lavfi: convert remaining input/output list compound literals to named objects.

This is following 568c70e79e.

libavfilter/af_aconvert.c

@@ -154,6 +154,25 @@ static int  filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamplesref)
     return ret;
 }
 
+static const AVFilterPad aconvert_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad aconvert_outputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .config_props = config_output,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_aconvert = {
     .name          = "aconvert",
     .description   = NULL_IF_CONFIG_SMALL("Convert the input audio to sample_fmt:channel_layout."),
@@ -161,14 +180,6 @@ AVFilter avfilter_af_aconvert = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_AUDIO,
-                                    .filter_frame    = filter_frame,
-                                    .min_perms       = AV_PERM_READ, },
-                                  { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_AUDIO,
-                                    .config_props    = config_output, },
-                                  { .name = NULL}},
+    .inputs        = aconvert_inputs,
+    .outputs       = aconvert_outputs,
 };

libavfilter/af_amerge.c

@@ -323,6 +323,16 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
     return 0;
 }
 
+static const AVFilterPad amerge_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_amerge = {
     .name          = "amerge",
     .description   = NULL_IF_CONFIG_SMALL("Merge two audio streams into "
@@ -331,14 +341,7 @@ AVFilter avfilter_af_amerge = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) { { .name = NULL } },
-    .outputs   = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .config_props     = config_output,
-          .request_frame    = request_frame, },
-        { .name = NULL }
-    },
-    .priv_class = &amerge_class,
+    .inputs        = NULL,
+    .outputs       = amerge_outputs,
+    .priv_class    = &amerge_class,
 };

libavfilter/af_aresample.c

@@ -253,6 +253,26 @@ static int request_frame(AVFilterLink *outlink)
     return ret;
 }
 
+static const AVFilterPad aresample_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL },
+};
+
+static const AVFilterPad aresample_outputs[] = {
+    {
+        .name          = "default",
+        .config_props  = config_output,
+        .request_frame = request_frame,
+        .type          = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_af_aresample = {
     .name          = "aresample",
     .description   = NULL_IF_CONFIG_SMALL("Resample audio data."),
@@ -260,15 +280,6 @@ AVFilter avfilter_af_aresample = {
     .uninit        = uninit,
     .query_formats = query_formats,
     .priv_size     = sizeof(AResampleContext),
-
-    .inputs    = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_AUDIO,
-                                    .filter_frame    = filter_frame,
-                                    .min_perms       = AV_PERM_READ, },
-                                  { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name      = "default",
-                                    .config_props    = config_output,
-                                    .request_frame   = request_frame,
-                                    .type            = AVMEDIA_TYPE_AUDIO, },
-                                  { .name = NULL}},
+    .inputs        = aresample_inputs,
+    .outputs       = aresample_outputs,
 };

libavfilter/af_asetnsamples.c

@@ -175,31 +175,33 @@ static int request_frame(AVFilterLink *outlink)
     return ret;
 }
 
+static const AVFilterPad asetnsamples_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ | AV_PERM_WRITE,
+    },
+    {  NULL }
+};
+
+static const AVFilterPad asetnsamples_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .request_frame = request_frame,
+        .config_props  = config_props_output,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_asetnsamples = {
     .name           = "asetnsamples",
     .description    = NULL_IF_CONFIG_SMALL("Set the number of samples for each output audio frames."),
     .priv_size      = sizeof(ASNSContext),
     .init           = init,
     .uninit         = uninit,
-
-    .inputs  = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_AUDIO,
-            .filter_frame   = filter_frame,
-            .min_perms      = AV_PERM_READ|AV_PERM_WRITE
-        },
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_AUDIO,
-            .request_frame  = request_frame,
-            .config_props   = config_props_output,
-        },
-        { .name = NULL }
-    },
-    .priv_class = &asetnsamples_class,
+    .inputs         = asetnsamples_inputs,
+    .outputs        = asetnsamples_outputs,
+    .priv_class     = &asetnsamples_class,
 };

libavfilter/af_astreamsync.c

@@ -180,6 +180,36 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
     return 0;
 }
 
+static const AVFilterPad astreamsync_inputs[] = {
+    {
+        .name         = "in1",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ | AV_PERM_PRESERVE,
+    },{
+        .name         = "in2",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL }
+};
+
+static const AVFilterPad astreamsync_outputs[] = {
+    {
+        .name          = "out1",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },{
+        .name          = "out2",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_astreamsync = {
     .name          = "astreamsync",
     .description   = NULL_IF_CONFIG_SMALL("Copy two streams of audio data "
@@ -187,27 +217,6 @@ AVFilter avfilter_af_astreamsync = {
     .priv_size     = sizeof(AStreamSyncContext),
     .init          = init,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "in1",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .filter_frame     = filter_frame,
-          .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE, },
-        { .name             = "in2",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .filter_frame     = filter_frame,
-          .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE, },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name             = "out1",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .config_props     = config_output,
-          .request_frame    = request_frame, },
-        { .name             = "out2",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .config_props     = config_output,
-          .request_frame    = request_frame, },
-        { .name = NULL }
-    },
+    .inputs        = astreamsync_inputs,
+    .outputs       = astreamsync_outputs,
 };

libavfilter/af_atempo.c

@@ -1136,6 +1136,26 @@ static int process_command(AVFilterContext *ctx,
     return !strcmp(cmd, "tempo") ? yae_set_tempo(ctx, arg) : AVERROR(ENOSYS);
 }
 
+static const AVFilterPad atempo_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .config_props = config_props,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad atempo_outputs[] = {
+    {
+        .name          = "default",
+        .request_frame = request_frame,
+        .type          = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_atempo = {
     .name            = "atempo",
     .description     = NULL_IF_CONFIG_SMALL("Adjust audio tempo."),
@@ -1144,20 +1164,6 @@ AVFilter avfilter_af_atempo = {
     .query_formats   = query_formats,
     .process_command = process_command,
     .priv_size       = sizeof(ATempoContext),
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name            = "default",
-          .type            = AVMEDIA_TYPE_AUDIO,
-          .filter_frame    = filter_frame,
-          .config_props    = config_props,
-          .min_perms       = AV_PERM_READ, },
-        { .name = NULL}
-    },
-
-    .outputs   = (const AVFilterPad[]) {
-        { .name            = "default",
-          .request_frame   = request_frame,
-          .type            = AVMEDIA_TYPE_AUDIO, },
-        { .name = NULL}
-    },
+    .inputs          = atempo_inputs,
+    .outputs         = atempo_outputs,
 };

libavfilter/af_earwax.c

@@ -153,19 +153,30 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
     return ret;
 }
 
