mirror of https://git.ffmpeg.org/ffmpeg.git
avfilter/avf_showspectrum: also show sample rate and channel layout
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -1082,9 +1082,19 @@ static int showspectrumpic_request_frame(AVFilterLink *outlink)
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if (s->legend) {
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int multi = (s->mode == SEPARATE && s->color_mode == CHANNEL);
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float spp = samples / (float)sz;
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char *text;
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uint8_t *dst;
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char chlayout_str[128];
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av_get_channel_layout_string(chlayout_str, sizeof(chlayout_str), inlink->channels,
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inlink->channel_layout);
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text = av_asprintf("%d Hz | %s", inlink->sample_rate, chlayout_str);
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drawtext(s->outpicref, 2, outlink->h - 10, "CREATED BY LIBAVFILTER", 0);
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drawtext(s->outpicref, outlink->w - 2 - strlen(text) * 10, outlink->h - 10, text, 0);
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av_freep(&text);
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dst = s->outpicref->data[0] + (s->start_y - 1) * s->outpicref->linesize[0] + s->start_x - 1;
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for (x = 0; x < s->w + 1; x++)
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