--- /dev/null
+/*\r
+ Libavcodec integration for Darkplaces by Timofeyev Pavel\r
+\r
+ This program is free software; you can redistribute it and/or\r
+ modify it under the terms of the GNU General Public License\r
+ as published by the Free Software Foundation; either version 2\r
+ of the License, or (at your option) any later version.\r
+\r
+ This program is distributed in the hope that it will be useful,\r
+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\r
+\r
+ See the GNU General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with this program; if not, write to:\r
+\r
+ Free Software Foundation, Inc.\r
+ 59 Temple Place - Suite 330\r
+ Boston, MA 02111-1307, USA\r
+\r
+*/\r
+\r
+#include "common.h"\r
+#ifdef _MSC_VERSION\r
+#include "stdint.h"\r
+#else\r
+#include <stdint.h>\r
+#endif\r
+\r
+// scaler type\r
+#define LIBAVW_SCALER_BILINEAR 0\r
+#define LIBAVW_SCALER_BICUBIC 1\r
+#define LIBAVW_SCALER_X 2\r
+#define LIBAVW_SCALER_POINT 3\r
+#define LIBAVW_SCALER_AREA 4\r
+#define LIBAVW_SCALER_BICUBLIN 5\r
+#define LIBAVW_SCALER_GAUSS 6\r
+#define LIBAVW_SCALER_SINC 7\r
+#define LIBAVW_SCALER_LANCZOS 8\r
+#define LIBAVW_SCALER_SPLINE 9\r
+// output format\r
+#define LIBAVW_PIXEL_FORMAT_BGR 0\r
+#define LIBAVW_PIXEL_FORMAT_BGRA 1\r
+// print levels\r
+#define LIBAVW_PRINT_WARNING 1\r
+#define LIBAVW_PRINT_ERROR 2\r
+#define LIBAVW_PRINT_FATAL 3\r
+#define LIBAVW_PRINT_PANIC 4\r
+// exported callback functions:\r
+typedef void avwCallbackPrint(int, const char *);\r
+typedef int avwCallbackIoRead(void *, uint8_t *, int);\r
+typedef int64_t avwCallbackIoSeek(void *, int64_t, int);\r
+typedef int64_t avwCallbackIoSeekSize(void *);\r
+// exported functions:\r
+int (*qLibAvW_Init)(avwCallbackPrint *printfunction); // init library, returns error code\r
+const char *(*qLibAvW_ErrorString)(int errorcode); // get string for error code\r
+const char *(*qLibAvW_AvcVersion)(void); // get a string containing libavcodec version wrapper was built for\r
+float (*qLibAvW_Version)(void); // get wrapper version\r
+int (*qLibAvW_CreateStream)(void **stream); // create stream, returns error code\r
+void (*qLibAvW_RemoveStream)(void *stream); // flush and remove stream\r
+int (*qLibAvW_StreamGetVideoWidth)(void *stream); // get video parameters of stream\r
+int (*qLibAvW_StreamGetVideoHeight)(void *stream);\r
+double (*qLibAvW_StreamGetFramerate)(void *stream);\r
+int (*qLibAvW_StreamGetError)(void *stream); // get last function errorcode from stream\r
+// simple API to play video\r
+int (*qLibAvW_PlayVideo)(void *stream, void *file, avwCallbackIoRead *IoRead, avwCallbackIoSeek *IoSeek, avwCallbackIoSeekSize *IoSeekSize);\r
+int (*qLibAvW_PlaySeekNextFrame)(void *stream);\r
+int (*qLibAvW_PlayGetFrameImage)(void *stream, int pixel_format, void *imagedata, int imagewidth, int imageheight, int scaler);\r
+\r
+static dllfunction_t libavwfuncs[] =\r
+{\r
+ {"LibAvW_Init", (void **) &qLibAvW_Init },\r
+ {"LibAvW_ErrorString", (void **) &qLibAvW_ErrorString },\r
+ {"LibAvW_AvcVersion", (void **) &qLibAvW_AvcVersion },\r
+ {"LibAvW_Version", (void **) &qLibAvW_Version },\r