+static const AVFilterPad earwax_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .config_props = config_input,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad earwax_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_earwax = {
     .name           = "earwax",
     .description    = NULL_IF_CONFIG_SMALL("Widen the stereo image."),
     .query_formats  = query_formats,
     .priv_size      = sizeof(EarwaxContext),
-    .inputs  = (const AVFilterPad[])  {{  .name     = "default",
-                                    .type           = AVMEDIA_TYPE_AUDIO,
-                                    .filter_frame   = filter_frame,
-                                    .config_props   = config_input,
-                                    .min_perms      = AV_PERM_READ, },
-                                 {  .name = NULL}},
-
-    .outputs = (const AVFilterPad[])  {{  .name     = "default",
-                                    .type           = AVMEDIA_TYPE_AUDIO, },
-                                 {  .name = NULL}},
+    .inputs         = earwax_inputs,
+    .outputs        = earwax_outputs,
 };

libavfilter/af_pan.c

@@ -376,6 +376,25 @@ static av_cold void uninit(AVFilterContext *ctx)
     swr_free(&pan->swr);
 }
 
+static const AVFilterPad pan_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .config_props = config_props,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad pan_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_pan = {
     .name          = "pan",
     .description   = NULL_IF_CONFIG_SMALL("Remix channels with coefficients (panning)."),
@@ -383,18 +402,6 @@ AVFilter avfilter_af_pan = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .config_props     = config_props,
-          .filter_frame     = filter_frame,
-          .min_perms        = AV_PERM_READ, },
-        { .name = NULL}
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO, },
-        { .name = NULL}
-    },
+    .inputs        = pan_inputs,
+    .outputs       = pan_outputs,
 };

libavfilter/af_silencedetect.c

@@ -162,24 +162,31 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad silencedetect_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad silencedetect_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_silencedetect = {
     .name          = "silencedetect",
     .description   = NULL_IF_CONFIG_SMALL("Detect silence."),
     .priv_size     = sizeof(SilenceDetectContext),
     .init          = init,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .get_audio_buffer = ff_null_get_audio_buffer,
-          .filter_frame     = filter_frame, },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name = "default",
-          .type = AVMEDIA_TYPE_AUDIO, },
-        { .name = NULL }
-    },
-    .priv_class = &silencedetect_class,
+    .inputs        = silencedetect_inputs,
+    .outputs       = silencedetect_outputs,
+    .priv_class    = &silencedetect_class,
 };

libavfilter/af_volume.c

@@ -172,20 +172,30 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
     return ff_filter_frame(outlink, insamples);
 }
 
+static const AVFilterPad volume_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ | AV_PERM_WRITE,
+    },
+    { NULL },
+};
+
+static const AVFilterPad volume_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_af_volume = {
     .name           = "volume",
     .description    = NULL_IF_CONFIG_SMALL("Change input volume."),
     .query_formats  = query_formats,
     .priv_size      = sizeof(VolumeContext),
     .init           = init,
-
-    .inputs  = (const AVFilterPad[])  {{ .name     = "default",
-                                   .type           = AVMEDIA_TYPE_AUDIO,
-                                   .filter_frame   = filter_frame,
-                                   .min_perms      = AV_PERM_READ|AV_PERM_WRITE},
-                                 { .name = NULL}},
-
-    .outputs = (const AVFilterPad[])  {{ .name     = "default",
-                                   .type           = AVMEDIA_TYPE_AUDIO, },
-                                 { .name = NULL}},
+    .inputs         = volume_inputs,
+    .outputs        = volume_outputs,
 };

libavfilter/af_volumedetect.c

@@ -131,6 +131,25 @@ static void uninit(AVFilterContext *ctx)
     print_stats(ctx);
 }
 
+static const AVFilterPad volumedetect_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = filter_frame,
+        .min_perms        = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad volumedetect_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_volumedetect = {
     .name          = "volumedetect",
     .description   = NULL_IF_CONFIG_SMALL("Detect audio volume."),
@@ -138,18 +157,6 @@ AVFilter avfilter_af_volumedetect = {
     .priv_size     = sizeof(VolDetectContext),
     .query_formats = query_formats,
     .uninit        = uninit,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .get_audio_buffer = ff_null_get_audio_buffer,
-          .filter_frame     = filter_frame,
-          .min_perms        = AV_PERM_READ, },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name = "default",
-          .type = AVMEDIA_TYPE_AUDIO, },
-        { .name = NULL }
-    },
+    .inputs        = volumedetect_inputs,
+    .outputs       = volumedetect_outputs,
 };

libavfilter/asrc_aevalsrc.c

@@ -242,6 +242,16 @@ static int request_frame(AVFilterLink *outlink)
     return 0;
 }
 
+static const AVFilterPad aevalsrc_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_asrc_aevalsrc = {
     .name        = "aevalsrc",
     .description = NULL_IF_CONFIG_SMALL("Generate an audio signal generated by an expression."),
@@ -250,13 +260,7 @@ AVFilter avfilter_asrc_aevalsrc = {
     .init        = init,
     .uninit      = uninit,
     .priv_size   = sizeof(EvalContext),
-
-    .inputs      = (const AVFilterPad[]) {{ .name = NULL}},
-
-    .outputs     = (const AVFilterPad[]) {{ .name = "default",
-                                      .type = AVMEDIA_TYPE_AUDIO,
-                                      .config_props = config_props,
-                                      .request_frame = request_frame, },
-                                    { .name = NULL}},
-    .priv_class = &aevalsrc_class,
+    .inputs      = NULL,
+    .outputs     = aevalsrc_outputs,
+    .priv_class  = &aevalsrc_class,
 };

libavfilter/asrc_flite.c

@@ -268,6 +268,16 @@ static int request_frame(AVFilterLink *outlink)
     return ff_filter_frame(outlink, samplesref);
 }
 
+static const AVFilterPad flite_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .config_props  = config_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_asrc_flite = {
     .name        = "flite",
     .description = NULL_IF_CONFIG_SMALL("Synthesize voice from text using libflite."),
@@ -275,18 +285,7 @@ AVFilter avfilter_asrc_flite = {
     .init        = init,
     .uninit      = uninit,
     .priv_size   = sizeof(FliteContext),
-
-    .inputs = (const AVFilterPad[]) {{ .name = NULL}},
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name = "default",
-            .type = AVMEDIA_TYPE_AUDIO,
-            .config_props = config_props,
-            .request_frame = request_frame,
-        },
-        { .name = NULL }
-    },
-
-    .priv_class = &flite_class,
+    .inputs      = NULL,
+    .outputs     = flite_outputs,
+    .priv_class  = &flite_class,
 };

libavfilter/avf_concat.c

@@ -445,7 +445,7 @@ AVFilter avfilter_avf_concat = {
     .uninit        = uninit,
     .query_formats = query_formats,
     .priv_size     = sizeof(ConcatContext),
-    .inputs        = (const AVFilterPad[]) { { .name = NULL } },
-    .outputs       = (const AVFilterPad[]) { { .name = NULL } },
+    .inputs        = NULL,
+    .outputs       = NULL,
     .priv_class    = &concat_class,
 };

libavfilter/avf_showspectrum.c

@@ -298,6 +298,26 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
     return 0;
 }
 
