| 1 | /* |
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| 2 | mediastreamer2 library - modular sound and video processing and streaming |
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| 3 | Copyright (C) 2006 Simon MORLAT (simon.morlat@linphone.org) |
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| 4 | |
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| 5 | This program is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU General Public License |
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| 7 | as published by the Free Software Foundation; either version 2 |
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| 8 | of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | This program is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | GNU General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | */ |
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| 19 | |
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| 20 | #ifdef __APPLE__ |
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| 21 | |
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| 22 | #include "mediastreamer-config.h" |
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| 23 | |
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| 24 | #include <fcntl.h> |
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| 25 | #include <unistd.h> |
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| 26 | #include <sys/stat.h> |
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| 27 | #include <sys/types.h> |
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| 28 | #include <sys/ioctl.h> |
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| 29 | #include <errno.h> |
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| 30 | #include <string.h> |
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| 31 | |
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| 32 | #include "mediastreamer2/msvideo.h" |
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| 33 | #include "mediastreamer2/msticker.h" |
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| 34 | #include "mediastreamer2/msv4l.h" |
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| 35 | #include "nowebcam.h" |
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| 36 | |
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| 37 | // build for carbon |
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| 38 | #define TARGET_API_MAC_CARBON 1 |
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| 39 | |
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| 40 | #if __APPLE_CC__ |
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| 41 | #include <Carbon/Carbon.h> |
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| 42 | #include <QuicKTime/QuickTime.h> |
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| 43 | #else |
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| 44 | #include <ConditionalMacros.h> |
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| 45 | #include <QuickTimeComponents.h> |
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| 46 | #include <TextUtils.h> |
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| 47 | |
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| 48 | #include <stdio.h> |
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| 49 | #endif |
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| 50 | |
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| 51 | typedef struct V4lState{ |
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| 52 | SeqGrabComponent seqgrab; |
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| 53 | SGChannel sgchanvideo; |
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| 54 | GWorldPtr pgworld; |
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| 55 | ImageSequence decomseq; |
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| 56 | |
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| 57 | char *mmapdbuf; |
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| 58 | int msize;/*mmapped size*/ |
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| 59 | MSVideoSize vsize; |
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| 60 | MSVideoSize got_vsize; |
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| 61 | int pix_fmt; |
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| 62 | int int_pix_fmt; /*internal pixel format */ |
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| 63 | mblk_t *mire; |
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| 64 | queue_t rq; |
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| 65 | ms_mutex_t mutex; |
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| 66 | int frame_ind; |
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| 67 | int frame_max; |
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| 68 | float fps; |
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| 69 | float start_time; |
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| 70 | int frame_count; |
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| 71 | int queued; |
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| 72 | bool_t run; |
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| 73 | bool_t usemire; |
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| 74 | }V4lState; |
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| 75 | |
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| 76 | static void v4m_init(MSFilter *f){ |
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| 77 | V4lState *s=ms_new0(V4lState,1); |
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| 78 | s->seqgrab=NULL; |
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| 79 | s->sgchanvideo=NULL; |
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| 80 | s->pgworld=NULL; |
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| 81 | s->decomseq=0; |
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| 82 | |
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| 83 | s->run=FALSE; |
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| 84 | s->mmapdbuf=NULL; |
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| 85 | s->vsize.width=MS_VIDEO_SIZE_CIF_W; |
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| 86 | s->vsize.height=MS_VIDEO_SIZE_CIF_H; |
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| 87 | s->pix_fmt=MS_RGB24; |
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| 88 | qinit(&s->rq); |
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| 89 | s->mire=NULL; |
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| 90 | ms_mutex_init(&s->mutex,NULL); |
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| 91 | s->start_time=0; |
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| 92 | s->frame_count=-1; |
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| 93 | s->fps=15; |
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| 94 | s->usemire=(getenv("DEBUG")!=NULL); |
