deploy: current vibn theia state

Made-with: Cursor

dev-packages/ffmpeg/native/ffmpeg.h

@@ -0,0 +1,80 @@
+#ifndef FFMPEG_H
+#define FFMPEG_H
+/**
+ * THIS FILE REDEFINES DATA AS RETURNED BY THE FFMPEG LIBRARY.
+ * HEADER FILES ARE NOT DISTRIBUTED IN OUR SETUP, HENCE THIS.
+ */
+
+/**
+ * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavutil/avutil.h#L193-L201
+ */
+enum AVMediaType
+{
+    _UNKNOWN_DATA_AVMediaType = -1,
+};
+
+/**
+ * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavcodec/avcodec.h#L191-L653
+ */
+enum AVCodecID
+{
+    __UNKNOWN_DATA_AVCodecID = 0,
+};
+
+/**
+ * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavcodec/avcodec.h#L3611-L3721
+ */
+struct AVCodec
+{
+    const char *name, *long_name;
+    enum AVMediaType type;
+    enum AVCodecID id;
+};
+
+/**
+ * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavcodec/avcodec.h#L660-L688
+ */
+struct AVCodecDescriptor
+{
+    enum AVCodecID id;
+    enum AVMediaType type;
+    const char *name, *long_name;
+};
+
+/**
+ * Wrapper around the ffmpeg library that must be loaded at runtime.
+ */
+struct FFMPEG_Library
+{
+    void *handle;
+
+    /**
+     * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavcodec/avcodec.h#L6228
+     *
+     * We use AVCodecDescriptor because it is the only structure that we can
+     * query on all platforms. Windows' ffmpeg.dll does not export a
+     * `av_codec_next` function, only `avcodec_descriptor_next`.
+     * Also it seems that this "descriptor" concept is the recommended API.
+     */
+    struct AVCodecDescriptor *(*avcodec_descriptor_next)(const struct AVCodecDescriptor *);
+
+    /**
+     * https://github.com/FFmpeg/FFmpeg/blob/release/3.2/libavcodec/avcodec.h#L4646
+     */
+    struct AVCodec *(*avcodec_find_decoder)(enum AVCodecID);
+};
+
+#define NULL_FFMPEG_LIBRARY \
+    (struct FFMPEG_Library) { NULL, NULL, NULL }
+
+/**
+ * Loader that will inject the loaded functions into a FFMPEG_Library structure.
+ */
+char *load_ffmpeg_library(struct FFMPEG_Library *library, char *library_path);
+
+/**
+ * Free library.
+ */
+char *unload_ffmpeg_library(struct FFMPEG_Library *library);
+
+#endif // FFMPEG_H guard