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@ -53,43 +53,6 @@ static inline AVFilterLink *get_extern_input_link(AVFilterLink *link) |
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return lctx->graph->inputs[link->srcpad]; |
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} |
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/** request a frame from a filter providing input to the graph */ |
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static int link_in_request_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_extern_input_link(link); |
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if(!link2) |
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return -1; |
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return avfilter_request_frame(link2); |
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} |
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static int link_in_poll_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_extern_input_link(link); |
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if(!link2) |
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return -1; |
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return avfilter_poll_frame(link2); |
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} |
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static int link_in_config_props(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_extern_input_link(link); |
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int (*config_props)(AVFilterLink *); |
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int ret; |
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if(!link2) |
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return -1; |
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if(!(config_props = link2->src->output_pads[link2->srcpad].config_props)) |
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config_props = avfilter_default_config_output_link; |
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ret = config_props(link2); |
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link->w = link2->w; |
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link->h = link2->h; |
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return ret; |
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} |
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/**
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* Given the link between the dummy filter and an internal filter whose output |
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* is being exported outside the graph, this returns the externally visible |
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@ -101,54 +64,6 @@ static inline AVFilterLink *get_extern_output_link(AVFilterLink *link) |
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return lctx->graph->outputs[link->dstpad]; |
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} |
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static int link_out_config_props(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_extern_output_link(link); |
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if(!link2) |
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return 0; |
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link2->w = link->w; |
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link2->h = link->h; |
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return 0; |
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} |
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static void link_out_start_frame(AVFilterLink *link, AVFilterPicRef *picref) |
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{ |
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AVFilterLink *link2 = get_extern_output_link(link); |
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if(!link2) |
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avfilter_unref_pic(picref); |
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else |
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avfilter_start_frame(link2, picref); |
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} |
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static void link_out_end_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_extern_output_link(link); |
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if(link2) |
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avfilter_end_frame(link2); |
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} |
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static AVFilterPicRef *link_out_get_video_buffer(AVFilterLink *link, int perms) |
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{ |
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AVFilterLink *link2 = get_extern_output_link(link); |
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if(!link2) |
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return NULL; |
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else |
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return avfilter_get_video_buffer(link2, perms); |
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} |
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static void link_out_draw_slice(AVFilterLink *link, int y, int height) |
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{ |
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AVFilterLink *link2 = get_extern_output_link(link); |
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if(link2) |
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avfilter_draw_slice(link2, y, height); |
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} |
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/** dummy filter used to help export filters pads outside the graph */ |
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static AVFilter vf_graph_dummy = |
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@ -163,173 +78,6 @@ static AVFilter vf_graph_dummy = |
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.outputs = (AVFilterPad[]) {{ .name = NULL, }}, |
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}; |
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static AVFilterLink *get_intern_input_link(AVFilterLink *link) |
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{ |
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GraphContext *graph = link->dst->priv; |
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return graph->link_filter_in->outputs[link->dstpad]; |
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} |
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static void graph_in_start_frame(AVFilterLink *link, AVFilterPicRef *picref) |
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{ |
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AVFilterLink *link2 = get_intern_input_link(link); |
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if(link2) |
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avfilter_start_frame(link2, picref); |
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} |
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static void graph_in_end_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_intern_input_link(link); |
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if(link2) |
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avfilter_end_frame(link2); |
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} |
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static AVFilterPicRef *graph_in_get_video_buffer(AVFilterLink *link, int perms) |
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{ |
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AVFilterLink *link2 = get_intern_input_link(link); |
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if(link2) |
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return avfilter_get_video_buffer(link2, perms); |
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return NULL; |
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} |
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static void graph_in_draw_slice(AVFilterLink *link, int y, int height) |
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{ |
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AVFilterLink *link2 = get_intern_input_link(link); |
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if(link2) |
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avfilter_draw_slice(link2, y, height); |
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} |
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static int graph_in_config_props(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_intern_input_link(link); |
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int (*config_props)(AVFilterLink *); |
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int ret; |
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if(!link2) |
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return -1; |
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/* copy link properties over to the dummy internal link */ |
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link2->w = link->w; |
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link2->h = link->h; |
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link2->format = link->format; |
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if(!(config_props = link2->dst->input_pads[link2->dstpad].config_props)) |
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return 0; /* FIXME? */ |
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//config_props = avfilter_default_config_input_link;
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if(!(ret = config_props(link2))) |
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link2->init_state = AVLINK_INIT; |
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else |
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link2->init_state = AVLINK_STARTINIT; |
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return ret; |
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} |
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static AVFilterLink *get_intern_output_link(AVFilterLink *link) |
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{ |
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GraphContext *graph = link->src->priv; |
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return graph->link_filter_out->inputs[link->srcpad]; |
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} |
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static int graph_out_request_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_intern_output_link(link); |
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if(link2) |
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return avfilter_request_frame(link2); |
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return -1; |
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} |
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static int graph_out_poll_frame(AVFilterLink *link) |
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{ |
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AVFilterLink *link2 = get_intern_output_link(link); |
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if(!link2) |
