Go to the source code of this file.
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enum | DisplayMode {
SINGLE,
SEPARATE,
NB_DMODES,
LINE,
BAR,
DOT,
NB_MODES,
COMBINED,
SEPARATE,
NB_MODES
} |
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enum | ChannelMode { COMBINED,
SEPARATE,
NB_CMODES
} |
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enum | FrequencyScale {
FS_LINEAR,
FS_LOG,
FS_RLOG,
NB_FSCALES,
F_LINEAR,
F_LOG,
NB_FSCALES
} |
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enum | AmplitudeScale {
ALINEAR,
ALOG,
NB_ASCALES,
AS_LINEAR,
AS_SQRT,
AS_CBRT,
AS_LOG,
NB_ASCALES
} |
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| AVFILTER_DEFINE_CLASS (showfreqs) |
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static int | query_formats (AVFilterContext *ctx) |
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static av_cold int | init (AVFilterContext *ctx) |
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static int | config_output (AVFilterLink *outlink) |
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static void | draw_dot (AVFrame *out, int x, int y, uint8_t fg[4]) |
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static int | get_sx (ShowFreqsContext *s, int f) |
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static float | get_bsize (ShowFreqsContext *s, int f) |
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static void | plot_freq (ShowFreqsContext *s, int ch, double a, int f, uint8_t fg[4], int *prev_y, AVFrame *out, AVFilterLink *outlink) |
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static int | plot_freqs (AVFilterLink *inlink, AVFrame *in) |
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static int | filter_frame (AVFilterLink *inlink) |
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static int | activate (AVFilterContext *ctx) |
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static av_cold void | uninit (AVFilterContext *ctx) |
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◆ OFFSET
◆ FLAGS
◆ RE
#define RE |
( |
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x, |
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ch |
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) |
| s->fft_data[ch][x].re |
◆ IM
#define IM |
( |
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x, |
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ch |
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) |
| s->fft_data[ch][x].im |
#define M |
( |
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a, |
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b |
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) |
| (sqrt((a) * (a) + (b) * (b))) |
◆ DisplayMode
Enumerator |
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SINGLE | |
SEPARATE | |
NB_DMODES | |
LINE | |
BAR | |
DOT | |
NB_MODES | |
COMBINED | |
SEPARATE | |
NB_MODES | |
Definition at line 39 of file avf_showfreqs.c.
◆ ChannelMode
◆ FrequencyScale
Enumerator |
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FS_LINEAR | |
FS_LOG | |
FS_RLOG | |
NB_FSCALES | |
F_LINEAR | |
F_LOG | |
NB_FSCALES | |
Definition at line 41 of file avf_showfreqs.c.
◆ AmplitudeScale
Enumerator |
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ALINEAR | |
ALOG | |
NB_ASCALES | |
AS_LINEAR | |
AS_SQRT | |
AS_CBRT | |
AS_LOG | |
NB_ASCALES | |
Definition at line 42 of file avf_showfreqs.c.
◆ AVFILTER_DEFINE_CLASS()
AVFILTER_DEFINE_CLASS |
( |
showfreqs |
| ) |
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◆ query_formats()
◆ init()
◆ config_output()
◆ draw_dot()
◆ get_sx()
◆ get_bsize()
◆ plot_freq()
◆ plot_freqs()
◆ filter_frame()
◆ activate()
◆ uninit()
◆ showfreqs_options
◆ showfreqs_inputs
Initial value:= {
{
.name = "default",
},
}
Definition at line 511 of file avf_showfreqs.c.
◆ showfreqs_outputs
Initial value:= {
{
.name = "default",
},
}
Definition at line 519 of file avf_showfreqs.c.
◆ ff_avf_showfreqs
Initial value:= {
.name = "showfreqs",
.priv_class = &showfreqs_class,
}
Definition at line 528 of file avf_showfreqs.c.