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@@ -191,6 +191,35 @@ static int filter_frame(AVFilterLink *link, AVFrame *picref) |
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return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur)); |
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} |
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static int request_frame(AVFilterLink *link) |
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{ |
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AVFilterContext *ctx = link->src; |
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IDETContext *idet = ctx->priv; |
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do { |
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int ret; |
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if (idet->eof) |
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return AVERROR_EOF; |
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ret = ff_request_frame(link->src->inputs[0]); |
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if (ret == AVERROR_EOF && idet->cur) { |
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AVFrame *next = av_frame_clone(idet->next); |
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if (!next) |
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return AVERROR(ENOMEM); |
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filter_frame(link->src->inputs[0], next); |
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idet->eof = 1; |
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} else if (ret < 0) { |
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return ret; |
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} |
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} while (!idet->cur); |
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return 0; |
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} |
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static av_cold void uninit(AVFilterContext *ctx) |
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{ |
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IDETContext *idet = ctx->priv; |
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@@ -253,6 +282,7 @@ static av_cold int init(AVFilterContext *ctx) |
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{ |
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IDETContext *idet = ctx->priv; |
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idet->eof = 0; |
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idet->last_type = UNDETERMINED; |
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memset(idet->history, UNDETERMINED, HIST_SIZE); |
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@@ -279,6 +309,7 @@ static const AVFilterPad idet_outputs[] = { |
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.name = "default", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.config_props = config_output, |
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.request_frame = request_frame |
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}, |
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{ NULL } |
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}; |
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