void after_framedraw_frame_spinbutton_changed(LiVESSpinButton *spinbutton, lives_special_framedraw_rect_t *framedraw) {
// update the single frame/framedraw preview
// after the "frame number" spinbutton has changed
mainw->framedraw_frame=lives_spin_button_get_value_as_int(spinbutton);
if (lives_widget_is_visible(mainw->framedraw_preview)) {
if (mainw->framedraw_preview!=NULL) lives_widget_set_sensitive(mainw->framedraw_preview,FALSE);
lives_widget_context_update();
load_rfx_preview(framedraw->rfx);
} else framedraw_redraw(framedraw, TRUE, NULL);
}
static void start_preview(LiVESButton *button, lives_rfx_t *rfx) {
int i;
char *com;
lives_widget_set_sensitive(mainw->framedraw_preview,FALSE);
lives_widget_context_update();
if (mainw->did_rfx_preview) {
lives_kill_subprocesses(cfile->handle,TRUE);
if (cfile->start==0) {
cfile->start=1;
cfile->end=cfile->frames;
}
do_rfx_cleanup(rfx);
}
com=lives_strdup_printf("%s clear_pre_files \"%s\" 2>%s",prefs->backend_sync,cfile->handle,LIVES_DEVNULL);
lives_system(com,TRUE); // clear any .pre files from before
for (i=0; i<rfx->num_params; i++) {
rfx->params[i].changed=FALSE;
}
mainw->cancelled=CANCEL_NONE;
mainw->error=FALSE;
// within do_effect() we check and if
do_effect(rfx,TRUE); // actually start effect processing in the background
lives_widget_set_sensitive(mainw->framedraw_spinbutton,TRUE);
lives_widget_set_sensitive(mainw->framedraw_scale,TRUE);
if (mainw->framedraw_frame>cfile->start&&!(cfile->start==0&&mainw->framedraw_frame==1))
lives_spin_button_set_value(LIVES_SPIN_BUTTON(mainw->framedraw_spinbutton),cfile->start);
else {
load_rfx_preview(rfx);
}
mainw->did_rfx_preview=TRUE;
}
void clean_images_from_virtual(lives_clip_t *sfile, int oldframes) {
// remove images on disk where the frame_index points to a frame in
// the original clip
// only needed if frames were reordered when rendered and the process is
// then undone
// in future, a smarter function could trace the images back to their
// original source frames, and just rename them
// should be threadsafe
register int i;
char *iname=NULL,*com;
if (sfile==NULL||sfile->frame_index==NULL) return;
for (i=0; i<oldframes; i++) {
threaded_dialog_spin();
lives_widget_context_update();
threaded_dialog_spin();
if ((i<sfile->frames&&sfile->frame_index[i]!=-1)||i>=sfile->frames) {
iname=lives_strdup_printf("%s/%s/%08d.%s",prefs->tmpdir,sfile->handle,i,get_image_ext_for_type(sfile->img_type));
#ifndef IS_MINGW
com=lives_strdup_printf("/bin/rm -f \"%s\"",iname);
#else
com=lives_strdup_printf("rm.exe -f \"%s\"",iname);
#endif
lives_system(com,FALSE);
lives_free(com);
}
}
}
boolean virtual_to_images(int sfileno, int sframe, int eframe, boolean update_progress, LiVESPixbuf **pbr) {
// pull frames from a clip to images
// from sframe to eframe inclusive (first frame is 1)
// if update_progress, set mainw->msg with number of frames pulled
// should be threadsafe apart from progress update
// if pbr is non-null, it will be set to point to the pulled pixbuf (
// return FALSE on write error
register int i;
lives_clip_t *sfile=mainw->files[sfileno];
LiVESPixbuf *pixbuf=NULL;
LiVESError *error=NULL;
char *oname;
int retval;
int progress=1;
if (sframe<1) sframe=1;
for (i=sframe; i<=eframe; i++) {
if (i>sfile->frames) break;
if (sfile->frame_index[i-1]>=0) {
oname=NULL;
if (update_progress) {
threaded_dialog_spin();
lives_widget_context_update();
}
if (pbr!=NULL&&pixbuf!=NULL) lives_object_unref(pixbuf);
pixbuf=pull_lives_pixbuf_at_size(sfileno,i,get_image_ext_for_type(sfile->img_type),
q_gint64((i-1.)/sfile->fps,sfile->fps),sfile->hsize,sfile->vsize,LIVES_INTERP_BEST);
oname=lives_strdup_printf("%s/%s/%08d.%s",prefs->tmpdir,sfile->handle,i,get_image_ext_for_type(sfile->img_type));
do {
retval=0;
lives_pixbuf_save(pixbuf, oname, sfile->img_type, 100-prefs->ocp, TRUE, &error);
if (error!=NULL&&pbr==NULL) {
retval=do_write_failed_error_s_with_retry(oname,error->message,NULL);
lives_error_free(error);
error=NULL;
}
} while (retval==LIVES_RESPONSE_RETRY);
if (oname!=NULL) lives_free(oname);
if (pbr==NULL) {
if (pixbuf!=NULL) lives_object_unref(pixbuf);
pixbuf=NULL;
}
if (retval==LIVES_RESPONSE_CANCEL) return FALSE;
// another thread may have called check_if_non_virtual - TODO : use a mutex
if (sfile->frame_index==NULL) break;
sfile->frame_index[i-1]=-1;
if (update_progress) {
// sig_progress...
