lavfi: stop using -1 instead use AV_PIX_FMT_NONE/AV_SAMPLE_FMT_NONE

Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavfilter/avf_showspectrum.c

@@ -89,8 +89,8 @@ static int query_formats(AVFilterContext *ctx)
     AVFilterChannelLayouts *layouts = NULL;
     AVFilterLink *inlink = ctx->inputs[0];
     AVFilterLink *outlink = ctx->outputs[0];
-    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16P, -1 };
-    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGB24, -1 };
+    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_NONE };
+    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE };
 
     /* set input audio formats */
     formats = ff_make_format_list(sample_fmts);

libavfilter/avf_showwaves.c

@@ -87,8 +87,8 @@ static int query_formats(AVFilterContext *ctx)
     AVFilterChannelLayouts *layouts = NULL;
     AVFilterLink *inlink = ctx->inputs[0];
     AVFilterLink *outlink = ctx->outputs[0];
-    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
-    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, -1 };
+    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
+    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
 
     /* set input audio formats */
     formats = ff_make_format_list(sample_fmts);

libavfilter/f_ebur128.c

@@ -649,9 +649,9 @@ static int query_formats(AVFilterContext *ctx)
     AVFilterLink *inlink = ctx->inputs[0];
     AVFilterLink *outlink = ctx->outputs[0];
 
-    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_DBL, -1 };
+    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_NONE };
     static const int input_srate[] = {48000, -1}; // ITU-R BS.1770 provides coeff only for 48kHz
-    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGB24, -1 };
+    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE };
 
     /* set input audio formats */
     formats = ff_make_format_list(sample_fmts);

libavfilter/sink_buffer.c

@@ -33,7 +33,7 @@
 
 AVBufferSinkParams *av_buffersink_params_alloc(void)
 {
-    static const int pixel_fmts[] = { -1 };
+    static const int pixel_fmts[] = { AV_PIX_FMT_NONE };
     AVBufferSinkParams *params = av_malloc(sizeof(AVBufferSinkParams));
     if (!params)
         return NULL;
@@ -44,7 +44,7 @@ AVBufferSinkParams *av_buffersink_params_alloc(void)
 
 AVABufferSinkParams *av_abuffersink_params_alloc(void)
 {
-    static const int sample_fmts[] = { -1 };
+    static const int sample_fmts[] = { AV_SAMPLE_FMT_NONE };
     static const int64_t channel_layouts[] = { -1 };
     AVABufferSinkParams *params = av_malloc(sizeof(AVABufferSinkParams));