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🎥 Command line media player
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C
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#include <stdbool.h>#include <stdio.h>#include <stdlib.h>
#include <cdio/cdio.h>
#ifndef TESTING_IS_FINISHED// Suppress Wundef warning#define TESTING_IS_FINISHED 0#endif#include <cdio/paranoia/cdda.h>#include <cdio/paranoia/paranoia.h>
#include "common/msg.h"#include "config.h"#include "mpv_talloc.h"
#include "stream.h"#include "options/m_option.h"#include "options/m_config.h"#include "options/options.h"#include "options/path.h"
#if !HAVE_GPL#error GPL only#endif
typedef struct cdda_params { cdrom_drive_t *cd; cdrom_paranoia_t *cdp; int sector; int start_sector; int end_sector; uint8_t *data; size_t data_pos;
// options char *cdda_device; int speed; int paranoia_mode; int sector_size; int search_overlap; int toc_offset; bool skip; char *device; int span[2]; bool cdtext;} cdda_priv;
#define OPT_BASE_STRUCT struct cdda_paramsconst struct m_sub_options stream_cdda_conf = { .opts = (const m_option_t[]) { {"device", OPT_STRING(cdda_device), .flags = M_OPT_FILE}, {"speed", OPT_INT(speed), M_RANGE(1, 100)}, {"paranoia", OPT_INT(paranoia_mode), M_RANGE(0, 2)}, {"sector-size", OPT_INT(sector_size), M_RANGE(1, 100)}, {"overlap", OPT_INT(search_overlap), M_RANGE(0, 75)}, {"toc-offset", OPT_INT(toc_offset)}, {"skip", OPT_BOOL(skip)}, {"span-a", OPT_INT(span[0])}, {"span-b", OPT_INT(span[1])}, {"cdtext", OPT_BOOL(cdtext)}, {0} }, .size = sizeof(struct cdda_params), .defaults = &(const struct cdda_params){ .search_overlap = -1, .skip = true, },};
static const char *const cdtext_name[] = { [CDTEXT_FIELD_ARRANGER] = "Arranger", [CDTEXT_FIELD_COMPOSER] = "Composer", [CDTEXT_FIELD_MESSAGE] = "Message", [CDTEXT_FIELD_ISRC] = "ISRC", [CDTEXT_FIELD_PERFORMER] = "Performer", [CDTEXT_FIELD_SONGWRITER] = "Songwriter", [CDTEXT_FIELD_TITLE] = "Title", [CDTEXT_FIELD_UPC_EAN] = "UPC_EAN",};
static void print_cdtext(stream_t *s, int track){ cdda_priv* p = (cdda_priv*)s->priv; if (!p->cdtext) return; cdtext_t *text = cdio_get_cdtext(p->cd->p_cdio); int header = 0; if (text) { for (int i = 0; i < sizeof(cdtext_name) / sizeof(cdtext_name[0]); i++) { const char *name = cdtext_name[i]; const char *value = cdtext_get_const(text, i, track); if (name && value) { if (!header) MP_INFO(s, "CD-Text (%s):\n", track ? "track" : "CD"); header = 1; MP_INFO(s, " %s: '%s'\n", name, value); } } }}
static void print_track_info(stream_t *s, int track){ MP_INFO(s, "Switched to track %d\n", track); print_cdtext(s, track);}
static void cdparanoia_callback(long int inpos, paranoia_cb_mode_t function){}
static int fill_buffer(stream_t *s, void *buffer, int max_len){ cdda_priv *p = (cdda_priv *)s->priv;
if (!p->data || p->data_pos >= CDIO_CD_FRAMESIZE_RAW) { if ((p->sector < p->start_sector) || (p->sector > p->end_sector)) return 0;
p->data_pos = 0; p->data = (uint8_t *)paranoia_read(p->cdp, cdparanoia_callback); if (!p->data) return 0;
p->sector++; }
size_t copy = MPMIN(CDIO_CD_FRAMESIZE_RAW - p->data_pos, max_len); memcpy(buffer, p->data + p->data_pos, copy); p->data_pos += copy; return copy;}
static int seek(stream_t *s, int64_t newpos){ cdda_priv *p = (cdda_priv *)s->priv; int sec; int current_track = 0, seeked_track = 0; int seek_to_track = 0; int i;
newpos += p->start_sector * CDIO_CD_FRAMESIZE_RAW;
sec = newpos / CDIO_CD_FRAMESIZE_RAW; if (newpos < 0 || sec > p->end_sector) { p->sector = p->end_sector + 1; return 0; }
for (i = 0; i < p->cd->tracks; i++) { if (p->sector >= p->cd->disc_toc[i].dwStartSector && p->sector < p->cd->disc_toc[i + 1].dwStartSector) current_track = i; if (sec >= p->cd->disc_toc[i].dwStartSector && sec < p->cd->disc_toc[i + 1].dwStartSector) { seeked_track = i; seek_to_track = sec == p->cd->disc_toc[i].dwStartSector; } } if (current_track != seeked_track && !seek_to_track) print_track_info(s, seeked_track + 1);
p->sector = sec;
