| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2008 Jaikrishnan Menon <realityman@gmx.net> | ||
| 3 | * Copyright (c) 2010 Peter Ross <pross@xvid.org> | ||
| 4 | * Copyright (c) 2010 Sebastian Vater <cdgs.basty@googlemail.com> | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | /** | ||
| 24 | * @file | ||
| 25 | * IFF file demuxer | ||
| 26 | * by Jaikrishnan Menon | ||
| 27 | * for more information on the .iff file format, visit: | ||
| 28 | * http://wiki.multimedia.cx/index.php?title=IFF | ||
| 29 | */ | ||
| 30 | |||
| 31 | #include <inttypes.h> | ||
| 32 | |||
| 33 | #include "libavutil/avassert.h" | ||
| 34 | #include "libavutil/channel_layout.h" | ||
| 35 | #include "libavutil/intreadwrite.h" | ||
| 36 | #include "libavutil/dict.h" | ||
| 37 | #include "libavutil/mem.h" | ||
| 38 | #include "libavcodec/bytestream.h" | ||
| 39 | #include "avformat.h" | ||
| 40 | #include "avio_internal.h" | ||
| 41 | #include "demux.h" | ||
| 42 | #include "id3v2.h" | ||
| 43 | #include "internal.h" | ||
| 44 | |||
| 45 | #define ID_8SVX MKTAG('8','S','V','X') | ||
| 46 | #define ID_16SV MKTAG('1','6','S','V') | ||
| 47 | #define ID_MAUD MKTAG('M','A','U','D') | ||
| 48 | #define ID_MHDR MKTAG('M','H','D','R') | ||
| 49 | #define ID_MDAT MKTAG('M','D','A','T') | ||
| 50 | #define ID_VHDR MKTAG('V','H','D','R') | ||
| 51 | #define ID_ATAK MKTAG('A','T','A','K') | ||
| 52 | #define ID_RLSE MKTAG('R','L','S','E') | ||
| 53 | #define ID_CHAN MKTAG('C','H','A','N') | ||
| 54 | #define ID_PBM MKTAG('P','B','M',' ') | ||
| 55 | #define ID_ILBM MKTAG('I','L','B','M') | ||
| 56 | #define ID_BMHD MKTAG('B','M','H','D') | ||
| 57 | #define ID_DGBL MKTAG('D','G','B','L') | ||
| 58 | #define ID_CAMG MKTAG('C','A','M','G') | ||
| 59 | #define ID_CMAP MKTAG('C','M','A','P') | ||
| 60 | #define ID_ACBM MKTAG('A','C','B','M') | ||
| 61 | #define ID_DEEP MKTAG('D','E','E','P') | ||
| 62 | #define ID_RGB8 MKTAG('R','G','B','8') | ||
| 63 | #define ID_RGBN MKTAG('R','G','B','N') | ||
| 64 | #define ID_DSD MKTAG('D','S','D',' ') | ||
| 65 | #define ID_DST MKTAG('D','S','T',' ') | ||
| 66 | #define ID_DSTC MKTAG('D','S','T','C') | ||
| 67 | #define ID_DSTF MKTAG('D','S','T','F') | ||
| 68 | #define ID_FRTE MKTAG('F','R','T','E') | ||
| 69 | #define ID_ANIM MKTAG('A','N','I','M') | ||
| 70 | #define ID_ANHD MKTAG('A','N','H','D') | ||
| 71 | #define ID_DLTA MKTAG('D','L','T','A') | ||
| 72 | #define ID_DPAN MKTAG('D','P','A','N') | ||
| 73 | |||
| 74 | #define ID_FORM MKTAG('F','O','R','M') | ||
| 75 | #define ID_FRM8 MKTAG('F','R','M','8') | ||
| 76 | #define ID_ANNO MKTAG('A','N','N','O') | ||
| 77 | #define ID_AUTH MKTAG('A','U','T','H') | ||
| 78 | #define ID_CHRS MKTAG('C','H','R','S') | ||
| 79 | #define ID_COPYRIGHT MKTAG('(','c',')',' ') | ||
| 80 | #define ID_CSET MKTAG('C','S','E','T') | ||
| 81 | #define ID_FVER MKTAG('F','V','E','R') | ||
| 82 | #define ID_NAME MKTAG('N','A','M','E') | ||
| 83 | #define ID_TEXT MKTAG('T','E','X','T') | ||
| 84 | #define ID_ABIT MKTAG('A','B','I','T') | ||
| 85 | #define ID_BODY MKTAG('B','O','D','Y') | ||
| 86 | #define ID_DBOD MKTAG('D','B','O','D') | ||
| 87 | #define ID_DPEL MKTAG('D','P','E','L') | ||
| 88 | #define ID_DLOC MKTAG('D','L','O','C') | ||
| 89 | #define ID_TVDC MKTAG('T','V','D','C') | ||
| 90 | |||
| 91 | #define LEFT 2 | ||
| 92 | #define RIGHT 4 | ||
| 93 | #define STEREO 6 | ||
| 94 | |||
| 95 | /** | ||
| 96 | * This number of bytes if added at the beginning of each AVPacket | ||
| 97 | * which contain additional information about video properties | ||
| 98 | * which has to be shared between demuxer and decoder. | ||
| 99 | * This number may change between frames, e.g. the demuxer might | ||
| 100 | * set it to smallest possible size of 2 to indicate that there's | ||
| 101 | * no extradata changing in this frame. | ||
| 102 | */ | ||
| 103 | #define IFF_EXTRA_VIDEO_SIZE 41 | ||
| 104 | |||
| 105 | typedef enum { | ||
| 106 | COMP_NONE, | ||
| 107 | COMP_FIB, | ||
| 108 | COMP_EXP | ||
| 109 | } svx8_compression_type; | ||
| 110 | |||
| 111 | typedef struct IffDemuxContext { | ||
| 112 | int is_64bit; ///< chunk size is 64-bit | ||
| 113 | int64_t body_pos; | ||
| 114 | int64_t body_end; | ||
| 115 | int64_t sbdy_pos; | ||
| 116 | int64_t resume_pos; | ||
| 117 | uint32_t body_size; | ||
| 118 | svx8_compression_type svx8_compression; | ||
| 119 | unsigned maud_bits; | ||
| 120 | unsigned maud_compression; | ||
| 121 | unsigned bitmap_compression; ///< delta compression method used | ||
| 122 | unsigned bpp; ///< bits per plane to decode (differs from bits_per_coded_sample if HAM) | ||
| 123 | unsigned ham; ///< 0 if non-HAM or number of hold bits (6 for bpp > 6, 4 otherwise) | ||
| 124 | unsigned flags; ///< 1 for EHB, 0 is no extra half darkening | ||
| 125 | unsigned transparency; ///< transparency color index in palette | ||
| 126 | unsigned masking; ///< masking method used | ||
| 127 | uint8_t tvdc[32]; ///< TVDC lookup table | ||
| 128 | uint32_t form_tag; | ||
| 129 | int audio_stream_index; | ||
| 130 | int video_stream_index; | ||
| 131 | } IffDemuxContext; | ||
| 132 | |||
| 133 | /* Metadata string read */ | ||
| 134 | 2 | static int get_metadata(AVFormatContext *s, | |
| 135 | const char *const tag, | ||
| 136 | const unsigned data_size) | ||
| 137 | { | ||
| 138 |
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2 | uint8_t *buf = ((data_size + 1) == 0) ? NULL : av_malloc(data_size + 1); |
| 139 | int res; | ||
| 140 | |||
| 141 |
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2 | if (!buf) |
| 142 | ✗ | return AVERROR(ENOMEM); | |
| 143 | |||
| 144 |
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2 | if ((res = ffio_read_size(s->pb, buf, data_size)) < 0) { |
| 145 | ✗ | av_free(buf); | |
| 146 | ✗ | return res; | |
| 147 | } | ||
| 148 | 2 | buf[data_size] = 0; | |
| 149 | 2 | av_dict_set(&s->metadata, tag, buf, AV_DICT_DONT_STRDUP_VAL); | |
| 150 | 2 | return 0; | |
| 151 | } | ||
| 152 | |||
| 153 | 7467 | static int iff_probe(const AVProbeData *p) | |
| 154 | { | ||
| 155 | 7467 | const uint8_t *d = p->buf; | |
| 156 | |||
| 157 |
