return 0;
}
-int avfilter_config_link(AVFilterLink *link)
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+ unsigned in, unsigned out)
{
- int *fmts[2], i, j;
- int (*config_link)(AVFilterLink *);
- int *(*query_formats)(AVFilterLink *link);
-
- if(!link)
- return 0;
+ AVFilterFormats *formats;
- /* find a format both filters support - TODO: auto-insert conversion filter */
- link->format = -1;
- if(!(query_formats = link_spad(link).query_formats))
- query_formats = avfilter_default_query_output_formats;
- fmts[0] = query_formats(link);
- fmts[1] = link_dpad(link).query_formats(link);
- for(i = 0; fmts[0][i] != -1; i ++)
- for(j = 0; fmts[1][j] != -1; j ++)
- if(fmts[0][i] == fmts[1][j]) {
- link->format = fmts[0][i];
- goto format_done;
- }
+ av_log(NULL, AV_LOG_INFO, "auto-inserting filter '%s'\n",
+ filt->filter->name);
-format_done:
- av_free(fmts[0]);
- av_free(fmts[1]);
- if(link->format == -1)
+ link->dst->inputs[link->dstpad] = NULL;
+ if(avfilter_link(filt, out, link->dst, link->dstpad)) {
+ /* failed to link output filter to new filter */
+ link->dst->inputs[link->dstpad] = link;
return -1;
+ }
- if(!(config_link = link_spad(link).config_props))
- config_link = avfilter_default_config_output_link;
- if(config_link(link))
- return -1;
+ /* re-hookup the link to the new destination filter we inserted */
+ link->dst = filt;
+ link->dstpad = in;
+ filt->inputs[in] = link;
+
+ /* if any information on supported colorspaces already exists on the
+ * link, we need to preserve that */
+ if((formats = link->out_formats))
+ avfilter_formats_changeref(&link->out_formats,
+ &filt->outputs[out]->out_formats);
+
+ return 0;
+}
+
+int avfilter_config_links(AVFilterContext *filter)
+{
+ int (*config_link)(AVFilterLink *);
+ unsigned i;
+
+ for(i = 0; i < filter->input_count; i ++) {
+ AVFilterLink *link;
+
+ if(!(link = filter->inputs[i])) continue;
- if(!(config_link = link_dpad(link).config_props))
- config_link = avfilter_default_config_input_link;
- if(config_link(link))
+ switch(link->init_state) {
+ case AVLINK_INIT:
+ continue;
+ case AVLINK_STARTINIT:
+ av_log(filter, AV_LOG_ERROR, "circular filter chain detected\n");
return -1;
+ case AVLINK_UNINIT:
+ link->init_state = AVLINK_STARTINIT;
+
+ if(avfilter_config_links(link->src))
+ return -1;
+
+ if(!(config_link = link_spad(link).config_props))
+ config_link = avfilter_default_config_output_link;
+ if(config_link(link))
+ return -1;
+
+ if((config_link = link_dpad(link).config_props))
+ if(config_link(link))
+ return -1;
+
+ link->init_state = AVLINK_INIT;
+ }
+ }
return 0;
}
else return -1;
}
+int avfilter_poll_frame(AVFilterLink *link)
+{
+ int i, min=INT_MAX;
+
+ if(link_spad(link).poll_frame)
+ return link_spad(link).poll_frame(link);
+ else
+ for (i=0; i<link->src->input_count; i++) {
+ if(!link->src->inputs[i])
+ return -1;
+ min = FFMIN(min, avfilter_poll_frame(link->src->inputs[i]));
+ }
+
+ return min;
+}
+
/* XXX: should we do the duplicating of the picture ref here, instead of
* forcing the source filter to do it? */
void avfilter_start_frame(AVFilterLink *link, AVFilterPicRef *picref)
/* prepare to copy the picture if it has insufficient permissions */
if((link_dpad(link).min_perms & picref->perms) != link_dpad(link).min_perms ||
link_dpad(link).rej_perms & picref->perms) {
+ /*
av_log(link->dst, AV_LOG_INFO,
"frame copy needed (have perms %x, need %x, reject %x)\n",
picref->perms,
link_dpad(link).min_perms, link_dpad(link).rej_perms);
+ */
