| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * RSD demuxer | ||
| 3 | * Copyright (c) 2013 James Almer | ||
| 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 "libavutil/intreadwrite.h" | ||
| 23 | #include "avformat.h" | ||
| 24 | #include "avio.h" | ||
| 25 | #include "avio_internal.h" | ||
| 26 | #include "demux.h" | ||
| 27 | #include "internal.h" | ||
| 28 | |||
| 29 | static const AVCodecTag rsd_tags[] = { | ||
| 30 | { AV_CODEC_ID_ADPCM_PSX, MKTAG('V','A','G',' ') }, | ||
| 31 | { AV_CODEC_ID_ADPCM_THP_LE, MKTAG('G','A','D','P') }, | ||
| 32 | { AV_CODEC_ID_ADPCM_THP, MKTAG('W','A','D','P') }, | ||
| 33 | { AV_CODEC_ID_ADPCM_IMA_RAD, MKTAG('R','A','D','P') }, | ||
| 34 | { AV_CODEC_ID_ADPCM_IMA_WAV, MKTAG('X','A','D','P') }, | ||
| 35 | { AV_CODEC_ID_PCM_S16BE, MKTAG('P','C','M','B') }, | ||
| 36 | { AV_CODEC_ID_PCM_S16LE, MKTAG('P','C','M',' ') }, | ||
| 37 | { AV_CODEC_ID_XMA2, MKTAG('X','M','A',' ') }, | ||
| 38 | { AV_CODEC_ID_NONE, 0 }, | ||
| 39 | }; | ||
| 40 | |||
| 41 | static const uint32_t rsd_unsupported_tags[] = { | ||
| 42 | MKTAG('O','G','G',' '), | ||
| 43 | }; | ||
| 44 | |||
| 45 | ✗ | static int rsd_probe(const AVProbeData *p) | |
| 46 | { | ||
| 47 | ✗ | if (memcmp(p->buf, "RSD", 3) || p->buf[3] - '0' < 2 || p->buf[3] - '0' > 6) | |
| 48 | ✗ | return 0; | |
| 49 | ✗ | if (AV_RL32(p->buf + 8) > 256 || !AV_RL32(p->buf + 8)) | |
| 50 | ✗ | return AVPROBE_SCORE_MAX / 8; | |
| 51 | ✗ | if (AV_RL32(p->buf + 16) > 8*48000 || !AV_RL32(p->buf + 16)) | |
| 52 | ✗ | return AVPROBE_SCORE_MAX / 8; | |
| 53 | ✗ | return AVPROBE_SCORE_MAX; | |
| 54 | } | ||
| 55 | |||
| 56 | ✗ | static int rsd_read_header(AVFormatContext *s) | |
| 57 | { | ||
| 58 | ✗ | AVIOContext *pb = s->pb; | |
| 59 | ✗ | int i, ret, version, start = 0x800; | |
| 60 | AVCodecParameters *par; | ||
| 61 | ✗ | AVStream *st = avformat_new_stream(s, NULL); | |
| 62 | |||
| 63 | ✗ | if (!st) | |
| 64 | ✗ | return AVERROR(ENOMEM); | |
| 65 | |||
| 66 | ✗ | avio_skip(pb, 3); // "RSD" | |
| 67 | ✗ | version = avio_r8(pb) - '0'; | |
| 68 | |||
| 69 | ✗ | par = st->codecpar; | |
| 70 | ✗ | par->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 71 | ✗ | par->codec_tag = avio_rl32(pb); | |
| 72 | ✗ | par->codec_id = ff_codec_get_id(rsd_tags, par->codec_tag); | |
| 73 | ✗ | if (!par->codec_id) { | |
| 74 | ✗ | const char *tag_buf = av_fourcc2str(par->codec_tag); | |
| 75 | ✗ | for (i=0; i < FF_ARRAY_ELEMS(rsd_unsupported_tags); i++) { | |
| 76 | ✗ | if (par->codec_tag == rsd_unsupported_tags[i]) { | |
| 77 | ✗ | avpriv_request_sample(s, "Codec tag: %s", tag_buf); | |
| 78 | ✗ | return AVERROR_PATCHWELCOME; | |
| 79 | } | ||
| 80 | } | ||
| 81 | ✗ | av_log(s, AV_LOG_ERROR, "Unknown codec tag: %s\n", tag_buf); | |
| 82 | ✗ | return AVERROR_INVALIDDATA; | |
| 83 | } | ||
| 84 | |||
| 85 | ✗ | par->ch_layout.nb_channels = avio_rl32(pb); | |
| 86 | ✗ | if (par->ch_layout.nb_channels <= 0 || par->ch_layout.nb_channels > INT_MAX / 36) { | |