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7467 | if ( (AV_RL32(d) == ID_FORM && |
| 158 |
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22 | (AV_RL32(d+8) == ID_8SVX || |
| 159 |
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21 | AV_RL32(d+8) == ID_16SV || |
| 160 |
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21 | AV_RL32(d+8) == ID_MAUD || |
| 161 |
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21 | AV_RL32(d+8) == ID_PBM || |
| 162 |
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20 | AV_RL32(d+8) == ID_ACBM || |
| 163 |
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20 | AV_RL32(d+8) == ID_DEEP || |
| 164 |
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20 | AV_RL32(d+8) == ID_ILBM || |
| 165 |
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19 | AV_RL32(d+8) == ID_RGB8 || |
| 166 |
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19 | AV_RL32(d+8) == ID_ANIM || |
| 167 |
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18 | AV_RL32(d+8) == ID_RGBN)) || |
| 168 |
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7463 | (AV_RL32(d) == ID_FRM8 && AV_RL32(d+12) == ID_DSD)) |
| 169 | 5 | return AVPROBE_SCORE_MAX; | |
| 170 | 7462 | return 0; | |
| 171 | } | ||
| 172 | |||
| 173 | static const AVCodecTag dsd_codec_tags[] = { | ||
| 174 | { AV_CODEC_ID_DSD_MSBF, ID_DSD }, | ||
| 175 | { AV_CODEC_ID_DST, ID_DST }, | ||
| 176 | { AV_CODEC_ID_NONE, 0 }, | ||
| 177 | }; | ||
| 178 | |||
| 179 | |||
| 180 | #define DSD_SLFT MKTAG('S','L','F','T') | ||
| 181 | #define DSD_SRGT MKTAG('S','R','G','T') | ||
| 182 | #define DSD_MLFT MKTAG('M','L','F','T') | ||
| 183 | #define DSD_MRGT MKTAG('M','R','G','T') | ||
| 184 | #define DSD_C MKTAG('C',' ',' ',' ') | ||
| 185 | #define DSD_LS MKTAG('L','S',' ',' ') | ||
| 186 | #define DSD_RS MKTAG('R','S',' ',' ') | ||
| 187 | #define DSD_LFE MKTAG('L','F','E',' ') | ||
| 188 | |||
| 189 | static const uint32_t dsd_stereo[] = { DSD_SLFT, DSD_SRGT }; | ||
| 190 | static const uint32_t dsd_5point0[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LS, DSD_RS }; | ||
| 191 | static const uint32_t dsd_5point1[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LFE, DSD_LS, DSD_RS }; | ||
| 192 | |||
| 193 | typedef struct { | ||
| 194 | AVChannelLayout layout; | ||
| 195 | const uint32_t * dsd_layout; | ||
| 196 | } DSDLayoutDesc; | ||
| 197 | |||
| 198 | static const DSDLayoutDesc dsd_channel_layout[] = { | ||
| 199 | { AV_CHANNEL_LAYOUT_STEREO, dsd_stereo }, | ||
| 200 | { AV_CHANNEL_LAYOUT_5POINT0, dsd_5point0 }, | ||
| 201 | { AV_CHANNEL_LAYOUT_5POINT1, dsd_5point1 }, | ||
| 202 | }; | ||
| 203 | |||
| 204 | static const AVChannelLayout dsd_loudspeaker_config[] = { | ||
| 205 | AV_CHANNEL_LAYOUT_STEREO, | ||
| 206 | { 0 }, { 0 }, | ||
| 207 | AV_CHANNEL_LAYOUT_5POINT0, AV_CHANNEL_LAYOUT_5POINT1, | ||
| 208 | }; | ||
| 209 | |||
| 210 | static const char * dsd_source_comment[] = { | ||
| 211 | "dsd_source_comment", | ||
| 212 | "analogue_source_comment", | ||
| 213 | "pcm_source_comment", | ||
| 214 | }; | ||
| 215 | |||
| 216 | static const char * dsd_history_comment[] = { | ||
| 217 | "general_remark", | ||
| 218 | "operator_name", | ||
| 219 | "creating_machine", | ||
| 220 | "timezone", | ||
| 221 | "file_revision" | ||
| 222 | }; | ||
| 223 | |||
| 224 | ✗ | static int parse_dsd_diin(AVFormatContext *s, AVStream *st, uint64_t eof) | |
| 225 | { | ||
| 226 | ✗ | AVIOContext *pb = s->pb; | |
| 227 | |||
| 228 | ✗ | while (av_sat_add64(avio_tell(pb), 12) <= eof && !avio_feof(pb)) { | |
| 229 | ✗ | uint32_t tag = avio_rl32(pb); | |
| 230 | ✗ | uint64_t size = avio_rb64(pb); | |
| 231 | ✗ | uint64_t orig_pos = avio_tell(pb); | |
| 232 | ✗ | const char * metadata_tag = NULL; | |
| 233 | |||
| 234 | ✗ | if (size >= INT64_MAX) | |
| 235 | ✗ | return AVERROR_INVALIDDATA; | |
| 236 | |||
| 237 | ✗ | switch(tag) { | |
| 238 | ✗ | case MKTAG('D','I','A','R'): metadata_tag = "artist"; break; | |
| 239 | ✗ | case MKTAG('D','I','T','I'): metadata_tag = "title"; break; | |
| 240 | } | ||
| 241 | |||
| 242 | ✗ | if (metadata_tag && size > 4) { | |
| 243 | ✗ | unsigned int tag_size = avio_rb32(pb); | |
| 244 | ✗ | int ret = get_metadata(s, metadata_tag, FFMIN(tag_size, size - 4)); | |
| 245 | ✗ | if (ret < 0) { | |
| 246 | ✗ | av_log(s, AV_LOG_ERROR, "cannot allocate metadata tag %s!\n", metadata_tag); | |
| 247 | ✗ | return ret; | |
| 248 | } | ||
| 249 | } | ||
| 250 | |||
| 251 | ✗ | avio_skip(pb, size - (avio_tell(pb) - orig_pos) + (size & 1)); | |
| 252 | } | ||
| 253 | |||
| 254 | ✗ | return 0; | |
| 255 | } | ||
| 256 | |||
| 257 | 1 | static int parse_dsd_prop(AVFormatContext *s, AVStream *st, uint64_t eof) | |
| 258 | { | ||
| 259 | 1 | AVIOContext *pb = s->pb; | |
| 260 | char abss[24]; | ||
| 261 | int hour, min, sec, i, ret, config; | ||
| 262 | int dsd_layout[6]; | ||
| 263 | ID3v2ExtraMeta *id3v2_extra_meta; | ||
| 264 | |||
| 265 |
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4 | while (av_sat_add64(avio_tell(pb), 12) <= eof && !avio_feof(pb)) { |
| 266 | 3 | uint32_t tag = avio_rl32(pb); | |
| 267 | 3 | uint64_t size = avio_rb64(pb); | |
| 268 | 3 | uint64_t orig_pos = avio_tell(pb); | |
| 269 | |||
| 270 |
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3 | if (size >= INT64_MAX) |
| 271 | ✗ | return AVERROR_INVALIDDATA; | |
| 272 | |||
| 273 |
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3 | switch(tag) { |
| 274 | ✗ | case MKTAG('A','B','S','S'): | |
| 275 | ✗ | if (size < 8) | |
| 276 | ✗ | return AVERROR_INVALIDDATA; | |
| 277 | ✗ | hour = avio_rb16(pb); | |
| 278 | ✗ | min = avio_r8(pb); | |
| 279 | ✗ | sec = avio_r8(pb); | |
| 280 | ✗ | snprintf(abss, sizeof(abss), "%02dh:%02dm:%02ds:%d", hour, min, sec, avio_rb32(pb)); | |
| 281 | ✗ | av_dict_set(&st->metadata, "absolute_start_time", abss, 0); | |
| 282 | ✗ | break; | |
| 283 | |||
| 284 | 1 | case MKTAG('C','H','N','L'): | |
| 285 |
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1 | if (size < 2) |
| 286 | ✗ | return AVERROR_INVALIDDATA; | |
| 287 | 1 | st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; | |
| 288 | 1 | st->codecpar->ch_layout.nb_channels = avio_rb16(pb); | |
