almost complete implementation

2026-06-07 00:40:27 +03:00
parent ac1015d603
commit ad945bbbaa
175 changed files with 38200 additions and 1 deletions
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV1D_COMMON_H
+#define DAV1D_COMMON_H
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef DAV1D_API
+    #if defined _WIN32
+      #if defined DAV1D_BUILDING_DLL
+        #define DAV1D_API __declspec(dllexport)
+      #else
+        #define DAV1D_API
+      #endif
+    #elif defined __OS2__
+        #define DAV1D_API __declspec(dllexport)
+    #else
+      #if __GNUC__ >= 4
+        #define DAV1D_API __attribute__ ((visibility ("default")))
+      #else
+        #define DAV1D_API
+      #endif
+    #endif
+#endif
+
+#if EPERM > 0
+#define DAV1D_ERR(e) (-(e)) ///< Negate POSIX error code.
+#else
+#define DAV1D_ERR(e) (e)
+#endif
+
+/**
+ * A reference-counted object wrapper for a user-configurable pointer.
+ */
+typedef struct Dav1dUserData {
+    const uint8_t *data; ///< data pointer
+    struct Dav1dRef *ref; ///< allocation origin
+} Dav1dUserData;
+
+/**
+ * Input packet metadata which are copied from the input data used to
+ * decode each image into the matching structure of the output image
+ * returned back to the user. Since these are metadata fields, they
+ * can be used for other purposes than the documented ones, they will
+ * still be passed from input data to output picture without being
+ * used internally.
+ */
+typedef struct Dav1dDataProps {
+    int64_t timestamp; ///< container timestamp of input data, INT64_MIN if unknown (default)
+    int64_t duration; ///< container duration of input data, 0 if unknown (default)
+    int64_t offset; ///< stream offset of input data, -1 if unknown (default)
+    size_t size; ///< packet size, default Dav1dData.sz
+    struct Dav1dUserData user_data; ///< user-configurable data, default NULL members
+} Dav1dDataProps;
+
+/**
+ * Release reference to a Dav1dDataProps.
+ */
+DAV1D_API void dav1d_data_props_unref(Dav1dDataProps *props);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* DAV1D_COMMON_H */