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 Libav. 7 * 8 * Libav 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 * Libav 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 Libav; 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#include "libavformat/internal.h" 26#include "libavutil/log.h" 27#include "libavutil/mathematics.h" 28#include "libavutil/opt.h" 29#include "libavutil/parseutils.h" 30#include "libavutil/pixdesc.h" 31 32#if HAVE_LIBDC1394_2 33#include <dc1394/dc1394.h> 34#elif HAVE_LIBDC1394_1 35#include <libraw1394/raw1394.h> 36#include <libdc1394/dc1394_control.h> 37 38#define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422 39#define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411 40#define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422 41#define DC1394_FRAMERATE_1_875 FRAMERATE_1_875 42#define DC1394_FRAMERATE_3_75 FRAMERATE_3_75 43#define DC1394_FRAMERATE_7_5 FRAMERATE_7_5 44#define DC1394_FRAMERATE_15 FRAMERATE_15 45#define DC1394_FRAMERATE_30 FRAMERATE_30 46#define DC1394_FRAMERATE_60 FRAMERATE_60 47#define DC1394_FRAMERATE_120 FRAMERATE_120 48#define DC1394_FRAMERATE_240 FRAMERATE_240 49#endif 50 51#undef free 52 53typedef struct dc1394_data { 54 AVClass *class; 55#if HAVE_LIBDC1394_1 56 raw1394handle_t handle; 57 dc1394_cameracapture camera; 58 int channel; 59#elif HAVE_LIBDC1394_2 60 dc1394_t *d; 61 dc1394camera_t *camera; 62 dc1394video_frame_t *frame; 63#endif 64 int current_frame; 65 int frame_rate; /**< frames per 1000 seconds (fps * 1000) */ 66 char *video_size; /**< String describing video size, set by a private option. */ 67 char *pixel_format; /**< Set by a private option. */ 68 char *framerate; /**< Set by a private option. */ 69 70 AVPacket packet; 71} dc1394_data; 72 73struct dc1394_frame_format { 74 int width; 75 int height; 76 enum PixelFormat pix_fmt; 77 int frame_size_id; 78} dc1394_frame_formats[] = { 79 { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, 80 { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, 81 { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, 82 { 0, 0, 0, 0 } /* gotta be the last one */ 83}; 84 85struct dc1394_frame_rate { 86 int frame_rate; 87 int frame_rate_id; 88} dc1394_frame_rates[] = { 89 { 1875, DC1394_FRAMERATE_1_875 }, 90 { 3750, DC1394_FRAMERATE_3_75 }, 91 { 7500, DC1394_FRAMERATE_7_5 }, 92 { 15000, DC1394_FRAMERATE_15 }, 93 { 30000, DC1394_FRAMERATE_30 }, 94 { 60000, DC1394_FRAMERATE_60 }, 95 {120000, DC1394_FRAMERATE_120 }, 96 {240000, DC1394_FRAMERATE_240 }, 97 { 0, 0 } /* gotta be the last one */ 98}; 99 100#define OFFSET(x) offsetof(dc1394_data, x) 101#define DEC AV_OPT_FLAG_DECODING_PARAM 102static const AVOption options[] = { 103#if HAVE_LIBDC1394_1 104 { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, 105#endif 106 { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC }, 107 { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC }, 108 { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC }, 109 { NULL }, 110}; 111 112static const AVClass libdc1394_class = { 113 .class_name = "libdc1394 indev", 114 .item_name = av_default_item_name, 115 .option = options, 116 .version = LIBAVUTIL_VERSION_INT, 117}; 118 119 120static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap, 121 struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) 122{ 123 dc1394_data* dc1394 = c->priv_data; 124 AVStream* vst; 125 struct dc1394_frame_format *fmt; 126 struct dc1394_frame_rate *fps; 127 enum PixelFormat pix_fmt; 128 int width, height; 129 AVRational framerate; 130 int ret = 0; 131 132 if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) { 133 av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); 134 ret = AVERROR(EINVAL); 135 goto out; 136 } 137 138 if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) { 139 av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size); 140 goto out; 141 } 142 if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) { 143 av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate); 144 goto out; 145 } 146 dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den); 