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| 95 | s->queued=0; |
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| 96 | f->data=s; |
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| 97 | } |
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| 98 | |
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| 99 | |
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| 100 | #define BailErr(x) {err = x; if(err != noErr) goto bail;} |
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| 101 | |
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| 102 | pascal OSErr sgdata_callback(SGChannel c, Ptr p, long len, long *offset, long chRefCon, TimeValue time, short writeType, long refCon); |
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| 103 | pascal OSErr sgdata_callback(SGChannel c, Ptr p, long len, long *offset, long chRefCon, TimeValue time, short writeType, long refCon) |
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| 104 | { |
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| 105 | #pragma unused(offset,chRefCon,time,writeType) |
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| 106 | |
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| 107 | CodecFlags ignore; |
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| 108 | V4lState *s=(V4lState *)refCon; |
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| 109 | ComponentResult err = noErr; |
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| 110 | |
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| 111 | if (!s) goto bail; |
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| 112 | |
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| 113 | Rect boundsRect = {0, 0, s->vsize.height, s->vsize.width}; /* 240 , 320*/ |
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| 114 | if (s->pgworld) { |
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| 115 | |
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| 116 | if (s->decomseq == 0) { |
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| 117 | Rect sourceRect = { 0, 0 }; |
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| 118 | MatrixRecord scaleMatrix; |
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| 119 | ImageDescriptionHandle imageDesc = (ImageDescriptionHandle)NewHandle(0); |
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| 120 | |
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| 121 | err = SGGetChannelSampleDescription(c,(Handle)imageDesc); |
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| 122 | BailErr(err); |
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| 123 | |
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| 124 | // make a scaling matrix for the sequence |
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| 125 | sourceRect.right = (**imageDesc).width; |
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| 126 | sourceRect.bottom = (**imageDesc).height; |
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| 127 | RectMatrix(&scaleMatrix, &sourceRect, &boundsRect); |
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| 128 | |
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| 129 | err = DecompressSequenceBegin(&s->decomseq, // pointer to field to receive unique ID for sequence |
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| 130 | imageDesc, // handle to image description structure |
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| 131 | s->pgworld, // port for the DESTINATION image |
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| 132 | NULL, // graphics device handle, if port is set, set to NULL |
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| 133 | NULL, // source rectangle defining the portion of the image to decompress |
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| 134 | &scaleMatrix, // transformation matrix |
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| 135 | srcCopy, // transfer mode specifier |
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| 136 | NULL, // clipping region in dest. coordinate system to use as a mask |
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| 137 | 0, // flags |
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| 138 | codecNormalQuality, // accuracy in decompression |
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| 139 | bestSpeedCodec); // compressor identifier or special identifiers ie. bestSpeedCodec |
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| 140 | BailErr(err); |
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| 141 | |
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| 142 | DisposeHandle((Handle)imageDesc); |
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| 143 | imageDesc = NULL; |
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| 144 | } |
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| 145 | |
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| 146 | // decompress a frame into the GWorld - can queue a frame for async decompression when passed in a completion proc |
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| 147 | // once the image is in the GWorld it can be manipulated at will |
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| 148 | err = DecompressSequenceFrameS(s->decomseq, // sequence ID returned by DecompressSequenceBegin |
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| 149 | p, // pointer to compressed image data |
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| 150 | len, // size of the buffer |
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| 151 | 0, // in flags |
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| 152 | &ignore, // out flags |
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| 153 | NULL); // async completion proc |
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| 154 | BailErr(err); |
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| 155 | |
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| 156 | { |
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| 157 | unsigned line; |
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| 158 | mblk_t *buf; |
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| 159 | int size = s->vsize.width * s->vsize.height * 3; |
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| 160 | buf=allocb(size,0); |
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| 161 | |
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| 162 | PixMap * pixmap = *GetGWorldPixMap(s->pgworld); |
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| 163 | uint8_t * data; |
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| 164 | unsigned rowBytes = pixmap->rowBytes & (((unsigned short) 0xFFFF) >> 2); |
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| 165 | unsigned pixelSize = pixmap->pixelSize / 8; // Pixel size in bytes |
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| 166 | unsigned lineOffset = rowBytes - s->vsize.width * pixelSize; |
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| 167 | |
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| 168 | data = (uint8_t *) GetPixBaseAddr(GetGWorldPixMap(s->pgworld)); |
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| 169 | |
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| 170 | for (line = 0 ; line < s->vsize.height ; line++) { |
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| 171 | unsigned offset = line * (s->vsize.width * pixelSize + lineOffset); |
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| 172 | memcpy(buf->b_wptr + ((line * s->vsize.width) * pixelSize), data + offset, (rowBytes - lineOffset)); |
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| 173 | } |
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| 174 | |
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| 175 | if (s->pix_fmt==MS_RGB24) |
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| 176 | { |
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| 177 | /* Conversion from top down bottom up (BGR to RGB and flip) */ |
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| 178 | unsigned long Index,nPixels; |
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| 179 | unsigned char *blue; |
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| 180 | unsigned char tmp; |
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| 181 | short iPixelSize; |
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| 182 | |
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| 183 | blue=buf->b_wptr; |
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| 184 | |
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| 185 | nPixels=s->vsize.width*s->vsize.height; |
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| 186 | iPixelSize=24/8; |
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| 187 | |
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| 188 | for(Index=0;Index!=nPixels;Index++) // For each pixel |
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| 189 | { |
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| 190 | tmp=*blue; |
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| 191 | *blue=*(blue+2); |
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| 192 | *(blue+2)=tmp; |
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| 193 | blue+=iPixelSize; |
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| 194 | } |
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| 195 | } |
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| 196 | |
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| 197 | buf->b_wptr+=size; |
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| 198 | //ms_mutex_lock(&s->mutex); /* called during SGIdle? */ |
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| 199 | putq(&s->rq, buf); |
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| 200 | //ms_mutex_unlock(&s->mutex); |
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| 201 | } |
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| 202 | } |
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| 203 | |
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| 204 | bail: |
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| 205 | return err; |
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| 206 | } |
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| 207 | |
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| 208 | static int v4m_close(V4lState *s) |
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| 209 | { |
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| 210 | if(s->seqgrab) |
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| 211 | CloseComponent(s->seqgrab); |
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| 212 | s->seqgrab=NULL; |
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| 213 | if (s->decomseq) |
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| 214 | CDSequenceEnd(s->decomseq); |
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| 215 | s->decomseq=NULL; |
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| 216 | if (s->pgworld!=NULL) |
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| 217 | DisposeGWorld(s->pgworld); |
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| 218 | s->pgworld=NULL; |
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| 219 | return 0; |
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| 220 | } |
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| 221 | |
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| 222 | static int sequence_grabber_start(V4lState *s) |
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| 223 | { |
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| 224 | int err; |
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| 225 | Rect theRect = {0, 0, s->vsize.height, s->vsize.width}; |
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| 226 | |
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| 227 | err = QTNewGWorld(&(s->pgworld), // returned GWorld |
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| 228 | k24BGRPixelFormat, |
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| 229 | &theRect, // bounding rectangle |
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| 230 | 0, // color table |
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| 231 | NULL, // graphic device handle |
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| 232 | 0); // flags |
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| 233 | if (err!=noErr) |
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| 234 | { |
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| 235 | return -1; |
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| 236 | } |
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| 237 | |
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| 238 | if(!LockPixels(GetPortPixMap(s->pgworld))) |
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| 239 | { |
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| 240 | v4m_close(s); |
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| 241 | return -1; |
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| 242 | } |
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| 243 | |
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| 244 | s->seqgrab = OpenDefaultComponent(SeqGrabComponentType, 0); |
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| 245 | err = SGInitialize(s->seqgrab); |
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| 246 | if (err!=noErr) |
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| 247 | { |
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| 248 | v4m_close(s); |
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| 249 | return -1; |
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| 250 | } |
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| 251 | err = SGSetDataRef(s->seqgrab, 0, 0, seqGrabDontMakeMovie); |
