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new bfa67bafad lavfi: af_showinfo: add support for IAMF side-data
bfa67bafad is described below
commit bfa67bafadf42758a6e456ae2653b7f45783ab46
Author: Marvin Scholz <[email protected]>
AuthorDate: Tue Jun 2 14:49:01 2026 +0200
Commit: Marvin Scholz <[email protected]>
CommitDate: Wed Jun 17 00:03:14 2026 +0000
lavfi: af_showinfo: add support for IAMF side-data
---
libavfilter/af_ashowinfo.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/libavfilter/af_ashowinfo.c b/libavfilter/af_ashowinfo.c
index ebcd5c996f..c0be37cd3d 100644
--- a/libavfilter/af_ashowinfo.c
+++ b/libavfilter/af_ashowinfo.c
@@ -29,6 +29,7 @@
#include "libavutil/attributes.h"
#include "libavutil/channel_layout.h"
#include "libavutil/downmix_info.h"
+#include "libavutil/iamf.h"
#include "libavutil/mem.h"
#include "libavutil/replaygain.h"
#include "libavutil/timestamp.h"
@@ -165,6 +166,85 @@ static void dump_audio_service_type(AVFilterContext *ctx,
AVFrameSideData *sd)
}
}
+static void dump_iamf_parameter_definition(AVFilterContext *ctx, const
AVFrameSideData *sd)
+{
+ const AVIAMFParamDefinition *param = (AVIAMFParamDefinition *)sd->data;
+
+ switch (param->type) {
+ case AV_IAMF_PARAMETER_DEFINITION_MIX_GAIN:
+ av_log(ctx, AV_LOG_INFO, "iamf mix gain parameters: ");
+ break;
+ case AV_IAMF_PARAMETER_DEFINITION_DEMIXING:
+ av_log(ctx, AV_LOG_INFO, "iamf demixing parameters: ");
+ break;
+ case AV_IAMF_PARAMETER_DEFINITION_RECON_GAIN:
+ av_log(ctx, AV_LOG_INFO, "iamf recon gain parameters: ");
+ break;
+ default:
+ av_log(ctx, AV_LOG_ERROR, "unknown iamf parameter definition type:
%d",
+ param->type);
+ return;
+ }
+
+ av_log(ctx, AV_LOG_INFO,
+ "nb_subblocks=%d, "
+ "parameter_id=%d, "
+ "parameter_rate=%d, "
+ "duration=%d, "
+ "constant_subblock_duration=%d,",
+ param->nb_subblocks,
+ param->parameter_id,
+ param->parameter_rate,
+ param->duration,
+ param->constant_subblock_duration
+ );
+
+ for (unsigned i = 0; i < param->nb_subblocks; i++) {
+ const void *subblock = av_iamf_param_definition_get_subblock(param, i);
+
+ av_log(ctx, AV_LOG_INFO, " subblock[%d]={ ", i);
+ switch (param->type) {
+ case AV_IAMF_PARAMETER_DEFINITION_MIX_GAIN: {
+ const AVIAMFMixGain *mix = subblock;
+ av_log(ctx, AV_LOG_INFO,
+ "subblock_duration=%d, "
+ "animation_type=%d, "
+ "start_point_value=%d/%d, "
+ "end_point_value=%d/%d, "
+ "control_point_value=%d/%d, "
+ "control_point_relative_time=%d/%d",
+ mix->subblock_duration,
+ mix->animation_type,
+ mix->start_point_value.num, mix->start_point_value.den,
+ mix->end_point_value.num, mix->end_point_value.den,
+ mix->control_point_value.num, mix->control_point_value.den,
+ mix->control_point_relative_time.num,
mix->control_point_relative_time.den
+ );
+ break;
+ }
+ case AV_IAMF_PARAMETER_DEFINITION_DEMIXING: {
+ const AVIAMFDemixingInfo *demix = subblock;
+ av_log(ctx, AV_LOG_INFO,
+ "subblock_duration=%d, "
+ "dmixp_mode=%d",
+ demix->subblock_duration,
+ demix->dmixp_mode
+ );
+ break;
+ }
+ case AV_IAMF_PARAMETER_DEFINITION_RECON_GAIN: {
+ const AVIAMFReconGain *recon = subblock;
+ av_log(ctx, AV_LOG_INFO,
+ "subblock_duration=%d", recon->subblock_duration
+ );
+ break;
+ }
+ }
+ av_log(ctx, AV_LOG_INFO, (i == param->nb_subblocks - 1) ? " }" : "
},");
+ }
+
+}
+
static void dump_unknown(AVFilterContext *ctx, AVFrameSideData *sd)
{
av_log(ctx, AV_LOG_INFO, "unknown side data type: %d, size "
@@ -224,6 +304,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
case AV_FRAME_DATA_DOWNMIX_INFO: dump_downmix (ctx, sd); 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:
+ case AV_FRAME_DATA_IAMF_MIX_GAIN_PARAM:
+ case AV_FRAME_DATA_IAMF_RECON_GAIN_INFO_PARAM:
+ dump_iamf_parameter_definition(ctx, sd);
+ break;
default: dump_unknown (ctx, sd); break;
}
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