struct media_device *media_open_debug(
const char *name, void (*debug_handler)(void *, ...),
void *debug_priv)
{
struct media_device *media;
int ret;
media = calloc(1, sizeof(*media));
if (media == NULL)
return NULL;
media_debug_set_handler(media, debug_handler, debug_priv);
media_dbg(media, "Opening media device %s\n", name);
media->fd = open(name, O_RDWR);
if (media->fd < 0) {
media_close(media);
media_dbg(media, "%s: Can't open media device %s\n",
__func__, name);
return NULL;
}
ret = ioctl(media->fd, MEDIA_IOC_DEVICE_INFO, &media->info);
if (ret < 0) {
media_dbg(media, "%s: Unable to retrieve media device "
"information for device %s (%s)\n", __func__,
name, strerror(errno));
media_close(media);
return NULL;
}
media_dbg(media, "Enumerating entities\n");
ret = media_enum_entities(media);
if (ret < 0) {
media_dbg(media,
"%s: Unable to enumerate entities for device %s (%s)\n",
__func__, name, strerror(-ret));
media_close(media);
return NULL;
}
media_dbg(media, "Found %u entities\n", media->entities_count);
media_dbg(media, "Enumerating pads and links\n");
ret = media_enum_links(media);
if (ret < 0) {
media_dbg(media,
"%s: Unable to enumerate pads and linksfor device %s\n",
__func__, name);
media_close(media);
return NULL;
}
return media;
}
/*
* media_open -
*/
struct media_device *media_open(const char *name, int verbose)
{
struct media_device *media;
int ret;
media = malloc(sizeof(*media));
if (media == NULL) {
printf("%s: unable to allocate memory\n", __func__);
return NULL;
}
memset(media, 0, sizeof(*media));
if (verbose)
printf("Opening media device %s\n", name);
media->fd = open(name, O_RDWR);
if (media->fd < 0) {
media_close(media);
printf("%s: Can't open media device %s\n", __func__, name);
return NULL;
}
if (verbose)
printf("Enumerating entities\n");
ret = media_enum_entities(media);
if (ret < 0) {
printf("%s: Unable to enumerate entities for device %s (%s)\n",
__func__, name, strerror(-ret));
media_close(media);
return NULL;
}
if (verbose) {
printf("Found %u entities\n", media->entities_count);
printf("Enumerating pads and links\n");
}
ret = media_enum_links(media);
if (ret < 0) {
printf("%s: Unable to enumerate pads and linksfor device %s\n",
__func__, name);
media_close(media);
return NULL;
}
return media;
}