| 87 | ✗ | av_log(s, AV_LOG_ERROR, "Invalid number of channels: %d\n", par->ch_layout.nb_channels); | |
| 88 | ✗ | return AVERROR_INVALIDDATA; | |
| 89 | } | ||
| 90 | |||
| 91 | ✗ | avio_skip(pb, 4); // Bit depth | |
| 92 | ✗ | par->sample_rate = avio_rl32(pb); | |
| 93 | ✗ | if (!par->sample_rate) | |
| 94 | ✗ | return AVERROR_INVALIDDATA; | |
| 95 | |||
| 96 | ✗ | avio_skip(pb, 4); // Unknown | |
| 97 | |||
| 98 | ✗ | switch (par->codec_id) { | |
| 99 | ✗ | case AV_CODEC_ID_XMA2: | |
| 100 | ✗ | par->block_align = 2048; | |
| 101 | ✗ | if ((ret = ff_alloc_extradata(par, 34)) < 0) | |
| 102 | ✗ | return ret; | |
| 103 | ✗ | memset(par->extradata, 0, 34); | |
| 104 | ✗ | break; | |
| 105 | ✗ | case AV_CODEC_ID_ADPCM_PSX: | |
| 106 | ✗ | par->block_align = 16 * par->ch_layout.nb_channels; | |
| 107 | ✗ | break; | |
| 108 | ✗ | case AV_CODEC_ID_ADPCM_IMA_RAD: | |
| 109 | ✗ | par->block_align = 20 * par->ch_layout.nb_channels; | |
| 110 | ✗ | break; | |
| 111 | ✗ | case AV_CODEC_ID_ADPCM_IMA_WAV: | |
| 112 | ✗ | if (version == 2) | |
| 113 | ✗ | start = avio_rl32(pb); | |
| 114 | |||
| 115 | ✗ | par->bits_per_coded_sample = 4; | |
| 116 | ✗ | par->block_align = 36 * par->ch_layout.nb_channels; | |
| 117 | ✗ | break; | |
| 118 | ✗ | case AV_CODEC_ID_ADPCM_THP_LE: | |
| 119 | /* RSD3GADP is mono, so only alloc enough memory | ||
| 120 | to store the coeff table for a single channel. */ | ||
| 121 | |||
| 122 | ✗ | start = avio_rl32(pb); | |
| 123 | |||
| 124 | ✗ | if ((ret = ff_get_extradata(s, par, s->pb, 32)) < 0) | |
| 125 | ✗ | return ret; | |
| 126 | ✗ | break; | |
| 127 | ✗ | case AV_CODEC_ID_ADPCM_THP: | |
| 128 | ✗ | par->block_align = 8 * par->ch_layout.nb_channels; | |
| 129 | ✗ | avio_skip(s->pb, 0x1A4 - avio_tell(s->pb)); | |
| 130 | |||
| 131 | ✗ | if ((ret = ff_alloc_extradata(st->codecpar, 32 * par->ch_layout.nb_channels)) < 0) | |
| 132 | ✗ | return ret; | |
| 133 | |||
| 134 | ✗ | for (i = 0; i < par->ch_layout.nb_channels; i++) { | |
| 135 | ✗ | ret = ffio_read_size(s->pb, st->codecpar->extradata + 32 * i, 32); | |
| 136 | ✗ | if (ret < 0) | |
| 137 | ✗ | return ret; | |
| 138 | ✗ | avio_skip(s->pb, 8); | |
| 139 | } | ||
| 140 | ✗ | break; | |
| 141 | ✗ | case AV_CODEC_ID_PCM_S16LE: | |
| 142 | case AV_CODEC_ID_PCM_S16BE: | ||
| 143 | ✗ | if (version != 4) | |
| 144 | ✗ | start = avio_rl32(pb); | |
| 145 | |||
| 146 | ✗ | break; | |
| 147 | } | ||
| 148 | ✗ | if (start < 0) | |
| 149 | ✗ | return AVERROR_INVALIDDATA; | |
| 150 | |||
| 151 | ✗ | if (pb->seekable & AVIO_SEEKABLE_NORMAL) { | |
| 152 | ✗ | int64_t remaining = avio_size(pb); | |
| 153 | |||
| 154 | ✗ | if (remaining >= start && remaining - start <= INT_MAX) | |
| 155 | ✗ | switch (par->codec_id) { | |
| 156 | ✗ | case AV_CODEC_ID_ADPCM_PSX: | |
| 157 | case AV_CODEC_ID_ADPCM_IMA_RAD: | ||
| 158 | case AV_CODEC_ID_ADPCM_IMA_WAV: | ||
| 159 | case AV_CODEC_ID_ADPCM_THP_LE: | ||