| 289 |
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1 | if (size < 2 + st->codecpar->ch_layout.nb_channels * 4 || !st->codecpar->ch_layout.nb_channels) |
| 290 | ✗ | return AVERROR_INVALIDDATA; | |
| 291 |
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1 | if (st->codecpar->ch_layout.nb_channels > FF_ARRAY_ELEMS(dsd_layout)) { |
| 292 | ✗ | avpriv_request_sample(s, "channel layout"); | |
| 293 | ✗ | break; | |
| 294 | } | ||
| 295 |
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3 | for (i = 0; i < st->codecpar->ch_layout.nb_channels; i++) |
| 296 | 2 | dsd_layout[i] = avio_rl32(pb); | |
| 297 |
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1 | for (i = 0; i < FF_ARRAY_ELEMS(dsd_channel_layout); i++) { |
| 298 | 1 | const DSDLayoutDesc * d = &dsd_channel_layout[i]; | |
| 299 |
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1 | if (d->layout.nb_channels == st->codecpar->ch_layout.nb_channels && |
| 300 |
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1 | !memcmp(d->dsd_layout, dsd_layout, d->layout.nb_channels * sizeof(uint32_t))) { |
| 301 | 1 | st->codecpar->ch_layout = d->layout; | |
| 302 | 1 | break; | |
| 303 | } | ||
| 304 | } | ||
| 305 | 1 | break; | |
| 306 | |||
| 307 | 1 | case MKTAG('C','M','P','R'): | |
| 308 |
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1 | if (size < 4) |
| 309 | ✗ | return AVERROR_INVALIDDATA; | |
| 310 | 1 | st->codecpar->codec_tag = tag = avio_rl32(pb); | |
| 311 | 1 | st->codecpar->codec_id = ff_codec_get_id(dsd_codec_tags, tag); | |
| 312 |
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1 | if (!st->codecpar->codec_id) { |
| 313 | ✗ | av_log(s, AV_LOG_ERROR, "'%s' compression is not supported\n", | |
| 314 | ✗ | av_fourcc2str(tag)); | |
| 315 | ✗ | return AVERROR_PATCHWELCOME; | |
| 316 | } | ||
| 317 | 1 | break; | |
| 318 | |||
| 319 | 1 | case MKTAG('F','S',' ',' '): | |
| 320 |
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1 | if (size < 4) |
| 321 | ✗ | return AVERROR_INVALIDDATA; | |
| 322 | 1 | st->codecpar->sample_rate = avio_rb32(pb) / 8; | |
| 323 | 1 | break; | |
| 324 | |||
| 325 | ✗ | case MKTAG('I','D','3',' '): | |
| 326 | ✗ | ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, size); | |
| 327 | ✗ | if (id3v2_extra_meta) { | |
| 328 | ✗ | if ((ret = ff_id3v2_parse_apic(s, id3v2_extra_meta)) < 0 || | |
| 329 | ✗ | (ret = ff_id3v2_parse_chapters(s, id3v2_extra_meta)) < 0) { | |
| 330 | ✗ | ff_id3v2_free_extra_meta(&id3v2_extra_meta); | |
| 331 | ✗ | return ret; | |
| 332 | } | ||
| 333 | ✗ | ff_id3v2_free_extra_meta(&id3v2_extra_meta); | |
| 334 | } | ||
| 335 | |||
| 336 | ✗ | if (size < avio_tell(pb) - orig_pos) { | |
| 337 | ✗ | av_log(s, AV_LOG_ERROR, "id3 exceeds chunk size\n"); | |
| 338 | ✗ | return AVERROR_INVALIDDATA; | |
| 339 | } | ||
| 340 | ✗ | break; | |
| 341 | |||
| 342 | ✗ | case MKTAG('L','S','C','O'): | |
| 343 | ✗ | if (size < 2) | |
| 344 | ✗ | return AVERROR_INVALIDDATA; | |
| 345 | ✗ | config = avio_rb16(pb); | |
| 346 | ✗ | if (config != 0xFFFF) { | |
| 347 | ✗ | if (config < FF_ARRAY_ELEMS(dsd_loudspeaker_config)) | |
| 348 | ✗ | st->codecpar->ch_layout = dsd_loudspeaker_config[config]; | |
| 349 | ✗ | if (!st->codecpar->ch_layout.nb_channels) { | |
| 350 | ✗ | avpriv_request_sample(s, "loudspeaker configuration %d", config); | |
| 351 | ✗ | return AVERROR_PATCHWELCOME; | |
| 352 | } | ||
| 353 | } | ||
| 354 | ✗ | break; | |
| 355 | } | ||
| 356 | |||
| 357 | 3 | avio_skip(pb, size - (avio_tell(pb) - orig_pos) + (size & 1)); | |
| 358 | } | ||
| 359 | |||
| 360 | 1 | return 0; | |
| 361 | } | ||
| 362 | |||
| 363 | 11 | static int read_dst_frame(AVFormatContext *s, AVPacket *pkt) | |
| 364 | { | ||
| 365 | 11 | IffDemuxContext *iff = s->priv_data; | |
| 366 | 11 | AVIOContext *pb = s->pb; | |
| 367 | uint32_t chunk_id; | ||
| 368 | uint64_t chunk_pos, data_pos, data_size; | ||
| 369 | 11 | int ret = AVERROR_EOF; | |
| 370 | |||
| 371 |
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11 | if (s->nb_streams < 1) |
| 372 | ✗ | return AVERROR_INVALIDDATA; | |
| 373 | |||
| 374 |
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12 | while (!avio_feof(pb)) { |
| 375 | 12 | chunk_pos = avio_tell(pb); | |
| 376 |
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12 | if (chunk_pos >= iff->body_end) |
| 377 | ✗ | return AVERROR_EOF; | |
| 378 | |||
| 379 | 12 | chunk_id = avio_rl32(pb); | |
| 380 |
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12 | data_size = iff->is_64bit ? avio_rb64(pb) : avio_rb32(pb); |
| 381 | 12 | data_pos = avio_tell(pb); | |
| 382 | |||
| 383 |
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12 | if (data_size < 1 || data_size >= INT64_MAX) |
| 384 | ✗ | return AVERROR_INVALIDDATA; | |
| 385 | |||
| 386 |
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12 | switch (chunk_id) { |
| 387 | 11 | case ID_DSTF: | |
| 388 |
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11 | if (!pkt) { |
| 389 |
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1 | iff->body_pos = avio_tell(pb) - (iff->is_64bit ? 12 : 8); |
| 390 | 1 | iff->body_size = iff->body_end - iff->body_pos; | |
| 391 | 1 | return 0; | |
| 392 | } | ||
| 393 | 10 | ret = av_get_packet(pb, pkt, data_size); | |
| 394 |
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10 | if (ret < 0) |
| 395 | ✗ | return ret; | |
| 396 |
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10 | if (data_size & 1) |
| 397 | 4 | avio_skip(pb, 1); | |
| 398 | 10 | pkt->flags |= AV_PKT_FLAG_KEY; | |
| 399 | 10 | pkt->stream_index = iff->audio_stream_index; | |
| 400 | 10 | pkt->duration = s->streams[0]->codecpar->sample_rate / 75; | |
| 401 | 10 | pkt->pos = chunk_pos; | |
| 402 | |||
| 403 | 10 | chunk_pos = avio_tell(pb); | |
| 404 |
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10 | if (chunk_pos >= iff->body_end) |
| 405 | 1 | return 0; | |
| 406 | |||
| 407 | 9 | avio_seek(pb, chunk_pos, SEEK_SET); | |
| 408 | 9 | return 0; | |
| 409 | |||
| 410 | 1 | case ID_FRTE: | |
| 411 |
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1 | if (data_size < 4) |
| 412 | ✗ | return AVERROR_INVALIDDATA; | |