147 148 for (fmt = dc1394_frame_formats; fmt->width; fmt++) 149 if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height) 150 break; 151 152 for (fps = dc1394_frame_rates; fps->frame_rate; fps++) 153 if (fps->frame_rate == dc1394->frame_rate) 154 break; 155 156 if (!fps->frame_rate || !fmt->width) { 157 av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", av_get_pix_fmt_name(pix_fmt), 158 width, height, dc1394->frame_rate); 159 ret = AVERROR(EINVAL); 160 goto out; 161 } 162 163 /* create a video stream */ 164 vst = avformat_new_stream(c, NULL); 165 if (!vst) { 166 ret = AVERROR(ENOMEM); 167 goto out; 168 } 169 avpriv_set_pts_info(vst, 64, 1, 1000); 170 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; 171 vst->codec->codec_id = CODEC_ID_RAWVIDEO; 172 vst->codec->time_base.den = framerate.num; 173 vst->codec->time_base.num = framerate.den; 174 vst->codec->width = fmt->width; 175 vst->codec->height = fmt->height; 176 vst->codec->pix_fmt = fmt->pix_fmt; 177 178 /* packet init */ 179 av_init_packet(&dc1394->packet); 180 dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); 181 dc1394->packet.stream_index = vst->index; 182 dc1394->packet.flags |= AV_PKT_FLAG_KEY; 183 184 dc1394->current_frame = 0; 185 186 vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); 187 *select_fps = fps; 188 *select_fmt = fmt; 189out: 190 return ret; 191} 192 193#if HAVE_LIBDC1394_1 194static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap) 195{ 196 dc1394_data* dc1394 = c->priv_data; 197 AVStream* vst; 198 nodeid_t* camera_nodes; 199 int res; 200 struct dc1394_frame_format *fmt = NULL; 201 struct dc1394_frame_rate *fps = NULL; 202 203 if (dc1394_read_common(c,ap,&fmt,&fps) != 0) 204 return -1; 205 206 /* Now let us prep the hardware. */ 207 dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ 208 if (!dc1394->handle) { 209 av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); 210 goto out; 211 } 212 camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); 213 if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { 214 av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); 215 goto out_handle; 216 } 217 res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], 218 0, 219 FORMAT_VGA_NONCOMPRESSED, 220 fmt->frame_size_id, 221 SPEED_400, 222 fps->frame_rate_id, 8, 1, 223 c->filename, 224 &dc1394->camera); 225 dc1394_free_camera_nodes(camera_nodes); 226 if (res != DC1394_SUCCESS) { 227 av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); 228 goto out_handle; 229 } 230 231 res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); 232 if (res != DC1394_SUCCESS) { 233 av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); 234 goto out_handle_dma; 235 } 236 237 return 0; 238 239out_handle_dma: 240 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); 241 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); 242out_handle: 243 dc1394_destroy_handle(dc1394->handle); 244out: 245 return -1; 246} 247 248static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) 249{ 250 struct dc1394_data *dc1394 = c->priv_data; 251 int res; 252 253 /* discard stale frame */ 254 if (dc1394->current_frame++) { 255 if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) 256 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); 257 } 258 259 res = dc1394_dma_single_capture(&dc1394->camera); 260 261 if (res == DC1394_SUCCESS) { 262 dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); 263 dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; 264 res = dc1394->packet.size; 265 } else { 266 av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); 267 dc1394->packet.data = NULL; 268 res = -1; 269 } 270 271 *pkt = dc1394->packet; 272 return res; 273} 274 275static int dc1394_v1_close(AVFormatContext * context) 276{ 277 struct dc1394_data *dc1394 = context->priv_data; 278 279 dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); 280 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); 281 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); 282 dc1394_destroy_handle(dc1394->handle); 283 284 return 0; 