system/pipewire
system/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire synced 2024-10-04 15:10:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

pipewire-v4l2: add enum_framesize ioctl

Browse source
This commit is contained in:
Wim Taymans 2021-10-09 20:54:07 +02:00
parent 3ee852b808
commit 12567ea5d8
1 changed files with 83 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

90
pipewire-v4l2/src/pipewire-v4l2.c
View file

@ -748,13 +748,6 @@ static int vidioc_querycap(struct file *file, struct v4l2_capability *arg)
return res;
}
static int vidioc_enum_framesizes(struct file *file, struct v4l2_frmsizeenum *arg)
{
int res = -ENOTTY;
pw_log_info("file:%p -> %d (%s)", file, res, spa_strerror(res));
return res;
}
struct format_info {
uint32_t fourcc;
uint32_t media_type;
@ -1169,6 +1162,89 @@ static const struct pw_stream_events stream_events = {
.process = on_stream_process,
};
static int vidioc_enum_framesizes(struct file *file, struct v4l2_frmsizeenum *arg)
{
uint32_t count = 0;
struct global *g = file->node;
struct param *p;
bool found = false;
pw_log_info("index: %u", arg->index);
pw_log_info("format: %.4s", (char*)&arg->pixel_format);
pw_thread_loop_lock(file->loop);
spa_list_for_each(p, &g->param_list, link) {
const struct format_info *fi;
uint32_t media_type, media_subtype, format;
struct spa_rectangle size;
if (p->id != SPA_PARAM_EnumFormat || p->param == NULL)
continue;
if (spa_format_parse(p->param, &media_type, &media_subtype) < 0)
continue;
if (media_type != SPA_MEDIA_TYPE_video)
continue;
if (media_subtype == SPA_MEDIA_SUBTYPE_raw) {
if (spa_pod_parse_object(p->param,
SPA_TYPE_OBJECT_Format, NULL,
SPA_FORMAT_VIDEO_format, SPA_POD_Id(&format)) < 0)
continue;
} else {
format = SPA_VIDEO_FORMAT_ENCODED;
}
fi = format_info_from_media_type(media_type, media_subtype, format);
if (fi == NULL)
continue;
if (fi->fourcc != arg->pixel_format)
continue;
if (spa_pod_parse_object(p->param,
SPA_TYPE_OBJECT_Format, NULL,
SPA_FORMAT_VIDEO_size, SPA_POD_Rectangle(&size)) < 0)
continue;
arg->type = V4L2_FRMSIZE_TYPE_DISCRETE;
arg->discrete.width = size.width;
arg->discrete.height = size.height;
pw_log_debug("count:%d %d %dx%d", count, fi->fourcc,
size.width, size.height);
if (count == arg->index) {
found = true;
break;
}
count++;
}
pw_thread_loop_unlock(file->loop);
if (!found)
return -EINVAL;
switch (arg->type) {
case V4L2_FRMSIZE_TYPE_DISCRETE:
pw_log_info("type: discrete");
pw_log_info("width: %u", arg->discrete.width);
pw_log_info("height: %u", arg->discrete.height);
break;
case V4L2_FRMSIZE_TYPE_CONTINUOUS:
case V4L2_FRMSIZE_TYPE_STEPWISE:
pw_log_info("type: stepwise");
pw_log_info("min-width: %u", arg->stepwise.min_width);
pw_log_info("max-width: %u", arg->stepwise.max_width);
pw_log_info("step-width: %u", arg->stepwise.step_width);
pw_log_info("min-height: %u", arg->stepwise.min_height);
pw_log_info("max-height: %u", arg->stepwise.max_height);
pw_log_info("step-height: %u", arg->stepwise.step_height);
break;
}
memset(arg->reserved, 0, sizeof(arg->reserved));
return 0;
}
static int vidioc_enum_fmt(struct file *file, struct v4l2_fmtdesc *arg)
{
uint32_t count = 0, last_fourcc = 0;