+static const AVFilterPad showspectrum_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad showspectrum_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_avf_showspectrum = {
     .name           = "showspectrum",
     .description    = NULL_IF_CONFIG_SMALL("Convert input audio to a spectrum video output."),
@@ -305,26 +325,7 @@ AVFilter avfilter_avf_showspectrum = {
     .uninit         = uninit,
     .query_formats  = query_formats,
     .priv_size      = sizeof(ShowSpectrumContext),
-
-    .inputs  = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_AUDIO,
-            .filter_frame   = filter_frame,
-            .min_perms      = AV_PERM_READ,
-        },
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_VIDEO,
-            .config_props   = config_output,
-            .request_frame  = request_frame,
-        },
-        { .name = NULL }
-    },
-
-    .priv_class = &showspectrum_class,
+    .inputs         = showspectrum_inputs,
+    .outputs        = showspectrum_outputs,
+    .priv_class     = &showspectrum_class,
 };

libavfilter/avf_showwaves.c

@@ -228,6 +228,26 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
     return 0;
 }
 
+static const AVFilterPad showwaves_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad showwaves_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_avf_showwaves = {
     .name           = "showwaves",
     .description    = NULL_IF_CONFIG_SMALL("Convert input audio to a video output."),
@@ -235,26 +255,7 @@ AVFilter avfilter_avf_showwaves = {
     .uninit         = uninit,
     .query_formats  = query_formats,
     .priv_size      = sizeof(ShowWavesContext),
-
-    .inputs  = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_AUDIO,
-            .filter_frame   = filter_frame,
-            .min_perms      = AV_PERM_READ,
-        },
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name           = "default",
-            .type           = AVMEDIA_TYPE_VIDEO,
-            .config_props   = config_output,
-            .request_frame  = request_frame,
-        },
-        { .name = NULL }
-    },
-
-    .priv_class = &showwaves_class,
+    .inputs         = showwaves_inputs,
+    .outputs        = showwaves_outputs,
+    .priv_class     = &showwaves_class,
 };

libavfilter/f_ebur128.c

@@ -728,6 +728,16 @@ static av_cold void uninit(AVFilterContext *ctx)
     avfilter_unref_bufferp(&ebur128->outpicref);
 }
 
+static const AVFilterPad ebur128_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_ebur128 = {
     .name          = "ebur128",
     .description   = NULL_IF_CONFIG_SMALL("EBU R128 scanner."),
@@ -735,13 +745,6 @@ AVFilter avfilter_af_ebur128 = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .get_audio_buffer = ff_null_get_audio_buffer,
-          .filter_frame     = filter_frame, },
-        { .name = NULL }
-    },
-    .outputs = NULL,
+    .inputs        = ebur128_inputs,
+    .outputs       = NULL,
 };

libavfilter/f_sendcmd.c

@@ -518,6 +518,25 @@ end:
 
 #if CONFIG_SENDCMD_FILTER
 
+static const AVFilterPad sendcmd_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = process_frame,
+        .end_frame        = ff_null_end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad sendcmd_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_sendcmd = {
     .name      = "sendcmd",
     .description = NULL_IF_CONFIG_SMALL("Send commands to filters."),
@@ -525,30 +544,32 @@ AVFilter avfilter_vf_sendcmd = {
     .init = init,
     .uninit = uninit,
     .priv_size = sizeof(SendCmdContext),
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .get_video_buffer = ff_null_get_video_buffer,
-            .start_frame      = process_frame,
-            .end_frame        = ff_null_end_frame,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-        },
-        { .name = NULL }
-    },
+    .inputs    = sendcmd_inputs,
+    .outputs   = sendcmd_outputs,
 };
 
 #endif
 
 #if CONFIG_ASENDCMD_FILTER
 
+static const AVFilterPad asendcmd_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = process_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad asendcmd_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_asendcmd = {
     .name      = "asendcmd",
     .description = NULL_IF_CONFIG_SMALL("Send commands to filters."),
@@ -556,23 +577,8 @@ AVFilter avfilter_af_asendcmd = {
     .init = init,
     .uninit = uninit,
     .priv_size = sizeof(SendCmdContext),
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_AUDIO,
-            .get_audio_buffer = ff_null_get_audio_buffer,
-            .filter_frame     = process_frame,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_AUDIO,
-        },
-        { .name = NULL }
-    },
+    .inputs    = asendcmd_inputs,
+    .outputs   = asendcmd_outputs,
 };
 
 #endif

libavfilter/f_setpts.c

@@ -183,31 +183,33 @@ static av_cold void uninit(AVFilterContext *ctx)
 }
 
 #if CONFIG_ASETPTS_FILTER
+static const AVFilterPad avfilter_af_asetpts_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .config_props     = config_input,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_af_asetpts_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_AUDIO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_asetpts = {
     .name      = "asetpts",
     .description = NULL_IF_CONFIG_SMALL("Set PTS for the output audio frame."),
     .init      = init,
     .uninit    = uninit,
-
     .priv_size = sizeof(SetPTSContext),
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_AUDIO,
-            .get_audio_buffer = ff_null_get_audio_buffer,
-            .config_props     = config_input,
-            .filter_frame     = filter_frame,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_AUDIO,
-        },
-        { .name = NULL }
-    },
+    .inputs    = avfilter_af_asetpts_inputs,
+    .outputs   = avfilter_af_asetpts_outputs,
 };
 #endif /* CONFIG_ASETPTS_FILTER */
 

libavfilter/f_settb.c

@@ -152,25 +152,32 @@ AVFilter avfilter_vf_settb = {
 #endif
 
 #if CONFIG_ASETTB_FILTER
+static const AVFilterPad avfilter_af_asettb_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_af_asettb_outputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_AUDIO,
+        .config_props = config_output_props,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_af_asettb = {
     .name      = "asettb",
     .description = NULL_IF_CONFIG_SMALL("Set timebase for the audio output link."),
     .init      = init,
 
     .priv_size = sizeof(SetTBContext),
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_AUDIO,
-          .get_audio_buffer = ff_null_get_audio_buffer,
-          .filter_frame     = filter_frame, },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name            = "default",
-          .type            = AVMEDIA_TYPE_AUDIO,
-          .config_props    = config_output_props, },
-        { .name = NULL}
-    },
+    .inputs    = avfilter_af_asettb_inputs,
+    .outputs   = avfilter_af_asettb_outputs,
 };
 #endif

libavfilter/sink_buffer.c

@@ -234,6 +234,16 @@ static int vsink_query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad ffbuffersink_inputs[] = {
+    {
+        .name      = "default",
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .end_frame = end_frame,
+        .min_perms = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_vsink_ffbuffersink = {
     .name      = "ffbuffersink",
     .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."),
@@ -242,13 +252,18 @@ AVFilter avfilter_vsink_ffbuffersink = {
     .uninit    = vsink_uninit,
 
