55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
#include <mpv/client.h>
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#include <stdlib.h>
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#include <string.h>
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int mpv_get_peaks(mpv_handle* handle, double* lPeak, double* rPeak, double* lRMS, double* rRMS) {
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mpv_node result;
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int ret = mpv_get_property(handle, "af-metadata/astats", MPV_FORMAT_NODE, &result);
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if (ret != MPV_ERROR_SUCCESS) {
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return ret;
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}
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if (result.format != MPV_FORMAT_NODE_MAP) {
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mpv_free_node_contents(&result);
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return MPV_ERROR_PROPERTY_FORMAT;
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}
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int found = 0;
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for (int i = 0; found < 4 && i < result.u.list->num; i++) {
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if (strcmp("lavfi.astats.1.Peak_level", result.u.list->keys[i]) == 0) {
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if (result.u.list->values[i].format != MPV_FORMAT_STRING) {
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ret = MPV_ERROR_PROPERTY_FORMAT;
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break;
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}
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*lPeak = atof(result.u.list->values[i].u.string);
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found++;
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}
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if (strcmp("lavfi.astats.2.Peak_level", result.u.list->keys[i]) == 0) {
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if (result.u.list->values[i].format != MPV_FORMAT_STRING) {
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ret = MPV_ERROR_PROPERTY_FORMAT;
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break;
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}
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*rPeak = atof(result.u.list->values[i].u.string);
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found++;
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}
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if (strcmp("lavfi.astats.1.RMS_level", result.u.list->keys[i]) == 0) {
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if (result.u.list->values[i].format != MPV_FORMAT_STRING) {
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ret = MPV_ERROR_PROPERTY_FORMAT;
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break;
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}
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*lRMS = atof(result.u.list->values[i].u.string);
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found++;
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}
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if (strcmp("lavfi.astats.2.RMS_level", result.u.list->keys[i]) == 0) {
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if (result.u.list->values[i].format != MPV_FORMAT_STRING) {
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ret = MPV_ERROR_PROPERTY_FORMAT;
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break;
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}
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*rRMS = atof(result.u.list->values[i].u.string);
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found++;
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}
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}
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mpv_free_node_contents(&result);
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return ret;
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}
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