+ {"LibAvW_CreateStream", (void **) &qLibAvW_CreateStream },\r
+ {"LibAvW_RemoveStream", (void **) &qLibAvW_RemoveStream },\r
+ {"LibAvW_StreamGetVideoWidth", (void **) &qLibAvW_StreamGetVideoWidth },\r
+ {"LibAvW_StreamGetVideoHeight",(void **) &qLibAvW_StreamGetVideoHeight },\r
+ {"LibAvW_StreamGetFramerate", (void **) &qLibAvW_StreamGetFramerate },\r
+ {"LibAvW_StreamGetError", (void **) &qLibAvW_StreamGetError },\r
+ {"LibAvW_PlayVideo", (void **) &qLibAvW_PlayVideo },\r
+ {"LibAvW_PlaySeekNextFrame", (void **) &qLibAvW_PlaySeekNextFrame },\r
+ {"LibAvW_PlayGetFrameImage", (void **) &qLibAvW_PlayGetFrameImage },\r
+ {NULL, NULL}\r
+};\r
+\r
+const char* dllnames_libavw[] =\r
+{\r
+#if defined(WIN32)\r
+ "libavw.dll",\r
+#elif defined(MACOSX)\r
+ "libavw.dylib",\r
+#else\r
+ "libavw.so.1",\r
+ "libavw.so",\r
+#endif\r
+ NULL\r
+};\r
+\r
+static dllhandle_t libavw_dll = NULL;\r
+\r
+// DP videostream\r
+typedef struct libavwstream_s\r
+{\r
+ qfile_t *file;\r
+ double info_framerate;\r
+ unsigned int info_imagewidth;\r
+ unsigned int info_imageheight;\r
+ double info_aspectratio;\r
+ void *stream;\r
+\r
+ // channel the sound file is being played on\r
+ sfx_t *sfx;\r
+ int sndchan;\r
+ int sndstarted;\r
+}\r
+libavwstream_t;\r
+\r
+cvar_t cl_video_libavw_minwidth = {CVAR_SAVE, "cl_video_libavw_minwidth", "0", "if videos width is lesser than minimal, thay will be upscaled"};\r
+cvar_t cl_video_libavw_minheight = {CVAR_SAVE, "cl_video_libavw_minheight", "0", "if videos height is lesser than minimal, thay will be upscaled"};\r
+cvar_t cl_video_libavw_scaler = {CVAR_SAVE, "cl_video_libavw_scaler", "1", "selects a scaler for libavcode played videos. Scalers are: 0 - bilinear, 1 - bicubic, 2 - x, 3 - point, 4 - area, 5 - bicublin, 6 - gauss, 7 - sinc, 8 - lanczos, 9 - spline."};\r
+\r
+// video extensions\r
+const char* libavw_extensions[] =\r
+{\r
+ "ogv",\r
+ "avi",\r
+ "mpg",\r
+ "mp4",\r
+ "mkv",\r
+ "webm",\r
+ "bik",\r
+ "roq",\r
+ "flv",\r
+ "wmv",\r
+ "mpeg",\r
+ "mjpeg",\r
+ "mpeg4",\r
+ NULL\r
+};\r
+\r
+/*\r
+=================================================================\r
+\r
+ Video decoding\r
+ a features that is not supported yet and likely to be done\r
+ - streaming audio from videofiles\r
+ - streaming subtitles\r
+\r
+=================================================================\r
+*/\r
+\r
+unsigned int libavw_getwidth(void *stream);\r
+unsigned int libavw_getheight(void *stream);\r
+double libavw_getframerate(void *stream);\r
+double libavw_getaspectratio(void *stream);\r
+void libavw_close(void *stream);\r
+\r
+int libavw_decodeframe(void *stream, void *imagedata, unsigned int Rmask, unsigned int Gmask, unsigned int Bmask, unsigned int bytesperpixel, int imagebytesperrow)\r
+{\r
+ int pixel_format = LIBAVW_PIXEL_FORMAT_BGR;\r
+ int errorcode;\r
+\r
+ libavwstream_t *s = (libavwstream_t *)stream;\r
+\r
+ // start sound\r
+ if (!s->sndstarted)\r
+ {\r
+ if (s->sfx != NULL)\r
+ s->sndchan = S_StartSound(-1, 0, s->sfx, vec3_origin, 1.0f, 0);\r
+ s->sndstarted = 1;\r
+ }\r
+\r
+ // read frame\r