     .query_formats = vsink_query_formats,
+    .inputs        = ffbuffersink_inputs,
+    .outputs       = NULL,
+};
 
-    .inputs    = (const AVFilterPad[]) {{ .name    = "default",
-                                    .type          = AVMEDIA_TYPE_VIDEO,
-                                    .end_frame     = end_frame,
-                                    .min_perms     = AV_PERM_READ | AV_PERM_PRESERVE, },
-                                  { .name = NULL }},
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+static const AVFilterPad buffersink_inputs[] = {
+    {
+        .name      = "default",
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .end_frame = end_frame,
+        .min_perms = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL },
 };
 
 AVFilter avfilter_vsink_buffersink = {
@@ -259,13 +274,8 @@ AVFilter avfilter_vsink_buffersink = {
     .uninit    = vsink_uninit,
 
     .query_formats = vsink_query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name    = "default",
-                                    .type          = AVMEDIA_TYPE_VIDEO,
-                                    .end_frame     = end_frame,
-                                    .min_perms     = AV_PERM_READ | AV_PERM_PRESERVE, },
-                                  { .name = NULL }},
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+    .inputs        = buffersink_inputs,
+    .outputs       = NULL,
 };
 
 static int filter_frame(AVFilterLink *link, AVFilterBufferRef *samplesref)
@@ -328,6 +338,16 @@ static int asink_query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad ffabuffersink_inputs[] = {
+    {
+        .name           = "default",
+        .type           = AVMEDIA_TYPE_AUDIO,
+        .filter_frame   = filter_frame,
+        .min_perms      = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_asink_ffabuffersink = {
     .name      = "ffabuffersink",
     .description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."),
@@ -335,13 +355,18 @@ AVFilter avfilter_asink_ffabuffersink = {
     .uninit    = asink_uninit,
     .priv_size = sizeof(BufferSinkContext),
     .query_formats = asink_query_formats,
+    .inputs        = ffabuffersink_inputs,
+    .outputs       = NULL,
+};
 
-    .inputs    = (const AVFilterPad[]) {{ .name     = "default",
-                                    .type           = AVMEDIA_TYPE_AUDIO,
-                                    .filter_frame   = filter_frame,
-                                    .min_perms      = AV_PERM_READ | AV_PERM_PRESERVE, },
-                                  { .name = NULL }},
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+static const AVFilterPad abuffersink_inputs[] = {
+    {
+        .name           = "default",
+        .type           = AVMEDIA_TYPE_AUDIO,
+        .filter_frame   = filter_frame,
+        .min_perms      = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL },
 };
 
 AVFilter avfilter_asink_abuffersink = {
@@ -351,13 +376,8 @@ AVFilter avfilter_asink_abuffersink = {
     .uninit    = asink_uninit,
     .priv_size = sizeof(BufferSinkContext),
     .query_formats = asink_query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name     = "default",
-                                    .type           = AVMEDIA_TYPE_AUDIO,
-                                    .filter_frame   = filter_frame,
-                                    .min_perms      = AV_PERM_READ | AV_PERM_PRESERVE, },
-                                  { .name = NULL }},
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+    .inputs        = abuffersink_inputs,
+    .outputs       = NULL,
 };
 
 /* Libav compatibility API */

libavfilter/src_movie.c

@@ -612,7 +612,7 @@ AVFilter avfilter_avsrc_movie = {
     .query_formats = movie_query_formats,
 
     .inputs    = NULL,
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+    .outputs   = NULL,
     .priv_class = &movie_class,
 };
 
@@ -636,8 +636,8 @@ AVFilter avfilter_avsrc_amovie = {
     .uninit        = movie_uninit,
     .query_formats = movie_query_formats,
 
-    .inputs    = (const AVFilterPad[]) {{ .name = NULL }},
-    .outputs   = (const AVFilterPad[]) {{ .name = NULL }},
+    .inputs     = NULL,
+    .outputs    = NULL,
     .priv_class = &amovie_class,
 };
 

libavfilter/vf_alphaextract.c

@@ -94,24 +94,31 @@ static int draw_slice(AVFilterLink *inlink, int y0, int h, int slice_dir)
     return ff_draw_slice(inlink->dst->outputs[0], y0, h, slice_dir);
 }
 
+static const AVFilterPad alphaextract_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_input,
+        .draw_slice   = draw_slice,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad alphaextract_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_alphaextract = {
     .name           = "alphaextract",
     .description    = NULL_IF_CONFIG_SMALL("Extract an alpha channel as a "
                       "grayscale image component."),
     .priv_size      = sizeof(AlphaExtractContext),
     .query_formats  = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .config_props     = config_input,
-          .draw_slice       = draw_slice,
-          .min_perms        = AV_PERM_READ },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-      { .name               = "default",
-        .type               = AVMEDIA_TYPE_VIDEO, },
-      { .name = NULL }
-    },
+    .inputs         = alphaextract_inputs,
+    .outputs        = alphaextract_outputs,
 };

libavfilter/vf_alphamerge.c

@@ -176,6 +176,37 @@ static int request_frame(AVFilterLink *outlink)
     return 0;
 }
 
+static const AVFilterPad alphamerge_inputs[] = {
+    {
+        .name             = "main",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .config_props     = config_input_main,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = start_frame,
+        .draw_slice       = draw_slice,
+        .end_frame        = end_frame,
+        .min_perms        = AV_PERM_READ | AV_PERM_WRITE | AV_PERM_PRESERVE,
+    },{
+        .name             = "alpha",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .start_frame      = start_frame,
+        .draw_slice       = draw_slice,
+        .end_frame        = end_frame,
+        .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL }
+};
+
+static const AVFilterPad alphamerge_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_output,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_alphamerge = {
     .name           = "alphamerge",
     .description    = NULL_IF_CONFIG_SMALL("Copy the luma value of the second "
@@ -183,29 +214,6 @@ AVFilter avfilter_vf_alphamerge = {
     .uninit         = uninit,
     .priv_size      = sizeof(AlphaMergeContext),
     .query_formats  = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name             = "main",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .config_props     = config_input_main,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .start_frame      = start_frame,
-          .draw_slice       = draw_slice,
-          .end_frame        = end_frame,
-          .min_perms        = AV_PERM_READ | AV_PERM_WRITE | AV_PERM_PRESERVE },
-        { .name             = "alpha",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .start_frame      = start_frame,
-          .draw_slice       = draw_slice,
-          .end_frame        = end_frame,
-          .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-      { .name               = "default",
-        .type               = AVMEDIA_TYPE_VIDEO,
-        .config_props       = config_output,
-        .request_frame      = request_frame },
-      { .name = NULL }
-    },
+    .inputs         = alphamerge_inputs,
+    .outputs        = alphamerge_outputs,
 };

libavfilter/vf_ass.c

@@ -200,6 +200,28 @@ static int end_frame(AVFilterLink *inlink)
     return ff_end_frame(outlink);
 }
 
