| 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 | #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 | typedef struct dc1394_data { |
| 52 | AVClass *class; |
| 53 | #if HAVE_LIBDC1394_1 |
| 54 | raw1394handle_t handle; |
| 55 | dc1394_cameracapture camera; |
| 56 | int channel; |
| 57 | #elif HAVE_LIBDC1394_2 |
| 58 | dc1394_t *d; |
| 59 | dc1394camera_t *camera; |
| 60 | dc1394video_frame_t *frame; |
| 61 | #endif |
| 62 | int current_frame; |
| 63 | int frame_rate; /**< frames per 1000 seconds (fps * 1000) */ |
| 64 | char *video_size; /**< String describing video size, set by a private option. */ |
| 65 | char *pixel_format; /**< Set by a private option. */ |
| 66 | char *framerate; /**< Set by a private option. */ |
| 67 | |
| 68 | AVPacket packet; |
| 69 | } dc1394_data; |
| 70 | |
| 71 | struct dc1394_frame_format { |
| 72 | int width; |
| 73 | int height; |
| 74 | enum AVPixelFormat pix_fmt; |
| 75 | int frame_size_id; |
| 76 | } dc1394_frame_formats[] = { |
| 77 | { 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, |
| 78 | { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, |
| 79 | { 640, 480, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, |
| 80 | { 0, 0, 0, 0 } /* gotta be the last one */ |
| 81 | }; |
| 82 | |
| 83 | struct dc1394_frame_rate { |
| 84 | int frame_rate; |
| 85 | int frame_rate_id; |
| 86 | } dc1394_frame_rates[] = { |
| 87 | { 1875, DC1394_FRAMERATE_1_875 }, |
| 88 | { 3750, DC1394_FRAMERATE_3_75 }, |
| 89 | { 7500, DC1394_FRAMERATE_7_5 }, |
| 90 | { 15000, DC1394_FRAMERATE_15 }, |
| 91 | { 30000, DC1394_FRAMERATE_30 }, |
| 92 | { 60000, DC1394_FRAMERATE_60 }, |
| 93 | {120000, DC1394_FRAMERATE_120 }, |
| 94 | {240000, DC1394_FRAMERATE_240 }, |
| 95 | { 0, 0 } /* gotta be the last one */ |
| 96 | }; |
| 97 | |
| 98 | #define OFFSET(x) offsetof(dc1394_data, x) |
| 99 | #define DEC AV_OPT_FLAG_DECODING_PARAM |
| 100 | static const AVOption options[] = { |
| 101 | #if HAVE_LIBDC1394_1 |
| 102 | { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, |
| 103 | #endif |
| 104 | { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC }, |
| 105 | { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC }, |
| 106 | { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC }, |
| 107 | { NULL }, |
| 108 | }; |
| 109 | |
| 110 | static const AVClass libdc1394_class = { |
| 111 | .class_name = "libdc1394 indev", |
| 112 | .item_name = av_default_item_name, |
| 113 | .option = options, |
| 114 | .version = LIBAVUTIL_VERSION_INT, |
| 115 | .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT, |
| 116 | }; |
| 117 | |
| 118 | |
| 119 | static inline int dc1394_read_common(AVFormatContext *c, |
| 120 | struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) |
| 121 | { |
| 122 | dc1394_data* dc1394 = c->priv_data; |
| 123 | AVStream* vst; |
| 124 | struct dc1394_frame_format *fmt; |
| 125 | struct dc1394_frame_rate *fps; |
| 126 | enum AVPixelFormat pix_fmt; |
| 127 | int width, height; |
| 128 | AVRational framerate; |
| 129 | int ret = 0; |
| 130 | |
| 131 | if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) { |
| 132 | av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); |
| 133 | ret = AVERROR(EINVAL); |
| 134 | goto out; |
| 135 | } |
| 136 | |
| 137 | if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) { |
| 138 | av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size); |
| 139 | goto out; |
| 140 | } |
| 141 | if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) { |
| 142 | av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate); |
| 143 | goto out; |
| 144 | } |
| 145 | dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den); |
| 146 | |
| 147 | for (fmt = dc1394_frame_formats; fmt->width; fmt++) |
| 148 | if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height) |
| 149 | break; |
| 150 | |
| 151 | for (fps = dc1394_frame_rates; fps->frame_rate; fps++) |
| 152 | if (fps->frame_rate == dc1394->frame_rate) |
| 153 | break; |
| 154 | |
| 155 | if (!fps->frame_rate || !fmt->width) { |
| 156 | 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), |
| 157 | width, height, dc1394->frame_rate); |
| 158 | ret = AVERROR(EINVAL); |
| 159 | goto out; |
| 160 | } |
| 161 | |
| 162 | /* create a video stream */ |
| 163 | vst = avformat_new_stream(c, NULL); |
| 164 | if (!vst) { |
| 165 | ret = AVERROR(ENOMEM); |
| 166 | goto out; |
| 167 | } |
| 168 | avpriv_set_pts_info(vst, 64, 1, 1000); |
| 169 | vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
