status_t
BMediaFormats::GetFormatFor(const media_format_description& description,
media_format* _format)
{
BAutolock locker(sLock);
status_t status = update_media_formats();
if (status < B_OK) {
ERROR("BMediaFormats: updating formats from server failed: %s!\n",
strerror(status));
return status;
}
TRACE("search for description family = %d, a = 0x%"
B_PRId32 "x, b = 0x%" B_PRId32 "x\n",
description.family, description.u.misc.file_format,
description.u.misc.codec);
// search for a matching format description
meta_format other(description);
const meta_format* metaFormat = sFormats.BinarySearch(other,
meta_format::CompareDescriptions);
TRACE("meta format == %p\n", metaFormat);
if (metaFormat == NULL) {
memset(_format, 0, sizeof(*_format)); // clear to widlcard
return B_MEDIA_BAD_FORMAT;
}
// found it!
*_format = metaFormat->format;
return B_OK;
}
