static void
add_video_format (ofGstDevice &webcam_device,
ofGstVideoFormat *video_format, GstStructure &format_structure)
{
int i;
gchar *resolution;
get_supported_framerates (*video_format, format_structure);
find_highest_framerate (*video_format);
// ofLog(OF_LOG_VERBOSE,"%s %d x %d num_framerates %d\n", video_format->mimetype, video_format->width,
// video_format->height, video_format->num_framerates);
for (i = 0; i < video_format->num_framerates; i++)
{
// ofLog(OF_LOG_VERBOSE,"%d/%d ", video_format->framerates[i].numerator,
// video_format->framerates[i].denominator);
}
resolution = g_strdup_printf ("%ix%i", video_format->width,
video_format->height);
i = GPOINTER_TO_INT(g_hash_table_lookup (
webcam_device.supported_resolutions,
resolution));
if (i) { /* Resolution already added ? */
float new_framerate = (float)video_format->highest_framerate.numerator /
video_format->highest_framerate.denominator;
float curr_framerate = (float)webcam_device.current_format->highest_framerate.numerator /
webcam_device.current_format->highest_framerate.denominator;
if (new_framerate > curr_framerate) {
// ofLog(OF_LOG_VERBOSE,"higher framerate replacing existing format\n");
webcam_device.current_format = video_format;
}
// else
// ofLog(OF_LOG_VERBOSE,"already added, skipping\n");
g_free (resolution);
return;
}
webcam_device.video_formats.push_back(video_format);
g_hash_table_insert (webcam_device.supported_resolutions, resolution,
GINT_TO_POINTER(webcam_device.num_video_formats + 1));
webcam_device.num_video_formats++;
}
static void add_video_format (ofGstDevice &webcam_device,
ofGstVideoFormat &video_format, GstStructure &format_structure, int desired_framerate)
{
ofLog(OF_LOG_NOTICE,"%s %d x %d framerates:",
video_format.mimetype.c_str(), video_format.width,
video_format.height);
get_supported_framerates (video_format, format_structure);
find_framerate (video_format, desired_framerate);
int i = find_resolution(webcam_device,video_format.width, video_format.height);
if (i!=-1) { // Resolution already added ?
float new_framerate = (float)video_format.choosen_framerate.numerator /
video_format.choosen_framerate.denominator;
float curr_framerate = (float)webcam_device.video_formats[i].choosen_framerate.numerator /
webcam_device.video_formats[i].choosen_framerate.denominator;
if (desired_framerate == -1){
if(new_framerate > curr_framerate) {
ofLog(OF_LOG_VERBOSE,"higher framerate replacing existing format\n");
webcam_device.video_formats[i] = video_format;
}else{
ofLog(OF_LOG_VERBOSE,"already added, skipping\n");
}
}else{
if(fabs(new_framerate - desired_framerate) < fabs(curr_framerate - desired_framerate) ){
ofLog(OF_LOG_VERBOSE,"more similar framerate replacing existing format\n");
webcam_device.video_formats[i] = video_format;
}else{
ofLog(OF_LOG_VERBOSE,"already added, skipping\n");
}
}
return;
}
webcam_device.video_formats.push_back(video_format);
}