| 160 | ✗ | st->duration = av_get_audio_frame_duration2(par, remaining - start); | |
| 161 | ✗ | break; | |
| 162 | ✗ | case AV_CODEC_ID_ADPCM_THP: | |
| 163 | ✗ | st->duration = (remaining - start) / (8 * par->ch_layout.nb_channels) * 14; | |
| 164 | ✗ | break; | |
| 165 | ✗ | case AV_CODEC_ID_PCM_S16LE: | |
| 166 | case AV_CODEC_ID_PCM_S16BE: | ||
| 167 | ✗ | st->duration = (remaining - start) / 2 / par->ch_layout.nb_channels; | |
| 168 | } | ||
| 169 | } | ||
| 170 | |||
| 171 | ✗ | avio_skip(pb, start - avio_tell(pb)); | |
| 172 | ✗ | if (par->codec_id == AV_CODEC_ID_XMA2) { | |
| 173 | ✗ | avio_skip(pb, avio_rb32(pb) + avio_rb32(pb)); | |
| 174 | ✗ | st->duration = avio_rb32(pb); | |
| 175 | } | ||
| 176 | |||
| 177 | ✗ | avpriv_set_pts_info(st, 64, 1, par->sample_rate); | |
| 178 | |||
| 179 | ✗ | return 0; | |
| 180 | } | ||
| 181 | |||
| 182 | ✗ | static int rsd_read_packet(AVFormatContext *s, AVPacket *pkt) | |
| 183 | { | ||
| 184 | ✗ | AVCodecParameters *par = s->streams[0]->codecpar; | |
| 185 | ✗ | int ret, size = 1024; | |
| 186 | int64_t pos; | ||
| 187 | |||
| 188 | ✗ | if (avio_feof(s->pb)) | |
| 189 | ✗ | return AVERROR_EOF; | |
| 190 | |||
| 191 | ✗ | pos = avio_tell(s->pb); | |
| 192 | ✗ | if (par->codec_id == AV_CODEC_ID_ADPCM_IMA_RAD || | |
| 193 | ✗ | par->codec_id == AV_CODEC_ID_ADPCM_PSX || | |
| 194 | ✗ | par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV || | |
| 195 | ✗ | par->codec_id == AV_CODEC_ID_XMA2) { | |
| 196 | ✗ | ret = av_get_packet(s->pb, pkt, par->block_align); | |
| 197 | ✗ | } else if (par->codec_tag == MKTAG('W','A','D','P') && | |
| 198 | ✗ | par->ch_layout.nb_channels > 1) { | |
| 199 | int i, ch; | ||
| 200 | |||
| 201 | ✗ | ret = av_new_packet(pkt, par->block_align); | |
| 202 | ✗ | if (ret < 0) | |
| 203 | ✗ | return ret; | |
| 204 | ✗ | for (i = 0; i < 4; i++) { | |
| 205 | ✗ | for (ch = 0; ch < par->ch_layout.nb_channels; ch++) { | |
| 206 | ✗ | pkt->data[ch * 8 + i * 2 + 0] = avio_r8(s->pb); | |
| 207 | ✗ | pkt->data[ch * 8 + i * 2 + 1] = avio_r8(s->pb); | |
| 208 | } | ||
| 209 | } | ||
| 210 | ✗ | ret = 0; | |
| 211 | } else { | ||
| 212 | ✗ | ret = av_get_packet(s->pb, pkt, size); | |
| 213 | } | ||
| 214 | |||
| 215 | ✗ | if (par->codec_id == AV_CODEC_ID_XMA2 && pkt->size >= 1) | |
| 216 | ✗ | pkt->duration = (pkt->data[0] >> 2) * 512; | |
| 217 | |||
| 218 | ✗ | pkt->pos = pos; | |
| 219 | ✗ | pkt->stream_index = 0; | |
| 220 | |||
| 221 | ✗ | return ret; | |
| 222 | } | ||
| 223 | |||
| 224 | const FFInputFormat ff_rsd_demuxer = { | ||
| 225 | .p.name = "rsd", | ||
| 226 | .p.long_name = NULL_IF_CONFIG_SMALL("GameCube RSD"), | ||
| 227 | .p.extensions = "rsd", | ||
| 228 | .p.codec_tag = (const AVCodecTag* const []){rsd_tags, 0}, | ||
| 229 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 230 | .read_probe = rsd_probe, | ||
| 231 | .read_header = rsd_read_header, | ||
| 232 | .read_packet = rsd_read_packet, | ||
| 233 | }; | ||
| 234 |