int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
int ch, channels, h, h2, bgcolor, fgcolor;
int16_t time_diff;
+ int rdft_bits, nb_freq;
+
+ for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
+ ;
+ nb_freq= 1<<(rdft_bits-1);
/* compute display index : center on currently output samples */
channels = s->audio_st->codec->channels;
nb_display_channels = channels;
if (!s->paused) {
+ int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
n = 2 * channels;
delay = audio_write_get_buf_size(s);
delay /= n;
delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
}
- delay -= s->width / 2;
- if (delay < s->width)
- delay = s->width;
+ delay -= data_used / 2;
+ if (delay < data_used)
+ delay = data_used;
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{
- int rdft_bits, nb_freq;
nb_display_channels= FFMIN(nb_display_channels, 2);
- for(rdft_bits=1; (1<<rdft_bits)<=s->height; rdft_bits++)
- ;
if(rdft_bits != s->rdft_bits){
ff_rdft_end(&s->rdft);
ff_rdft_init(&s->rdft, rdft_bits, RDFT);
s->rdft_bits= rdft_bits;
}
- nb_freq= 1<<(rdft_bits-1);
{
FFTSample data[2][2*nb_freq];
for(ch = 0;ch < nb_display_channels; ch++) {
ff_rdft_calc(&s->rdft, data[ch]);
}
//least efficient way to do this, we should of course directly access it but its more than fast enough
- for(y=0; y<nb_freq; y++){
+ for(y=0; y<s->height; y++){
double w= 1/sqrt(nb_freq);
int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
int b= sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + data[1][2*y+1]*data[1][2*y+1]));
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;
schedule_refresh(is, 40);
if (!display_disable)
- is->show_audio = 1;
+ is->show_audio = 2;
}
if (subtitle_index >= 0) {
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
{ "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
- { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto" },
+ { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
{ "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
projects / ffmpeg / blobdiff