lives_snprintf(mainw->msg,256,"%d",progress++);
threaded_dialog_spin();
lives_widget_context_update();
}
if (mainw->cancelled!=CANCEL_NONE) {
if (!check_if_non_virtual(sfileno,1,sfile->frames)) save_frame_index(sfileno);
if (pbr!=NULL) *pbr=pixbuf;
return TRUE;
}
}
}
if (pbr!=NULL) *pbr=pixbuf;
if (!check_if_non_virtual(sfileno,1,sfile->frames)) if (!save_frame_index(sfileno)) return FALSE;
return TRUE;
}
void load_rfx_preview(lives_rfx_t *rfx) {
// load a preview of an rfx (rendered effect) in clip editor
LiVESPixbuf *pixbuf;
FILE *infofile=NULL;
int max_frame=0,tot_frames=0;
int vend=cfile->start;
int retval;
int alarm_handle;
int current_file=mainw->current_file;
boolean retb;
boolean timeout;
weed_timecode_t tc;
const char *img_ext;
if (mainw->framedraw_frame==0) mainw->framedraw_frame=1;
lives_set_cursor_style(LIVES_CURSOR_BUSY,NULL);
clear_mainw_msg();
mainw->write_failed=FALSE;
if (cfile->clip_type==CLIP_TYPE_FILE&&vend<=cfile->end) {
// pull some frames for 10 seconds
alarm_handle=lives_alarm_set(LIVES_DEFAULT_TIMEOUT);
do {
lives_widget_context_update();
if (is_virtual_frame(mainw->current_file,vend)) {
retb=virtual_to_images(mainw->current_file,vend,vend,FALSE,NULL);
if (!retb) return;
}
vend++;
timeout=lives_alarm_get(alarm_handle);
} while (vend<=cfile->end&&!timeout&&!mainw->cancelled);
lives_alarm_clear(alarm_handle);
}
if (mainw->cancelled) {
lives_set_cursor_style(LIVES_CURSOR_NORMAL,NULL);
return;
}
// get message from back end processor
while (!(infofile=fopen(cfile->info_file,"r"))&&!mainw->cancelled) {
// wait until we get at least 1 frame
lives_widget_context_update();
if (cfile->clip_type==CLIP_TYPE_FILE&&vend<=cfile->end) {
// if we have a virtual clip (frames inside a video file)
// pull some more frames to images to get us started
do {
retb=FALSE;
if (is_virtual_frame(mainw->current_file,vend)) {
retb=virtual_to_images(mainw->current_file,vend,vend,FALSE,NULL);
if (!retb) {
fclose(infofile);
return;
}
}
vend++;
} while (vend<=cfile->end&&!retb);
} else {
// otherwise wait
lives_usleep(prefs->sleep_time);
}
}
if (mainw->cancelled) {
if (infofile) fclose(infofile);
lives_set_cursor_style(LIVES_CURSOR_NORMAL,NULL);
return;
}
do {
retval=0;
mainw->read_failed=FALSE;
lives_fgets(mainw->msg,512,infofile);
if (mainw->read_failed) retval=do_read_failed_error_s_with_retry(cfile->info_file,NULL,NULL);
} while (retval==LIVES_RESPONSE_RETRY);
fclose(infofile);
if (strncmp(mainw->msg,"completed",9)) {
if (rfx->num_in_channels>0) {
max_frame=atoi(mainw->msg);
} else {
int numtok=get_token_count(mainw->msg,'|');
if (numtok>4) {
char **array=lives_strsplit(mainw->msg,"|",numtok);
max_frame=atoi(array[0]);
cfile->hsize=atoi(array[1]);
cfile->vsize=atoi(array[2]);
cfile->fps=cfile->pb_fps=strtod(array[3],NULL);
if (cfile->fps==0) cfile->fps=cfile->pb_fps=prefs->default_fps;
tot_frames=atoi(array[4]);
