* audio and video splitter
*/
+#include <stdio.h>
+
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
#include "avfilter.h"
#include "audio.h"
#include "internal.h"
#include "video.h"
-static int split_init(AVFilterContext *ctx, const char *args, void *opaque)
+static int split_init(AVFilterContext *ctx, const char *args)
{
int i, nb_outputs = 2;
snprintf(name, sizeof(name), "output%d", i);
pad.type = ctx->filter->inputs[0].type;
pad.name = av_strdup(name);
+ pad.rej_perms = AV_PERM_WRITE;
ff_insert_outpad(ctx, i, &pad);
}
av_freep(&ctx->output_pads[i].name);
}
-static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
+static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
{
AVFilterContext *ctx = inlink->dst;
- int i;
+ int i, ret = 0;
- for (i = 0; i < ctx->nb_outputs; i++)
- ff_start_frame(ctx->outputs[i],
- avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
+ for (i = 0; i < ctx->nb_outputs; i++) {
+ AVFilterBufferRef *buf_out = avfilter_ref_buffer(picref, ~AV_PERM_WRITE);
+ if (!buf_out)
+ return AVERROR(ENOMEM);
+
+ ret = ff_start_frame(ctx->outputs[i], buf_out);
+ if (ret < 0)
+ break;
+ }
+ return ret;
}
-static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
{
AVFilterContext *ctx = inlink->dst;
- int i;
+ int i, ret = 0;
- for (i = 0; i < ctx->nb_outputs; i++)
- ff_draw_slice(ctx->outputs[i], y, h, slice_dir);
+ for (i = 0; i < ctx->nb_outputs; i++) {
+ ret = ff_draw_slice(ctx->outputs[i], y, h, slice_dir);
+ if (ret < 0)
+ break;
+ }
+ return ret;
}
-static void end_frame(AVFilterLink *inlink)
+static int end_frame(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
- int i;
-
- for (i = 0; i < ctx->nb_outputs; i++)
- ff_end_frame(ctx->outputs[i]);
+ int i, ret = 0;
- avfilter_unref_buffer(inlink->cur_buf);
+ for (i = 0; i < ctx->nb_outputs; i++) {
+ ret = ff_end_frame(ctx->outputs[i]);
+ if (ret < 0)
+ break;
+ }
+ return ret;
}
AVFilter avfilter_vf_split = {
.init = split_init,
.uninit = split_uninit,
- .inputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer= ff_null_get_video_buffer,
- .start_frame = start_frame,
- .draw_slice = draw_slice,
- .end_frame = end_frame, },
- { .name = NULL}},
- .outputs = (AVFilterPad[]) {{ .name = NULL}},
+ .inputs = (const AVFilterPad[]) {{ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .get_video_buffer= ff_null_get_video_buffer,
+ .start_frame = start_frame,
+ .draw_slice = draw_slice,
+ .end_frame = end_frame, },
+ { .name = NULL}},
+ .outputs = (const AVFilterPad[]) {{ .name = NULL}},
};
-static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *samplesref)
+static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *samplesref)
{
AVFilterContext *ctx = inlink->dst;
- int i;
+ int i, ret = 0;
+
+ for (i = 0; i < ctx->nb_outputs; i++) {
+ AVFilterBufferRef *buf_out = avfilter_ref_buffer(samplesref,
+ ~AV_PERM_WRITE);
+ if (!buf_out) {
+ ret = AVERROR(ENOMEM);
+ break;
+ }
- for (i = 0; i < ctx->nb_outputs; i++)
- ff_filter_samples(inlink->dst->outputs[i],
- avfilter_ref_buffer(samplesref, ~AV_PERM_WRITE));
+ ret = ff_filter_samples(inlink->dst->outputs[i], buf_out);
+ if (ret < 0)
+ break;
+ }
avfilter_unref_buffer(samplesref);
+ return ret;
}
AVFilter avfilter_af_asplit = {