ av_log(s, AV_LOG_DEBUG, "%s = %d\n", key, value);
1268 } else {
1269 ✗ av_log(s, AV_LOG_DEBUG, "Skipping unsupported key: %s\n", key);
1270 ✗ avio_skip(pb, len);
1271 }
1272 }
1273
1274 ✗ for (n = 0; n < nb_streams; n++) {
1275 ✗ if (!(st = avformat_new_stream(s, NULL)) ||
1276 ✗ !(st->priv_data = ff_rm_alloc_rmstream()))
1277 ✗ return AVERROR(ENOMEM);
1278
1279 ✗ if (avio_r8(pb) != 1)
1280 ✗ return AVERROR_INVALIDDATA;
1281
1282 ✗ count = avio_rb32(pb);
1283 ✗ for (i = 0; i < count; i++) {
1284 ✗ if (avio_feof(pb))
1285 ✗ return AVERROR_INVALIDDATA;
1286
1287 ✗ type = avio_r8(pb);
1288 ✗ tlen = avio_rb32(pb);
1289 ✗ avio_get_str(pb, tlen, key, sizeof(key));
1290 ✗ len = avio_rb32(pb);
1291 ✗ if (type == 5) {
1292 ✗ avio_get_str(pb, len, val, sizeof(val));
1293 ✗ av_log(s, AV_LOG_DEBUG, "%s = '%s'\n", key, val);
1294 ✗ } else if (type == 4 && !strncmp(key, "OpaqueData", tlen)) {
1295 ✗ ret = ffio_ensure_seekback(pb, 4);
1296 ✗ if (ret < 0)
1297 ✗ return ret;
1298 ✗ if (avio_rb32(pb) == MKBETAG('M', 'L', 'T', 'I')) {
1299 ✗ ret = rm_read_multi(s, pb, st, NULL);
1300 } else {
1301 ✗ if (avio_feof(pb))
1302 ✗ return AVERROR_INVALIDDATA;
1303 ✗ avio_seek(pb, -4, SEEK_CUR);
1304 ✗ ret = ff_rm_read_mdpr_codecdata(s, pb, st, st->priv_data, len, NULL);
1305 }
1306
1307 ✗ if (ret < 0)
1308 ✗ return ret;
1309 ✗ } else if (type == 4) {
1310 int j;
1311
1312 ✗ av_log(s, AV_LOG_DEBUG, "%s = '0x", key);
1313 ✗ for (j = 0; j < len; j++) {
1314 ✗ if (avio_feof(pb))
1315 ✗ return AVERROR_INVALIDDATA;
1316 ✗ av_log(s, AV_LOG_DEBUG, "%X", avio_r8(pb));
1317 }
1318 ✗ av_log(s, AV_LOG_DEBUG, "'\n");
1319 ✗ } else if (len == 4 && type == 3 && !strncmp(key, "Duration", tlen)) {
1320 ✗ st->duration = avio_rb32(pb);
1321 ✗ } else if (len == 4 && type == 3) {
1322 ✗ value = avio_rb32(pb);
1323 ✗ av_log(s, AV_LOG_DEBUG, "%s = %d\n", key, value);
1324 } else {
1325 ✗ av_log(s, AV_LOG_DEBUG, "Skipping unsupported key: %s\n", key);
1326 ✗ avio_skip(pb, len);
1327 }
1328 }
1329 }
1330
1331 ✗ if (avio_r8(pb) != 6)
1332 ✗ return AVERROR_INVALIDDATA;
1333 ✗ avio_skip(pb, 12);
1334 ✗ avio_seek(pb, avio_rb64(pb) + pos, SEEK_SET);
1335 ✗ if (avio_r8(pb) != 8)
1336 ✗ return AVERROR_INVALIDDATA;
1337 ✗ avio_skip(pb, 8);
1338
1339 ✗ return 0;
1340 }
1341
1342 ✗ static int ivr_read_packet(AVFormatContext *s, AVPacket *pkt)
1343 {
1344 ✗ RMDemuxContext *rm = s->priv_data;
1345 ✗ int ret = AVERROR_EOF, opcode;
1346 ✗ AVIOContext *pb = s->pb;
1347 unsigned size, index;
1348 int64_t pos, pts;
1349
1350 ✗ if (avio_feof(pb) || rm->data_end)
1351 ✗ return AVERROR_EOF;
1352
1353 ✗ pos = avio_tell(pb);
1354
1355 for (;;) {
1356 ✗ if (rm->audio_pkt_cnt) {
1357 // If there are queued audio packet return them first
1358 AVStream *st;
1359
1360 ✗ st = s->streams[rm->audio_stream_num];
1361 ✗ ret = ff_rm_retrieve_cache(s, pb, st, st->priv_data, pkt);
1362 ✗ if (ret < 0) {
1363 ✗ return ret;
1364 }
1365 } else {
1366 ✗ if (rm->remaining_len) {
1367 ✗ avio_skip(pb, rm->remaining_len);
1368 ✗ rm->remaining_len = 0;
1369 }
1370
1371 ✗ if (avio_feof(pb))
1372 ✗ return AVERROR_EOF;
1373
1374 ✗ opcode = avio_r8(pb);
1375 ✗ if (opcode == 2) {
1376 AVStream *st;
1377 ✗ int seq = 1;
1378
1379 ✗ pts = avio_rb32(pb);
1380 ✗ index = avio_rb16(pb);
1381 ✗ if (index >= s->nb_streams)
1382 ✗ return AVERROR_INVALIDDATA;
1383
1384 ✗ avio_skip(pb, 4);
1385 ✗ size = avio_rb32(pb);
1386 ✗ avio_skip(pb, 4);
1387
1388 ✗ if (size < 1 || size > INT_MAX/4) {
1389 ✗ av_log(s, AV_LOG_ERROR, "size %u is invalid\n", size);
1390 ✗ return AVERROR_INVALIDDATA;
1391 }
1392
1393 ✗ st = s->streams[index];
1394 ✗ ret = ff_rm_parse_packet(s, pb, st, st->priv_data, size, pkt,
1395 &seq, 0, pts);
1396 ✗ if (ret < -1) {
1397 ✗ return ret;
1398 ✗ } else if (ret) {
1399 ✗ continue;
1400 }
1401
1402 ✗ pkt->pos = pos;
1403 ✗ pkt->pts = pts;
1404 ✗ pkt->stream_index = index;
1405 ✗ } else if (opcode == 7) {
1406 ✗ pos = avio_rb64(pb);
1407 ✗ if (!pos) {
1408 ✗ rm->data_end = 1;
1409 ✗ return AVERROR_EOF;
1410 }
1411 } else {
1412 ✗ av_log(s, AV_LOG_ERROR, "Unsupported opcode=%d at %"PRIX64"\n", opcode, avio_tell(pb) - 1);
1413 ✗ return AVERROR(EIO);
1414 }
1415 }
1416
1417 ✗ break;
1418 }
1419
1420 ✗ return ret;
1421 }
1422
1423 const FFInputFormat ff_ivr_demuxer = {
1424 .p.name = "ivr",
1425 .p.long_name = NULL_IF_CONFIG_SMALL("IVR (Internet Video Recording)"),
1426 .p.extensions = "ivr",
1427 .priv_data_size = sizeof(RMDemuxContext),
1428 .flags_internal = FF_INFMT_FLAG_INIT_CLEANUP,
1429 .read_probe = ivr_probe,
1430 .read_header = ivr_read_header,
1431 .read_packet = ivr_read_packet,
1432 .read_close = rm_read_close,
1433 };
1434