lives_strfreev(array);
}
}
} else {
max_frame=cfile->end;
}
lives_set_cursor_style(LIVES_CURSOR_NORMAL,NULL);
if (max_frame>0) {
if (rfx->num_in_channels==0) {
int maxlen=calc_spin_button_width(1.,(double)tot_frames,0);
lives_spin_button_set_range(LIVES_SPIN_BUTTON(mainw->framedraw_spinbutton),1,tot_frames);
lives_entry_set_width_chars(LIVES_ENTRY(mainw->framedraw_spinbutton),maxlen);
lives_widget_queue_draw(mainw->framedraw_spinbutton);
lives_widget_queue_draw(mainw->framedraw_scale);
}
if (mainw->framedraw_frame>max_frame) {
lives_spin_button_set_value(LIVES_SPIN_BUTTON(mainw->framedraw_spinbutton),max_frame);
mainw->current_file=current_file;
return;
}
}
if (rfx->num_in_channels>0) {
img_ext=LIVES_FILE_EXT_PRE;
} else {
img_ext=get_image_ext_for_type(cfile->img_type);
}
tc=((mainw->framedraw_frame-1.))/cfile->fps*U_SECL;
pixbuf=pull_lives_pixbuf_at_size(mainw->current_file,mainw->framedraw_frame,(char *)img_ext,
tc,(double)cfile->hsize,
(double)cfile->vsize,LIVES_INTERP_BEST);
load_framedraw_image(pixbuf);
redraw_framedraw_image();
mainw->current_file=current_file;
}
static boolean lives_yuv_stream_start_read(lives_clip_t *sfile) {
double ofps=sfile->fps;
lives_yuv4m_t *yuv4mpeg=(lives_yuv4m_t *)sfile->ext_src;
pthread_t y4thread;
char *filename=yuv4mpeg->filename,*tmp;
int alarm_handle=0;
int ohsize=sfile->hsize;
int ovsize=sfile->vsize;
y4data thread_data;
register int i;
if (filename==NULL) return FALSE;
if (yuv4mpeg->fd==-1) {
// create a thread to open the fifo
thread_data.filename=filename;
pthread_create(&y4thread,NULL,y4open_thread,(void *)&thread_data);
alarm_handle=lives_alarm_set(YUV4_O_TIME);
d_print("");
d_print(_("Waiting for yuv4mpeg frames..."));
while (!lives_alarm_get(alarm_handle)&&!pthread_kill(y4thread,0)) {
// wait for thread to complete or timeout
lives_usleep(prefs->sleep_time);
lives_widget_context_update();
}
if (lives_alarm_get(alarm_handle)) {
// timeout - kill thread and wait for it to terminate
pthread_cancel(y4thread);
pthread_join(y4thread,NULL);
lives_alarm_clear(alarm_handle);
d_print_failed();
d_print(_("Unable to open the incoming video stream\n"));
yuv4mpeg->fd=thread_data.fd;
if (yuv4mpeg->fd>=0) {
close(yuv4mpeg->fd);
yuv4mpeg->fd=-1;
}
return FALSE;
}
pthread_join(y4thread,NULL);
lives_alarm_clear(alarm_handle);
yuv4mpeg->fd=thread_data.fd;
if (yuv4mpeg->fd<0) {
return FALSE;
}
}
// create a thread to open the stream header
thread_data.yuv4mpeg=yuv4mpeg;
pthread_create(&y4thread,NULL,y4header_thread,&thread_data);
alarm_handle=lives_alarm_set(YUV4_H_TIME);
while (!lives_alarm_get(alarm_handle)&&!pthread_kill(y4thread,0)) {
// wait for thread to complete or timeout
lives_usleep(prefs->sleep_time);
lives_widget_context_update();
}
if (lives_alarm_get(alarm_handle)) {
// timeout - kill thread and wait for it to terminate
pthread_cancel(y4thread);