+ if (!qLibAvW_PlaySeekNextFrame(s->stream))\r
+ {\r
+ // got error or file end\r
+ errorcode = qLibAvW_StreamGetError(s->stream);\r
+ if (errorcode)\r
+ Con_Printf("LibAvW: %s\n", qLibAvW_ErrorString(errorcode));\r
+ return 1;\r
+ }\r
+\r
+ // decode into bgr texture\r
+ if (bytesperpixel == 4)\r
+ pixel_format = LIBAVW_PIXEL_FORMAT_BGRA;\r
+ else if (bytesperpixel == 3)\r
+ pixel_format = LIBAVW_PIXEL_FORMAT_BGR;\r
+ else\r
+ {\r
+ Con_Printf("LibAvW: cannot determine pixel format for bpp %i\n", bytesperpixel);\r
+ return 1;\r
+ }\r
+ if (!qLibAvW_PlayGetFrameImage(s->stream, pixel_format, imagedata, s->info_imagewidth, s->info_imageheight, min(9, max(0, cl_video_libavw_scaler.integer))))\r
+ Con_Printf("LibAvW: %s\n", qLibAvW_ErrorString(qLibAvW_StreamGetError(s->stream)));\r
+ return 0;\r
+}\r
+\r
+// get stream info\r
+unsigned int libavw_getwidth(void *stream)\r
+{\r
+ return ((libavwstream_t *)stream)->info_imagewidth;\r
+}\r
+\r
+unsigned int libavw_getheight(void *stream)\r
+{\r
+ return ((libavwstream_t *)stream)->info_imageheight;\r
+}\r
+\r
+double libavw_getframerate(void *stream)\r
+{\r
+ return ((libavwstream_t *)stream)->info_framerate;\r
+}\r
+\r
+double libavw_getaspectratio(void *stream)\r
+{\r
+ return ((libavwstream_t *)stream)->info_aspectratio;\r
+}\r
+\r
+// close stream\r
+void libavw_close(void *stream)\r
+{\r
+ libavwstream_t *s = (libavwstream_t *)stream;\r
+\r
+ if (s->stream)\r
+ qLibAvW_RemoveStream(s->stream);\r
+ s->stream = NULL;\r
+ if (s->file)\r
+ FS_Close(s->file);\r
+ s->file = NULL;\r
+ if (s->sndchan >= 0)\r
+ S_StopChannel(s->sndchan, true, true);\r
+ s->sndchan = -1;\r
+}\r
+\r
+// IO wrapper\r
+int LibAvW_FS_Read(void *opaque, uint8_t *buf, int buf_size)\r
+{\r
+ return FS_Read((qfile_t *)opaque, buf, buf_size);\r
+}\r
+int64_t LibAvW_FS_Seek(void *opaque, int64_t pos, int whence)\r
+{\r
+ return (int64_t)FS_Seek((qfile_t *)opaque, pos, whence);\r
+}\r
+int64_t LibAvW_FS_SeekSize(void *opaque)\r
+{\r
+ return (int64_t)FS_FileSize((qfile_t *)opaque);\r
+}\r
+\r
+// open as DP video stream\r
+void *LibAvW_OpenVideo(clvideo_t *video, char *filename, const char **errorstring)\r
+{\r
+ libavwstream_t *s;\r
+ char filebase[MAX_OSPATH], check[MAX_OSPATH];\r
+ unsigned int i;\r
+ int errorcode;\r
+ char *wavename;\r
+ size_t len;\r
+\r
+ if (!libavw_dll)\r
+ return NULL;\r
+\r
+ // allocate stream\r
+ s = (libavwstream_t *)Z_Malloc(sizeof(libavwstream_t));\r
+ s->sndchan = -1;\r
+ memset(s, 0, sizeof(libavwstream_t));\r
+ if (s == NULL)\r
+ {\r
+ *errorstring = "unable to allocate memory for stream info structure";\r
+ return NULL;\r
+ }\r
+\r
+ // open file\r
+ s->file = FS_OpenVirtualFile(filename, true);\r
+ if (!s->file)\r
+ {\r
+ FS_StripExtension(filename, filebase, sizeof(filebase));\r
+ // we tried .dpv, try another extensions\r
+ for (i = 0; libavw_extensions[i] != NULL; i++)\r
+ {\r
+ dpsnprintf(check, sizeof(check), "%s.%s", filebase, libavw_extensions[i]);\r
+ s->file = FS_OpenVirtualFile(check, true);\r
+ if (s->file)\r
+ break;\r
+ }\r
+ if (!s->file)\r
+ {\r
+ *errorstring = "unable to open videofile";\r