285} 286 287#elif HAVE_LIBDC1394_2 288static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap) 289{ 290 dc1394_data* dc1394 = c->priv_data; 291 dc1394camera_list_t *list; 292 int res, i; 293 struct dc1394_frame_format *fmt = NULL; 294 struct dc1394_frame_rate *fps = NULL; 295 296 if (dc1394_read_common(c,ap,&fmt,&fps) != 0) 297 return -1; 298 299 /* Now let us prep the hardware. */ 300 dc1394->d = dc1394_new(); 301 dc1394_camera_enumerate (dc1394->d, &list); 302 if ( !list || list->num == 0) { 303 av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); 304 goto out; 305 } 306 307 /* FIXME: To select a specific camera I need to search in list its guid */ 308 dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); 309 if (list->num > 1) { 310 av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); 311 } 312 313 /* Freeing list of cameras */ 314 dc1394_camera_free_list (list); 315 316 /* Select MAX Speed possible from the cam */ 317 if (dc1394->camera->bmode_capable>0) { 318 dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B); 319 i = DC1394_ISO_SPEED_800; 320 } else { 321 i = DC1394_ISO_SPEED_400; 322 } 323 324 for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) { 325 res=dc1394_video_set_iso_speed(dc1394->camera, i); 326 } 327 if (res != DC1394_SUCCESS) { 328 av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n"); 329 goto out_camera; 330 } 331 332 if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { 333 av_log(c, AV_LOG_ERROR, "Couldn't set video format\n"); 334 goto out_camera; 335 } 336 337 if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) { 338 av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate); 339 goto out_camera; 340 } 341 if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { 342 av_log(c, AV_LOG_ERROR, "Cannot setup camera \n"); 343 goto out_camera; 344 } 345 346 if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) { 347 av_log(c, AV_LOG_ERROR, "Cannot start capture\n"); 348 goto out_camera; 349 } 350 return 0; 351 352out_camera: 353 dc1394_capture_stop(dc1394->camera); 354 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); 355 dc1394_camera_free (dc1394->camera); 356out: 357 dc1394_free(dc1394->d); 358 return -1; 359} 360 361static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) 362{ 363 struct dc1394_data *dc1394 = c->priv_data; 364 int res; 365 366 /* discard stale frame */ 367 if (dc1394->current_frame++) { 368 if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS) 369 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); 370 } 371 372 res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame); 373 if (res == DC1394_SUCCESS) { 374 dc1394->packet.data = (uint8_t *) dc1394->frame->image; 375 dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate; 376 res = dc1394->frame->image_bytes; 377 } else { 378 av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); 379 dc1394->packet.data = NULL; 380 res = -1; 381 } 382 383 *pkt = dc1394->packet; 384 return res; 385} 386 387static int dc1394_v2_close(AVFormatContext * context) 388{ 389 struct dc1394_data *dc1394 = context->priv_data; 390 391 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); 392 dc1394_capture_stop(dc1394->camera); 393 dc1394_camera_free(dc1394->camera); 394 dc1394_free(dc1394->d); 395 396 return 0; 397} 398 399AVInputFormat ff_libdc1394_demuxer = { 400 .name = "libdc1394", 401 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"), 402 .priv_data_size = sizeof(struct dc1394_data), 403 .read_header = dc1394_v2_read_header, 404 .read_packet = dc1394_v2_read_packet, 405 .read_close = dc1394_v2_close, 406 .flags = AVFMT_NOFILE, 407 .priv_class = &libdc1394_class, 408}; 409 410#endif 411#if HAVE_LIBDC1394_1 412AVInputFormat ff_libdc1394_demuxer = { 413 .name = "libdc1394", 414 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), 415 .priv_data_size = sizeof(struct dc1394_data), 416 .read_header = dc1394_v1_read_header, 417 .read_packet = dc1394_v1_read_packet, 418 .read_close = dc1394_v1_close, 419 .flags = AVFMT_NOFILE, 420 .priv_class = &libdc1394_class, 421}; 422#endif 423