+static const AVFilterPad ass_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = ff_null_start_frame,
+        .draw_slice       = null_draw_slice,
+        .end_frame        = end_frame,
+        .config_props     = config_input,
+        .min_perms        = AV_PERM_WRITE | AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad ass_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_ass = {
     .name          = "ass",
     .description   = NULL_IF_CONFIG_SMALL("Render subtitles onto input video using the libass library."),
@@ -207,22 +229,7 @@ AVFilter avfilter_vf_ass = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .start_frame      = ff_null_start_frame,
-          .draw_slice       = null_draw_slice,
-          .end_frame        = end_frame,
-          .config_props     = config_input,
-          .min_perms        = AV_PERM_WRITE | AV_PERM_READ },
-        { .name = NULL}
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO, },
-        { .name = NULL}
-    },
-    .priv_class = &ass_class,
+    .inputs        = ass_inputs,
+    .outputs       = ass_outputs,
+    .priv_class    = &ass_class,
 };

libavfilter/vf_bbox.c

@@ -89,26 +89,32 @@ static int end_frame(AVFilterLink *inlink)
     return ff_end_frame(inlink->dst->outputs[0]);
 }
 
+static const AVFilterPad bbox_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = ff_null_start_frame,
+        .end_frame        = end_frame,
+        .min_perms        = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad bbox_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_bbox = {
     .name          = "bbox",
     .description   = NULL_IF_CONFIG_SMALL("Compute bounding box for each frame."),
     .priv_size     = sizeof(BBoxContext),
     .query_formats = query_formats,
     .init          = init,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .start_frame      = ff_null_start_frame,
-          .end_frame        = end_frame,
-          .min_perms        = AV_PERM_READ, },
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO },
-        { .name = NULL }
-    },
+    .inputs        = bbox_inputs,
+    .outputs       = bbox_outputs,
 };

libavfilter/vf_blackdetect.c

@@ -197,29 +197,35 @@ static int end_frame(AVFilterLink *inlink)
     return ff_end_frame(inlink->dst->outputs[0]);
 }
 
+static const AVFilterPad blackdetect_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .config_props     = config_input,
+        .draw_slice       = draw_slice,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = ff_null_start_frame,
+        .end_frame        = end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad blackdetect_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_blackdetect = {
     .name          = "blackdetect",
     .description   = NULL_IF_CONFIG_SMALL("Detect video intervals that are (almost) black."),
     .priv_size     = sizeof(BlackDetectContext),
     .init          = init,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .config_props     = config_input,
-          .draw_slice       = draw_slice,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .start_frame      = ff_null_start_frame,
-          .end_frame        = end_frame, },
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .request_frame    = request_frame, },
-        { .name = NULL }
-    },
-    .priv_class = &blackdetect_class,
+    .inputs        = blackdetect_inputs,
+    .outputs       = blackdetect_outputs,
+    .priv_class    = &blackdetect_class,
 };

libavfilter/vf_colormatrix.c

@@ -369,6 +369,28 @@ static int end_frame(AVFilterLink *link)
 
 static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { return 0; }
 
+static const AVFilterPad colormatrix_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .config_props     = config_input,
+        .min_perms        = AV_PERM_READ | AV_PERM_WRITE,
+        .start_frame      = start_frame,
+        .get_video_buffer = get_video_buffer,
+        .draw_slice       = null_draw_slice,
+        .end_frame        = end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad colormatrix_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_colormatrix = {
     .name          = "colormatrix",
     .description   = NULL_IF_CONFIG_SMALL("Color matrix conversion"),
@@ -376,18 +398,6 @@ AVFilter avfilter_vf_colormatrix = {
     .priv_size     = sizeof(ColorMatrixContext),
     .init          = init,
     .query_formats = query_formats,
-
-    .inputs    = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO,
-                                    .config_props     = config_input,
-                                    .min_perms        = AV_PERM_READ | AV_PERM_WRITE,
-                                    .start_frame      = start_frame,
-                                    .get_video_buffer = get_video_buffer,
-                                    .draw_slice       = null_draw_slice,
-                                    .end_frame        = end_frame, },
-                                  { .name = NULL }},
-
-    .outputs   = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL }},
+    .inputs        = colormatrix_inputs,
+    .outputs       = colormatrix_outputs,
 };

libavfilter/vf_decimate.c

@@ -235,6 +235,29 @@ static int request_frame(AVFilterLink *outlink)
     return ret;
 }
 
+static const AVFilterPad decimate_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .config_props     = config_input,
+        .start_frame      = start_frame,
+        .draw_slice       = draw_slice,
+        .end_frame        = end_frame,
+        .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL }
+};
+
+static const AVFilterPad decimate_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_decimate = {
     .name        = "decimate",
     .description = NULL_IF_CONFIG_SMALL("Remove near-duplicate frames."),
@@ -243,26 +266,6 @@ AVFilter avfilter_vf_decimate = {
 
     .priv_size = sizeof(DecimateContext),
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .get_video_buffer = ff_null_get_video_buffer,
-            .config_props     = config_input,
-            .start_frame      = start_frame,
-            .draw_slice       = draw_slice,
-            .end_frame        = end_frame,
-            .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name          = "default",
-            .type          = AVMEDIA_TYPE_VIDEO,
-            .request_frame = request_frame,
-        },
-        { .name = NULL }
-    },
+    .inputs        = decimate_inputs,
+    .outputs       = decimate_outputs,
 };

libavfilter/vf_deshake.c

@@ -538,6 +538,26 @@ static int draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
     return 0;
 }
 
+static const AVFilterPad deshake_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .draw_slice   = draw_slice,
+        .end_frame    = end_frame,
+        .config_props = config_props,
+        .min_perms    = AV_PERM_READ | AV_PERM_PRESERVE,
+    },
+    { NULL }
+};
+
+static const AVFilterPad deshake_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_deshake = {
     .name      = "deshake",
     .description = NULL_IF_CONFIG_SMALL("Stabilize shaky video."),
@@ -547,16 +567,6 @@ AVFilter avfilter_vf_deshake = {
     .init = init,
     .uninit = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name       = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO,
-                                    .draw_slice       = draw_slice,
-                                    .end_frame        = end_frame,
-                                    .config_props     = config_props,
-                                    .min_perms        = AV_PERM_READ | AV_PERM_PRESERVE, },
-                                  { .name = NULL}},
-
-    .outputs   = (const AVFilterPad[]) {{ .name       = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL}},
+    .inputs        = deshake_inputs,
+    .outputs       = deshake_outputs,
 };

libavfilter/vf_edgedetect.c

@@ -299,6 +299,25 @@ static av_cold void uninit(AVFilterContext *ctx)
     av_freep(&edgedetect->directions);
 }
 