+ libavw_close(s);\r
+ Z_Free(s);\r
+ return NULL;\r
+ }\r
+ }\r
+\r
+ // allocate libavw stream\r
+ if ((errorcode = qLibAvW_CreateStream(&s->stream)))\r
+ {\r
+ *errorstring = qLibAvW_ErrorString(errorcode);\r
+ libavw_close(s);\r
+ Z_Free(s);\r
+ return NULL;\r
+ }\r
+\r
+ // open video for playing\r
+ if (!qLibAvW_PlayVideo(s->stream, s->file, &LibAvW_FS_Read, &LibAvW_FS_Seek, &LibAvW_FS_SeekSize))\r
+ {\r
+ *errorstring = qLibAvW_ErrorString(qLibAvW_StreamGetError(s->stream));\r
+ libavw_close(s);\r
+ Z_Free(s);\r
+ return NULL;\r
+ }\r
+\r
+ // all right, start codec\r
+ s->info_imagewidth = qLibAvW_StreamGetVideoWidth(s->stream);\r
+ s->info_imageheight = qLibAvW_StreamGetVideoHeight(s->stream);\r
+ s->info_framerate = qLibAvW_StreamGetFramerate(s->stream);\r
+ s->info_aspectratio = (double)s->info_imagewidth / (double)s->info_imageheight;\r
+ video->close = libavw_close;\r
+ video->getwidth = libavw_getwidth;\r
+ video->getheight = libavw_getheight;\r
+ video->getframerate = libavw_getframerate;\r
+ video->decodeframe = libavw_decodeframe;\r
+ video->getaspectratio = libavw_getaspectratio;\r
+\r
+ // apply min-width, min-height, keep aspect rate\r
+ if (cl_video_libavw_minwidth.integer > 0)\r
+ s->info_imagewidth = max(s->info_imagewidth, (unsigned int)cl_video_libavw_minwidth.integer);\r
+ if (cl_video_libavw_minheight.integer > 0)\r
+ s->info_imageheight = max(s->info_imageheight, (unsigned int)cl_video_libavw_minheight.integer);\r
+ \r
+ // provide sound in separate .wav\r
+ len = strlen(filename) + 10;\r
+ wavename = (char *)Z_Malloc(len);\r
+ if (wavename)\r
+ {\r
+ FS_StripExtension(filename, wavename, len-1);\r
+ strlcat(wavename, ".wav", len);\r
+ s->sfx = S_PrecacheSound(wavename, false, false);\r
+ s->sndchan = -1;\r
+ Z_Free(wavename);\r
+ }\r
+ return s;\r
+}\r
+\r
+void libavw_message(int level, const char *message)\r
+{\r
+ if (level == LIBAVW_PRINT_WARNING)\r
+ Con_Printf("LibAvcodec warning: %s\n", message);\r
+ else if (level == LIBAVW_PRINT_ERROR)\r
+ Con_Printf("LibAvcodec error: %s\n", message);\r
+ else if (level == LIBAVW_PRINT_FATAL)\r
+ Con_Printf("LibAvcodec fatal error: %s\n", message);\r
+ else\r
+ Con_Printf("LibAvcodec panic: %s\n", message);\r
+}\r
+\r
+qboolean LibAvW_OpenLibrary(void)\r
+{\r
+ int errorcode;\r
+\r
+ // COMMANDLINEOPTION: Video: -nolibavw disables libavcodec wrapper support\r
+ if (COM_CheckParm("-nolibavw"))\r
+ return false;\r
+\r
+ // load DLL's\r
+ Sys_LoadLibrary(dllnames_libavw, &libavw_dll, libavwfuncs);\r
+ if (!libavw_dll)\r
+ return false;\r
+\r
+ // initialize libav wrapper\r
+ if ((errorcode = qLibAvW_Init(&libavw_message)))\r
+ {\r
+ Con_Printf("LibAvW failed to initialize: %s\n", qLibAvW_ErrorString(errorcode));\r
+ Sys_UnloadLibrary(&libavw_dll);\r
+ }\r
+\r
+ Cvar_RegisterVariable(&cl_video_libavw_minwidth);\r
+ Cvar_RegisterVariable(&cl_video_libavw_minheight);\r
+ Cvar_RegisterVariable(&cl_video_libavw_scaler);\r
+\r
+ return true;\r
+}\r
+\r
+void LibAvW_CloseLibrary(void)\r
+{\r
+ Sys_UnloadLibrary(&libavw_dll);\r
+}\r
+\r
projects / xonotic / darkplaces.git / blobdiff