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libobs: Implement obs_service func to get max bitrates

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(This commit also modifies rtmp-services)

Implements obs_service_get_max_bitrate, which allows retrieving the
maximum audio/video bitrates directly rather than being forced to use
the apply method. Makes it a bit easier to get the bitrate values.
This commit is contained in:
jp9000 2020-11-11 09:40:24 -08:00
parent 5f6793676d
commit fb7747c56e
4 changed files with 59 additions and 0 deletions
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16
libobs/obs-service.c
View file

@ -436,3 +436,19 @@ void obs_service_get_max_res_fps(const obs_service_t *service, int *cx, int *cy,
service->info.get_max_res_fps(service->context.data, cx, cy,
fps);
}
void obs_service_get_max_bitrate(const obs_service_t *service,
int *video_bitrate, int *audio_bitrate)
{
if (video_bitrate)
*video_bitrate = 0;
if (audio_bitrate)
*audio_bitrate = 0;
if (!obs_service_valid(service, "obs_service_get_max_bitrate"))
return;
if (service->info.get_max_bitrate)
service->info.get_max_bitrate(service->context.data,
video_bitrate, audio_bitrate);
}

3
libobs/obs-service.h
View file

@ -75,6 +75,9 @@ struct obs_service_info {
const char *(*get_output_type)(void *data);
void (*get_max_res_fps)(void *data, int *cx, int *cy, int *fps);
void (*get_max_bitrate)(void *data, int *video_bitrate,
int *audio_bitrate);
};
EXPORT void obs_register_service_s(const struct obs_service_info *info,

3
libobs/obs.h
View file

@ -2234,6 +2234,9 @@ EXPORT const char *obs_service_get_id(const obs_service_t *service);
EXPORT void obs_service_get_max_res_fps(const obs_service_t *service, int *cx,
int *cy, int *fps);
EXPORT void obs_service_get_max_bitrate(const obs_service_t *service,
int *video_bitrate, int *audio_bitrate);
/* NOTE: This function is temporary and should be removed/replaced at a later
* date. */
EXPORT const char *obs_service_get_output_type(const obs_service_t *service);

37
plugins/rtmp-services/rtmp-common.c
View file

@ -690,6 +690,42 @@ static void rtmp_common_get_max_res_fps(void *data, int *cx, int *cy, int *fps)
*fps = service->max_fps;
}
static void rtmp_common_get_max_bitrate(void *data, int *video_bitrate,
int *audio_bitrate)
{
struct rtmp_common *service = data;
json_t *root = open_services_file();
json_t *item;
if (!root)
return;
json_t *json_service = find_service(root, service->service, NULL);
if (!json_service) {
goto fail;
}
json_t *recommended = json_object_get(json_service, "recommended");
if (!recommended) {
goto fail;
}
if (audio_bitrate) {
item = json_object_get(recommended, "max audio bitrate");
if (json_is_integer(item))
*audio_bitrate = (int)json_integer_value(item);
}
if (video_bitrate) {
item = json_object_get(recommended, "max video bitrate");
if (json_is_integer(item))
*video_bitrate = (int)json_integer_value(item);
}
fail:
json_decref(root);
}
struct obs_service_info rtmp_common_service = {
.id = "rtmp_common",
.get_name = rtmp_common_getname,
@ -702,4 +738,5 @@ struct obs_service_info rtmp_common_service = {
.apply_encoder_settings = rtmp_common_apply_settings,
.get_output_type = rtmp_common_get_output_type,
.get_max_res_fps = rtmp_common_get_max_res_fps,
.get_max_bitrate = rtmp_common_get_max_bitrate,
};