/* * next generation[tm] xawtv capture interfaces * * (c) 2001-03 Gerd Knorr * */ #include #include #include "devices.h" #include "list.h" extern int ng_debug; extern int ng_chromakey; extern int ng_jpeg_quality; extern int ng_ratio_x; extern int ng_ratio_y; extern char ng_v4l_conf[256]; #define BUG_ON(condition,message) if (condition) {\ fprintf(stderr,"BUG: %s [%s:%d]\n",\ message,__FILE__,__LINE__);\ exit(1);} #if __STDC_VERSION__ < 199901 # define restrict #endif #define UNSET (-1U) #define DIMOF(array) (sizeof(array)/sizeof(array[0])) #define SDIMOF(array) ((signed int)(sizeof(array)/sizeof(array[0]))) #define GETELEM(array,index,default) \ (index < sizeof(array)/sizeof(array[0]) ? array[index] : default) /* --------------------------------------------------------------------- */ /* defines */ #define VIDEO_NONE 0 #define VIDEO_RGB08 1 /* bt848 dithered */ #define VIDEO_GRAY 2 #define VIDEO_RGB15_LE 3 /* 15 bpp little endian */ #define VIDEO_RGB16_LE 4 /* 16 bpp little endian */ #define VIDEO_RGB15_BE 5 /* 15 bpp big endian */ #define VIDEO_RGB16_BE 6 /* 16 bpp big endian */ #define VIDEO_BGR24 7 /* bgrbgrbgrbgr (LE) */ #define VIDEO_BGR32 8 /* bgr-bgr-bgr- (LE) */ #define VIDEO_RGB24 9 /* rgbrgbrgbrgb (BE) */ #define VIDEO_RGB32 10 /* -rgb-rgb-rgb (BE) */ #define VIDEO_LUT2 11 /* lookup-table 2 byte depth */ #define VIDEO_LUT4 12 /* lookup-table 4 byte depth */ #define VIDEO_YUYV 13 /* 4:2:2 */ #define VIDEO_YUV422P 14 /* YUV 4:2:2 (planar) */ #define VIDEO_YUV420P 15 /* YUV 4:2:0 (planar) */ #define VIDEO_MJPEG 16 /* MJPEG (AVI) */ #define VIDEO_JPEG 17 /* JPEG (JFIF) */ #define VIDEO_UYVY 18 /* 4:2:2 */ #define VIDEO_FMT_COUNT 19 #define AUDIO_NONE 0 #define AUDIO_U8_MONO 1 #define AUDIO_U8_STEREO 2 #define AUDIO_S16_LE_MONO 3 #define AUDIO_S16_LE_STEREO 4 #define AUDIO_S16_BE_MONO 5 #define AUDIO_S16_BE_STEREO 6 #define AUDIO_MP3 7 #define AUDIO_FMT_COUNT 8 #if BYTE_ORDER == BIG_ENDIAN # define AUDIO_S16_NATIVE_MONO AUDIO_S16_BE_MONO # define AUDIO_S16_NATIVE_STEREO AUDIO_S16_BE_STEREO # define VIDEO_RGB15_NATIVE VIDEO_RGB15_BE # define VIDEO_RGB16_NATIVE VIDEO_RGB16_BE #endif #if BYTE_ORDER == LITTLE_ENDIAN # define AUDIO_S16_NATIVE_MONO AUDIO_S16_LE_MONO # define AUDIO_S16_NATIVE_STEREO AUDIO_S16_LE_STEREO # define VIDEO_RGB15_NATIVE VIDEO_RGB15_LE # define VIDEO_RGB16_NATIVE VIDEO_RGB16_LE #endif #define ATTR_TYPE_INTEGER 1 /* range 0 - 65535 */ #define ATTR_TYPE_CHOICE 2 /* multiple choice */ #define ATTR_TYPE_BOOL 3 /* yes/no */ #define ATTR_ID_NORM 1 #define ATTR_ID_INPUT 2 #define ATTR_ID_VOLUME 3 #define ATTR_ID_MUTE 4 #define ATTR_ID_AUDIO_MODE 5 #define ATTR_ID_COLOR 6 #define ATTR_ID_BRIGHT 7 #define ATTR_ID_HUE 8 #define ATTR_ID_CONTRAST 9 #define ATTR_ID_COUNT 10 #define CAN_OVERLAY 1 #define CAN_CAPTURE 2 #define CAN_TUNE 4 #define NEEDS_CHROMAKEY 8 /* --------------------------------------------------------------------- */ extern const unsigned int ng_vfmt_to_depth[VIDEO_FMT_COUNT]; extern const char* ng_vfmt_to_desc[VIDEO_FMT_COUNT]; extern const unsigned int ng_afmt_to_channels[AUDIO_FMT_COUNT]; extern const unsigned int ng_afmt_to_bits[AUDIO_FMT_COUNT]; extern const char* ng_afmt_to_desc[AUDIO_FMT_COUNT]; extern const char* ng_attr_to_desc[ATTR_ID_COUNT]; /* --------------------------------------------------------------------- */ struct STRTAB { long nr; const char *str; }; struct OVERLAY_CLIP { int x1,x2,y1,y2; }; /* --------------------------------------------------------------------- */ /* video data structures */ struct ng_video_fmt { unsigned int fmtid; /* VIDEO_* */ unsigned int width; unsigned int height; unsigned int bytesperline; /* zero for compressed formats */ }; struct ng_video_buf { struct ng_video_fmt fmt; size_t size; unsigned char *data; /* meta info for frame */ struct { int64_t ts; /* time stamp */ int seq; int twice; } info; /* * the lock is for the reference counter. * if the reference counter goes down to zero release() * should be called. priv is for the owner of the * buffer (can be used by the release callback) */ pthread_mutex_t lock; pthread_cond_t cond; int refcount; void (*release)(struct ng_video_buf *buf); void *priv; }; void ng_init_video_buf(struct ng_video_buf *buf); void ng_release_video_buf(struct ng_video_buf *buf); struct ng_video_buf* ng_malloc_video_buf(struct ng_video_fmt *fmt, int size); void ng_wakeup_video_buf(struct ng_video_buf *buf); void ng_waiton_video_buf(struct ng_video_buf *buf); /* --------------------------------------------------------------------- */ /* audio data structures */ struct ng_audio_fmt { unsigned int fmtid; /* AUDIO_* */ unsigned int rate; }; struct ng_audio_buf { struct ng_audio_fmt fmt; int size; int written; /* for partial writes */ char *data; struct { int64_t ts; } info; }; struct ng_audio_buf* ng_malloc_audio_buf(struct ng_audio_fmt *fmt, int size); /* --------------------------------------------------------------------- */ /* someone who receives video and/or audio data (writeavi, ...) */ struct ng_format_list { char *name; char *desc; /* if standard fmtid description doesn't work because it's converted somehow */ char *ext; unsigned int fmtid; void *priv; }; struct ng_writer { const char *name; const char *desc; const struct ng_format_list *video; const struct ng_format_list *audio; const int combined; /* both audio + video in one file */ void* (*wr_open)(char *moviename, char *audioname, struct ng_video_fmt *video, const void *priv_video, int fps, struct ng_audio_fmt *audio, const void *priv_audio); int (*wr_video)(void *handle, struct ng_video_buf *buf); int (*wr_audio)(void *handle, struct ng_audio_buf *buf); int (*wr_close)(void *handle); struct list_head list; }; struct ng_reader { const char *name; const char *desc; char *magic[4]; int moff[4]; int mlen[4]; void* (*rd_open)(char *moviename); struct ng_video_fmt* (*rd_vfmt)(void *handle, int *vfmt, int vn); struct ng_audio_fmt* (*rd_afmt)(void *handle); struct ng_video_buf* (*rd_vdata)(void *handle, unsigned int drop); struct ng_audio_buf* (*rd_adata)(void *handle); int64_t (*frame_time)(void *handle); int (*rd_close)(void *handle); struct list_head list; }; /* --------------------------------------------------------------------- */ /* attributes */ struct ng_attribute { int id; const char *name; int type; int defval; struct STRTAB *choices; /* ATTR_TYPE_CHOICE */ int min,max; /* ATTR_TYPE_INTEGER */ int points; /* ATTR_TYPE_INTEGER -- fixed point */ const void *priv; void *handle; int (*read)(struct ng_attribute*); void (*write)(struct ng_attribute*, int val); }; struct ng_attribute* ng_attr_byid(struct ng_attribute *attrs, int id); struct ng_attribute* ng_attr_byname(struct ng_attribute *attrs, char *name); const char* ng_attr_getstr(struct ng_attribute *attr, int value); int ng_attr_getint(struct ng_attribute *attr, char *value); void ng_attr_listchoices(struct ng_attribute *attr); int ng_attr_int2percent(struct ng_attribute *attr, int value); int ng_attr_percent2int(struct ng_attribute *attr, int percent); int ng_attr_parse_int(struct ng_attribute *attr, char *str); /* --------------------------------------------------------------------- */ void ng_ratio_fixup(int *width, int *height, int *xoff, int *yoff); void ng_ratio_fixup2(int *width, int *height, int *xoff, int *yoff, int ratio_x, int ratio_y, int up); /* --------------------------------------------------------------------- */ /* device informations */ struct ng_devinfo { char device[32]; char name[64]; int flags; }; /* --------------------------------------------------------------------- */ /* capture/overlay interface driver */ struct ng_vid_driver { const char *name; /* open/close */ void* (*open)(char *device, int req_flags); int (*close)(void *handle); /* attributes */ char* (*get_devname)(void *handle); int (*capabilities)(void *handle); struct ng_attribute* (*list_attrs)(void *handle); void (*get_min_size)(void *handle, int *min_width, int *min_height); /* overlay */ int (*setupfb)(void *handle, struct ng_video_fmt *fmt, void *base); int (*overlay)(void *handle, struct ng_video_fmt *fmt, int x, int y, struct OVERLAY_CLIP *oc, int count, int aspect); /* capture */ int (*setformat)(void *handle, struct ng_video_fmt *fmt); int (*startvideo)(void *handle, int fps, unsigned int buffers); void (*stopvideo)(void *handle); struct ng_video_buf* (*nextframe)(void *handle); /* video frame */ struct ng_video_buf* (*getimage)(void *handle); /* single image */ /* tuner */ unsigned long (*getfreq)(void *handle); void (*setfreq)(void *handle, unsigned long freq); int (*is_tuned)(void *handle); struct list_head list; }; /* --------------------------------------------------------------------- */ /* sound driver */ struct ng_dsp_driver { const char *name; void* (*open)(char *device, struct ng_audio_fmt *fmt, int record); void (*close)(void *handle); int (*fd)(void *handle); int (*startrec)(void *handle); struct ng_audio_buf* (*read)(void *handle, int64_t stopby); struct ng_audio_buf* (*write)(void *handle, struct ng_audio_buf *buf); int64_t (*latency)(void *handle); struct list_head list; }; struct ng_mix_driver { const char *name; struct ng_devinfo* (*probe)(void); struct ng_devinfo* (*channels)(char *device); void* (*open)(char *device); struct ng_attribute* (*volctl)(void *handle, char *channel); void (*close)(void *handle); struct list_head list; }; /* --------------------------------------------------------------------- */ /* color space converters */ struct ng_video_conv { unsigned int fmtid_in; unsigned int fmtid_out; void* (*init)(struct ng_video_fmt *out, void *priv); void (*frame)(void *handle, struct ng_video_buf *out, struct ng_video_buf *in); void (*fini)(void *handle); void *priv; struct list_head list; }; struct ng_convert_handle { struct ng_video_fmt ifmt; struct ng_video_fmt ofmt; int isize; int osize; struct ng_video_conv *conv; void *chandle; }; struct ng_convert_handle* ng_convert_alloc(struct ng_video_conv *conv, struct ng_video_fmt *i, struct ng_video_fmt *o); void ng_convert_init(struct ng_convert_handle *h); struct ng_video_buf* ng_convert_frame(struct ng_convert_handle *h, struct ng_video_buf *dest, struct ng_video_buf *buf); void ng_convert_fini(struct ng_convert_handle *h); struct ng_video_buf* ng_convert_single(struct ng_convert_handle *h, struct ng_video_buf *in); /* --------------------------------------------------------------------- */ /* audio converters */ struct ng_audio_conv { unsigned int fmtid_in; unsigned int fmtid_out; void* (*init)(void *priv); struct ng_audio_buf* (*frame)(void *handle, struct ng_audio_buf *in); void (*fini)(void *handle); void *priv; struct list_head list; }; /* --------------------------------------------------------------------- */ /* filters */ struct ng_filter { char *name; int fmts; struct ng_attribute* attrs; void* (*init)(struct ng_video_fmt *fmt); struct ng_video_buf* (*frame)(void *handle, struct ng_video_buf *in); void (*fini)(void *handle); struct list_head list; }; /* --------------------------------------------------------------------- */ /* must be changed