+static const AVFilterPad edgedetect_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_props,
+        .filter_frame = filter_frame,
+        .min_perms    = AV_PERM_READ,
+     },
+     { NULL }
+};
+
+static const AVFilterPad edgedetect_outputs[] = {
+     {
+         .name = "default",
+         .type = AVMEDIA_TYPE_VIDEO,
+     },
+     { NULL }
+};
+
 AVFilter avfilter_vf_edgedetect = {
     .name          = "edgedetect",
     .description   = NULL_IF_CONFIG_SMALL("Detect and draw edge."),
@@ -306,22 +325,6 @@ AVFilter avfilter_vf_edgedetect = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-       {
-           .name             = "default",
-           .type             = AVMEDIA_TYPE_VIDEO,
-           .config_props     = config_props,
-           .filter_frame     = filter_frame,
-           .min_perms        = AV_PERM_READ
-        },
-        { .name = NULL }
-    },
-    .outputs   = (const AVFilterPad[]) {
-        {
-            .name            = "default",
-            .type            = AVMEDIA_TYPE_VIDEO,
-        },
-        { .name = NULL }
-    },
+    .inputs        = edgedetect_inputs,
+    .outputs       = edgedetect_outputs,
 };

libavfilter/vf_framestep.c

@@ -111,30 +111,33 @@ static int request_frame(AVFilterLink *outlink)
     return ret;
 }
 
+static const AVFilterPad framestep_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = start_frame,
+        .draw_slice       = draw_slice,
+        .end_frame        = end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad framestep_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_output_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_framestep = {
     .name      = "framestep",
     .description = NULL_IF_CONFIG_SMALL("Select one frame every N frames."),
     .init      = init,
     .priv_size = sizeof(FrameStepContext),
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .get_video_buffer = ff_null_get_video_buffer,
-            .start_frame      = start_frame,
-            .draw_slice       = draw_slice,
-            .end_frame        = end_frame,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .config_props     = config_output_props,
-            .request_frame    = request_frame,
-        },
-        { .name = NULL }
-    },
+    .inputs    = framestep_inputs,
+    .outputs   = framestep_outputs,
 };

libavfilter/vf_hue.c

@@ -396,6 +396,26 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
         return AVERROR(ENOSYS);
 }
 
+static const AVFilterPad hue_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .start_frame  = start_frame,
+        .draw_slice   = draw_slice,
+        .config_props = config_props,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad hue_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_hue = {
     .name        = "hue",
     .description = NULL_IF_CONFIG_SMALL("Adjust the hue and saturation of the input video."),
@@ -406,24 +426,7 @@ AVFilter avfilter_vf_hue = {
     .uninit        = uninit,
     .query_formats = query_formats,
     .process_command = process_command,
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name         = "default",
-            .type         = AVMEDIA_TYPE_VIDEO,
-            .start_frame  = start_frame,
-            .draw_slice   = draw_slice,
-            .config_props = config_props,
-            .min_perms    = AV_PERM_READ,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name         = "default",
-            .type         = AVMEDIA_TYPE_VIDEO,
-        },
-        { .name = NULL }
-    },
-    .priv_class = &hue_class,
+    .inputs          = hue_inputs,
+    .outputs         = hue_outputs,
+    .priv_class      = &hue_class,
 };

libavfilter/vf_idet.c

@@ -310,6 +310,29 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
 
 static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { return 0; }
 
+static const AVFilterPad idet_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .start_frame  = start_frame,
+        .draw_slice   = null_draw_slice,
+        .end_frame    = end_frame,
+        .min_perms    = AV_PERM_PRESERVE,
+    },
+    { NULL }
+};
+
+static const AVFilterPad idet_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .rej_perms     = AV_PERM_WRITE,
+        .poll_frame    = poll_frame,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_idet = {
     .name          = "idet",
     .description   = NULL_IF_CONFIG_SMALL("Interlace detect Filter."),
@@ -318,19 +341,6 @@ AVFilter avfilter_vf_idet = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name       = "default",
-                                          .type             = AVMEDIA_TYPE_VIDEO,
-                                          .start_frame      = start_frame,
-                                          .draw_slice       = null_draw_slice,
-                                          .end_frame        = end_frame,
-                                          .min_perms        = AV_PERM_PRESERVE },
-                                        { .name = NULL}},
-
-    .outputs   = (const AVFilterPad[]) {{ .name       = "default",
-                                          .type             = AVMEDIA_TYPE_VIDEO,
-                                          .rej_perms        = AV_PERM_WRITE,
-                                          .poll_frame       = poll_frame,
-                                          .request_frame    = request_frame, },
-                                        { .name = NULL}},
+    .inputs        = idet_inputs,
+    .outputs       = idet_outputs,
 };

libavfilter/vf_mp.c

@@ -863,6 +863,29 @@ static int end_frame(AVFilterLink *inlink)
     return 0;
 }
 
+static const AVFilterPad mp_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .start_frame  = start_frame,
+        .draw_slice   = null_draw_slice,
+        .end_frame    = end_frame,
+        .config_props = config_inprops,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad mp_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = config_outprops,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_mp = {
     .name      = "mp",
     .description = NULL_IF_CONFIG_SMALL("Apply a libmpcodecs filter to the input video."),
@@ -870,18 +893,6 @@ AVFilter avfilter_vf_mp = {
     .uninit = uninit,
     .priv_size = sizeof(MPContext),
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_VIDEO,
-                                    .start_frame     = start_frame,
-                                    .draw_slice      = null_draw_slice,
-                                    .end_frame       = end_frame,
-                                    .config_props    = config_inprops,
-                                    .min_perms       = AV_PERM_READ, },
-                                  { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_VIDEO,
-                                    .request_frame   = request_frame,
-                                    .config_props    = config_outprops, },
-                                  { .name = NULL}},
+    .inputs        = mp_inputs,
+    .outputs       = mp_outputs,
 };

libavfilter/vf_removelogo.c

@@ -535,6 +535,28 @@ static void uninit(AVFilterContext *ctx)
 
 static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { return 0; }
 
+static const AVFilterPad removelogo_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .config_props     = config_props_input,
+        .draw_slice       = null_draw_slice,
+        .start_frame      = start_frame,
+        .end_frame        = end_frame,
+        .min_perms        = AV_PERM_WRITE | AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad removelogo_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_removelogo = {
     .name          = "removelogo",
     .description   = NULL_IF_CONFIG_SMALL("Remove a TV logo based on a mask image."),
@@ -542,21 +564,6 @@ AVFilter avfilter_vf_removelogo = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .config_props     = config_props_input,
-          .draw_slice       = null_draw_slice,
-          .start_frame      = start_frame,
-          .end_frame        = end_frame,
-          .min_perms        = AV_PERM_WRITE | AV_PERM_READ },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO, },
-        { .name = NULL }
-    },
+    .inputs        = removelogo_inputs,
+    .outputs       = removelogo_outputs,
 };

libavfilter/vf_setfield.c

@@ -83,23 +83,30 @@ static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
     return ff_start_frame(inlink->dst->outputs[0], outpicref);
 }
 
