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@@ -25,6 +25,8 @@ |
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* a filter enforcing given constant framerate |
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* a filter enforcing given constant framerate |
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*/ |
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*/ |
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#include <float.h> |
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#include "libavutil/common.h" |
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#include "libavutil/common.h" |
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#include "libavutil/fifo.h" |
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#include "libavutil/fifo.h" |
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#include "libavutil/mathematics.h" |
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#include "libavutil/mathematics.h" |
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@@ -61,7 +63,7 @@ typedef struct FPSContext { |
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#define F AV_OPT_FLAG_FILTERING_PARAM |
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#define F AV_OPT_FLAG_FILTERING_PARAM |
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static const AVOption fps_options[] = { |
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static const AVOption fps_options[] = { |
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{ "fps", "A string describing desired output framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = V|F }, |
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{ "fps", "A string describing desired output framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = V|F }, |
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{ "start_time", "Assume the first PTS should be this value.", OFFSET(start_time), AV_OPT_TYPE_DOUBLE, { .dbl = -9223372036854775808.0}, INT64_MIN, INT64_MAX, V }, |
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{ "start_time", "Assume the first PTS should be this value.", OFFSET(start_time), AV_OPT_TYPE_DOUBLE, { .dbl = DBL_MAX}, -DBL_MAX, DBL_MAX, V }, |
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{ "round", "set rounding method for timestamps", OFFSET(rounding), AV_OPT_TYPE_INT, { .i64 = AV_ROUND_NEAR_INF }, 0, 5, V|F, "round" }, |
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{ "round", "set rounding method for timestamps", OFFSET(rounding), AV_OPT_TYPE_INT, { .i64 = AV_ROUND_NEAR_INF }, 0, 5, V|F, "round" }, |
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{ "zero", "round towards 0", OFFSET(rounding), AV_OPT_TYPE_CONST, { .i64 = AV_ROUND_ZERO }, 0, 5, V|F, "round" }, |
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{ "zero", "round towards 0", OFFSET(rounding), AV_OPT_TYPE_CONST, { .i64 = AV_ROUND_ZERO }, 0, 5, V|F, "round" }, |
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{ "inf", "round away from 0", OFFSET(rounding), AV_OPT_TYPE_CONST, { .i64 = AV_ROUND_INF }, 0, 5, V|F, "round" }, |
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{ "inf", "round away from 0", OFFSET(rounding), AV_OPT_TYPE_CONST, { .i64 = AV_ROUND_INF }, 0, 5, V|F, "round" }, |
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@@ -182,7 +184,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf) |
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if (ret < 0) |
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if (ret < 0) |
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return ret; |
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return ret; |
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if (s->start_time != AV_NOPTS_VALUE) { |
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if (s->start_time != DBL_MAX) { |
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double first_pts = s->start_time * AV_TIME_BASE; |
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double first_pts = s->start_time * AV_TIME_BASE; |
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first_pts = FFMIN(FFMAX(first_pts, INT64_MIN), INT64_MAX); |
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first_pts = FFMIN(FFMAX(first_pts, INT64_MIN), INT64_MAX); |
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s->first_pts = s->pts = av_rescale_q(first_pts, AV_TIME_BASE_Q, |
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s->first_pts = s->pts = av_rescale_q(first_pts, AV_TIME_BASE_Q, |
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