mirror of https://git.ffmpeg.org/ffmpeg.git
lavfi/showwaves: make use of AV_OPT_TYPE_VIDEO_RATE
Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -41,7 +41,6 @@ enum ShowWavesMode {
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typedef struct {
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const AVClass *class;
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int w, h;
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char *rate_str;
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AVRational rate;
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int buf_idx;
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AVFrame *outpicref;
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@ -55,8 +54,8 @@ typedef struct {
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption showwaves_options[] = {
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{ "rate", "set video rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
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{ "r", "set video rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
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{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },
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{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },
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{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "600x240"}, 0, 0, FLAGS },
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{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "600x240"}, 0, 0, FLAGS },
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{ "n", "set how many samples to show in the same point", OFFSET(n), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS },
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@ -88,7 +87,6 @@ static av_cold void uninit(AVFilterContext *ctx)
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{
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ShowWavesContext *showwaves = ctx->priv;
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av_freep(&showwaves->rate_str);
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av_frame_free(&showwaves->outpicref);
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}
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@ -131,22 +129,9 @@ static int config_output(AVFilterLink *outlink)
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AVFilterContext *ctx = outlink->src;
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AVFilterLink *inlink = ctx->inputs[0];
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ShowWavesContext *showwaves = ctx->priv;
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int err;
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if (showwaves->n && showwaves->rate_str) {
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av_log(ctx, AV_LOG_ERROR, "Options 'n' and 'rate' cannot be set at the same time\n");
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return AVERROR(EINVAL);
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}
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if (!showwaves->n) {
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if (!showwaves->rate_str)
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showwaves->rate = (AVRational){25,1}; /* set default value */
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else if ((err = av_parse_video_rate(&showwaves->rate, showwaves->rate_str)) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", showwaves->rate_str);
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return err;
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}
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if (!showwaves->n)
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showwaves->n = FFMAX(1, ((double)inlink->sample_rate / (showwaves->w * av_q2d(showwaves->rate))) + 0.5);
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}
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outlink->w = showwaves->w;
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outlink->h = showwaves->h;
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