i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
if(s->show_audio==1){
- h= INT_MIN;
- for(i=0; i<1000; i+=channels){
- int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
- int a= s->sample_array[idx];
- int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
- int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
- int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
- int score= a-d;
- if(h<score && (b^c)<0){
- h= score;
- i_start= idx;
+ h= INT_MIN;
+ for(i=0; i<1000; i+=channels){
+ int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
+ int a= s->sample_array[idx];
+ int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
+ int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
+ int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
+ int score= a-d;
+ if(h<score && (b^c)<0){
+ h= score;
+ i_start= idx;
+ }
}
}
- }
s->last_i_start = i_start;
} else {
bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
if(s->show_audio==1){
- fill_rectangle(screen,
- s->xleft, s->ytop, s->width, s->height,
- bgcolor);
-
- fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
-
- /* total height for one channel */
- h = s->height / nb_display_channels;
- /* graph height / 2 */
- h2 = (h * 9) / 20;
- for(ch = 0;ch < nb_display_channels; ch++) {
- i = i_start + ch;
- y1 = s->ytop + ch * h + (h / 2); /* position of center line */
- for(x = 0; x < s->width; x++) {
- y = (s->sample_array[i] * h2) >> 15;
- if (y < 0) {
- y = -y;
- ys = y1 - y;
- } else {
- ys = y1;
+ fill_rectangle(screen,
+ s->xleft, s->ytop, s->width, s->height,
+ bgcolor);
+
+ fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
+
+ /* total height for one channel */
+ h = s->height / nb_display_channels;
+ /* graph height / 2 */
+ h2 = (h * 9) / 20;
+ for(ch = 0;ch < nb_display_channels; ch++) {
+ i = i_start + ch;
+ y1 = s->ytop + ch * h + (h / 2); /* position of center line */
+ for(x = 0; x < s->width; x++) {
+ y = (s->sample_array[i] * h2) >> 15;
+ if (y < 0) {
+ y = -y;
+ ys = y1 - y;
+ } else {
+ ys = y1;
+ }
+ fill_rectangle(screen,
+ s->xleft + x, ys, 1, y,
+ fgcolor);
+ i += channels;
+ if (i >= SAMPLE_ARRAY_SIZE)
+ i -= SAMPLE_ARRAY_SIZE;
}
- fill_rectangle(screen,
- s->xleft + x, ys, 1, y,
- fgcolor);
- i += channels;
- if (i >= SAMPLE_ARRAY_SIZE)
- i -= SAMPLE_ARRAY_SIZE;
}
- }
- fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
+ fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
- for(ch = 1;ch < nb_display_channels; ch++) {
- y = s->ytop + ch * h;
- fill_rectangle(screen,
- s->xleft, y, s->width, 1,
- fgcolor);
- }
- SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
+ for(ch = 1;ch < nb_display_channels; ch++) {
+ y = s->ytop + ch * h;
+ fill_rectangle(screen,
+ s->xleft, y, s->width, 1,
+ fgcolor);
+ }
+ SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
}else{
nb_display_channels= FFMIN(nb_display_channels, 2);
if(rdft_bits != s->rdft_bits){
static double compute_frame_delay(double frame_current_pts, VideoState *is)
{
- double actual_delay, delay, sync_threshold, ref_clock, diff;
+ double actual_delay, delay, sync_threshold, diff;
/* compute nominal delay */
delay = frame_current_pts - is->frame_last_pts;