(61d00a474) v0.9.7.1

Libraries/webm_mem_playback/libvpx/y4minput.h

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ *
+ *  Based on code from the OggTheora software codec source code,
+ *  Copyright (C) 2002-2010 The Xiph.Org Foundation and contributors.
+ */
+
+#ifndef VPX_Y4MINPUT_H_
+#define VPX_Y4MINPUT_H_
+
+#include <stdio.h>
+#include "vpx/vpx_image.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct y4m_input y4m_input;
+
+/*The function used to perform chroma conversion.*/
+typedef void (*y4m_convert_func)(y4m_input *_y4m, unsigned char *_dst,
+                                 unsigned char *_src);
+
+struct y4m_input {
+  int pic_w;
+  int pic_h;
+  int fps_n;
+  int fps_d;
+  int par_n;
+  int par_d;
+  char interlace;
+  int src_c_dec_h;
+  int src_c_dec_v;
+  int dst_c_dec_h;
+  int dst_c_dec_v;
+  char chroma_type[16];
+  /*The size of each converted frame buffer.*/
+  size_t dst_buf_sz;
+  /*The amount to read directly into the converted frame buffer.*/
+  size_t dst_buf_read_sz;
+  /*The size of the auxilliary buffer.*/
+  size_t aux_buf_sz;
+  /*The amount to read into the auxilliary buffer.*/
+  size_t aux_buf_read_sz;
+  y4m_convert_func convert;
+  unsigned char *dst_buf;
+  unsigned char *aux_buf;
+  enum vpx_img_fmt vpx_fmt;
+  int bps;
+  unsigned int bit_depth;
+};
+
+int y4m_input_open(y4m_input *_y4m, FILE *_fin, char *_skip, int _nskip,
+                   int only_420);
+void y4m_input_close(y4m_input *_y4m);
+int y4m_input_fetch_frame(y4m_input *_y4m, FILE *_fin, vpx_image_t *img);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_Y4MINPUT_H_