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| 252 | if (err!=noErr) |
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| 253 | { |
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| 254 | v4m_close(s); |
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| 255 | return -1; |
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| 256 | } |
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| 257 | |
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| 258 | err = SGSetGWorld(s->seqgrab, s->pgworld, GetMainDevice()); |
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| 259 | if (err!=noErr) |
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| 260 | { |
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| 261 | v4m_close(s); |
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| 262 | return -1; |
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| 263 | } |
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| 264 | |
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| 265 | err = SGNewChannel(s->seqgrab, VideoMediaType, &s->sgchanvideo); |
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| 266 | if (err!=noErr) |
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| 267 | { |
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| 268 | v4m_close(s); |
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| 269 | return -1; |
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| 270 | } |
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| 271 | |
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| 272 | err = SGSetChannelBounds(s->sgchanvideo, &theRect); |
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| 273 | if (err!=noErr) |
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| 274 | { |
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| 275 | v4m_close(s); |
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| 276 | return -1; |
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| 277 | } |
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| 278 | |
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| 279 | err = SGSetChannelUsage(s->sgchanvideo, seqGrabRecord); |
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| 280 | if (err!=noErr) |
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| 281 | { |
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| 282 | v4m_close(s); |
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| 283 | return -1; |
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| 284 | } |
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| 285 | |
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| 286 | err = SGSetDataProc(s->seqgrab,NewSGDataUPP(sgdata_callback),(long)s); |
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| 287 | if (err!=noErr) |
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| 288 | { |
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| 289 | v4m_close(s); |
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| 290 | return -1; |
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| 291 | } |
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| 292 | |
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| 293 | err = SGStartRecord(s->seqgrab); |
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| 294 | if (err!=noErr) |
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| 295 | { |
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| 296 | v4m_close(s); |
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| 297 | return -1; |
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| 298 | } |
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| 299 | |
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| 300 | return 0; |
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| 301 | } |
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| 302 | |
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| 303 | static int v4m_start(MSFilter *f, void *arg) |
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| 304 | { |
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| 305 | V4lState *s=(V4lState*)f->data; |
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| 306 | int err=0; |
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| 307 | |
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| 308 | err = sequence_grabber_start(s); |
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| 309 | |
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| 310 | if (err!=0) |
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| 311 | { |
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| 312 | s->pix_fmt=MS_YUV420P; |
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| 313 | s->vsize.width=MS_VIDEO_SIZE_CIF_W; |
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| 314 | s->vsize.height=MS_VIDEO_SIZE_CIF_H; |
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| 315 | return 0; |
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| 316 | } |
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| 317 | |
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| 318 | ms_message("v4m video device opened."); |
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| 319 | s->pix_fmt=MS_RGB24; |
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| 320 | |
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| 321 | return 0; |
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| 322 | } |
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| 323 | |
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| 324 | static void v4m_start_capture(V4lState *s){ |
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| 325 | if (s->seqgrab!=NULL){ |
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| 326 | s->run=TRUE; |
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| 327 | } |
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| 328 | } |
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| 329 | |
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| 330 | static int v4m_stop(MSFilter *f, void *arg){ |
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| 331 | V4lState *s=(V4lState*)f->data; |
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| 332 | if (s->seqgrab!=NULL){ |
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| 333 | ms_mutex_lock(&s->mutex); |
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| 334 | SGStop(s->seqgrab); |
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| 335 | v4m_close(s); |
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| 336 | flushq(&s->rq,0); |
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| 337 | ms_mutex_unlock(&s->mutex); |
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| 338 | } |
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| 339 | return 0; |
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| 340 | } |
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| 341 | |
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| 342 | static void v4m_stop_capture(V4lState *s){ |