paranoia_seek(p->cdp, sec, SEEK_SET); return 1;}
static void close_cdda(stream_t *s){ cdda_priv *p = (cdda_priv *)s->priv; paranoia_free(p->cdp); cdda_close(p->cd);}
static int get_track_by_sector(cdda_priv *p, unsigned int sector){ int i; for (i = p->cd->tracks; i >= 0; --i) if (p->cd->disc_toc[i].dwStartSector <= sector) break; return i;}
static int control(stream_t *stream, int cmd, void *arg){ cdda_priv *p = stream->priv; switch (cmd) { case STREAM_CTRL_GET_NUM_CHAPTERS: { int start_track = get_track_by_sector(p, p->start_sector); int end_track = get_track_by_sector(p, p->end_sector); if (start_track == -1 || end_track == -1) return STREAM_ERROR; *(unsigned int *)arg = end_track + 1 - start_track; return STREAM_OK; } case STREAM_CTRL_GET_CHAPTER_TIME: { int track = *(double *)arg; int start_track = get_track_by_sector(p, p->start_sector); int end_track = get_track_by_sector(p, p->end_sector); track += start_track; if (track > end_track) return STREAM_ERROR; int64_t sector = p->cd->disc_toc[track].dwStartSector; int64_t pos = sector * CDIO_CD_FRAMESIZE_RAW; // Assume standard audio CD: 44.1khz, 2 channels, s16 samples *(double *)arg = pos / (44100.0 * 2 * 2); return STREAM_OK; } } return STREAM_UNSUPPORTED;}
static int64_t get_size(stream_t *st){ cdda_priv *p = st->priv; return (p->end_sector + 1 - p->start_sector) * CDIO_CD_FRAMESIZE_RAW;}
static int open_cdda(stream_t *st){ st->priv = mp_get_config_group(st, st->global, &stream_cdda_conf); cdda_priv *priv = st->priv; cdda_priv *p = priv; int mode = p->paranoia_mode; int offset = p->toc_offset; cdrom_drive_t *cdd = NULL; int last_track;
if (st->path[0]) { p->device = talloc_strdup(priv, st->path); } else if (p->cdda_device && p->cdda_device[0]) { p->device = mp_get_user_path(priv, st->global, p->cdda_device); } else { p->device = talloc_strdup(priv, DEFAULT_CDROM_DEVICE); }
#if defined(__NetBSD__) cdd = cdda_identify_scsi(p->device, p->device, 0, NULL);#else cdd = cdda_identify(p->device, 0, NULL);#endif
if (!cdd) { MP_ERR(st, "Can't open CDDA device.\n"); return STREAM_ERROR; }
cdda_verbose_set(cdd, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT);
if (p->sector_size) cdd->nsectors = p->sector_size;
if (cdda_open(cdd) != 0) { MP_ERR(st, "Can't open disc.\n"); cdda_close(cdd); return STREAM_ERROR; }
priv->cd = cdd;
offset -= cdda_track_firstsector(cdd, 1); if (offset) { for (int n = 0; n < cdd->tracks + 1; n++) cdd->disc_toc[n].dwStartSector += offset; }
if (p->speed > 0) cdda_speed_set(cdd, p->speed);
last_track = cdda_tracks(cdd); if (p->span[0] > last_track) p->span[0] = last_track; if (p->span[1] < p->span[0]) p->span[1] = p->span[0]; if (p->span[1] > last_track) p->span[1] = last_track; if (p->span[0]) priv->start_sector = cdda_track_firstsector(cdd, p->span[0]); else priv->start_sector = cdda_disc_firstsector(cdd);
if (p->span[1]) priv->end_sector = cdda_track_lastsector(cdd, p->span[1]); else priv->end_sector = cdda_disc_lastsector(cdd);
priv->cdp = paranoia_init(cdd); if (priv->cdp == NULL) { cdda_close(cdd); return STREAM_ERROR; }
if (mode == 0) mode = PARANOIA_MODE_DISABLE; else if (mode == 1) mode = PARANOIA_MODE_OVERLAP; else mode = PARANOIA_MODE_FULL;
if (p->skip) mode &= ~PARANOIA_MODE_NEVERSKIP; else mode |= PARANOIA_MODE_NEVERSKIP;
if (p->search_overlap > 0) mode |= PARANOIA_MODE_OVERLAP; else if (p->search_overlap == 0) mode &= ~PARANOIA_MODE_OVERLAP;
paranoia_modeset(priv->cdp, mode);
if (p->search_overlap > 0) paranoia_overlapset(priv->cdp, p->search_overlap);
paranoia_seek(priv->cdp, priv->start_sector, SEEK_SET); priv->sector = priv->start_sector;
st->priv = priv;
st->fill_buffer = fill_buffer; st->seek = seek; st->seekable = true; st->control = control; st->get_size = get_size; st->close = close_cdda;
st->streaming = true;
st->demuxer = "+disc";
print_cdtext(st, 0);
return STREAM_OK;}
const stream_info_t stream_info_cdda = { .name = "cdda", .open = open_cdda, .protocols = (const char*const[]){"cdda", NULL }, .stream_origin = STREAM_ORIGIN_UNSAFE,};