int framecatcher::getRGBImage(int frame, unsigned char*& rgb32BitData, int& width, int& height){
if(stream == NULL)
return 0;
int errCode = 0;
xine_play(stream,0,0);
xine_play(stream,0,frame); // 1 frame 2 mseconds
uint8_t *yuv = NULL, *y = NULL, *u = NULL, *v =NULL ;
int ratio = 0, format = 0;
if (!xine_get_current_frame(stream, &width, &height, &ratio, &format, NULL)){
errCode= xine_get_error(stream);
return errCode;
}
yuv = new uint8_t[((width+8) * (height+1) * 2)];
if (yuv == NULL){
std::cerr << "Out of Memory!";
return 0;
}
if (!xine_get_current_frame(stream, &width, &height, &ratio, &format, yuv)){
errCode= xine_get_error(stream);
if(yuv != NULL)
delete[] yuv;
return errCode;
}
/*
* convert to yv12 if necessary
*/
switch (format){
case XINE_IMGFMT_YUY2:
{
uint8_t *yuy2 = yuv;
yuv = new uint8_t[(width * height * 2)];
if (yuv == NULL){
std::cerr << "Not enough memory to make screenshot!" << std::endl;
return 0;
}
y = yuv;
u = yuv + width * height;
v = yuv + width * height * 5 / 4;
yuy2Toyv12 (y, u, v, yuy2, width, height);
delete [] yuy2;
}
break;
case XINE_IMGFMT_YV12:
y = yuv;
u = yuv + width * height;
v = yuv + width * height * 5 / 4;
break;
default:
{
std::cerr << "Format Not Supported" << std::endl;
if(yuv != NULL)
delete [] yuv;
return 0;
}
}
rgb32BitData = yv12ToRgb (y, u, v, width, height);
delete [] yuv;
return 1;
}
static Epsilon_Image *
epsilon_generate_thumb (Epsilon * e)
{
int ret = XINE_THUMB_SUCCESS;
Epsilon_Image *img = NULL;
unsigned char *buf = NULL;
int cnt, attempts = 0, length = -1, pos_perc, pos_time, new_perc, new_time,
req_perc = 500, req_time = 500;
static int old_length = -1;
char cfg[PATH_MAX];
epsilon_xine_param *param;
param = calloc (1, sizeof (epsilon_xine_param));
if (!(param->xine = xine_new ()))
{
return NULL;
}
snprintf (cfg, PATH_MAX, "%s%s", xine_get_homedir (), ".xine/config");
xine_config_load (param->xine, cfg);
xine_init (param->xine);
/* opening xine output ports */
if (!
(param->vo_port =
xine_open_video_driver (param->xine, "none", XINE_VISUAL_TYPE_NONE,
(void *) NULL)))
{
goto done;
}
param->ao_port = xine_open_audio_driver (param->xine, "none", NULL);
/* open a xine stream connected to these ports */
if (!
(param->stream =
xine_stream_new (param->xine, param->ao_port, param->vo_port)))
{
goto done;
}
if (!xine_open (param->stream, e->src))
{
ret = XINE_THUMB_FAIL;
goto done;
}
if (XINE_THUMBNAILER_DEBUG) printf("Starting xine thumbnail process..\n");
try_get_chance:
new_perc = -1;
new_time = req_time;
if (!xine_play (param->stream, 0, new_time))
{
new_time = -1;
new_perc = req_perc; /* 0..65535 */
if (!xine_play (param->stream, new_perc, 0))
{
ret = XINE_THUMB_FAIL;
if (XINE_THUMBNAILER_DEBUG) printf("Coudln't play video %s..\n", e->src);
goto close_stream;
}
}
/* get position */
for (cnt = 0; ((cnt < 50) &&
(!xine_get_pos_length
(param->stream, &pos_perc, &pos_time, &length)
|| (length == old_length))); cnt++)
usleep (1000);
if (length < 0)
{
if (XINE_THUMBNAILER_DEBUG) printf("Video is 0 length!..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
/* wait till position changes */
for (cnt = 0;
(cnt < 50) &&
(!xine_get_pos_length (param->stream, &new_perc, &new_time, &length) ||
((new_perc == pos_perc) && (new_time == pos_time))); cnt++)
{
usleep (1000);
}
/* get snapshot */
int w, h, ratio, format;
old_length = length;
/* ask what size a snapshot would be (if we can make one) */
if (!xine_get_current_frame (param->stream, &w, &h, &ratio, &format, NULL))
{
attempts++;
if (attempts < 10)
{
if (req_time < 10000)
req_time += 1000;
if (req_perc < 10000)
req_perc += 1000;
goto try_get_chance;
}
else
{
if (XINE_THUMBNAILER_DEBUG) printf("Exhausted attempts to thumbnail..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
}
else if ((w <= 0) || (h <= 0))
{
if (XINE_THUMBNAILER_DEBUG) printf("Width/Height of video invalid: %d:%d..\n", w,h);
ret = XINE_THUMB_FAIL;
goto close_stream;
}
else
{
/* know we know the size, get a buffer for the snapshot */
if (!(buf = malloc (w * h * 2)))
{
if (XINE_THUMBNAILER_DEBUG) printf("Couldn't allocate memory for thumbnail buffer..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
/* make a snapshot! */
if (!xine_get_current_frame
(param->stream, &w, &h, &ratio, &format, buf))
{
if (XINE_THUMBNAILER_DEBUG) printf("Couldn't retrieve current video frame..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
else if ((w <= 0) || (h <= 0))
{
if (XINE_THUMBNAILER_DEBUG) printf("Width/height of video invalid: %d:%d..\n",w,h);
ret = XINE_THUMB_FAIL;
goto close_stream;
}
if (format == XINE_IMGFMT_YUY2)
{
unsigned char *buf2 = malloc (w * h * 2);
unsigned char *tmp = buf;
i_yuy2_to_yv12 (buf, buf2, w, h);
buf = buf2;
free (tmp);
format = XINE_IMGFMT_YV12;
}
if (format == XINE_IMGFMT_YV12)
{
ret = yv12_to_rgb (e->src, w, h, &buf, &img);
if (ret != XINE_THUMB_SUCCESS)
{
if (img)
{
if (++attempts > 10)
goto close_stream;
free(img->data);
free(img);
img = NULL;
if (ret == XINE_THUMB_RETRY)
{
if (buf)
{
free (buf);
buf = NULL;
if ((req_perc += (attempts * 1000)) > 65535)
req_perc = 1000;
if ((req_time += (attempts * 2500)) > length)
req_time = 3000;
goto try_get_chance;
}
if (XINE_THUMBNAILER_DEBUG) printf("Exhausted attempts to thumbnail pos 2..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
}
else
{
if (XINE_THUMBNAILER_DEBUG) printf("Couldn't complete yv12_to_rgb..\n");
ret = XINE_THUMB_FAIL;
goto close_stream;
}
}
}
ret = XINE_THUMB_SUCCESS;
close_stream:
if (buf)
{
free (buf);
buf = NULL;
}
xine_close (param->stream);
done:
if (ret != XINE_THUMB_SUCCESS)
{
if (img)
{
free(img->data);
free(img);
img = NULL;
}
}
if (param->stream)
{
xine_dispose (param->stream);
param->stream = NULL;
}
if (param->ao_port)
{
xine_close_audio_driver (param->xine, param->ao_port);
param->ao_port = NULL;
}
if (param->vo_port)
{
xine_close_video_driver (param->xine, param->vo_port);
param->vo_port = NULL;
}
free (param);
return img;
}
return NULL;
}
