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avfilter/af_ashowinfo: support printing downmix matrix side data

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer committed 2026-07-11 19:32:17 -03:00
1 parent 7e68fdd4da
commit 6336cffdce
1 file changed
+37
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libavfilter/af_ashowinfo.c
+37
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@@ -105,6 +105,42 @@ static void dump_downmix(AVFilterContext *ctx, AVFrameSideData *sd)
di->lfe_mix_level);
}
static const int downmix_type_map[AV_DOWNMIX_TYPE_NB] = {
[AV_DOWNMIX_TYPE_UNKNOWN] = 0,
[AV_DOWNMIX_TYPE_LORO] = 2,
[AV_DOWNMIX_TYPE_LTRT] = 2,
[AV_DOWNMIX_TYPE_DPLII] = 2,
};
static void dump_downmix_matrix(AVFilterContext *ctx, AVFrameSideData *sd, AVChannelLayout *ch_layout)
{
AVDownmixMatrix *dm = (AVDownmixMatrix *)sd->data;
char buf[128];
av_log(ctx, AV_LOG_INFO, "downmix matrix: ");
if (dm->in_ch_count != ch_layout->nb_channels) {
av_log(ctx, AV_LOG_INFO, "invalid data");
return;
}
av_log(ctx, AV_LOG_INFO, "downmix type - ");
switch (dm->downmix_type) {
case AV_DOWNMIX_TYPE_LORO: av_log(ctx, AV_LOG_INFO, "Lo/Ro\n"); break;
case AV_DOWNMIX_TYPE_LTRT: av_log(ctx, AV_LOG_INFO, "Lt/Rt\n"); break;
case AV_DOWNMIX_TYPE_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II\n"); break;
default: av_log(ctx, AV_LOG_WARNING, "invalid data"); return;
}
for (int i = 0; i < downmix_type_map[dm->downmix_type]; i++) {
av_log(ctx, AV_LOG_INFO, "[%s] = { ", i ? "FR" : "FL");
for (int j = 0; j < dm->in_ch_count; j++) {
av_channel_name(buf, sizeof(buf), av_channel_layout_channel_from_index(ch_layout, j));
av_log(ctx, AV_LOG_INFO, ".%s = %f, ", buf, *av_downmix_matrix_coeff(dm, i, j));
}
av_log(ctx, AV_LOG_INFO, "}%s", i == downmix_type_map[dm->downmix_type] - 1 ? "" : ",\n");
}
}
static void print_gain(AVFilterContext *ctx, const char *str, int32_t gain)
{
av_log(ctx, AV_LOG_INFO, "%s - ", str);
@@ -302,6 +338,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
switch (sd->type) {
case AV_FRAME_DATA_MATRIXENCODING: dump_matrixenc (ctx, sd); break;
case AV_FRAME_DATA_DOWNMIX_INFO: dump_downmix (ctx, sd); break;
case AV_FRAME_DATA_DOWNMIX_MATRIX: dump_downmix_matrix(ctx, sd, &buf->ch_layout); break;
case AV_FRAME_DATA_REPLAYGAIN: dump_replaygain(ctx, sd); break;
case AV_FRAME_DATA_AUDIO_SERVICE_TYPE: dump_audio_service_type(ctx, sd); break;
case AV_FRAME_DATA_IAMF_DEMIXING_INFO_PARAM: