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