| 413 | 1 | s->streams[0]->duration = avio_rb32(pb) * (uint64_t)s->streams[0]->codecpar->sample_rate / 75; | |
| 414 | |||
| 415 | 1 | break; | |
| 416 | } | ||
| 417 | |||
| 418 | 1 | avio_skip(pb, data_size - (avio_tell(pb) - data_pos) + (data_size & 1)); | |
| 419 | } | ||
| 420 | |||
| 421 | ✗ | return ret; | |
| 422 | } | ||
| 423 | |||
| 424 | static const uint8_t deep_rgb24[] = {0, 0, 0, 3, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}; | ||
| 425 | static const uint8_t deep_rgba[] = {0, 0, 0, 4, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}; | ||
| 426 | static const uint8_t deep_bgra[] = {0, 0, 0, 4, 0, 3, 0, 8, 0, 2, 0, 8, 0, 1, 0, 8}; | ||
| 427 | static const uint8_t deep_argb[] = {0, 0, 0, 4, 0,17, 0, 8, 0, 1, 0, 8, 0, 2, 0, 8}; | ||
| 428 | static const uint8_t deep_abgr[] = {0, 0, 0, 4, 0,17, 0, 8, 0, 3, 0, 8, 0, 2, 0, 8}; | ||
| 429 | |||
| 430 | 6 | static AVStream * new_stream(AVFormatContext *s, AVStream **st_ptr, int *index_ptr, enum AVMediaType codec_type) | |
| 431 | { | ||
| 432 |
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6 | if (!*st_ptr) { |
| 433 | 6 | *st_ptr = avformat_new_stream(s, NULL); | |
| 434 |
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6 | if (!*st_ptr) |
| 435 | ✗ | return NULL; | |
| 436 | 6 | (*st_ptr)->codecpar->codec_type = codec_type; | |
| 437 | 6 | (*index_ptr) = (*st_ptr)->index; | |
| 438 | } | ||
| 439 | 6 | return *st_ptr; | |
| 440 | } | ||
| 441 | |||
| 442 | 5 | static int iff_read_header(AVFormatContext *s) | |
| 443 | { | ||
| 444 | 5 | IffDemuxContext *iff = s->priv_data; | |
| 445 | 5 | AVIOContext *pb = s->pb; | |
| 446 | 5 | AVStream *sta = NULL, *stv = NULL; | |
| 447 | uint8_t *buf; | ||
| 448 | uint32_t chunk_id; | ||
| 449 | uint64_t data_size; | ||
| 450 | 5 | uint32_t screenmode = 0, num, den; | |
| 451 | 5 | unsigned transparency = 0; | |
| 452 | 5 | unsigned masking = 0; // no mask | |
| 453 | uint8_t fmt[16]; | ||
| 454 | int fmt_size; | ||
| 455 | |||
| 456 | 5 | iff->audio_stream_index = -1; | |
| 457 | 5 | iff->video_stream_index = -1; | |
| 458 | 5 | iff->is_64bit = avio_rl32(pb) == ID_FRM8; | |
| 459 |
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5 | avio_skip(pb, iff->is_64bit ? 8 : 4); |
| 460 | 5 | iff->form_tag = avio_rl32(pb); | |
| 461 |
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5 | if (iff->form_tag == ID_ANIM) { |
| 462 | 1 | avio_skip(pb, 12); | |
| 463 | } | ||
| 464 | 5 | iff->bitmap_compression = -1; | |
| 465 | 5 | iff->svx8_compression = -1; | |
| 466 | 5 | iff->maud_bits = -1; | |
| 467 | 5 | iff->maud_compression = -1; | |
| 468 | |||
| 469 |
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244 | while(!avio_feof(pb)) { |
| 470 | uint64_t orig_pos; | ||
| 471 | int res; | ||
| 472 | 239 | const char *metadata_tag = NULL; | |
| 473 | int version, nb_comments, i; | ||
| 474 | 239 | chunk_id = avio_rl32(pb); | |
| 475 |
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239 | data_size = iff->is_64bit ? avio_rb64(pb) : avio_rb32(pb); |
| 476 | 239 | orig_pos = avio_tell(pb); | |
| 477 | |||
| 478 |
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239 | if (data_size >= INT64_MAX) |
| 479 | ✗ | return AVERROR_INVALIDDATA; | |
| 480 | |||
| 481 |
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239 | switch(chunk_id) { |
| 482 | 1 | case ID_VHDR: | |
| 483 |
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1 | if (data_size < 14) |
| 484 | ✗ | return AVERROR_INVALIDDATA; | |
| 485 |
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1 | if (!new_stream(s, &sta, &iff->audio_stream_index, AVMEDIA_TYPE_AUDIO)) |
| 486 | ✗ | return AVERROR(ENOMEM); | |
| 487 | 1 | avio_skip(pb, 12); | |
| 488 | 1 | sta->codecpar->sample_rate = avio_rb16(pb); | |
| 489 |
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1 | if (data_size >= 16) { |
| 490 | 1 | avio_skip(pb, 1); | |
| 491 | 1 | iff->svx8_compression = avio_r8(pb); | |
| 492 | } | ||
| 493 | 1 | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 494 | 20 | break; | |
| 495 | |||
| 496 | ✗ | case ID_MHDR: | |
| 497 | ✗ | if (data_size < 32) | |
| 498 | ✗ | return AVERROR_INVALIDDATA; | |
| 499 | ✗ | if (!new_stream(s, &sta, &iff->audio_stream_index, AVMEDIA_TYPE_AUDIO)) | |
| 500 | ✗ | return AVERROR(ENOMEM); | |
| 501 | ✗ | avio_skip(pb, 4); | |
| 502 | ✗ | iff->maud_bits = avio_rb16(pb); | |
| 503 | ✗ | avio_skip(pb, 2); | |
| 504 | ✗ | num = avio_rb32(pb); | |
| 505 | ✗ | den = avio_rb16(pb); | |
| 506 | ✗ | if (!den) | |
| 507 | ✗ | return AVERROR_INVALIDDATA; | |
| 508 | ✗ | avio_skip(pb, 2); | |
| 509 | ✗ | sta->codecpar->sample_rate = num / den; | |
| 510 | ✗ | sta->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; | |
| 511 | ✗ | sta->codecpar->ch_layout.nb_channels = avio_rb16(pb); | |
| 512 | ✗ | iff->maud_compression = avio_rb16(pb); | |
| 513 | ✗ | if (sta->codecpar->ch_layout.nb_channels == 1) | |
| 514 | ✗ | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 515 | ✗ | else if (sta->codecpar->ch_layout.nb_channels == 2) | |
| 516 | ✗ | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; | |
| 517 | ✗ | else if (sta->codecpar->ch_layout.nb_channels == 0) | |
| 518 | ✗ | return AVERROR_INVALIDDATA; | |
| 519 | ✗ | break; | |
| 520 | |||
| 521 | 5 | case ID_ABIT: | |
| 522 | case ID_BODY: | ||
| 523 | case ID_DBOD: | ||
| 524 | case ID_DSD: | ||
| 525 | case ID_DST: | ||
| 526 | case ID_MDAT: | ||
| 527 | 5 | iff->body_pos = avio_tell(pb); | |
| 528 |
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5 | if (iff->body_pos < 0 || iff->body_pos + data_size > INT64_MAX) |
| 529 | ✗ | return AVERROR_INVALIDDATA; | |
| 530 | |||
| 531 | 5 | iff->body_end = iff->body_pos + data_size; | |
| 532 | 5 | iff->body_size = data_size; | |
| 533 |
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5 | if (chunk_id == ID_DST) { |
| 534 | 1 | int ret = read_dst_frame(s, NULL); | |
| 535 |
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1 | if (ret < 0) |
| 536 | ✗ | return ret; | |
| 537 | } | ||
| 538 | 5 | break; | |
| 539 | |||
| 540 | ✗ | case ID_CHAN: | |
| 541 | ✗ | if (data_size < 4) | |