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| 343 | if (s->run){ |
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| 344 | s->run=FALSE; |
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| 345 | ms_message("v4m capture stopped."); |
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| 346 | } |
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| 347 | } |
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| 348 | |
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| 349 | |
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| 350 | static void v4m_uninit(MSFilter *f){ |
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| 351 | V4lState *s=(V4lState*)f->data; |
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| 352 | if (s->seqgrab!=NULL) v4m_stop(f,NULL); |
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| 353 | //ms_free(s->dev); |
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| 354 | flushq(&s->rq,0); |
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| 355 | ms_mutex_destroy(&s->mutex); |
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| 356 | freemsg(s->mire); |
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| 357 | ms_free(s); |
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| 358 | } |
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| 359 | |
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| 360 | static mblk_t * v4m_make_mire(V4lState *s){ |
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| 361 | unsigned char *data; |
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| 362 | int i,j,line,pos; |
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| 363 | int patternw=s->vsize.width/6; |
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| 364 | int patternh=s->vsize.height/6; |
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| 365 | int red,green=0,blue=0; |
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| 366 | if (s->mire==NULL){ |
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| 367 | s->mire=allocb(s->vsize.width*s->vsize.height*3,0); |
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| 368 | s->mire->b_wptr=s->mire->b_datap->db_lim; |
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| 369 | } |
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| 370 | data=s->mire->b_rptr; |
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| 371 | for (i=0;i<s->vsize.height;++i){ |
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| 372 | line=i*s->vsize.width*3; |
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| 373 | if ( ((i+s->frame_ind)/patternh) & 0x1) red=255; |
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| 374 | else red= 0; |
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| 375 | for (j=0;j<s->vsize.width;++j){ |
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| 376 | pos=line+(j*3); |
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| 377 | |
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| 378 | if ( ((j+s->frame_ind)/patternw) & 0x1) blue=255; |
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| 379 | else blue= 0; |
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| 380 | |
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| 381 | data[pos]=red; |
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| 382 | data[pos+1]=green; |
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| 383 | data[pos+2]=blue; |
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| 384 | } |
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| 385 | } |
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| 386 | s->frame_ind++; |
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| 387 | return s->mire; |
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| 388 | } |
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| 389 | |
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| 390 | static mblk_t * v4m_make_nowebcam(V4lState *s){ |
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| 391 | if (s->mire==NULL && s->frame_ind==0){ |
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| 392 | s->mire=ms_load_nowebcam(&s->vsize, -1); |
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| 393 | } |
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| 394 | s->frame_ind++; |
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| 395 | return s->mire; |
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| 396 | } |
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| 397 | |
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| 398 | static void v4m_process(MSFilter * obj){ |
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| 399 | V4lState *s=(V4lState*)obj->data; |
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| 400 | uint32_t timestamp; |
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| 401 | int cur_frame; |
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| 402 | if (s->frame_count==-1){ |
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| 403 | s->start_time=obj->ticker->time; |
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| 404 | s->frame_count=0; |
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| 405 | } |
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| 406 | |
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| 407 | ms_mutex_lock(&s->mutex); |
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| 408 | |
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| 409 | if (s->seqgrab!=NULL) |
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| 410 | { |
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| 411 | SGIdle(s->seqgrab); |
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| 412 | } |
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| 413 | |
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| 414 | cur_frame=((obj->ticker->time-s->start_time)*s->fps/1000.0); |
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| 415 | if (cur_frame>=s->frame_count){ |
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| 416 | mblk_t *om=NULL; |
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| 417 | /*keep the most recent frame if several frames have been captured */ |
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| 418 | if (s->seqgrab!=NULL){ |
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| 419 | om=getq(&s->rq); |
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| 420 | }else{ |
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| 421 | if (s->pix_fmt==MS_YUV420P |
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| 422 | && s->vsize.width==MS_VIDEO_SIZE_CIF_W |
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| 423 | && s->vsize.height==MS_VIDEO_SIZE_CIF_H) |
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| 424 | { |
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| 425 | if (s->usemire){ |
