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cleaned up append videoflip

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This commit is contained in:
fduncanh
2021-08-13 15:20:41 -04:00
parent 8101493f30
commit 46b82d3e7e
1 changed files with 59 additions and 34 deletions
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93
renderers/video_renderer_gstreamer.c
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@@ -54,6 +54,63 @@ static gboolean check_plugins (void)
return ret;
}
static void append_videoflip (GString *launch, const videoflip_t *flip, const videoflip_t *rot) {
/* videoflip image transform */
switch (*flip) {
case INVERT:
switch (*rot) {
case LEFT:
g_string_append(launch, "videoflip method=clockwise ! ");
break;
case RIGHT:
g_string_append(launch, "videoflip method=counterclockwise ! ");
break;
default:
g_string_append(launch, "videoflip method=rotate-180 ! ");
break;
}
break;
case HFLIP:
switch (*rot) {
case LEFT:
g_string_append(launch, "videoflip method=upper-left-diagonal ! ");
break;
case RIGHT:
g_string_append(launch, "videoflip method=upper-right-diagonal ! ");
break;
default:
g_string_append(launch, "videoflip method=horizontal-flip ! ");
break;
}
break;
case VFLIP:
switch (*rot) {
case LEFT:
g_string_append(launch, "videoflip method=upper-right-diagonal ! ");
break;
case RIGHT:
g_string_append(launch, "videoflip method=upper-left-diagonal ! ");
break;
default:
g_string_append(launch, "videoflip method=vertical-flip ! ");
break;
}
break;
default:
switch (*rot) {
case LEFT:
g_string_append(launch, "videoflip method=counterclockwise ! ");
break;
case RIGHT:
g_string_append(launch, "videoflip method=clockwise ! ");
break;
default:
break;
}
break;
}
}
video_renderer_t *video_renderer_init(logger_t *logger, const char *server_name, videoflip_t videoflip[2]) {
video_renderer_t *renderer;
GError *error = NULL;
@@ -78,40 +135,8 @@ video_renderer_t *video_renderer_init(logger_t *logger, const char *server_name,
GString *launch = g_string_new("-e appsrc name=video_source stream-type=0 format=GST_FORMAT_TIME is-live=true !"
"queue ! decodebin ! videoconvert ! ");
if (videoflip[0] == INVERT && videoflip[1] == RIGHT) {
videoflip[0] = NONE;
videoflip[1] = LEFT;
} else if (videoflip[0] == INVERT && videoflip[1] == LEFT) {
videoflip[0] = NONE;
videoflip[1] = RIGHT;
}
/* image transform */
switch (videoflip[0]) {
case INVERT:
g_string_append(launch, "videoflip method=rotate-180 ! ");
break;
case HFLIP:
g_string_append(launch, "videoflip method=horizontal-flip ! ");
break;
case VFLIP:
g_string_append(launch, "videoflip method=vertical-flip ! ");
default:
break;
}
switch (videoflip[1]) {
case LEFT:
g_string_append(launch, "videoflip method=counterclockwise ! ");
break;
case RIGHT:
g_string_append(launch, "videoflip method=clockwise ! ");
break;
default:
break;
}
append_videoflip(launch, &videoflip[0], &videoflip[1]);
/* replace "autovideosink" with "fpsdisplaysink" (from gstreamer-plugins-bad) to display framerate */
g_string_append(launch, "autovideosink name=video_sink sync=false");
renderer->pipeline = gst_parse_launch(launch->str, &error);
g_assert (renderer->pipeline);