| 542 | ✗ | return AVERROR_INVALIDDATA; | |
| 543 | ✗ | if (!sta) | |
| 544 | ✗ | return AVERROR_INVALIDDATA; | |
| 545 | ✗ | if (avio_rb32(pb) < 6) { | |
| 546 | ✗ | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 547 | } else { | ||
| 548 | ✗ | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; | |
| 549 | } | ||
| 550 | ✗ | break; | |
| 551 | |||
| 552 | 2 | case ID_CAMG: | |
| 553 |
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2 | if (data_size < 4) |
| 554 | ✗ | return AVERROR_INVALIDDATA; | |
| 555 | 2 | screenmode = avio_rb32(pb); | |
| 556 | 2 | break; | |
| 557 | |||
| 558 | 3 | case ID_CMAP: | |
| 559 |
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3 | if (data_size < 3 || data_size > 768 || data_size % 3) { |
| 560 | ✗ | av_log(s, AV_LOG_ERROR, "Invalid CMAP chunk size %"PRIu64"\n", | |
| 561 | data_size); | ||
| 562 | ✗ | return AVERROR_INVALIDDATA; | |
| 563 | } | ||
| 564 |
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3 | if (!stv) |
| 565 | ✗ | return AVERROR_INVALIDDATA; | |
| 566 | 3 | res = ff_alloc_extradata(stv->codecpar, | |
| 567 | 3 | data_size + IFF_EXTRA_VIDEO_SIZE); | |
| 568 |
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3 | if (res < 0) |
| 569 | ✗ | return res; | |
| 570 |
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3 | if ((res = avio_read(pb, stv->codecpar->extradata + IFF_EXTRA_VIDEO_SIZE, data_size)) < 0) { |
| 571 | ✗ | av_freep(&stv->codecpar->extradata); | |
| 572 | ✗ | stv->codecpar->extradata_size = 0; | |
| 573 | ✗ | return res; | |
| 574 | } | ||
| 575 | 3 | break; | |
| 576 | |||
| 577 | 3 | case ID_BMHD: | |
| 578 |
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3 | if (data_size <= 8) |
| 579 | ✗ | return AVERROR_INVALIDDATA; | |
| 580 |
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3 | if (!new_stream(s, &stv, &iff->video_stream_index, AVMEDIA_TYPE_VIDEO)) |
| 581 | ✗ | return AVERROR(ENOMEM); | |
| 582 | 3 | stv->codecpar->width = avio_rb16(pb); | |
| 583 | 3 | stv->codecpar->height = avio_rb16(pb); | |
| 584 | 3 | avio_skip(pb, 4); // x, y offset | |
| 585 | 3 | stv->codecpar->bits_per_coded_sample = avio_r8(pb); | |
| 586 |
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3 | if (data_size >= 10) |
| 587 | 3 | masking = avio_r8(pb); | |
| 588 |
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3 | if (data_size >= 11) |
| 589 | 3 | iff->bitmap_compression = avio_r8(pb); | |
| 590 |
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3 | if (data_size >= 14) { |
| 591 | 3 | avio_skip(pb, 1); // padding | |
| 592 | 3 | transparency = avio_rb16(pb); | |
| 593 | } | ||
| 594 |
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3 | if (data_size >= 16) { |
| 595 | 3 | stv->sample_aspect_ratio.num = avio_r8(pb); | |
| 596 | 3 | stv->sample_aspect_ratio.den = avio_r8(pb); | |
| 597 | } | ||
| 598 | 3 | break; | |
| 599 | |||
| 600 | 1 | case ID_ANHD: | |
| 601 | 1 | break; | |
| 602 | |||
| 603 | ✗ | case ID_DPAN: | |
| 604 | ✗ | if (!stv) | |
| 605 | ✗ | return AVERROR_INVALIDDATA; | |
| 606 | ✗ | avio_skip(pb, 2); | |
| 607 | ✗ | stv->duration = avio_rb16(pb); | |
| 608 | ✗ | break; | |
| 609 | |||
| 610 | ✗ | case ID_DPEL: | |
| 611 | ✗ | if (data_size < 4 || (data_size & 3)) | |
| 612 | ✗ | return AVERROR_INVALIDDATA; | |
| 613 | ✗ | if (!stv) | |
| 614 | ✗ | return AVERROR_INVALIDDATA; | |
| 615 | ✗ | if ((fmt_size = avio_read(pb, fmt, sizeof(fmt))) < 0) | |
| 616 | ✗ | return fmt_size; | |
| 617 | ✗ | if (fmt_size == sizeof(deep_rgb24) && !memcmp(fmt, deep_rgb24, sizeof(deep_rgb24))) | |
| 618 | ✗ | stv->codecpar->format = AV_PIX_FMT_RGB24; | |
| 619 | ✗ | else if (fmt_size == sizeof(deep_rgba) && !memcmp(fmt, deep_rgba, sizeof(deep_rgba))) | |
| 620 | ✗ | stv->codecpar->format = AV_PIX_FMT_RGBA; | |
| 621 | ✗ | else if (fmt_size == sizeof(deep_bgra) && !memcmp(fmt, deep_bgra, sizeof(deep_bgra))) | |
| 622 | ✗ | stv->codecpar->format = AV_PIX_FMT_BGRA; | |
| 623 | ✗ | else if (fmt_size == sizeof(deep_argb) && !memcmp(fmt, deep_argb, sizeof(deep_argb))) | |
| 624 | ✗ | stv->codecpar->format = AV_PIX_FMT_ARGB; | |
| 625 | ✗ | else if (fmt_size == sizeof(deep_abgr) && !memcmp(fmt, deep_abgr, sizeof(deep_abgr))) | |
| 626 | ✗ | stv->codecpar->format = AV_PIX_FMT_ABGR; | |
| 627 | else { | ||
| 628 | ✗ | avpriv_request_sample(s, "color format %.16s", fmt); | |
| 629 | ✗ | return AVERROR_PATCHWELCOME; | |
| 630 | } | ||
| 631 | ✗ | break; | |
| 632 | |||
| 633 | ✗ | case ID_DGBL: | |
| 634 | ✗ | if (data_size < 8) | |
| 635 | ✗ | return AVERROR_INVALIDDATA; | |
| 636 | ✗ | if (!new_stream(s, &stv, &iff->video_stream_index, AVMEDIA_TYPE_VIDEO)) | |
| 637 | ✗ | return AVERROR(ENOMEM); | |
| 638 | ✗ | stv->codecpar->width = avio_rb16(pb); | |
| 639 | ✗ | stv->codecpar->height = avio_rb16(pb); | |
| 640 | ✗ | iff->bitmap_compression = avio_rb16(pb); | |
| 641 | ✗ | stv->sample_aspect_ratio.num = avio_r8(pb); | |
| 642 | ✗ | stv->sample_aspect_ratio.den = avio_r8(pb); | |
| 643 | ✗ | stv->codecpar->bits_per_coded_sample = 24; | |
| 644 | ✗ | break; | |
| 645 | |||
| 646 | ✗ | case ID_DLOC: | |
| 647 | ✗ | if (data_size < 4) | |
| 648 | ✗ | return AVERROR_INVALIDDATA; | |
| 649 | ✗ | if (!new_stream(s, &stv, &iff->video_stream_index, AVMEDIA_TYPE_VIDEO)) | |
| 650 | ✗ | return AVERROR(ENOMEM); | |
| 651 | ✗ | stv->codecpar->width = avio_rb16(pb); | |
| 652 | ✗ | stv->codecpar->height = avio_rb16(pb); | |
| 653 | ✗ | break; | |
| 654 | |||
| 655 | ✗ | case ID_TVDC: | |
| 656 | ✗ | if (data_size < sizeof(iff->tvdc)) | |
| 657 | ✗ | return AVERROR_INVALIDDATA; | |
| 658 | ✗ | res = avio_read(pb, iff->tvdc, sizeof(iff->tvdc)); | |
| 659 | ✗ | if (res < 0) | |
| 660 | ✗ | return res; | |
| 661 | ✗ | break; | |
| 662 | |||
| 663 | 1 | case MKTAG('S','X','H','D'): | |
| 664 |
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1 | if (data_size < 22) |
| 665 | ✗ | return AVERROR_INVALIDDATA; | |
| 666 |
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1 | if (!new_stream(s, &sta, &iff->audio_stream_index, AVMEDIA_TYPE_AUDIO)) |
| 667 | ✗ | return AVERROR(ENOMEM); | |
| 668 | 1 | sta->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 669 |
