/** @This is called when there is no external reference to the pipe anymore.
*
* @param upipe description structure of the pipe
*/
static void upipe_fdec_no_ref(struct upipe *upipe)
{
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
upipe_fdec_clean_bin_input(upipe);
upipe_fdec_clean_bin_output(upipe);
urefcount_release(upipe_fdec_to_urefcount_real(upipe_fdec));
}
/** @internal @This allocates the options uref.
*
* @param upipe description structure of the pipe
* @param unused unused argument
* @return an error code
*/
static int upipe_fdec_provide(struct upipe *upipe, struct uref *unused)
{
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
if (upipe_fdec->uref_mgr != NULL && upipe_fdec->options == NULL)
upipe_fdec->options = uref_alloc_control(upipe_fdec->uref_mgr);
return UBASE_ERR_NONE;
}
/** @internal @This gets the value of an option.
*
* @param upipe description structure of the pipe
* @param key name of the option
* @param value of the option, or NULL to delete it
* @return an error code
*/
static int upipe_fdec_get_option(struct upipe *upipe,
const char *key, const char **value_p)
{
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
assert(key != NULL);
if (upipe_fdec->options == NULL)
return UBASE_ERR_INVALID;
return udict_get_string(upipe_fdec->options->udict, value_p,
UDICT_TYPE_STRING, key);
}
/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow_def flow definition packet
* @return an error code
*/
static int upipe_fdec_set_flow_def(struct upipe *upipe, struct uref *flow_def)
{
struct upipe_fdec_mgr *fdec_mgr = upipe_fdec_mgr_from_upipe_mgr(upipe->mgr);
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
if (flow_def == NULL)
return UBASE_ERR_INVALID;
if (upipe_fdec->last_inner != NULL) {
if (ubase_check(upipe_set_flow_def(upipe_fdec->last_inner, flow_def)))
return UBASE_ERR_NONE;
}
upipe_fdec_store_bin_input(upipe, NULL);
upipe_fdec_store_bin_output(upipe, NULL);
struct upipe *avcdec = upipe_void_alloc(fdec_mgr->avcdec_mgr,
uprobe_pfx_alloc(
uprobe_use(&upipe_fdec->last_inner_probe),
UPROBE_LOG_VERBOSE, "avcdec"));
if (unlikely(avcdec == NULL)) {
upipe_err_va(upipe, "couldn't allocate avcdec");
return UBASE_ERR_UNHANDLED;
}
if (unlikely(!ubase_check(upipe_set_flow_def(avcdec, flow_def)))) {
upipe_err_va(upipe, "couldn't set avcdec flow def");
upipe_release(avcdec);
return UBASE_ERR_UNHANDLED;
}
if (upipe_fdec->options != NULL && upipe_fdec->options->udict != NULL) {
const char *key = NULL;
enum udict_type type = UDICT_TYPE_END;
while (ubase_check(udict_iterate(upipe_fdec->options->udict, &key,
&type)) && type != UDICT_TYPE_END) {
const char *value;
if (key == NULL ||
!ubase_check(udict_get_string(upipe_fdec->options->udict,
&value, type, key)))
continue;
if (!ubase_check(upipe_set_option(avcdec, key, value)))
upipe_warn_va(upipe, "option %s=%s invalid", key, value);
}
}
upipe_fdec_store_bin_input(upipe, upipe_use(avcdec));
upipe_fdec_store_bin_output(upipe, avcdec);
return UBASE_ERR_NONE;
}
/** @internal @This sets the value of an option.
*
* @param upipe description structure of the pipe
* @param key name of the option
* @param value of the option, or NULL to delete it
* @return an error code
*/
static int upipe_fdec_set_option(struct upipe *upipe,
const char *key, const char *value)
{
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
assert(key != NULL);
if (upipe_fdec->options == NULL)
return UBASE_ERR_ALLOC;
if (upipe_fdec->last_inner != NULL) {
UBASE_RETURN(upipe_set_option(upipe_fdec->last_inner, key, value))
}
if (value != NULL)
return udict_set_string(upipe_fdec->options->udict, value,
UDICT_TYPE_STRING, key);
else
udict_delete(upipe_fdec->options->udict, UDICT_TYPE_STRING, key);
return UBASE_ERR_NONE;
}
/** @internal @This allocates a fdec pipe.
*
* @param mgr common management structure
* @param uprobe structure used to raise events
* @param signature signature of the pipe allocator
* @param args optional arguments
* @return pointer to upipe or NULL in case of allocation error
*/
static struct upipe *upipe_fdec_alloc(struct upipe_mgr *mgr,
struct uprobe *uprobe,
uint32_t signature, va_list args)
{
struct upipe *upipe = upipe_fdec_alloc_void(mgr, uprobe, signature, args);
if (unlikely(upipe == NULL))
return NULL;
struct upipe_fdec *upipe_fdec = upipe_fdec_from_upipe(upipe);
upipe_fdec_init_urefcount(upipe);
urefcount_init(upipe_fdec_to_urefcount_real(upipe_fdec),
upipe_fdec_free);
upipe_fdec_init_uref_mgr(upipe);
upipe_fdec_init_bin_input(upipe);
upipe_fdec_init_bin_output(upipe, upipe_fdec_to_urefcount_real(upipe_fdec));
upipe_fdec->options = NULL;
upipe_throw_ready(upipe);
upipe_fdec_demand_uref_mgr(upipe);
return upipe;
}
