libdc1394.c 14 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417
  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. #include "config.h"
  23. #include "libavformat/avformat.h"
  24. #include "libavutil/log.h"
  25. #include "libavutil/opt.h"
  26. #include "libavutil/parseutils.h"
  27. #if HAVE_LIBDC1394_2
  28. #include <dc1394/dc1394.h>
  29. #elif HAVE_LIBDC1394_1
  30. #include <libraw1394/raw1394.h>
  31. #include <libdc1394/dc1394_control.h>
  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. #undef free
  45. typedef struct dc1394_data {
  46. AVClass *class;
  47. #if HAVE_LIBDC1394_1
  48. raw1394handle_t handle;
  49. dc1394_cameracapture camera;
  50. int channel;
  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. char *video_size; /**< String describing video size, set by a private option. */
  59. AVPacket packet;
  60. } dc1394_data;
  61. struct dc1394_frame_format {
  62. int width;
  63. int height;
  64. enum PixelFormat pix_fmt;
  65. int frame_size_id;
  66. } dc1394_frame_formats[] = {
  67. { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
  68. { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
  69. { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
  70. { 0, 0, 0, 0 } /* gotta be the last one */
  71. };
  72. struct dc1394_frame_rate {
  73. int frame_rate;
  74. int frame_rate_id;
  75. } dc1394_frame_rates[] = {
  76. { 1875, DC1394_FRAMERATE_1_875 },
  77. { 3750, DC1394_FRAMERATE_3_75 },
  78. { 7500, DC1394_FRAMERATE_7_5 },
  79. { 15000, DC1394_FRAMERATE_15 },
  80. { 30000, DC1394_FRAMERATE_30 },
  81. { 60000, DC1394_FRAMERATE_60 },
  82. {120000, DC1394_FRAMERATE_120 },
  83. {240000, DC1394_FRAMERATE_240 },
  84. { 0, 0 } /* gotta be the last one */
  85. };
  86. #define OFFSET(x) offsetof(dc1394_data, x)
  87. #define DEC AV_OPT_FLAG_DECODING_PARAM
  88. static const AVOption options[] = {
  89. #if HAVE_LIBDC1394_1
  90. { "channel", "", offsetof(dc1394_data, channel), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
  91. #endif
  92. { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
  93. { NULL },
  94. };
  95. static const AVClass libdc1394_class = {
  96. .class_name = "libdc1394 indev",
  97. .item_name = av_default_item_name,
  98. .option = options,
  99. .version = LIBAVUTIL_VERSION_INT,
  100. };
  101. static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
  102. struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
  103. {
  104. dc1394_data* dc1394 = c->priv_data;
  105. AVStream* vst;
  106. struct dc1394_frame_format *fmt;
  107. struct dc1394_frame_rate *fps;
  108. enum PixelFormat pix_fmt = ap->pix_fmt == PIX_FMT_NONE ? PIX_FMT_UYVY422 : ap->pix_fmt; /* defaults */
  109. int width, height;
  110. int frame_rate = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);
  111. int ret = 0;
  112. if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
  113. av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n");
  114. goto out;
  115. }
  116. #if FF_API_FORMAT_PARAMETERS
  117. if (ap->width > 0)
  118. width = ap->width;
  119. if (ap->height > 0)
  120. height = ap->height;
  121. #endif
  122. for (fmt = dc1394_frame_formats; fmt->width; fmt++)
  123. if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
  124. break;
  125. for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
  126. if (fps->frame_rate == frame_rate)
  127. break;
  128. if (!fps->frame_rate || !fmt->width) {
  129. 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),
  130. width, height, frame_rate);
  131. ret = AVERROR(EINVAL);
  132. goto out;
  133. }
  134. /* create a video stream */
  135. vst = av_new_stream(c, 0);
  136. if (!vst) {
  137. ret = AVERROR(ENOMEM);
  138. goto out;
  139. }
  140. av_set_pts_info(vst, 64, 1, 1000);
  141. vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
  142. vst->codec->codec_id = CODEC_ID_RAWVIDEO;
  143. vst->codec->time_base.den = fps->frame_rate;
  144. vst->codec->time_base.num = 1000;
  145. vst->codec->width = fmt->width;
  146. vst->codec->height = fmt->height;
  147. vst->codec->pix_fmt = fmt->pix_fmt;
  148. /* packet init */
  149. av_init_packet(&dc1394->packet);
  150. dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
  151. dc1394->packet.stream_index = vst->index;
  152. dc1394->packet.flags |= AV_PKT_FLAG_KEY;
  153. dc1394->current_frame = 0;
  154. dc1394->fps = fps->frame_rate;
  155. vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
  156. *select_fps = fps;
  157. *select_fmt = fmt;
  158. out:
  159. av_freep(&dc1394->video_size);
  160. return ret;
  161. }
  162. #if HAVE_LIBDC1394_1
  163. static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
  164. {
  165. dc1394_data* dc1394 = c->priv_data;
  166. AVStream* vst;
  167. nodeid_t* camera_nodes;
  168. int res;
  169. struct dc1394_frame_format *fmt = NULL;
  170. struct dc1394_frame_rate *fps = NULL;
  171. if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
  172. return -1;
  173. #if FF_API_FORMAT_PARAMETERS
  174. if (ap->channel)
  175. dc1394->channel = ap->channel;
  176. #endif
  177. /* Now let us prep the hardware. */
  178. dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
  179. if (!dc1394->handle) {
  180. av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
  181. goto out;
  182. }
  183. camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