+static const AVFilterPad setfield_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = start_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad setfield_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_setfield = {
     .name      = "setfield",
     .description = NULL_IF_CONFIG_SMALL("Force field for the output video frame."),
     .init      = init,
 
     .priv_size = sizeof(SetFieldContext),
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .get_video_buffer = ff_null_get_video_buffer,
-          .start_frame      = start_frame, },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO, },
-        { .name = NULL }
-    },
+    .inputs    = setfield_inputs,
+    .outputs   = setfield_outputs,
 };

libavfilter/vf_smartblur.c

@@ -277,6 +277,25 @@ static int end_frame(AVFilterLink *inlink)
     return ff_end_frame(outlink);
 }
 
+static const AVFilterPad smartblur_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .end_frame    = end_frame,
+        .config_props = config_props,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad smartblur_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_smartblur = {
     .name        = "smartblur",
     .description = NULL_IF_CONFIG_SMALL("Blur the input video without impacting the outlines."),
@@ -286,22 +305,6 @@ AVFilter avfilter_vf_smartblur = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        {
-            .name         = "default",
-            .type         = AVMEDIA_TYPE_VIDEO,
-            .end_frame    = end_frame,
-            .config_props = config_props,
-            .min_perms    = AV_PERM_READ,
-        },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name         = "default",
-            .type         = AVMEDIA_TYPE_VIDEO,
-        },
-        { .name = NULL }
-    }
+    .inputs        = smartblur_inputs,
+    .outputs       = smartblur_outputs,
 };

libavfilter/vf_super2xsai.c

@@ -318,25 +318,32 @@ static int end_frame(AVFilterLink *inlink)
     return ff_end_frame(outlink);
 }
 
+static const AVFilterPad super2xsai_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_input,
+        .draw_slice   = null_draw_slice,
+        .end_frame    = end_frame,
+        .min_perms    = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad super2xsai_outputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_output,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_super2xsai = {
     .name        = "super2xsai",
     .description = NULL_IF_CONFIG_SMALL("Scale the input by 2x using the Super2xSaI pixel art algorithm."),
     .priv_size   = sizeof(Super2xSaIContext),
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .config_props     = config_input,
-          .draw_slice       = null_draw_slice,
-          .end_frame        = end_frame,
-          .min_perms        = AV_PERM_READ },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .config_props     = config_output },
-        { .name = NULL }
-    },
+    .inputs        = super2xsai_inputs,
+    .outputs       = super2xsai_outputs,
 };

libavfilter/vf_swapuv.c

@@ -74,22 +74,29 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad swapuv_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = get_video_buffer,
+        .start_frame      = start_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad swapuv_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_swapuv = {
     .name      = "swapuv",
     .description = NULL_IF_CONFIG_SMALL("Swap U and V components."),
     .priv_size = 0,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO,
-          .get_video_buffer = get_video_buffer,
-          .start_frame      = start_frame, },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name             = "default",
-          .type             = AVMEDIA_TYPE_VIDEO, },
-        { .name             = NULL }
-    },
+    .inputs        = swapuv_inputs,
+    .outputs       = swapuv_outputs,
 };

libavfilter/vf_thumbnail.c

@@ -219,6 +219,29 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad thumbnail_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .min_perms        = AV_PERM_PRESERVE,
+        .start_frame      = null_start_frame,
+        .draw_slice       = draw_slice,
+        .end_frame        = end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad thumbnail_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .poll_frame    = poll_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_thumbnail = {
     .name          = "thumbnail",
     .description   = NULL_IF_CONFIG_SMALL("Select the most representative frame in a given sequence of consecutive frames."),
@@ -226,21 +249,6 @@ AVFilter avfilter_vf_thumbnail = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-    .inputs        = (const AVFilterPad[]) {
-        {   .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .get_video_buffer = ff_null_get_video_buffer,
-            .min_perms        = AV_PERM_PRESERVE,
-            .start_frame      = null_start_frame,
-            .draw_slice       = draw_slice,
-            .end_frame        = end_frame,
-        },{ .name = NULL }
-    },
-    .outputs       = (const AVFilterPad[]) {
-        {   .name             = "default",
-            .type             = AVMEDIA_TYPE_VIDEO,
-            .request_frame    = request_frame,
-            .poll_frame       = poll_frame,
-        },{ .name = NULL }
-    },
+    .inputs        = thumbnail_inputs,
+    .outputs       = thumbnail_outputs,
 };

libavfilter/vf_tile.c

@@ -240,6 +240,27 @@ static int request_frame(AVFilterLink *outlink)
     return 0;
 }
 
+static const AVFilterPad tile_inputs[] = {
+    {
+        .name        = "default",
+        .type        = AVMEDIA_TYPE_VIDEO,
+        .start_frame = start_frame,
+        .draw_slice  = draw_slice,
+        .end_frame   = end_frame,
+        .min_perms   = AV_PERM_READ,
+    },
+    { NULL }
+};
+
+static const AVFilterPad tile_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
 
 AVFilter avfilter_vf_tile = {
     .name          = "tile",
@@ -247,21 +268,7 @@ AVFilter avfilter_vf_tile = {
     .init          = init,
     .query_formats = query_formats,
     .priv_size     = sizeof(TileContext),
-    .inputs = (const AVFilterPad[]) {
-        { .name        = "default",
-          .type        = AVMEDIA_TYPE_VIDEO,
-          .start_frame = start_frame,
-          .draw_slice  = draw_slice,
-          .end_frame   = end_frame,
-          .min_perms   = AV_PERM_READ, },
-        { .name = NULL }
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name          = "default",
-          .type          = AVMEDIA_TYPE_VIDEO,
-          .config_props  = config_props,
-          .request_frame = request_frame },
-        { .name = NULL }
-    },
-    .priv_class = &tile_class,
+    .inputs        = tile_inputs,
+    .outputs       = tile_outputs,
+    .priv_class    = &tile_class,
 };

libavfilter/vf_tinterlace.c

@@ -351,6 +351,27 @@ static int request_frame(AVFilterLink *outlink)
 
 static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { return 0; }
 
+static const AVFilterPad tinterlace_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .start_frame  = start_frame,
+        .draw_slice   = null_draw_slice,
+        .end_frame    = end_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad tinterlace_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_out_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_tinterlace = {
     .name          = "tinterlace",
     .description   = NULL_IF_CONFIG_SMALL("Perform temporal field interlacing."),
@@ -358,20 +379,6 @@ AVFilter avfilter_vf_tinterlace = {
     .init          = init,
     .uninit        = uninit,
     .query_formats = query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name          = "default",
-          .type          = AVMEDIA_TYPE_VIDEO,
-          .start_frame   = start_frame,
-          .draw_slice    = null_draw_slice,
-          .end_frame     = end_frame, },
-        { .name = NULL}
-    },
-    .outputs = (const AVFilterPad[]) {
-        { .name          = "default",
-          .type          = AVMEDIA_TYPE_VIDEO,
-          .config_props  = config_out_props,
-          .request_frame = request_frame },
-        { .name = NULL}
-    },
+    .inputs        = tinterlace_inputs,
+    .outputs       = tinterlace_outputs,
 };