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1 | switch(avio_r8(pb)) { |
| 670 | 1 | case 8: | |
| 671 | 1 | sta->codecpar->codec_id = AV_CODEC_ID_PCM_S8_PLANAR; | |
| 672 | 1 | break; | |
| 673 | ✗ | default: | |
| 674 | ✗ | avpriv_request_sample(s, "sound bitdepth"); | |
| 675 | ✗ | return AVERROR_INVALIDDATA; | |
| 676 | } | ||
| 677 | 1 | avio_skip(pb, 9); | |
| 678 |
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1 | if (avio_rb32(pb)) { |
| 679 | ✗ | avpriv_request_sample(s, "sound compression"); | |
| 680 | ✗ | return AVERROR_INVALIDDATA; | |
| 681 | } | ||
| 682 | 1 | avio_skip(pb, 1); | |
| 683 | 1 | sta->codecpar->ch_layout.nb_channels = avio_r8(pb); | |
| 684 |
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1 | if (!sta->codecpar->ch_layout.nb_channels) |
| 685 | ✗ | return AVERROR_INVALIDDATA; | |
| 686 |
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1 | if (sta->codecpar->ch_layout.nb_channels == 1) |
| 687 | ✗ | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 688 |
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1 | else if (sta->codecpar->ch_layout.nb_channels == 2) |
| 689 | 1 | sta->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; | |
| 690 | 1 | sta->codecpar->sample_rate = avio_rb32(pb); | |
| 691 | 1 | avpriv_set_pts_info(sta, 64, 1, sta->codecpar->sample_rate); | |
| 692 | 1 | avio_skip(pb, 2); | |
| 693 | 1 | break; | |
| 694 | |||
| 695 | 1 | case ID_ANNO: | |
| 696 | 1 | case ID_TEXT: metadata_tag = "comment"; break; | |
| 697 | ✗ | case ID_AUTH: metadata_tag = "artist"; break; | |
| 698 | ✗ | case ID_COPYRIGHT: metadata_tag = "copyright"; break; | |
| 699 | 1 | case ID_NAME: metadata_tag = "title"; break; | |
| 700 | |||
| 701 | /* DSD tags */ | ||
| 702 | |||
| 703 | 1 | case MKTAG('F','V','E','R'): | |
| 704 |
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1 | if (iff->form_tag == ID_DSD || iff->form_tag == ID_DST) { |
| 705 |
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1 | if (data_size < 4) |
| 706 | ✗ | return AVERROR_INVALIDDATA; | |
| 707 | 1 | version = avio_rb32(pb); | |
| 708 | 1 | av_log(s, AV_LOG_DEBUG, "DSIFF v%d.%d.%d.%d\n",version >> 24, (version >> 16) & 0xFF, (version >> 8) & 0xFF, version & 0xFF); | |
| 709 |
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1 | if (!new_stream(s, &sta, &iff->audio_stream_index, AVMEDIA_TYPE_AUDIO)) |
| 710 | ✗ | return AVERROR(ENOMEM); | |
| 711 | 1 | sta->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 712 | } | ||
| 713 | 1 | break; | |
| 714 | |||
| 715 | ✗ | case MKTAG('D','I','I','N'): | |
| 716 | ✗ | if (!sta) | |
| 717 | ✗ | return AVERROR_INVALIDDATA; | |
| 718 | ✗ | res = parse_dsd_diin(s, sta, orig_pos + data_size); | |
| 719 | ✗ | if (res < 0) | |
| 720 | ✗ | return res; | |
| 721 | ✗ | break; | |
| 722 | |||
| 723 | 1 | case MKTAG('P','R','O','P'): | |
| 724 |
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1 | if (data_size < 4) |
| 725 | ✗ | return AVERROR_INVALIDDATA; | |
| 726 |
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|
1 | if (avio_rl32(pb) != MKTAG('S','N','D',' ')) { |
| 727 | ✗ | avpriv_request_sample(s, "unknown property type"); | |
| 728 | ✗ | break; | |
| 729 | } | ||
| 730 |
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|
1 | if (!sta) |
| 731 | ✗ | return AVERROR_INVALIDDATA; | |
| 732 | 1 | res = parse_dsd_prop(s, sta, orig_pos + data_size); | |
| 733 |
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|
1 | if (res < 0) |
| 734 | ✗ | return res; | |
| 735 | 1 | break; | |
| 736 | |||
| 737 | ✗ | case MKTAG('C','O','M','T'): | |
| 738 | ✗ | if (data_size < 2) | |
| 739 | ✗ | return AVERROR_INVALIDDATA; | |
| 740 | ✗ | if (!sta) | |
| 741 | ✗ | return AVERROR_INVALIDDATA; | |
| 742 | ✗ | nb_comments = avio_rb16(pb); | |
| 743 | ✗ | for (i = 0; i < nb_comments; i++) { | |
| 744 | int year, mon, day, hour, min, type, ref; | ||
| 745 | char tmp[24]; | ||
| 746 | const char *tag; | ||
| 747 | int metadata_size; | ||
| 748 | |||
| 749 | ✗ | year = avio_rb16(pb); | |
| 750 | ✗ | mon = avio_r8(pb); | |
| 751 | ✗ | day = avio_r8(pb); | |
| 752 | ✗ | hour = avio_r8(pb); | |
| 753 | ✗ | min = avio_r8(pb); | |
| 754 | ✗ | snprintf(tmp, sizeof(tmp), "%04d-%02d-%02d %02d:%02d", year, mon, day, hour, min); | |
| 755 | ✗ | av_dict_set(&sta->metadata, "comment_time", tmp, 0); | |
| 756 | |||
| 757 | ✗ | type = avio_rb16(pb); | |
| 758 | ✗ | ref = avio_rb16(pb); | |
| 759 | ✗ | switch (type) { | |
| 760 | ✗ | case 1: | |
| 761 | ✗ | if (!i) | |
| 762 | ✗ | tag = "channel_comment"; | |
| 763 | else { | ||
| 764 | ✗ | snprintf(tmp, sizeof(tmp), "channel%d_comment", ref); | |
| 765 | ✗ | tag = tmp; | |
| 766 | } | ||
| 767 | ✗ | break; | |
| 768 | ✗ | case 2: | |
| 769 | ✗ | tag = ref < FF_ARRAY_ELEMS(dsd_source_comment) ? dsd_source_comment[ref] : "source_comment"; | |
| 770 | ✗ | break; | |
| 771 | ✗ | case 3: | |
| 772 | ✗ | tag = ref < FF_ARRAY_ELEMS(dsd_history_comment) ? dsd_history_comment[ref] : "file_history"; | |
| 773 | ✗ | break; | |
| 774 | ✗ | default: | |
| 775 | ✗ | tag = "comment"; | |
| 776 | } | ||
| 777 | |||
| 778 | ✗ | metadata_size = avio_rb32(pb); | |
| 779 | ✗ | if ((res = get_metadata(s, tag, metadata_size)) < 0) { | |
| 780 | ✗ | av_log(s, AV_LOG_ERROR, "cannot allocate metadata tag %s!\n", tag); | |
| 781 | ✗ | return res; | |
| 782 | } | ||
| 783 | |||
| 784 | ✗ | if (metadata_size & 1) | |
| 785 | ✗ | avio_skip(pb, 1); | |
| 786 | } | ||
| 787 | ✗ | break; | |
| 788 | } | ||
| 789 | |||
| 790 |
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239 | if (metadata_tag) { |
| 791 |
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2 | if ((res = get_metadata(s, metadata_tag, data_size)) < 0) { |
| 792 | ✗ | av_log(s, AV_LOG_ERROR, "cannot allocate metadata tag %s!\n", metadata_tag); | |
| 793 | ✗ | return res; | |
| 794 | } | ||
| 795 | } | ||
| 796 | 239 | avio_skip(pb, data_size - (avio_tell(pb) - orig_pos) + (data_size & 1)); | |
| 797 | } | ||
| 798 | |||
| 799 |
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5 | if ((!sta && !stv) || |
| 800 |
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5 | (iff->form_tag == ID_ANIM && !stv) || |
