libavdevice/libdc1394.c

   1 /*
   2  * IIDC1394 grab interface (uses libdc1394 and libraw1394)
   3  * Copyright (c) 2004 Roman Shaposhnik
   4  * Copyright (c) 2008 Alessandro Sappia
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include "config.h"
  24 #include "libavformat/avformat.h"
  25
  26 #if HAVE_LIBDC1394_2
  27 #include <dc1394/dc1394.h>
  28 #elif HAVE_LIBDC1394_1
  29 #include <libraw1394/raw1394.h>
  30 #include <libdc1394/dc1394_control.h>
  31
  32 #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
  33 #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
  34 #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
  35 #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
  36 #define DC1394_FRAMERATE_3_75  FRAMERATE_3_75
  37 #define DC1394_FRAMERATE_7_5   FRAMERATE_7_5
  38 #define DC1394_FRAMERATE_15    FRAMERATE_15
  39 #define DC1394_FRAMERATE_30    FRAMERATE_30
  40 #define DC1394_FRAMERATE_60    FRAMERATE_60
  41 #define DC1394_FRAMERATE_120   FRAMERATE_120
  42 #define DC1394_FRAMERATE_240   FRAMERATE_240
  43 #endif
  44
  45 #undef free
  46
  47 typedef struct dc1394_data {
  48 #if HAVE_LIBDC1394_1
  49     raw1394handle_t handle;
  50     dc1394_cameracapture camera;
  51 #elif HAVE_LIBDC1394_2
  52     dc1394_t *d;
  53     dc1394camera_t *camera;
  54     dc1394video_frame_t *frame;
  55 #endif
  56     int current_frame;
  57     int fps;
  58
  59     AVPacket packet;
  60 } dc1394_data;
  61
  62 struct dc1394_frame_format {
  63     int width;
  64     int height;
  65     enum PixelFormat pix_fmt;
  66     int frame_size_id;
  67 } dc1394_frame_formats[] = {
  68     { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
  69     { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
  70     { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
  71     { 0, 0, 0, 0 } /* gotta be the last one */
  72 };
  73
  74 struct dc1394_frame_rate {
  75     int frame_rate;
  76     int frame_rate_id;
  77 } dc1394_frame_rates[] = {
  78     {  1875, DC1394_FRAMERATE_1_875 },
  79     {  3750, DC1394_FRAMERATE_3_75  },
  80     {  7500, DC1394_FRAMERATE_7_5   },
  81     { 15000, DC1394_FRAMERATE_15    },
  82     { 30000, DC1394_FRAMERATE_30    },
  83     { 60000, DC1394_FRAMERATE_60    },
  84     {120000, DC1394_FRAMERATE_120   },
  85     {240000, DC1394_FRAMERATE_240    },
  86     { 0, 0 } /* gotta be the last one */
  87 };
  88
  89 static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
  90                                      struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
  91 {
  92     dc1394_data* dc1394 = c->priv_data;
  93     AVStream* vst;
  94     struct dc1394_frame_format *fmt;
  95     struct dc1394_frame_rate *fps;
  96     enum PixelFormat pix_fmt = ap->pix_fmt == PIX_FMT_NONE ? PIX_FMT_UYVY422 : ap->pix_fmt; /* defaults */
  97     int width                = !ap->width ? 320 : ap->width;
  98     int height               = !ap->height ? 240 : ap->height;
  99     int frame_rate           = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);
 100
 101     for (fmt = dc1394_frame_formats; fmt->width; fmt++)
 102          if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
 103              break;
 104
 105     for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
 106          if (fps->frame_rate == frame_rate)
 107              break;
 108
 109     if (!fps->frame_rate || !fmt->width) {
 110         av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", avcodec_get_pix_fmt_name(pix_fmt),
 111                                                                                                 width, height, frame_rate);
 112         goto out;
 113     }
 114
 115     /* create a video stream */
 116     vst = av_new_stream(c, 0);
 117     if (!vst)
 118         goto out;
 119     av_set_pts_info(vst, 64, 1, 1000);
 120     vst->codec->codec_type = CODEC_TYPE_VIDEO;
 121     vst->codec->codec_id = CODEC_ID_RAWVIDEO;
 122     vst->codec->time_base.den = fps->frame_rate;
 123     vst->codec->time_base.num = 1000;
 124     vst->codec->width = fmt->width;
 125     vst->codec->height = fmt->height;
 126     vst->codec->pix_fmt = fmt->pix_fmt;
 127
 128     /* packet init */
 129     av_init_packet(&dc1394->packet);
 130     dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
 131     dc1394->packet.stream_index = vst->index;
 132     dc1394->packet.flags |= PKT_FLAG_KEY;
 133
 134     dc1394->current_frame = 0;
 135     dc1394->fps = fps->frame_rate;
 136
 137     vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
 138     *select_fps = fps;
 139     *select_fmt = fmt;
 140     return 0;
 141 out:
 142     return -1;
 143 }
 144
 145 #if HAVE_LIBDC1394_1
 146 static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
 147 {
 148     dc1394_data* dc1394 = c->priv_data;
 149     AVStream* vst;
 150     nodeid_t* camera_nodes;
 151     int res;
 152     struct dc1394_frame_format *fmt = NULL;
 153     struct dc1394_frame_rate *fps = NULL;
 154
 155     if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
 156         return -1;
 157
 158     /* Now let us prep the hardware. */
 159     dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
 160     if (!dc1394->handle) {
 161         av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
 162         goto out;
 163     }
 164     camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
 165     if (!camera_nodes || camera_nodes[ap->channel] == DC1394_NO_CAMERA) {
 166         av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", ap->channel);
 167         goto out_handle;
 168     }
 169     res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[ap->channel],
 170                                    0,
 171                                    FORMAT_VGA_NONCOMPRESSED,
 172                                    fmt->frame_size_id,
 173                                    SPEED_400,
 174                                    fps->frame_rate_id, 8, 1,
 175                                    c->filename,
 176                                    &dc1394->camera);
 177     dc1394_free_camera_nodes(camera_nodes);
 178     if (res != DC1394_SUCCESS) {
 179         av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
 180         goto out_handle;
 181     }
 182
 183     res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
 184     if (res != DC1394_SUCCESS) {
