1 files changed, 53 insertions, 0 deletions
diff --git a/libavcodec/libschroedinger.c b/libavcodec/libschroedinger.c
index ec9bde4880..242d354be3 100644
--- a/libavcodec/libschroedinger.c
+++ b/libavcodec/libschroedinger.c
@@ -77,3 +77,56 @@ int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt,
     }
     return -1;
 }
+
+static void FreeSchroFrame(SchroFrame *frame, void *priv)
+{
+    AVPicture *p_pic = priv;
+
+    if (!p_pic)
+        return;
+
+    avpicture_free(p_pic);
+    av_freep(&p_pic);
+}
+
+SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext,
+                                  SchroFrameFormat schro_frame_fmt)
+{
+    AVPicture *p_pic;
+    SchroFrame *p_frame;
+    int y_width, uv_width;
+    int y_height, uv_height;
+    int i;
+
+    y_width   = avccontext->width;
+    y_height  = avccontext->height;
+    uv_width  = y_width  >> (SCHRO_FRAME_FORMAT_H_SHIFT(schro_frame_fmt));
+    uv_height = y_height >> (SCHRO_FRAME_FORMAT_V_SHIFT(schro_frame_fmt));
+
+    p_pic = av_mallocz(sizeof(AVPicture));
+    avpicture_alloc(p_pic, avccontext->pix_fmt, y_width, y_height);
+
+    p_frame         = schro_frame_new();
+    p_frame->format = schro_frame_fmt;
+    p_frame->width  = y_width;
+    p_frame->height = y_height;
+    schro_frame_set_free_callback(p_frame, FreeSchroFrame, (void *)p_pic);
+
+    for (i = 0; i < 3; ++i) {
+        p_frame->components[i].width  = i ? uv_width : y_width;
+        p_frame->components[i].stride = p_pic->linesize[i];
+        p_frame->components[i].height = i ? uv_height : y_height;
+        p_frame->components[i].length =
+                 p_frame->components[i].stride * p_frame->components[i].height;
+        p_frame->components[i].data   = p_pic->data[i];
+
+        if (i) {
+            p_frame->components[i].v_shift =
+                SCHRO_FRAME_FORMAT_V_SHIFT(p_frame->format);
+            p_frame->components[i].h_shift =
+                SCHRO_FRAME_FORMAT_H_SHIFT(p_frame->format);
+        }
+    }
+
+    return p_frame;
+}