libavfilter/vsrc_cellauto.c

@@ -335,6 +335,16 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad cellauto_outputs[] = {
+    {
+        .name            = "default",
+        .type            = AVMEDIA_TYPE_VIDEO,
+        .request_frame   = request_frame,
+        .config_props    = config_props,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vsrc_cellauto = {
     .name        = "cellauto",
     .description = NULL_IF_CONFIG_SMALL("Create pattern generated by an elementary cellular automaton."),
@@ -342,16 +352,7 @@ AVFilter avfilter_vsrc_cellauto = {
     .init      = init,
     .uninit    = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name = NULL}
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name            = "default",
-          .type            = AVMEDIA_TYPE_VIDEO,
-          .request_frame   = request_frame,
-          .config_props    = config_props },
-        { .name = NULL}
-    },
-    .priv_class = &cellauto_class,
+    .inputs        = NULL,
+    .outputs       = cellauto_outputs,
+    .priv_class    = &cellauto_class,
 };

libavfilter/vsrc_life.c

@@ -464,6 +464,16 @@ static int query_formats(AVFilterContext *ctx)
     return 0;
 }
 
+static const AVFilterPad life_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = config_props,
+    },
+    { NULL}
+};
+
 AVFilter avfilter_vsrc_life = {
     .name        = "life",
     .description = NULL_IF_CONFIG_SMALL("Create life."),
@@ -471,16 +481,7 @@ AVFilter avfilter_vsrc_life = {
     .init      = init,
     .uninit    = uninit,
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {
-        { .name = NULL}
-    },
-    .outputs   = (const AVFilterPad[]) {
-        { .name            = "default",
-          .type            = AVMEDIA_TYPE_VIDEO,
-          .request_frame   = request_frame,
-          .config_props    = config_props },
-        { .name = NULL}
-    },
-    .priv_class = &life_class,
+    .inputs        = NULL,
+    .outputs       = life_outputs,
+    .priv_class    = &life_class,
 };

libavfilter/vsrc_mandelbrot.c

@@ -396,6 +396,16 @@ static int request_frame(AVFilterLink *link)
     return 0;
 }
 
+static const AVFilterPad mandelbrot_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = config_props,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_vsrc_mandelbrot = {
     .name        = "mandelbrot",
     .description = NULL_IF_CONFIG_SMALL("Render a Mandelbrot fractal."),
@@ -405,12 +415,6 @@ AVFilter avfilter_vsrc_mandelbrot = {
     .uninit    = uninit,
 
     .query_formats = query_formats,
-
-    .inputs    = (const AVFilterPad[]) {{ .name = NULL}},
-
-    .outputs   = (const AVFilterPad[]) {{ .name      = "default",
-                                    .type            = AVMEDIA_TYPE_VIDEO,
-                                    .request_frame   = request_frame,
-                                    .config_props    = config_props },
-                                  { .name = NULL}},
+    .inputs        = NULL,
+    .outputs       = mandelbrot_outputs,
 };

libavfilter/vsrc_mptestsrc.c

@@ -364,6 +364,16 @@ static int request_frame(AVFilterLink *outlink)
     return 0;
 }
 
+static const AVFilterPad mptestsrc_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = config_props,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vsrc_mptestsrc = {
     .name      = "mptestsrc",
     .description = NULL_IF_CONFIG_SMALL("Generate various test pattern."),
@@ -372,11 +382,6 @@ AVFilter avfilter_vsrc_mptestsrc = {
 
     .query_formats   = query_formats,
 
-    .inputs    = (const AVFilterPad[]) {{ .name = NULL}},
-
-    .outputs   = (const AVFilterPad[]) {{ .name = "default",
-                                    .type = AVMEDIA_TYPE_VIDEO,
-                                    .request_frame = request_frame,
-                                    .config_props  = config_props, },
-                                  { .name = NULL }},
+    .inputs         = NULL,
+    .outputs        = mptestsrc_outputs,
 };

libavfilter/vsrc_testsrc.c

@@ -256,6 +256,16 @@ static int color_config_props(AVFilterLink *inlink)
     return 0;
 }
 
+static const AVFilterPad color_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = color_config_props,
+    },
+    {  NULL }
+};
+
 AVFilter avfilter_vsrc_color = {
     .name        = "color",
     .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
@@ -265,22 +275,9 @@ AVFilter avfilter_vsrc_color = {
     .uninit    = uninit,
 
     .query_formats = color_query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name            = "default",
-            .type            = AVMEDIA_TYPE_VIDEO,
-            .request_frame   = request_frame,
-            .config_props    = color_config_props,
-        },
-        { .name = NULL }
-    },
-
-    .priv_class = &color_class,
+    .inputs        = NULL,
+    .outputs       = color_outputs,
+    .priv_class    = &color_class,
 };
 
 #endif /* CONFIG_COLOR_FILTER */
@@ -301,19 +298,24 @@ static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args)
     return init(ctx, args);
 }
 
+static const AVFilterPad nullsrc_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = config_props,
+    },
+    { NULL },
+};
+
 AVFilter avfilter_vsrc_nullsrc = {
     .name        = "nullsrc",
     .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
     .init       = nullsrc_init,
     .uninit     = uninit,
     .priv_size  = sizeof(TestSourceContext),
-
-    .inputs    = (const AVFilterPad[]) {{ .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name = "default",
-                                    .type = AVMEDIA_TYPE_VIDEO,
-                                    .request_frame = request_frame,
-                                    .config_props  = config_props, },
-                                  { .name = NULL}},
+    .inputs     = NULL,
+    .outputs    = nullsrc_outputs,
     .priv_class = &nullsrc_class,
 };
 
@@ -767,6 +769,16 @@ static int smptebars_config_props(AVFilterLink *outlink)
     return config_props(outlink);
 }
 
+static const AVFilterPad smptebars_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+        .config_props  = smptebars_config_props,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vsrc_smptebars = {
     .name      = "smptebars",
     .description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
@@ -775,22 +787,9 @@ AVFilter avfilter_vsrc_smptebars = {
     .uninit    = uninit,
 
     .query_formats = smptebars_query_formats,
-
-    .inputs = (const AVFilterPad[]) {
-        { .name = NULL }
-    },
-
-    .outputs = (const AVFilterPad[]) {
-        {
-            .name = "default",
-            .type = AVMEDIA_TYPE_VIDEO,
-            .request_frame = request_frame,
-            .config_props  = smptebars_config_props,
-        },
-        { .name = NULL }
-    },
-
-    .priv_class = &smptebars_class,
+    .inputs        = NULL,
+    .outputs       = smptebars_outputs,
+    .priv_class    = &smptebars_class,
 };
 
 #endif  /* CONFIG_SMPTEBARS_FILTER */