if we break compatibility */ #define NG_PLUGIN_MAGIC 0x20030129 extern struct list_head ng_conv; extern struct list_head ng_aconv; extern struct list_head ng_filters; extern struct list_head ng_writers; extern struct list_head ng_readers; extern struct list_head ng_vid_drivers; extern struct list_head ng_dsp_drivers; extern struct list_head ng_mix_drivers; int ng_conv_register(int magic, char *plugname, struct ng_video_conv *list, int count); int ng_aconv_register(int magic, char *plugname, struct ng_audio_conv *list, int count); int ng_filter_register(int magic, char *plugname, struct ng_filter *filter); int ng_writer_register(int magic, char *plugname, struct ng_writer *writer); int ng_reader_register(int magic, char *plugname, struct ng_reader *reader); int ng_vid_driver_register(int magic, char *plugname, struct ng_vid_driver *driver); int ng_dsp_driver_register(int magic, char *plugname, struct ng_dsp_driver *driver); int ng_mix_driver_register(int magic, char *plugname, struct ng_mix_driver *driver); struct ng_video_conv* ng_conv_find_to(unsigned int out, int *i); struct ng_video_conv* ng_conv_find_from(unsigned int out, int *i); struct ng_video_conv* ng_conv_find_match(unsigned int in, unsigned int out); const struct ng_vid_driver* ng_vid_open(char **device, char *driver, struct ng_video_fmt *screen, void *base, void **handle); const struct ng_dsp_driver* ng_dsp_open(char *device, struct ng_audio_fmt *fmt, int record, void **handle); struct ng_attribute* ng_mix_init(char *device, char *channel); struct ng_reader* ng_find_reader(char *filename); int64_t ng_tofday_to_timestamp(struct timeval *tv); int64_t ng_get_timestamp(void); void ng_check_clipping(int width, int height, int xadjust, int yadjust, struct OVERLAY_CLIP *oc, int *count); struct ng_video_buf* ng_filter_single(struct ng_filter *filter, struct ng_video_buf *in); /* --------------------------------------------------------------------- */ void ng_init(void); void ng_lut_init(unsigned long red_mask, unsigned long green_mask, unsigned long blue_mask, unsigned int fmtid, int swap); void ng_rgb24_to_lut2(unsigned char *dest, unsigned char *src, int p); void ng_rgb24_to_lut4(unsigned char *dest, unsigned char *src, int p); /* --------------------------------------------------------------------- */ /* internal stuff starts here */ #ifdef NG_PRIVATE /* init functions */ void ng_color_packed_init(void); void ng_color_yuv2rgb_init(void); void ng_writefile_init(void); /* for yuv2rgb using lookup tables (color_lut.c, color_yuv2rgb.c) */ extern unsigned long ng_lut_red[256]; extern unsigned long ng_lut_green[256]; extern unsigned long ng_lut_blue[256]; void ng_yuv422_to_lut2(unsigned char *dest, unsigned char *s, int p); void ng_yuv422_to_lut4(unsigned char *dest, unsigned char *s, int p); void ng_yuv420p_to_lut2(void *h, struct ng_video_buf *out, struct ng_video_buf *in); void ng_yuv420p_to_lut4(void *h, struct ng_video_buf *out, struct ng_video_buf *in); void ng_yuv422p_to_lut2(void *h, struct ng_video_buf *out, struct ng_video_buf *in); void ng_yuv422p_to_lut4(void *h, struct ng_video_buf *out, struct ng_video_buf *in); /* color_common.c stuff */ void* ng_packed_init(struct ng_video_fmt *out, void *priv); void ng_packed_frame(void *handle, struct ng_video_buf *out, struct ng_video_buf *in); void* ng_conv_nop_init(struct ng_video_fmt *out, void *priv); void ng_conv_nop_fini(void *handle); #define NG_GENERIC_PACKED \ .init = ng_packed_init, \ .frame = ng_packed_frame, \ .fini = ng_conv_nop_fini #endif /* NG_PRIVATE */ /* --------------------------------------------------------------------- */ /* * Local variables: * compile-command: "(cd ..; make)" * End: */