pthread_join(y4thread,NULL);
lives_alarm_clear(alarm_handle);
d_print(_("Unable to read the stream header\n"));
return FALSE;
}
pthread_join(y4thread,NULL);
lives_alarm_clear(alarm_handle);
i=thread_data.i;
if (i != Y4M_OK) {
char *tmp;
d_print((tmp=lives_strdup_printf("yuv4mpeg: %s\n", y4m_strerr(i))));
lives_free(tmp);
return FALSE;
}
d_print(_("got header\n"));
sfile->hsize = yuv4mpeg->hsize = y4m_si_get_width(&(yuv4mpeg->streaminfo));
sfile->vsize = yuv4mpeg->vsize = y4m_si_get_height(&(yuv4mpeg->streaminfo));
sfile->fps=cfile->pb_fps=lives_strtod(lives_strdup_printf("%.8f",Y4M_RATIO_DBL
(y4m_si_get_framerate(&(yuv4mpeg->streaminfo)))),NULL);
if (!(sfile->hsize*sfile->vsize)) {
do_error_dialog(lives_strdup_printf(_("Video dimensions: %d x %d are invalid. Stream cannot be opened"),
sfile->hsize,sfile->vsize));
return FALSE;
}
if (sfile->hsize!=ohsize||sfile->vsize!=ovsize||sfile->fps!=ofps) {
set_main_title(sfile->file_name,0);
}
d_print((tmp=lives_strdup_printf(_("Reset clip values for %s: size=%dx%d fps=%.3f\n"),yuv4mpeg->name,
cfile->hsize,yuv4mpeg->vsize,cfile->bpp,cfile->fps)));
lives_free(tmp);
yuv4mpeg->ready=TRUE;
return TRUE;
}
static void start_preview(LiVESButton *button, lives_rfx_t *rfx) {
int i;
char *com;
lives_widget_set_sensitive(mainw->framedraw_preview,FALSE);
lives_widget_context_update();
if (mainw->did_rfx_preview) {
#ifndef IS_MINGW
com=lives_strdup_printf("%s stopsubsub \"%s\" 2>/dev/null",prefs->backend_sync,cfile->handle);
lives_system(com,TRUE); // try to stop any in-progress preview
#else
// get pid from backend
FILE *rfile;
ssize_t rlen;
char val[16];
int pid;
com=lives_strdup_printf("%s get_pid_for_handle \"%s\"",prefs->backend_sync,cfile->handle);
rfile=popen(com,"r");
rlen=fread(val,1,16,rfile);
pclose(rfile);
memset(val+rlen,0,1);
pid=atoi(val);
lives_win32_kill_subprocesses(pid,TRUE);
#endif
lives_free(com);
if (cfile->start==0) {
cfile->start=1;
cfile->end=cfile->frames;
}
do_rfx_cleanup(rfx);
}
#ifndef IS_MINGW
com=lives_strdup_printf("%s clear_pre_files \"%s\" 2>/dev/null",prefs->backend_sync,cfile->handle);
#else
com=lives_strdup_printf("%s clear_pre_files \"%s\" 2>NUL",prefs->backend_sync,cfile->handle);
#endif
lives_system(com,TRUE); // clear any .pre files from before
for (i=0; i<rfx->num_params; i++) {
rfx->params[i].changed=FALSE;
}
mainw->cancelled=CANCEL_NONE;
mainw->error=FALSE;
// within do_effect() we check and if
do_effect(rfx,TRUE); // actually start effect processing in the background
lives_widget_set_sensitive(mainw->framedraw_spinbutton,TRUE);
lives_widget_set_sensitive(mainw->framedraw_scale,TRUE);
if (mainw->framedraw_frame>cfile->start&&!(cfile->start==0&&mainw->framedraw_frame==1))
lives_spin_button_set_value(LIVES_SPIN_BUTTON(mainw->framedraw_spinbutton),cfile->start);
else {
load_rfx_preview(rfx);
}
mainw->did_rfx_preview=TRUE;
}