Initial Commit

2024-02-10 11:27:02 -06:00
parent a749abe795
commit 692f8f342e
31 changed files with 32686 additions and 0 deletions
--- a/rcbasic_runtime/theoraplay.h
+++ b/rcbasic_runtime/theoraplay.h
@@ -0,0 +1,85 @@
+/**
+ * TheoraPlay; multithreaded Ogg Theora/Ogg Vorbis decoding.
+ *
+ * Please see the file LICENSE.txt in the source's root directory.
+ *
+ *  This file written by Ryan C. Gordon.
+ */
+
+#ifndef _INCL_THEORAPLAY_H_
+#define _INCL_THEORAPLAY_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct THEORAPLAY_Io THEORAPLAY_Io;
+struct THEORAPLAY_Io
+{
+    long (*read)(THEORAPLAY_Io *io, void *buf, long buflen);
+    void (*close)(THEORAPLAY_Io *io);
+    void *userdata;
+};
+
+typedef struct THEORAPLAY_Decoder THEORAPLAY_Decoder;
+
+/* YV12 is YCrCb, not YCbCr; that's what SDL uses for YV12 overlays. */
+typedef enum THEORAPLAY_VideoFormat
+{
+    THEORAPLAY_VIDFMT_YV12,  /* NTSC colorspace, planar YCrCb 4:2:0 */
+    THEORAPLAY_VIDFMT_IYUV,  /* NTSC colorspace, planar YCbCr 4:2:0 */
+    THEORAPLAY_VIDFMT_RGB,   /* 24 bits packed pixel RGB */
+    THEORAPLAY_VIDFMT_RGBA   /* 32 bits packed pixel RGBA (full alpha). */
+} THEORAPLAY_VideoFormat;
+
+typedef struct THEORAPLAY_VideoFrame
+{
+    unsigned int playms;
+    double fps;
+    unsigned int width;
+    unsigned int height;
+    THEORAPLAY_VideoFormat format;
+    unsigned char *pixels;
+    struct THEORAPLAY_VideoFrame *next;
+} THEORAPLAY_VideoFrame;
+
+typedef struct THEORAPLAY_AudioPacket
+{
+    unsigned int playms;  /* playback start time in milliseconds. */
+    int channels;
+    int freq;
+    int frames;
+    float *samples;  /* frames * channels float32 samples. */
+    struct THEORAPLAY_AudioPacket *next;
+} THEORAPLAY_AudioPacket;
+
+THEORAPLAY_Decoder *THEORAPLAY_startDecodeFile(const char *fname,
+                                               const unsigned int maxframes,
+                                               THEORAPLAY_VideoFormat vidfmt);
+THEORAPLAY_Decoder *THEORAPLAY_startDecode(THEORAPLAY_Io *io,
+                                           const unsigned int maxframes,
+                                           THEORAPLAY_VideoFormat vidfmt);
+void THEORAPLAY_stopDecode(THEORAPLAY_Decoder *decoder);
+
+int THEORAPLAY_isDecoding(THEORAPLAY_Decoder *decoder);
+int THEORAPLAY_decodingError(THEORAPLAY_Decoder *decoder);
+int THEORAPLAY_isInitialized(THEORAPLAY_Decoder *decoder);
+int THEORAPLAY_hasVideoStream(THEORAPLAY_Decoder *decoder);
+int THEORAPLAY_hasAudioStream(THEORAPLAY_Decoder *decoder);
+unsigned int THEORAPLAY_availableVideo(THEORAPLAY_Decoder *decoder);
+unsigned int THEORAPLAY_availableAudio(THEORAPLAY_Decoder *decoder);
+
+const THEORAPLAY_AudioPacket *THEORAPLAY_getAudio(THEORAPLAY_Decoder *decoder);
+void THEORAPLAY_freeAudio(const THEORAPLAY_AudioPacket *item);
+
+const THEORAPLAY_VideoFrame *THEORAPLAY_getVideo(THEORAPLAY_Decoder *decoder);
+void THEORAPLAY_freeVideo(const THEORAPLAY_VideoFrame *item);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* include-once blocker. */
+
+/* end of theoraplay.h ... */
+