fftools/ffmpeg_filter: Remove choose_sample_fmt

Unused since 6b35a832.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

fftools/ffmpeg.h

@@ -652,7 +652,6 @@ int guess_input_channel_layout(InputStream *ist);
 
 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx,
                                     const AVCodec *codec, enum AVPixelFormat target);
-void choose_sample_fmt(AVStream *st, const AVCodec *codec);
 
 int configure_filtergraph(FilterGraph *fg);
 int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);

fftools/ffmpeg_filter.c

@@ -91,29 +91,6 @@ enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *enc_ctx,
     return target;
 }
 
-void choose_sample_fmt(AVStream *st, const AVCodec *codec)
-{
-    if (codec && codec->sample_fmts) {
-        const enum AVSampleFormat *p = codec->sample_fmts;
-        for (; *p != -1; p++) {
-            if (*p == st->codecpar->format)
-                break;
-        }
-        if (*p == -1) {
-            const AVCodecDescriptor *desc = avcodec_descriptor_get(codec->id);
-            if(desc && (desc->props & AV_CODEC_PROP_LOSSLESS) && av_get_sample_fmt_name(st->codecpar->format) > av_get_sample_fmt_name(codec->sample_fmts[0]))
-                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
-            if(av_get_sample_fmt_name(st->codecpar->format))
-            av_log(NULL, AV_LOG_WARNING,
-                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
-                   av_get_sample_fmt_name(st->codecpar->format),
-                   codec->name,
-                   av_get_sample_fmt_name(codec->sample_fmts[0]));
-            st->codecpar->format = codec->sample_fmts[0];
-        }
-    }
-}
-
 static char *choose_pix_fmts(OutputFilter *ofilter)
 {
     OutputStream *ost = ofilter->ost;