8svx: decode directly to the user-provided AVFrame

libavcodec/8svx.c

@@ -34,7 +34,6 @@
 
 /** decoder context */
 typedef struct EightSvxContext {
-    AVFrame frame;
     uint8_t fib_acc[2];
     const int8_t *table;
 
@@ -85,6 +84,7 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
                                  int *got_frame_ptr, AVPacket *avpkt)
 {
     EightSvxContext *esc = avctx->priv_data;
+    AVFrame *frame       = data;
     int buf_size;
     int ch, ret;
     int is_compr = (avctx->codec_id != AV_CODEC_ID_PCM_S8_PLANAR);
@@ -136,26 +136,25 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     /* get output buffer */
-    esc->frame.nb_samples = buf_size * (is_compr + 1);
-    if ((ret = ff_get_buffer(avctx, &esc->frame)) < 0) {
+    frame->nb_samples = buf_size * (is_compr + 1);
+    if ((ret = ff_get_buffer(avctx, frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
 
     for (ch = 0; ch < avctx->channels; ch++) {
         if (is_compr) {
-            delta_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
+            delta_decode(frame->data[ch], &esc->data[ch][esc->data_idx],
                          buf_size, &esc->fib_acc[ch], esc->table);
         } else {
-            raw_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
+            raw_decode(frame->data[ch], &esc->data[ch][esc->data_idx],
                        buf_size);
         }
     }
 
     esc->data_idx += buf_size;
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = esc->frame;
+    *got_frame_ptr = 1;
 
     return avpkt->size;
 }
@@ -184,9 +183,6 @@ static av_cold int eightsvx_decode_init(AVCodecContext *avctx)
     }
     avctx->sample_fmt = AV_SAMPLE_FMT_U8P;
 
-    avcodec_get_frame_defaults(&esc->frame);
-    avctx->coded_frame = &esc->frame;
-
     return 0;
 }