| 170 | vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO; |
| 171 | vst->codec->time_base.den = framerate.num; |
| 172 | vst->codec->time_base.num = framerate.den; |
| 173 | vst->codec->width = fmt->width; |
| 174 | vst->codec->height = fmt->height; |
| 175 | vst->codec->pix_fmt = fmt->pix_fmt; |
| 176 | |
| 177 | /* packet init */ |
| 178 | av_init_packet(&dc1394->packet); |
| 179 | dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); |
| 180 | dc1394->packet.stream_index = vst->index; |
| 181 | dc1394->packet.flags |= AV_PKT_FLAG_KEY; |
| 182 | |
| 183 | dc1394->current_frame = 0; |
| 184 | |
| 185 | vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); |
| 186 | *select_fps = fps; |
| 187 | *select_fmt = fmt; |
| 188 | out: |
| 189 | return ret; |
| 190 | } |
| 191 | |
| 192 | #if HAVE_LIBDC1394_1 |
| 193 | static int dc1394_v1_read_header(AVFormatContext *c) |
| 194 | { |
| 195 | dc1394_data* dc1394 = c->priv_data; |
| 196 | AVStream* vst; |
| 197 | nodeid_t* camera_nodes; |
| 198 | int res; |
| 199 | struct dc1394_frame_format *fmt = NULL; |
| 200 | struct dc1394_frame_rate *fps = NULL; |
| 201 | |
| 202 | if (dc1394_read_common(c, &fmt, &fps) != 0) |
| 203 | return -1; |
| 204 | |
| 205 | /* Now let us prep the hardware. */ |
| 206 | dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ |
| 207 | if (!dc1394->handle) { |
| 208 | av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); |
| 209 | goto out; |
| 210 | } |
| 211 | camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); |
| 212 | if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { |
| 213 | av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); |
| 214 | goto out_handle; |
| 215 | } |
| 216 | res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], |
| 217 | 0, |
| 218 | FORMAT_VGA_NONCOMPRESSED, |
| 219 | fmt->frame_size_id, |
| 220 | SPEED_400, |
| 221 | fps->frame_rate_id, 8, 1, |
| 222 | c->filename, |
| 223 | &dc1394->camera); |
| 224 | dc1394_free_camera_nodes(camera_nodes); |
| 225 | if (res != DC1394_SUCCESS) { |
| 226 | av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); |
| 227 | goto out_handle; |
| 228 | } |
| 229 | |
| 230 | res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); |
| 231 | if (res != DC1394_SUCCESS) { |
| 232 | av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); |
| 233 | goto out_handle_dma; |
| 234 | } |
| 235 | |
| 236 | return 0; |
| 237 | |
| 238 | out_handle_dma: |
| 239 | dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
| 240 | dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
| 241 | out_handle: |
| 242 | dc1394_destroy_handle(dc1394->handle); |
| 243 | out: |
| 244 | return -1; |
| 245 | } |
| 246 | |
| 247 | static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) |
| 248 | { |
| 249 | struct dc1394_data *dc1394 = c->priv_data; |
| 250 | int res; |
| 251 | |
| 252 | /* discard stale frame */ |
| 253 | if (dc1394->current_frame++) { |
| 254 | if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) |
| 255 | av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
| 256 | } |
| 257 | |
| 258 | res = dc1394_dma_single_capture(&dc1394->camera); |
| 259 | |
| 260 | if (res == DC1394_SUCCESS) { |
| 261 | dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); |
| 262 | dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; |
| 263 | res = dc1394->packet.size; |
| 264 | } else { |
| 265 | av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
| 266 | dc1394->packet.data = NULL; |
| 267 | res = -1; |
| 268 | } |
| 269 | |
| 270 | *pkt = dc1394->packet; |
| 271 | return res; |
| 272 | } |
| 273 | |
| 274 | static int dc1394_v1_close(AVFormatContext * context) |
| 275 | { |
| 276 | struct dc1394_data *dc1394 = context->priv_data; |
| 277 | |
| 278 | dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); |
| 279 | dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
| 280 | dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
| 281 | dc1394_destroy_handle(dc1394->handle); |
| 282 | |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | #elif HAVE_LIBDC1394_2 |
| 287 | static int dc1394_v2_read_header(AVFormatContext *c) |
| 288 | { |
| 289 | dc1394_data* dc1394 = c->priv_data; |
| 290 | dc1394camera_list_t *list; |
| 291 | int res, i; |
| 292 | struct dc1394_frame_format *fmt = NULL; |
| 293 | struct dc1394_frame_rate *fps = NULL; |
| 294 | |
| 295 | if (dc1394_read_common(c, &fmt, &fps) != 0) |
| 296 | return -1; |
| 297 | |