| 801 |
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5 | (iff->form_tag != ID_ANIM && sta && stv)) |
| 802 | ✗ | return AVERROR_INVALIDDATA; | |
| 803 | |||
| 804 |
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5 | if (iff->form_tag == ID_ANIM) |
| 805 | 1 | avio_seek(pb, 12, SEEK_SET); | |
| 806 | else | ||
| 807 | 4 | avio_seek(pb, iff->body_pos, SEEK_SET); | |
| 808 | |||
| 809 |
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5 | if (sta) { |
| 810 | 3 | avpriv_set_pts_info(sta, 32, 1, sta->codecpar->sample_rate); | |
| 811 | |||
| 812 |
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3 | if (sta->codecpar->codec_id != AV_CODEC_ID_NONE) { |
| 813 | /* codec_id already set by PROP or SXHD chunk */ | ||
| 814 |
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1 | } else if (iff->form_tag == ID_16SV) |
| 815 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE_PLANAR; | |
| 816 |
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1 | else if (iff->form_tag == ID_MAUD) { |
| 817 | ✗ | if (iff->maud_bits == 8 && !iff->maud_compression) { | |
| 818 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_U8; | |
| 819 | ✗ | } else if (iff->maud_bits == 16 && !iff->maud_compression) { | |
| 820 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE; | |
| 821 | ✗ | } else if (iff->maud_bits == 8 && iff->maud_compression == 2) { | |
| 822 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_ALAW; | |
| 823 | ✗ | } else if (iff->maud_bits == 8 && iff->maud_compression == 3) { | |
| 824 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_MULAW; | |
| 825 | } else { | ||
| 826 | ✗ | avpriv_request_sample(s, "compression %d and bit depth %d", iff->maud_compression, iff->maud_bits); | |
| 827 | ✗ | return AVERROR_PATCHWELCOME; | |
| 828 | } | ||
| 829 | } else { | ||
| 830 |
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1 | switch (iff->svx8_compression) { |
| 831 | ✗ | case COMP_NONE: | |
| 832 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_PCM_S8_PLANAR; | |
| 833 | ✗ | break; | |
| 834 | 1 | case COMP_FIB: | |
| 835 | 1 | sta->codecpar->codec_id = AV_CODEC_ID_8SVX_FIB; | |
| 836 | 1 | break; | |
| 837 | ✗ | case COMP_EXP: | |
| 838 | ✗ | sta->codecpar->codec_id = AV_CODEC_ID_8SVX_EXP; | |
| 839 | ✗ | break; | |
| 840 | ✗ | default: | |
| 841 | ✗ | av_log(s, AV_LOG_ERROR, | |
| 842 | ✗ | "Unknown SVX8 compression method '%d'\n", iff->svx8_compression); | |
| 843 | ✗ | return -1; | |
| 844 | } | ||
| 845 | } | ||
| 846 | |||
| 847 | 3 | sta->codecpar->bits_per_coded_sample = av_get_bits_per_sample(sta->codecpar->codec_id); | |
| 848 | 3 | sta->codecpar->bit_rate = (int64_t)sta->codecpar->ch_layout.nb_channels * | |
| 849 | 3 | sta->codecpar->sample_rate * | |
| 850 | 3 | sta->codecpar->bits_per_coded_sample; | |
| 851 | 3 | sta->codecpar->block_align = sta->codecpar->ch_layout.nb_channels * | |
| 852 | 3 | sta->codecpar->bits_per_coded_sample; | |
| 853 |
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3 | if ((sta->codecpar->codec_tag == ID_DSD || iff->form_tag == ID_MAUD) && sta->codecpar->block_align <= 0) |
| 854 | ✗ | return AVERROR_INVALIDDATA; | |
| 855 | } | ||
| 856 | |||
| 857 |
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5 | if (stv) { |
| 858 | 3 | iff->bpp = stv->codecpar->bits_per_coded_sample; | |
| 859 |
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3 | if (iff->form_tag == ID_ANIM) |
| 860 | 1 | avpriv_set_pts_info(stv, 32, 1, 60); | |
| 861 |
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3 | if ((screenmode & 0x800 /* Hold And Modify */) && iff->bpp <= 8) { |
| 862 | ✗ | iff->ham = iff->bpp > 6 ? 6 : 4; | |
| 863 | ✗ | stv->codecpar->bits_per_coded_sample = 24; | |
| 864 | } | ||
| 865 |
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3 | iff->flags = (screenmode & 0x80 /* Extra HalfBrite */) && iff->bpp <= 8; |
| 866 | 3 | iff->masking = masking; | |
| 867 | 3 | iff->transparency = transparency; | |
| 868 | |||
| 869 |
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3 | if (!stv->codecpar->extradata) { |
| 870 | ✗ | int ret = ff_alloc_extradata(stv->codecpar, IFF_EXTRA_VIDEO_SIZE); | |
| 871 | ✗ | if (ret < 0) | |
| 872 | ✗ | return ret; | |
| 873 | } | ||
| 874 |
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3 | av_assert0(stv->codecpar->extradata_size >= IFF_EXTRA_VIDEO_SIZE); |
| 875 | 3 | buf = stv->codecpar->extradata; | |
| 876 | 3 | bytestream_put_be16(&buf, IFF_EXTRA_VIDEO_SIZE); | |
| 877 | 3 | bytestream_put_byte(&buf, iff->bitmap_compression); | |
| 878 | 3 | bytestream_put_byte(&buf, iff->bpp); | |
| 879 | 3 | bytestream_put_byte(&buf, iff->ham); | |
| 880 | 3 | bytestream_put_byte(&buf, iff->flags); | |
| 881 | 3 | bytestream_put_be16(&buf, iff->transparency); | |
| 882 | 3 | bytestream_put_byte(&buf, iff->masking); | |
| 883 | 3 | bytestream_put_buffer(&buf, iff->tvdc, sizeof(iff->tvdc)); | |
| 884 | 3 | stv->codecpar->codec_id = AV_CODEC_ID_IFF_ILBM; | |
| 885 | 3 | stv->codecpar->codec_tag = iff->form_tag; // codec_tag used by ByteRun1 decoder to distinguish progressive (PBM) and interlaced (ILBM) content | |
| 886 | } | ||
| 887 | |||
| 888 | 5 | return 0; | |
| 889 | } | ||
| 890 | |||
| 891 | 11 | static unsigned get_anim_duration(uint8_t *buf, int size) | |
| 892 | { | ||
| 893 | GetByteContext gb; | ||
| 894 | |||
| 895 | 11 | bytestream2_init(&gb, buf, size); | |
| 896 | 11 | bytestream2_skip(&gb, 4); | |
| 897 |
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16 | while (bytestream2_get_bytes_left(&gb) > 8) { |
| 898 | 16 | unsigned chunk = bytestream2_get_le32(&gb); | |
| 899 | 16 | unsigned size = bytestream2_get_be32(&gb); | |
| 900 | |||
| 901 |
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16 | if (chunk == ID_ANHD) { |
| 902 |
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11 | if (size < 40) |
| 903 | ✗ | break; | |
| 904 | 11 | bytestream2_skip(&gb, 14); | |
| 905 | 11 | return bytestream2_get_be32(&gb); | |
| 906 | } else { | ||
| 907 | 5 | bytestream2_skip(&gb, size + size & 1); | |
| 908 | } | ||
| 909 | } | ||
| 910 | ✗ | return 10; | |
| 911 | } | ||
