2 * Copyright (c) 2011 Anton Khirnov <anton@khirnov.net>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #if HAVE_CDIO_PARANOIA_H
29 #include <cdio/cdda.h>
30 #include <cdio/paranoia.h>
31 #elif HAVE_CDIO_PARANOIA_PARANOIA_H
32 #include <cdio/paranoia/cdda.h>
33 #include <cdio/paranoia/paranoia.h>
36 #include "libavutil/log.h"
37 #include "libavutil/mem.h"
38 #include "libavutil/opt.h"
40 #include "libavformat/avformat.h"
41 #include "libavformat/internal.h"
43 typedef struct CDIOContext {
46 cdrom_paranoia_t *paranoia;
54 static av_cold int read_header(AVFormatContext *ctx)
56 CDIOContext *s = ctx->priv_data;
61 if (!(st = avformat_new_stream(ctx, NULL)))
62 return AVERROR(ENOMEM);
63 s->drive = cdio_cddap_identify(ctx->url, CDDA_MESSAGE_LOGIT, &err);
65 av_log(ctx, AV_LOG_ERROR, "Could not open drive %s.\n", ctx->url);
66 return AVERROR(EINVAL);
69 av_log(ctx, AV_LOG_VERBOSE, "%s\n", err);
72 if ((ret = cdio_cddap_open(s->drive)) < 0 || !s->drive->opened) {
73 av_log(ctx, AV_LOG_ERROR, "Could not open disk in drive %s.\n", ctx->url);
74 return AVERROR(EINVAL);
77 cdio_cddap_verbose_set(s->drive, CDDA_MESSAGE_LOGIT, CDDA_MESSAGE_LOGIT);
79 cdio_cddap_speed_set(s->drive, s->speed);
81 s->paranoia = cdio_paranoia_init(s->drive);
83 av_log(ctx, AV_LOG_ERROR, "Could not init paranoia.\n");
84 return AVERROR(EINVAL);
86 cdio_paranoia_modeset(s->paranoia, s->paranoia_mode);
88 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
89 if (s->drive->bigendianp)
90 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
92 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
93 st->codecpar->sample_rate = 44100;
94 st->codecpar->channels = 2;
95 if (s->drive->audio_last_sector != CDIO_INVALID_LSN &&
96 s->drive->audio_first_sector != CDIO_INVALID_LSN)
97 st->duration = s->drive->audio_last_sector - s->drive->audio_first_sector;
98 else if (s->drive->tracks)
99 st->duration = s->drive->disc_toc[s->drive->tracks].dwStartSector;
100 avpriv_set_pts_info(st, 64, CDIO_CD_FRAMESIZE_RAW, 2 * st->codecpar->channels * st->codecpar->sample_rate);
102 for (i = 0; i < s->drive->tracks; i++) {
104 snprintf(title, sizeof(title), "track %02d", s->drive->disc_toc[i].bTrack);
105 avpriv_new_chapter(ctx, i, st->time_base, s->drive->disc_toc[i].dwStartSector,
106 s->drive->disc_toc[i+1].dwStartSector, title);
109 s->last_sector = cdio_cddap_disc_lastsector(s->drive);
114 static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
116 CDIOContext *s = ctx->priv_data;
121 if (ctx->streams[0]->cur_dts > s->last_sector)
124 buf = cdio_paranoia_read(s->paranoia, NULL);
128 if (err = cdio_cddap_errors(s->drive)) {
129 av_log(ctx, AV_LOG_ERROR, "%s\n", err);
133 if (err = cdio_cddap_messages(s->drive)) {
134 av_log(ctx, AV_LOG_VERBOSE, "%s\n", err);
139 if ((ret = av_new_packet(pkt, CDIO_CD_FRAMESIZE_RAW)) < 0)
141 memcpy(pkt->data, buf, CDIO_CD_FRAMESIZE_RAW);
145 static av_cold int read_close(AVFormatContext *ctx)
147 CDIOContext *s = ctx->priv_data;
148 cdio_paranoia_free(s->paranoia);
149 cdio_cddap_close(s->drive);
153 static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp,
156 CDIOContext *s = ctx->priv_data;
157 AVStream *st = ctx->streams[0];
159 cdio_paranoia_seek(s->paranoia, timestamp, SEEK_SET);
160 st->cur_dts = timestamp;
164 #define OFFSET(x) offsetof(CDIOContext, x)
165 #define DEC AV_OPT_FLAG_DECODING_PARAM
166 static const AVOption options[] = {
167 { "speed", "set drive reading speed", OFFSET(speed), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, DEC },
168 { "paranoia_mode", "set error recovery mode", OFFSET(paranoia_mode), AV_OPT_TYPE_FLAGS, { .i64 = PARANOIA_MODE_DISABLE }, INT_MIN, INT_MAX, DEC, "paranoia_mode" },
169 { "disable", "apply no fixups", 0, AV_OPT_TYPE_CONST, { .i64 = PARANOIA_MODE_DISABLE }, 0, 0, DEC, "paranoia_mode" },
170 { "verify", "verify data integrity in overlap area", 0, AV_OPT_TYPE_CONST, { .i64 = PARANOIA_MODE_VERIFY }, 0, 0, DEC, "paranoia_mode" },
171 { "overlap", "perform overlapped reads", 0, AV_OPT_TYPE_CONST, { .i64 = PARANOIA_MODE_OVERLAP }, 0, 0, DEC, "paranoia_mode" },
172 { "neverskip", "do not skip failed reads", 0, AV_OPT_TYPE_CONST, { .i64 = PARANOIA_MODE_NEVERSKIP }, 0, 0, DEC, "paranoia_mode" },
173 { "full", "apply all recovery modes", 0, AV_OPT_TYPE_CONST, { .i64 = PARANOIA_MODE_FULL }, 0, 0, DEC, "paranoia_mode" },
177 static const AVClass libcdio_class = {
178 .class_name = "libcdio indev",
179 .item_name = av_default_item_name,
181 .version = LIBAVUTIL_VERSION_INT,
182 .category = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
185 AVInputFormat ff_libcdio_demuxer = {
187 .read_header = read_header,
188 .read_packet = read_packet,
189 .read_close = read_close,
190 .read_seek = read_seek,
191 .priv_data_size = sizeof(CDIOContext),
192 .flags = AVFMT_NOFILE,
193 .priv_class = &libcdio_class,