avcodec/flac: Remove unused parameter from ff_flac_is_extradata_valid()

format is write-only.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/flac.c

@@ -146,7 +146,6 @@ int ff_flac_decode_frame_header(AVCodecContext *avctx, GetBitContext *gb,
 }
 
 int ff_flac_is_extradata_valid(AVCodecContext *avctx,
-                               enum FLACExtradataFormat *format,
                                uint8_t **streaminfo_start)
 {
     if (!avctx->extradata || avctx->extradata_size < FLAC_STREAMINFO_SIZE) {
@@ -159,14 +158,12 @@ int ff_flac_is_extradata_valid(AVCodecContext *avctx,
             av_log(avctx, AV_LOG_WARNING, "extradata contains %d bytes too many.\n",
                    FLAC_STREAMINFO_SIZE-avctx->extradata_size);
         }
-        *format = FLAC_EXTRADATA_FORMAT_STREAMINFO;
         *streaminfo_start = avctx->extradata;
     } else {
         if (avctx->extradata_size < 8+FLAC_STREAMINFO_SIZE) {
             av_log(avctx, AV_LOG_ERROR, "extradata too small.\n");
             return 0;
         }
-        *format = FLAC_EXTRADATA_FORMAT_FULL_HEADER;
         *streaminfo_start = &avctx->extradata[8];
     }
     return 1;

libavcodec/flac.h

@@ -55,11 +55,6 @@ enum {
     FLAC_METADATA_TYPE_INVALID = 127
 };
 
-enum FLACExtradataFormat {
-    FLAC_EXTRADATA_FORMAT_STREAMINFO  = 0,
-    FLAC_EXTRADATA_FORMAT_FULL_HEADER = 1
-};
-
 #define FLACCOMMONINFO \
     int samplerate;         /**< sample rate                             */\
     int channels;           /**< number of channels                      */\
@@ -106,7 +101,6 @@ int ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
  * @return 1 if valid, 0 if not valid.
  */
 int ff_flac_is_extradata_valid(AVCodecContext *avctx,
-                               enum FLACExtradataFormat *format,
                                uint8_t **streaminfo_start);
 
 /**

libavcodec/flacdec.c

@@ -94,7 +94,6 @@ static void flac_set_bps(FLACContext *s)
 
 static av_cold int flac_decode_init(AVCodecContext *avctx)
 {
-    enum FLACExtradataFormat format;
     uint8_t *streaminfo;
     int ret;
     FLACContext *s = avctx->priv_data;
@@ -105,7 +104,7 @@ static av_cold int flac_decode_init(AVCodecContext *avctx)
     if (!avctx->extradata)
         return 0;
 
-    if (!ff_flac_is_extradata_valid(avctx, &format, &streaminfo))
+    if (!ff_flac_is_extradata_valid(avctx, &streaminfo))
         return AVERROR_INVALIDDATA;
 
     /* initialize based on the demuxer-supplied streamdata header */