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return -1; |
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return avfilter_poll_frame(link2); |
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} |
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static int graph_out_config_props(AVFilterLink *link) |
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{ |
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GraphContext *graph = link->src->priv; |
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AVFilterLink *link2 = graph->link_filter_out->inputs[link->srcpad]; |
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int ret; |
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if((ret = avfilter_config_links(graph->link_filter_out))) |
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return ret; |
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if(!link2) |
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return 0; |
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link->w = link2->w; |
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link->h = link2->h; |
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link->format = link2->format; |
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return 0; |
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} |
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static int add_graph_input(AVFilterContext *gctx, AVFilterContext *filt, unsigned idx, |
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char *name) |
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{ |
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GraphContext *graph = gctx->priv; |
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AVFilterPad graph_inpad = |
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{ |
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.name = name, |
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.type = CODEC_TYPE_VIDEO, |
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.start_frame = graph_in_start_frame, |
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.end_frame = graph_in_end_frame, |
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.get_video_buffer = graph_in_get_video_buffer, |
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.draw_slice = graph_in_draw_slice, |
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.config_props = graph_in_config_props, |
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/* XXX */ |
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}; |
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AVFilterPad dummy_outpad = |
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{ |
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.name = NULL, /* FIXME? */ |
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.type = CODEC_TYPE_VIDEO, |
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.request_frame = link_in_request_frame, |
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.poll_frame = link_in_poll_frame, |
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.config_props = link_in_config_props, |
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}; |
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avfilter_insert_inpad (gctx, gctx->input_count, &graph_inpad); |
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avfilter_insert_outpad(graph->link_filter_in, graph->link_filter_in->output_count, |
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&dummy_outpad); |
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return avfilter_link(graph->link_filter_in, |
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graph->link_filter_in->output_count-1, filt, idx); |
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} |
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static int add_graph_output(AVFilterContext *gctx, AVFilterContext *filt, unsigned idx, |
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char *name) |
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{ |
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GraphContext *graph = gctx->priv; |
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AVFilterPad graph_outpad = |
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{ |
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.name = name, |
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.type = CODEC_TYPE_VIDEO, |
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.request_frame = graph_out_request_frame, |
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.poll_frame = graph_out_poll_frame, |
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.config_props = graph_out_config_props, |
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}; |
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AVFilterPad dummy_inpad = |
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{ |
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.name = NULL, /* FIXME? */ |
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.type = CODEC_TYPE_VIDEO, |
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.start_frame = link_out_start_frame, |
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.end_frame = link_out_end_frame, |
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.draw_slice = link_out_draw_slice, |
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.get_video_buffer = link_out_get_video_buffer, |
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.config_props = link_out_config_props, |
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}; |
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avfilter_insert_outpad(gctx, gctx->output_count, &graph_outpad); |
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avfilter_insert_inpad (graph->link_filter_out, graph->link_filter_out->input_count, |
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&dummy_inpad); |
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return avfilter_link(filt, idx, graph->link_filter_out, |
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graph->link_filter_out->input_count-1); |
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} |
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static void uninit(AVFilterContext *ctx) |
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{ |
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GraphContext *graph = ctx->priv; |
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@ -539,42 +287,6 @@ fail: |
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return -1; |
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} |
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static int graph_load_from_desc(AVFilterContext *ctx, AVFilterGraphDesc *desc) |
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{ |
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AVFilterGraphDescExport *curpad; |
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char tmp[20]; |
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AVFilterContext *filt; |
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if (graph_load_from_desc2(ctx, desc) < 0) |
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goto fail; |
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/* export all input pads */ |
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for(curpad = desc->inputs; curpad; curpad = curpad->next) { |
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snprintf(tmp, 20, "%d", curpad->filter); |
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if(!(filt = avfilter_graph_get_filter(ctx, tmp))) { |
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av_log(ctx, AV_LOG_ERROR, "filter owning exported pad does not exist\n"); |
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goto fail; |
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} |
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add_graph_input(ctx, filt, curpad->pad, curpad->name); |
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} |
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/* export all output pads */ |
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for(curpad = desc->outputs; curpad; curpad = curpad->next) { |
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snprintf(tmp, 20, "%d", curpad->filter); |
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if(!(filt = avfilter_graph_get_filter(ctx, tmp))) { |
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av_log(ctx, AV_LOG_ERROR, "filter owning exported pad does not exist\n"); |
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goto fail; |
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} |
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add_graph_output(ctx, filt, curpad->pad, curpad->name); |
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} |
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return 0; |
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fail: |
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uninit(ctx); |
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return -1; |
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} |
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int graph_load_from_desc3(AVFilterContext *ctx, AVFilterGraphDesc *desc, AVFilterContext *in, int inpad, AVFilterContext *out, int outpad) |
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{ |
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AVFilterGraphDescExport *curpad; |
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@ -621,8 +333,6 @@ fail: |
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static int init(AVFilterContext *ctx, const char *args, void *opaque) |
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{ |
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GraphContext *gctx = ctx->priv; |
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AVFilterGraphDesc *desc; |
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int ret; |
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if(!(gctx->link_filter_in = avfilter_open(&vf_graph_dummy, NULL))) |
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return -1; |
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@ -633,15 +343,7 @@ static int init(AVFilterContext *ctx, const char *args, void *opaque) |
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if(avfilter_init_filter(gctx->link_filter_out, NULL, ctx)) |
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goto fail; |
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if(!args) |
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return 0; |
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if(!(desc = avfilter_graph_parse_chain(args))) |
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goto fail; |
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ret = graph_load_from_desc(ctx, desc); |
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avfilter_graph_free_desc(desc); |
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return ret; |
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return 0; |
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fail: |
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avfilter_destroy(gctx->link_filter_in); |
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