avcodec/prores_raw: Reuse permutation

The ProresDSPContext already contains the idct_permutation.

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/mediacodecdec_common.c

@@ -385,6 +385,12 @@ static int mediacodec_wrap_sw_audio_buffer(AVCodecContext *avctx,
         goto done;
     }
 
+    if (info->size % (sample_size * avctx->ch_layout.nb_channels)) {
+        av_log(avctx, AV_LOG_ERROR, "input is not a multiple of channels * sample_size\n");
+        ret = AVERROR(EINVAL);
+        goto done;
+    }
+
     frame->format = avctx->sample_fmt;
     frame->sample_rate = avctx->sample_rate;
     frame->nb_samples = info->size / (sample_size * avctx->ch_layout.nb_channels);

libavcodec/prores_raw.c

@@ -43,7 +43,6 @@
 static av_cold int decode_init(AVCodecContext *avctx)
 {
     ProResRAWContext *s = avctx->priv_data;
-    uint8_t idct_permutation[64];
 
     avctx->bits_per_raw_sample = 12;
     avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
@@ -55,10 +54,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     ff_blockdsp_init(&s->bdsp);
     ff_proresdsp_init(&s->prodsp, avctx->bits_per_raw_sample);
 
-    ff_init_scantable_permutation(idct_permutation,
-                                  s->prodsp.idct_permutation_type);
-
-    ff_permute_scantable(s->scan, ff_prores_interlaced_scan, idct_permutation);
+    ff_permute_scantable(s->scan, ff_prores_interlaced_scan, s->prodsp.idct_permutation);
 
     return 0;
 }