mmvideo: use the AVFrame API properly.

libavcodec/mmvideo.c

@@ -48,7 +48,7 @@
 
 typedef struct MmContext {
     AVCodecContext *avctx;
-    AVFrame frame;
+    AVFrame *frame;
     int palette[AVPALETTE_COUNT];
     GetByteContext gb;
 } MmContext;
@@ -61,7 +61,9 @@ static av_cold int mm_decode_init(AVCodecContext *avctx)
 
     avctx->pix_fmt = AV_PIX_FMT_PAL8;
 
-    avcodec_get_frame_defaults(&s->frame);
+    s->frame = av_frame_alloc();
+    if (!s->frame)
+        return AVERROR(ENOMEM);
 
     return 0;
 }
@@ -105,9 +107,9 @@ static int mm_decode_intra(MmContext * s, int half_horiz, int half_vert)
             run_length *=2;
 
         if (color) {
-            memset(s->frame.data[0] + y*s->frame.linesize[0] + x, color, run_length);
+            memset(s->frame->data[0] + y*s->frame->linesize[0] + x, color, run_length);
             if (half_vert)
-                memset(s->frame.data[0] + (y+1)*s->frame.linesize[0] + x, color, run_length);
+                memset(s->frame->data[0] + (y+1)*s->frame->linesize[0] + x, color, run_length);
         }
         x+= run_length;
 
@@ -154,13 +156,13 @@ static int mm_decode_inter(MmContext * s, int half_horiz, int half_vert)
                 int replace = (replace_array >> (7-j)) & 1;
                 if (replace) {
                     int color = bytestream2_get_byte(&data_ptr);
-                    s->frame.data[0][y*s->frame.linesize[0] + x] = color;
+                    s->frame->data[0][y*s->frame->linesize[0] + x] = color;
                     if (half_horiz)
-                        s->frame.data[0][y*s->frame.linesize[0] + x + 1] = color;
+                        s->frame->data[0][y*s->frame->linesize[0] + x + 1] = color;
                     if (half_vert) {
-                        s->frame.data[0][(y+1)*s->frame.linesize[0] + x] = color;
+                        s->frame->data[0][(y+1)*s->frame->linesize[0] + x] = color;
                         if (half_horiz)
-                            s->frame.data[0][(y+1)*s->frame.linesize[0] + x + 1] = color;
+                            s->frame->data[0][(y+1)*s->frame->linesize[0] + x + 1] = color;
                     }
                 }
                 x += 1 + half_horiz;
@@ -189,7 +191,7 @@ static int mm_decode_frame(AVCodecContext *avctx,
     buf_size -= MM_PREAMBLE_SIZE;
     bytestream2_init(&s->gb, buf, buf_size);
 
-    if ((res = ff_reget_buffer(avctx, &s->frame)) < 0) {
+    if ((res = ff_reget_buffer(avctx, s->frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
         return res;
     }
@@ -209,9 +211,9 @@ static int mm_decode_frame(AVCodecContext *avctx,
     if (res < 0)
         return res;
 
-    memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
+    memcpy(s->frame->data[1], s->palette, AVPALETTE_SIZE);
 
-    if ((res = av_frame_ref(data, &s->frame)) < 0)
+    if ((res = av_frame_ref(data, s->frame)) < 0)
         return res;
 
     *got_frame      = 1;
@@ -223,7 +225,7 @@ static av_cold int mm_decode_end(AVCodecContext *avctx)
 {
     MmContext *s = avctx->priv_data;
 
-    av_frame_unref(&s->frame);
+    av_frame_free(&s->frame);
 
     return 0;
 }