libx264: introduce slice-max-size option
Yet another option useful for low latency streaming.
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@ -64,6 +64,7 @@ typedef struct X264Context {
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float cplxblur;
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char *partitions;
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int direct_pred;
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int slice_max_size;
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} X264Context;
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static void X264_log(void *p, int level, const char *fmt, va_list args)
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@ -390,6 +391,9 @@ static av_cold int X264_init(AVCodecContext *avctx)
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if (x4->direct_pred >= 0)
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x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
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if (x4->slice_max_size >= 0)
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x4->params.i_slice_max_size = x4->slice_max_size;
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if (x4->fastfirstpass)
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x264_param_apply_fastfirstpass(&x4->params);
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@ -496,6 +500,7 @@ static const AVOption options[] = {
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{ "spatial", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
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{ "temporal", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
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{ "auto", NULL, 0, FF_OPT_TYPE_CONST, { X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
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{ "slice-max-size","Constant quantization parameter rate control method",OFFSET(slice_max_size), FF_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
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{ NULL },
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};
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