| 912 | |||
| 913 | 11 | static int64_t get_sbdy_offset(uint8_t *buf, int size) | |
| 914 | { | ||
| 915 | GetByteContext gb; | ||
| 916 | |||
| 917 | 11 | bytestream2_init(&gb, buf, size); | |
| 918 | 11 | bytestream2_skip(&gb, 4); | |
| 919 |
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1460 | while (bytestream2_get_bytes_left(&gb) > 8) { |
| 920 | 1459 | unsigned chunk = bytestream2_get_le32(&gb); | |
| 921 | 1459 | unsigned size = bytestream2_get_be32(&gb); | |
| 922 | |||
| 923 |
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1459 | if (chunk == MKTAG('S','B','D','Y')) |
| 924 | 10 | return bytestream2_tell(&gb); | |
| 925 | |||
| 926 | 1449 | bytestream2_skip(&gb, size + size & 1); | |
| 927 | } | ||
| 928 | |||
| 929 | 1 | return 0; | |
| 930 | } | ||
| 931 | |||
| 932 | 44 | static int iff_read_packet(AVFormatContext *s, | |
| 933 | AVPacket *pkt) | ||
| 934 | { | ||
| 935 | 44 | IffDemuxContext *iff = s->priv_data; | |
| 936 | 44 | AVIOContext *pb = s->pb; | |
| 937 | int ret; | ||
| 938 | 44 | int64_t pos = avio_tell(pb); | |
| 939 | |||
| 940 |
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44 | if (avio_feof(pb)) |
| 941 | 1 | return AVERROR_EOF; | |
| 942 |
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43 | if (iff->form_tag != ID_ANIM && pos >= iff->body_end) |
| 943 | 8 | return AVERROR_EOF; | |
| 944 | |||
| 945 |
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35 | if (iff->sbdy_pos) { |
| 946 | int64_t data_size; | ||
| 947 | 10 | avio_seek(pb, iff->sbdy_pos, SEEK_SET); | |
| 948 |
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10 | data_size = iff->is_64bit ? avio_rb64(pb) : avio_rb32(pb); |
| 949 | 10 | ret = av_get_packet(pb, pkt, data_size); | |
| 950 | 10 | pkt->stream_index = iff->audio_stream_index; | |
| 951 | 10 | pkt->duration = data_size / s->streams[iff->audio_stream_index]->codecpar->ch_layout.nb_channels; | |
| 952 | 10 | pkt->pos = INT_MAX; /* not seekable */ | |
| 953 | |||
| 954 | 10 | iff->sbdy_pos = 0; | |
| 955 | 10 | avio_seek(pb, iff->resume_pos, SEEK_SET); | |
| 956 | 10 | return ret; | |
| 957 | } | ||
| 958 | |||
| 959 |
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25 | if (iff->audio_stream_index >= 0 && iff->video_stream_index < 0) { /* audio only */ |
| 960 | 11 | AVStream *sta = s->streams[iff->audio_stream_index]; | |
| 961 |
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11 | if (sta->codecpar->codec_tag == ID_DSD || iff->form_tag == ID_MAUD) { |
| 962 | ✗ | ret = av_get_packet(pb, pkt, FFMIN(iff->body_end - pos, 1024 * sta->codecpar->block_align)); | |
| 963 |
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11 | } else if (sta->codecpar->codec_tag == ID_DST) { |
| 964 | 10 | return read_dst_frame(s, pkt); | |
| 965 | } else { | ||
| 966 |
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1 | if (iff->body_size > INT_MAX || !iff->body_size) |
| 967 | ✗ | return AVERROR_INVALIDDATA; | |
| 968 | 1 | ret = av_get_packet(pb, pkt, iff->body_size); | |
| 969 | } | ||
| 970 | 1 | pkt->stream_index = iff->audio_stream_index; | |
| 971 |
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14 | } else if (iff->form_tag == ID_ANIM) { |
| 972 | uint64_t data_size, orig_pos; | ||
| 973 | uint32_t chunk_id, chunk_id2; | ||
| 974 | |||
| 975 |
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136 | while (!avio_feof(pb)) { |
| 976 | 135 | orig_pos = avio_tell(pb); | |
| 977 | 135 | chunk_id = avio_rl32(pb); | |
| 978 | 135 | data_size = avio_rb32(pb); | |
| 979 | 135 | chunk_id2 = avio_rl32(pb); | |
| 980 | |||
| 981 |
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135 | if (chunk_id == ID_FORM && |
| 982 | chunk_id2 == ID_ILBM) { | ||
| 983 | 11 | avio_skip(pb, -4); | |
| 984 | 11 | break; | |
| 985 |
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124 | } else if (chunk_id == ID_FORM && |
| 986 | chunk_id2 == ID_ANIM) { | ||
| 987 | ✗ | continue; | |
| 988 | } else { | ||
| 989 | 124 | avio_skip(pb, data_size); | |
| 990 | } | ||
| 991 | } | ||
| 992 |
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12 | if (pb->eof_reached) |
| 993 | 1 | return AVERROR_EOF; | |
| 994 | |||
| 995 | 11 | ret = av_get_packet(pb, pkt, data_size); | |
| 996 | 11 | pkt->stream_index = iff->video_stream_index; | |
| 997 | 11 | pkt->pos = orig_pos; | |
| 998 | 11 | pkt->duration = get_anim_duration(pkt->data, pkt->size); | |
| 999 |
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11 | if (pos == 12) |
| 1000 | 1 | pkt->flags |= AV_PKT_FLAG_KEY; | |
| 1001 | |||
| 1002 |
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11 | if (iff->audio_stream_index >= 0) { |
| 1003 | 11 | iff->sbdy_pos = get_sbdy_offset(pkt->data, pkt->size); | |
| 1004 |
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11 | if (iff->sbdy_pos) { |
| 1005 | 10 | iff->sbdy_pos += orig_pos + 4; | |
| 1006 | 10 | iff->resume_pos = avio_tell(pb); | |
| 1007 | } | ||
| 1008 | } | ||
| 1009 |
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2 | } else if (iff->video_stream_index >= 0 && iff->audio_stream_index < 0) { /* video only */ |
| 1010 |
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2 | if (iff->body_size > INT_MAX || !iff->body_size) |
| 1011 | ✗ | return AVERROR_INVALIDDATA; | |
| 1012 | 2 | ret = av_get_packet(pb, pkt, iff->body_size); | |
| 1013 | 2 | pkt->stream_index = iff->video_stream_index; | |
| 1014 | 2 | pkt->pos = pos; | |
| 1015 |
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2 | if (pos == iff->body_pos) |
| 1016 | 2 | pkt->flags |= AV_PKT_FLAG_KEY; | |
| 1017 | } else { | ||
| 1018 | ✗ | av_assert0(0); | |
| 1019 | } | ||
| 1020 | |||
| 1021 | 14 | return ret; | |
| 1022 | } | ||
| 1023 | |||
| 1024 | const FFInputFormat ff_iff_demuxer = { | ||
| 1025 | .p.name = "iff", | ||
| 1026 | .p.long_name = NULL_IF_CONFIG_SMALL("IFF (Interchange File Format)"), | ||
| 1027 | .p.flags = AVFMT_GENERIC_INDEX | AVFMT_NO_BYTE_SEEK, | ||
| 1028 | .priv_data_size = sizeof(IffDemuxContext), | ||
| 1029 | .read_probe = iff_probe, | ||
| 1030 | .read_header = iff_read_header, | ||
| 1031 | .read_packet = iff_read_packet, | ||
| 1032 | }; | ||
| 1033 |