 185         av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
 186         goto out_handle_dma;
 187     }
 188
 189     return 0;
 190
 191 out_handle_dma:
 192     dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
 193     dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
 194 out_handle:
 195     dc1394_destroy_handle(dc1394->handle);
 196 out:
 197     return -1;
 198 }
 199
 200 static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
 201 {
 202     struct dc1394_data *dc1394 = c->priv_data;
 203     int res;
 204
 205     /* discard stale frame */
 206     if (dc1394->current_frame++) {
 207         if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
 208             av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
 209     }
 210
 211     res = dc1394_dma_single_capture(&dc1394->camera);
 212
 213     if (res == DC1394_SUCCESS) {
 214         dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
 215         dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->fps;
 216         res = dc1394->packet.size;
 217     } else {
 218         av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
 219         dc1394->packet.data = NULL;
 220         res = -1;
 221     }
 222
 223     *pkt = dc1394->packet;
 224     return res;
 225 }
 226
 227 static int dc1394_v1_close(AVFormatContext * context)
 228 {
 229     struct dc1394_data *dc1394 = context->priv_data;
 230
 231     dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
 232     dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
 233     dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
 234     dc1394_destroy_handle(dc1394->handle);
 235
 236     return 0;
 237 }
 238
 239 #elif HAVE_LIBDC1394_2
 240 static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
 241 {
 242     dc1394_data* dc1394 = c->priv_data;
 243     dc1394camera_list_t *list;
 244     int res, i;
 245     struct dc1394_frame_format *fmt = NULL;
 246     struct dc1394_frame_rate *fps = NULL;
 247
 248     if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
 249        return -1;
 250
 251     /* Now let us prep the hardware. */
 252     dc1394->d = dc1394_new();
 253     dc1394_camera_enumerate (dc1394->d, &list);
 254     if ( !list || list->num == 0) {
 255         av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
 256         goto out;
 257     }
 258
 259     /* FIXME: To select a specific camera I need to search in list its guid */
 260     dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
 261     if (list->num > 1) {
 262         av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
 263     }
 264
 265     /* Freeing list of cameras */
 266     dc1394_camera_free_list (list);
 267
 268     /* Select MAX Speed possible from the cam */
 269     if (dc1394->camera->bmode_capable>0) {
 270        dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
 271        i = DC1394_ISO_SPEED_800;
 272     } else {
 273        i = DC1394_ISO_SPEED_400;
 274     }
 275
 276     for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
 277             res=dc1394_video_set_iso_speed(dc1394->camera, i);
 278     }
 279     if (res != DC1394_SUCCESS) {
 280         av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
 281         goto out_camera;
 282     }
 283
 284     if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
 285         av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
 286         goto out_camera;
 287     }
 288
 289     if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
 290         av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
 291         goto out_camera;
 292     }
 293     if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
 294         av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
 295         goto out_camera;
 296     }
 297
 298     if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
 299         av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
 300         goto out_camera;
 301     }
 302     return 0;
 303
 304 out_camera:
 305     dc1394_capture_stop(dc1394->camera);
 306     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
 307     dc1394_camera_free (dc1394->camera);
 308 out:
 309     dc1394_free(dc1394->d);
 310     return -1;
 311 }
 312
 313 static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
 314 {
 315     struct dc1394_data *dc1394 = c->priv_data;
 316     int res;
 317
 318     /* discard stale frame */
 319     if (dc1394->current_frame++) {
 320         if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
 321             av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
 322     }
 323
 324     res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
 325     if (res == DC1394_SUCCESS) {
 326         dc1394->packet.data = (uint8_t *)(dc1394->frame->image);
 327         dc1394->packet.pts = (dc1394->current_frame  * 1000000) / (dc1394->fps);
 328         res = dc1394->frame->image_bytes;
 329     } else {
 330         av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
 331         dc1394->packet.data = NULL;
 332         res = -1;
 333     }
 334
 335     *pkt = dc1394->packet;
 336     return res;
 337 }
 338
 339 static int dc1394_v2_close(AVFormatContext * context)
 340 {
 341     struct dc1394_data *dc1394 = context->priv_data;
 342
 343     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
 344     dc1394_capture_stop(dc1394->camera);
 345     dc1394_camera_free(dc1394->camera);
 346     dc1394_free(dc1394->d);
 347
 348     return 0;
 349 }
 350
 351 AVInputFormat libdc1394_demuxer = {
 352     .name           = "libdc1394",
 353     .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
 354     .priv_data_size = sizeof(struct dc1394_data),
 355     .read_header    = dc1394_v2_read_header,
 356     .read_packet    = dc1394_v2_read_packet,
 357     .read_close     = dc1394_v2_close,
 358     .flags          = AVFMT_NOFILE
 359 };
 360
 361 #endif
 362 #if HAVE_LIBDC1394_1
 363 AVInputFormat libdc1394_demuxer = {
 364     .name           = "libdc1394",
 365     .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
 366     .priv_data_size = sizeof(struct dc1394_data),
 367     .read_header    = dc1394_v1_read_header,
 368     .read_packet    = dc1394_v1_read_packet,
 369     .read_close     = dc1394_v1_close,
 370     .flags          = AVFMT_NOFILE
 371 };
 372 #endif