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| 426 | om=dupmsg(v4m_make_mire(s)); |
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| 427 | }else { |
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| 428 | mblk_t *tmpm=v4m_make_nowebcam(s); |
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| 429 | if (tmpm) om=dupmsg(tmpm); |
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| 430 | } |
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| 431 | } |
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| 432 | } |
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| 433 | if (om!=NULL){ |
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| 434 | timestamp=obj->ticker->time*90;/* rtp uses a 90000 Hz clockrate for video*/ |
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| 435 | mblk_set_timestamp_info(om,timestamp); |
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| 436 | mblk_set_marker_info(om,TRUE); |
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| 437 | ms_queue_put(obj->outputs[0],om); |
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| 438 | /*ms_message("picture sent");*/ |
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| 439 | s->frame_count++; |
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| 440 | } |
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| 441 | }else flushq(&s->rq,0); |
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| 442 | |
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| 443 | ms_mutex_unlock(&s->mutex); |
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| 444 | } |
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| 445 | |
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| 446 | static void v4m_preprocess(MSFilter *f){ |
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| 447 | V4lState *s=(V4lState*)f->data; |
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| 448 | v4m_start_capture(s); |
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| 449 | } |
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| 450 | |
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| 451 | static void v4m_postprocess(MSFilter *f){ |
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| 452 | V4lState *s=(V4lState*)f->data; |
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| 453 | v4m_stop_capture(s); |
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| 454 | } |
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| 455 | |
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| 456 | static int v4m_set_fps(MSFilter *f, void *arg){ |
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| 457 | V4lState *s=(V4lState*)f->data; |
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| 458 | s->fps=*((float*)arg); |
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| 459 | s->frame_count=-1; |
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| 460 | return 0; |
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| 461 | } |
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| 462 | |
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| 463 | static int v4m_get_pix_fmt(MSFilter *f,void *arg){ |
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| 464 | V4lState *s=(V4lState*)f->data; |
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| 465 | *((MSPixFmt*)arg) = s->pix_fmt; |
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| 466 | return 0; |
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| 467 | } |
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| 468 | |
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| 469 | static int v4m_set_vsize(MSFilter *f, void *arg){ |
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| 470 | V4lState *s=(V4lState*)f->data; |
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| 471 | s->vsize=*((MSVideoSize*)arg); |
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| 472 | return 0; |
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| 473 | } |
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| 474 | |
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| 475 | static int v4m_get_vsize(MSFilter *f, void *arg){ |
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| 476 | V4lState *s=(V4lState*)f->data; |
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| 477 | *(MSVideoSize*)arg=s->vsize; |
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| 478 | return 0; |
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| 479 | } |
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| 480 | |
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| 481 | static MSFilterMethod methods[]={ |
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| 482 | { MS_FILTER_SET_FPS , v4m_set_fps }, |
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| 483 | { MS_FILTER_GET_PIX_FMT , v4m_get_pix_fmt }, |
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| 484 | { MS_FILTER_SET_VIDEO_SIZE, v4m_set_vsize }, |
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| 485 | { MS_V4L_START , v4m_start }, |
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| 486 | { MS_V4L_STOP , v4m_stop }, |
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| 487 | { MS_FILTER_GET_VIDEO_SIZE, v4m_get_vsize }, |
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| 488 | { 0 , NULL } |
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| 489 | }; |
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| 490 | |
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| 491 | MSFilterDesc ms_v4l_desc={ |
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| 492 | .id=MS_V4L_ID, |
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| 493 | .name="MSV4m", |
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| 494 | .text=N_("A video for macosx compatible source filter to stream pictures."), |
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| 495 | .ninputs=0, |
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| 496 | .noutputs=1, |
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| 497 | .category=MS_FILTER_OTHER, |
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| 498 | .init=v4m_init, |
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| 499 | .preprocess=v4m_preprocess, |
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| 500 | .process=v4m_process, |
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| 501 | .postprocess=v4m_postprocess, |
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| 502 | .uninit=v4m_uninit, |
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| 503 | .methods=methods |
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| 504 | }; |
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| 505 | |
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| 506 | MS_FILTER_DESC_EXPORT(ms_v4l_desc) |
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| 507 | |
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| 508 | #endif |
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