link->cur_pic = avfilter_default_get_video_buffer(link, link_dpad(link).min_perms);
link->srcpic = picref;
{
void (*end_frame)(AVFilterLink *);
+ if(!(end_frame = link_dpad(link).end_frame))
+ end_frame = avfilter_default_end_frame;
+
+ end_frame(link);
+
/* unreference the source picture if we're feeding the destination filter
* a copied version dues to permission issues */
if(link->srcpic) {
link->srcpic = NULL;
}
- if(!(end_frame = link_dpad(link).end_frame))
- end_frame = avfilter_default_end_frame;
-
- end_frame(link);
}
void avfilter_draw_slice(AVFilterLink *link, int y, int h)
if(link->srcpic) {
avcodec_get_chroma_sub_sample(link->format, &hsub, &vsub);
+ link->cur_pic->pts = link->srcpic->pts;
src[0] = link->srcpic-> data[0] + y * link->srcpic-> linesize[0];
dst[0] = link->cur_pic->data[0] + y * link->cur_pic->linesize[0];
for(i = 1; i < 4; i ++) {
link_dpad(link).draw_slice(link, y, h);
}
-AVFilter *avfilter_get_by_name(char *name)
+AVFilter *avfilter_get_by_name(const char *name)
{
struct FilterList *filt;
return NULL;
}
-/* FIXME: insert in order, rather than insert at end + resort */
void avfilter_register(AVFilter *filter)
{
struct FilterList *newfilt = av_malloc(sizeof(struct FilterList));
void avfilter_init(void)
{
- avfilter_register(&vsrc_dummy);
- avfilter_register(&vsrc_ppm);
- avfilter_register(&vf_buffer);
- avfilter_register(&vf_crop);
- avfilter_register(&vf_fps);
- avfilter_register(&vf_graph);
- avfilter_register(&vf_graphdesc);
- avfilter_register(&vf_graphfile);
- avfilter_register(&vf_overlay);
- avfilter_register(&vf_passthrough);
- avfilter_register(&vf_rgb2bgr);
- avfilter_register(&vf_slicify);
- avfilter_register(&vf_split);
- avfilter_register(&vf_vflip);
+ avfilter_register(&avfilter_vf_crop);
+ avfilter_register(&avfilter_vf_fifo);
+ avfilter_register(&avfilter_vf_format);
+ avfilter_register(&avfilter_vf_fps);
+ avfilter_register(&avfilter_vf_graph);
+ avfilter_register(&avfilter_vf_graphdesc);
+ avfilter_register(&avfilter_vf_graphfile);
+ avfilter_register(&avfilter_vf_hflip);
+ avfilter_register(&avfilter_vf_negate);
+ avfilter_register(&avfilter_vf_noformat);
+ avfilter_register(&avfilter_vf_overlay);
+ avfilter_register(&avfilter_vf_rotate);
+ avfilter_register(&avfilter_vf_scale);
+ avfilter_register(&avfilter_vf_setpts);
+ avfilter_register(&avfilter_vf_slicify);
+ avfilter_register(&avfilter_vf_split);
+ avfilter_register(&avfilter_vf_transpose);
+ avfilter_register(&avfilter_vf_vflip);
+#ifdef CONFIG_AVFILTER_LAVF
+ avfilter_register(&avfilter_vsrc_movie);
+#endif //CONFIG_AVFILTER_LAVF
}
void avfilter_uninit(void)
static int pad_count(const AVFilterPad *pads)
{
- AVFilterPad *p = (AVFilterPad *) pads;
int count;
- for(count = 0; p->name; count ++) p ++;
+ for(count = 0; pads->name; count ++) pads ++;
return count;
}
return filter->filter->name;
}
-AVFilterContext *avfilter_open(AVFilter *filter, char *inst_name)
+AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name)
{
- AVFilterContext *ret = av_malloc(sizeof(AVFilterContext));
+ AVFilterContext *ret;
+
+ if (!filter)
+ return 0;
+
+ ret = av_malloc(sizeof(AVFilterContext));
ret->av_class = av_mallocz(sizeof(AVClass));
ret->av_class->item_name = filter_name;
return 0;
}
-int *avfilter_make_format_list(int len, ...)
-{
- int *ret, i;
- va_list vl;
-
- ret = av_malloc(sizeof(int) * (len + 1));
- va_start(vl, len);
- for(i = 0; i < len; i ++)
- ret[i] = va_arg(vl, int);
- va_end(vl);
- ret[len] = -1;
-
- return ret;
-}
-
projects / ffmpeg / blobdiff