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synced 2024-08-22 09:15:06 +02:00
libx264: fix setting some options.
Specifically: gop_size, max_b_frames, scenechange_threshold, qmin, qmax, max_qdiff, qblur, qcompress and refs. Change their default values to -1 and only use them if the user explicitly set them. Otherwise x264 defaults are used. Move setting those options after x264_param_default_preset(), so they don't get overwritten by it.
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@ -189,9 +189,6 @@ static av_cold int X264_init(AVCodecContext *avctx)
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x264_param_default(&x4->params);
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x4->params.i_keyint_max = avctx->gop_size;
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x4->params.i_bframe = avctx->max_b_frames;
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x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
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x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
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x4->params.i_bframe_bias = avctx->bframebias;
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@ -200,22 +197,12 @@ static av_cold int X264_init(AVCodecContext *avctx)
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if (x4->params.i_keyint_min > x4->params.i_keyint_max)
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x4->params.i_keyint_min = x4->params.i_keyint_max;
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x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
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x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
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x4->params.i_deblocking_filter_alphac0 = avctx->deblockalpha;
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x4->params.i_deblocking_filter_beta = avctx->deblockbeta;
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x4->params.rc.i_qp_min = avctx->qmin;
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x4->params.rc.i_qp_max = avctx->qmax;
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x4->params.rc.i_qp_step = avctx->max_qdiff;
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x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
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x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
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x4->params.rc.f_complexity_blur = avctx->complexityblur;
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x4->params.i_frame_reference = avctx->refs;
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x4->params.analyse.inter = 0;
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if (avctx->partitions) {
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if (avctx->partitions & X264_PART_I4X4)
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@ -333,6 +320,25 @@ static av_cold int X264_init(AVCodecContext *avctx)
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x4->params.rc.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE);
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#endif
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if (avctx->gop_size >= 0)
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x4->params.i_keyint_max = avctx->gop_size;
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if (avctx->max_b_frames >= 0)
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x4->params.i_bframe = avctx->max_b_frames;
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if (avctx->scenechange_threshold >= 0)
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x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
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if (avctx->qmin >= 0)
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x4->params.rc.i_qp_min = avctx->qmin;
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if (avctx->qmax >= 0)
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x4->params.rc.i_qp_max = avctx->qmax;
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if (avctx->max_qdiff >= 0)
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x4->params.rc.i_qp_step = avctx->max_qdiff;
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if (avctx->qblur >= 0)
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x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
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if (avctx->qcompress >= 0)
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x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
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if (avctx->refs >= 0)
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x4->params.i_frame_reference = avctx->refs;
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if (x4->aq_mode >= 0)
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x4->params.rc.i_aq_mode = x4->aq_mode;
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if (x4->aq_strength >= 0)
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@ -475,6 +481,15 @@ static const AVClass class = {
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static const AVCodecDefault x264_defaults[] = {
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{ "b", "0" },
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{ "bf", "-1" },
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{ "g", "-1" },
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{ "qmin", "-1" },
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{ "qmax", "-1" },
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{ "qdiff", "-1" },
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{ "qblur", "-1" },
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{ "qcomp", "-1" },
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{ "refs", "-1" },
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{ "sc_threshold", "-1" },
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{ "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
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{ NULL },
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};
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@ -147,11 +147,11 @@ static const AVOption options[]={
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{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
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{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
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{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E},
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{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, {.dbl = 0.5 }, 0, FLT_MAX, V|E},
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{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, {.dbl = 2 }, 0, 69, V|E},
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{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, {.dbl = 31 }, 0, 69, V|E},
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{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
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{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, {.dbl = 2 }, -1, 69, V|E},
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{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, {.dbl = 31 }, -1, 69, V|E},
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{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, {.dbl = 3 }, INT_MIN, INT_MAX, V|E},
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{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, FF_MAX_B_FRAMES, V|E},
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{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, -1, FF_MAX_B_FRAMES, V|E},
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{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
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{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
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{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},
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