#define REASONABLE_SIZE 1024
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int init(AVFilterContext *ctx, const char *args)
{
TileContext *tile = ctx->priv;
int r;
* buffers are fed to start_frame in the order they were obtained from
* get_buffer (think B-frames). */
-static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
+static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
{
AVFilterContext *ctx = inlink->dst;
TileContext *tile = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
if (tile->current)
- return;
+ return 0;
outlink->out_buf = ff_get_video_buffer(outlink, AV_PERM_WRITE,
outlink->w, outlink->h);
avfilter_copy_buffer_ref_props(outlink->out_buf, picref);
outlink->out_buf->video->w = outlink->w;
outlink->out_buf->video->h = outlink->h;
- ff_start_frame(outlink, outlink->out_buf);
+ return 0;
}
-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;
TileContext *tile = ctx->priv;
x0, y0 + y, 0, y, inlink->cur_buf->video->w, h);
/* TODO if tile->w == 1 && slice_dir is always 1, we could draw_slice
* immediately. */
+ return 0;
}
-static void draw_blank_frame(AVFilterContext *ctx)
+static void draw_blank_frame(AVFilterContext *ctx, AVFilterBufferRef *out_buf)
{
TileContext *tile = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
- AVFilterLink *outlink = ctx->outputs[0];
unsigned x0 = inlink->w * (tile->current % tile->w);
unsigned y0 = inlink->h * (tile->current / tile->w);
ff_fill_rectangle(&tile->draw, &tile->blank,
- outlink->out_buf->data, outlink->out_buf->linesize,
+ out_buf->data, out_buf->linesize,
x0, y0, inlink->w, inlink->h);
tile->current++;
}
{
TileContext *tile = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
+ AVFilterBufferRef *out_buf = outlink->out_buf;
+ outlink->out_buf = NULL;
+ ff_start_frame(outlink, out_buf);
while (tile->current < tile->w * tile->h)
- draw_blank_frame(ctx);
- ff_draw_slice(outlink, 0, outlink->out_buf->video->h, 1);
+ draw_blank_frame(ctx, out_buf);
+ ff_draw_slice(outlink, 0, out_buf->video->h, 1);
ff_end_frame(outlink);
tile->current = 0;
}
-static void end_frame(AVFilterLink *inlink)
+static int end_frame(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
TileContext *tile = ctx->priv;
- avfilter_unref_buffer(inlink->cur_buf);
+ avfilter_unref_bufferp(&inlink->cur_buf);
if (++tile->current == tile->w * tile->h)
end_last_frame(ctx);
+ return 0;
}
static int request_frame(AVFilterLink *outlink)