| 298 | /* Now let us prep the hardware. */ |
| 299 | dc1394->d = dc1394_new(); |
| 300 | dc1394_camera_enumerate (dc1394->d, &list); |
| 301 | if ( !list || list->num == 0) { |
| 302 | av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); |
| 303 | goto out; |
| 304 | } |
| 305 | |
| 306 | /* FIXME: To select a specific camera I need to search in list its guid */ |
| 307 | dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); |
| 308 | if (list->num > 1) { |
| 309 | av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); |
| 310 | } |
| 311 | |
| 312 | /* Freeing list of cameras */ |
| 313 | dc1394_camera_free_list (list); |
| 314 | |
| 315 | /* Select MAX Speed possible from the cam */ |
| 316 | if (dc1394->camera->bmode_capable>0) { |
| 317 | dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B); |
| 318 | i = DC1394_ISO_SPEED_800; |
| 319 | } else { |
| 320 | i = DC1394_ISO_SPEED_400; |
| 321 | } |
| 322 | |
| 323 | for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) { |
| 324 | res=dc1394_video_set_iso_speed(dc1394->camera, i); |
| 325 | } |
| 326 | if (res != DC1394_SUCCESS) { |
| 327 | av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n"); |
| 328 | goto out_camera; |
| 329 | } |
| 330 | |
| 331 | if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { |
| 332 | av_log(c, AV_LOG_ERROR, "Couldn't set video format\n"); |
| 333 | goto out_camera; |
| 334 | } |
| 335 | |
| 336 | if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) { |
| 337 | av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate); |
| 338 | goto out_camera; |
| 339 | } |
| 340 | if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { |
| 341 | av_log(c, AV_LOG_ERROR, "Cannot setup camera \n"); |
| 342 | goto out_camera; |
| 343 | } |
| 344 | |
| 345 | if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) { |
| 346 | av_log(c, AV_LOG_ERROR, "Cannot start capture\n"); |
| 347 | goto out_camera; |
| 348 | } |
| 349 | return 0; |
| 350 | |
| 351 | out_camera: |
| 352 | dc1394_capture_stop(dc1394->camera); |
| 353 | dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); |
| 354 | dc1394_camera_free (dc1394->camera); |
| 355 | out: |
| 356 | dc1394_free(dc1394->d); |
| 357 | return -1; |
| 358 | } |
| 359 | |
| 360 | static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) |
| 361 | { |
| 362 | struct dc1394_data *dc1394 = c->priv_data; |
| 363 | int res; |
| 364 | |
| 365 | /* discard stale frame */ |
| 366 | if (dc1394->current_frame++) { |
| 367 | if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS) |
| 368 | av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
| 369 | } |
| 370 | |
| 371 | res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame); |
| 372 | if (res == DC1394_SUCCESS) { |
| 373 | dc1394->packet.data = (uint8_t *) dc1394->frame->image; |
| 374 | dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate; |
| 375 | res = dc1394->frame->image_bytes; |
| 376 | } else { |
| 377 | av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
| 378 | dc1394->packet.data = NULL; |
| 379 | res = -1; |
| 380 | } |
| 381 | |
| 382 | *pkt = dc1394->packet; |
| 383 | return res; |
| 384 | } |
| 385 | |
| 386 | static int dc1394_v2_close(AVFormatContext * context) |
| 387 | { |
| 388 | struct dc1394_data *dc1394 = context->priv_data; |
| 389 | |
| 390 | dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); |
| 391 | dc1394_capture_stop(dc1394->camera); |
| 392 | dc1394_camera_free(dc1394->camera); |
| 393 | dc1394_free(dc1394->d); |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | AVInputFormat ff_libdc1394_demuxer = { |
| 399 | .name = "libdc1394", |
| 400 | .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"), |
| 401 | .priv_data_size = sizeof(struct dc1394_data), |
| 402 | .read_header = dc1394_v2_read_header, |
| 403 | .read_packet = dc1394_v2_read_packet, |
| 404 | .read_close = dc1394_v2_close, |
| 405 | .flags = AVFMT_NOFILE, |
| 406 | .priv_class = &libdc1394_class, |
| 407 | }; |
| 408 | |
| 409 | #endif |
| 410 | #if HAVE_LIBDC1394_1 |
| 411 | AVInputFormat ff_libdc1394_demuxer = { |
| 412 | .name = "libdc1394", |
| 413 | .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), |
| 414 | .priv_data_size = sizeof(struct dc1394_data), |
| 415 | .read_header = dc1394_v1_read_header, |
| 416 | .read_packet = dc1394_v1_read_packet, |
| 417 | .read_close = dc1394_v1_close, |
| 418 | .flags = AVFMT_NOFILE, |
| 419 | .priv_class = &libdc1394_class, |
| 420 | }; |
| 421 | #endif |