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Add avfilter_graph_create_filter().
Originally committed as revision 25862 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini
parent
9398024c04
commit
037be76e15
@ -12,6 +12,9 @@ libavutil: 2009-03-08
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API changes, most recent first:
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2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
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Add function avfilter_graph_create_filter() in avfiltergraph.h.
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2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
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Add function avfilter_get_video_buffer_ref_from_arrays() in
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avfilter.h.
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24
ffmpeg.c
24
ffmpeg.c
@ -356,22 +356,16 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
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graph = avfilter_graph_alloc();
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if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
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return ret;
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if ((ret = avfilter_open(&ist->output_video_filter, &ffsink, "out")) < 0)
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return ret;
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snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
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ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
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if ((ret = avfilter_init_filter(ist->input_video_filter, args, NULL)) < 0)
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ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
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"src", args, NULL, graph);
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if (ret < 0)
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return ret;
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if ((ret = avfilter_init_filter(ist->output_video_filter, NULL, &ffsink_ctx)) < 0)
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ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
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"out", NULL, &ffsink_ctx, graph);
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if (ret < 0)
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return ret;
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/* add input and output filters to the overall graph */
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avfilter_graph_add_filter(graph, ist->input_video_filter);
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avfilter_graph_add_filter(graph, ist->output_video_filter);
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last_filter = ist->input_video_filter;
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if (codec->width != icodec->width || codec->height != icodec->height) {
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@ -379,14 +373,12 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
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codec->width,
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codec->height,
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(int)av_get_int(sws_opts, "sws_flags", NULL));
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if ((ret = avfilter_open(&filter, avfilter_get_by_name("scale"), NULL)) < 0)
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return ret;
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if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
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if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
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NULL, args, NULL, graph)) < 0)
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return ret;
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if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
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return ret;
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last_filter = filter;
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avfilter_graph_add_filter(graph, last_filter);
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}
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snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
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14
ffplay.c
14
ffplay.c
@ -1798,12 +1798,12 @@ static int video_thread(void *arg)
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snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
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graph->scale_sws_opts = av_strdup(sws_flags_str);
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if (avfilter_open(&filt_src, &input_filter, "src") < 0) goto the_end;
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if (avfilter_open(&filt_out, &ffsink , "out") < 0) goto the_end;
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if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
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if(avfilter_init_filter(filt_out, NULL, &ffsink_ctx)) goto the_end;
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if (avfilter_graph_create_filter(&filt_src, &input_filter, "src",
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NULL, is, graph) < 0)
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goto the_end;
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if (avfilter_graph_create_filter(&filt_out, &ffsink, "out",
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NULL, &ffsink_ctx, graph) < 0)
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goto the_end;
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if(vfilters) {
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AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
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@ -1825,8 +1825,6 @@ static int video_thread(void *arg)
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} else {
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if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
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}
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avfilter_graph_add_filter(graph, filt_src);
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avfilter_graph_add_filter(graph, filt_out);
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if (avfilter_graph_config(graph, NULL) < 0)
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goto the_end;
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@ -25,7 +25,7 @@
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#include "libavutil/avutil.h"
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#define LIBAVFILTER_VERSION_MAJOR 1
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#define LIBAVFILTER_VERSION_MINOR 66
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#define LIBAVFILTER_VERSION_MINOR 67
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#define LIBAVFILTER_VERSION_MICRO 0
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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@ -53,6 +53,27 @@ int avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
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return 0;
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}
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int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
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const char *name, const char *args, void *opaque,
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AVFilterGraph *graph_ctx)
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{
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int ret;
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if ((ret = avfilter_open(filt_ctx, filt, name)) < 0)
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goto fail;
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if ((ret = avfilter_init_filter(*filt_ctx, args, opaque)) < 0)
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goto fail;
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if ((ret = avfilter_graph_add_filter(graph_ctx, *filt_ctx)) < 0)
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goto fail;
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return 0;
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fail:
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if (*filt_ctx)
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avfilter_free(*filt_ctx);
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*filt_ctx = NULL;
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return ret;
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}
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int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
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{
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AVFilterContext *filt;
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@ -113,7 +134,7 @@ AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name)
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static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
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{
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int i, j;
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int i, j, ret;
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int scaler_count = 0;
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char inst_name[30];
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@ -139,17 +160,12 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
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/* couldn't merge format lists. auto-insert scale filter */
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snprintf(inst_name, sizeof(inst_name), "auto-inserted scaler %d",
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scaler_count++);
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avfilter_open(&scale, avfilter_get_by_name("scale"), inst_name);
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snprintf(scale_args, sizeof(scale_args), "0:0:%s", graph->scale_sws_opts);
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if(!scale || scale->filter->init(scale, scale_args, NULL) ||
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avfilter_insert_filter(link, scale, 0, 0)) {
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avfilter_free(scale);
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return -1;
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}
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if (avfilter_graph_add_filter(graph, scale) < 0)
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return -1;
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if ((ret = avfilter_graph_create_filter(&scale, avfilter_get_by_name("scale"),
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inst_name, scale_args, NULL, graph)) < 0)
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return ret;
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if ((ret = avfilter_insert_filter(link, scale, 0, 0)) < 0)
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return ret;
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scale->filter->query_formats(scale);
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if (((link = scale-> inputs[0]) &&
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@ -52,6 +52,23 @@ AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
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*/
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int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
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/**
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* Create and add a filter instance into an existing graph.
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* The filter instance is created from the filter filt and inited
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* with the parameters args and opaque.
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*
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* In case of success put in *filt_ctx the pointer to the created
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* filter instance, otherwise set *filt_ctx to NULL.
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*
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* @param name the instance name to give to the created filter instance
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* @param graph_ctx the filter graph
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* @return a negative AVERROR error code in case of failure, a non
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* negative value otherwise
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*/
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int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
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const char *name, const char *args, void *opaque,
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AVFilterGraph *graph_ctx);
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/**
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* Check validity and configure all the links and formats in the graph.
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*
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