  184. if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
  185. av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
  186. goto out_handle;
  187. }
  188. res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
  189. 0,
  190. FORMAT_VGA_NONCOMPRESSED,
  191. fmt->frame_size_id,
  192. SPEED_400,
  193. fps->frame_rate_id, 8, 1,
  194. c->filename,
  195. &dc1394->camera);
  196. dc1394_free_camera_nodes(camera_nodes);
  197. if (res != DC1394_SUCCESS) {
  198. av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
  199. goto out_handle;
  200. }
  201. res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
  202. if (res != DC1394_SUCCESS) {
  203. av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
  204. goto out_handle_dma;
  205. }
  206. return 0;
  207. out_handle_dma:
  208. dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
  209. dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
  210. out_handle:
  211. dc1394_destroy_handle(dc1394->handle);
  212. out:
  213. return -1;
  214. }
  215. static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
  216. {
  217. struct dc1394_data *dc1394 = c->priv_data;
  218. int res;
  219. /* discard stale frame */
  220. if (dc1394->current_frame++) {
  221. if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
  222. av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
  223. }
  224. res = dc1394_dma_single_capture(&dc1394->camera);
  225. if (res == DC1394_SUCCESS) {
  226. dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
  227. dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->fps;
  228. res = dc1394->packet.size;
  229. } else {
  230. av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
  231. dc1394->packet.data = NULL;
  232. res = -1;
  233. }
  234. *pkt = dc1394->packet;
  235. return res;
  236. }
  237. static int dc1394_v1_close(AVFormatContext * context)
  238. {
  239. struct dc1394_data *dc1394 = context->priv_data;
  240. dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
  241. dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
  242. dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
  243. dc1394_destroy_handle(dc1394->handle);
  244. return 0;
  245. }
  246. #elif HAVE_LIBDC1394_2
  247. static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
  248. {
  249. dc1394_data* dc1394 = c->priv_data;
  250. dc1394camera_list_t *list;
  251. int res, i;
  252. struct dc1394_frame_format *fmt = NULL;
  253. struct dc1394_frame_rate *fps = NULL;
  254. if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
  255. return -1;
  256. /* Now let us prep the hardware. */
  257. dc1394->d = dc1394_new();
  258. dc1394_camera_enumerate (dc1394->d, &list);
  259. if ( !list || list->num == 0) {
  260. av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
  261. goto out;
  262. }
  263. /* FIXME: To select a specific camera I need to search in list its guid */
  264. dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
  265. if (list->num > 1) {
  266. av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
  267. }
  268. /* Freeing list of cameras */
  269. dc1394_camera_free_list (list);
  270. /* Select MAX Speed possible from the cam */
  271. if (dc1394->camera->bmode_capable>0) {
  272. dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
  273. i = DC1394_ISO_SPEED_800;
  274. } else {
  275. i = DC1394_ISO_SPEED_400;
  276. }
  277. for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
  278. res=dc1394_video_set_iso_speed(dc1394->camera, i);
  279. }
  280. if (res != DC1394_SUCCESS) {
  281. av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
  282. goto out_camera;
  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. if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
  289. av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
  290. goto out_camera;
  291. }
  292. if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
  293. av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
  294. goto out_camera;
  295. }
  296. if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
  297. av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
  298. goto out_camera;
  299. }
  300. return 0;
  301. out_camera:
  302. dc1394_capture_stop(dc1394->camera);
  303. dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
  304. dc1394_camera_free (dc1394->camera);
  305. out:
  306. dc1394_free(dc1394->d);
  307. return -1;
  308. }
  309. static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
  310. {
  311. struct dc1394_data *dc1394 = c->priv_data;
  312. int res;
  313. /* discard stale frame */
  314. if (dc1394->current_frame++) {
  315. if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
  316. av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
  317. }
  318. res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
  319. if (res == DC1394_SUCCESS) {
  320. dc1394->packet.data = (uint8_t *)(dc1394->frame->image);
  321. dc1394->packet.pts = (dc1394->current_frame * 1000000) / (dc1394->fps);
  322. res = dc1394->frame->image_bytes;
  323. } else {
  324. av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
  325. dc1394->packet.data = NULL;
  326. res = -1;
  327. }
  328. *pkt = dc1394->packet;
  329. return res;
  330. }
  331. static int dc1394_v2_close(AVFormatContext * context)
  332. {
  333. struct dc1394_data *dc1394 = context->priv_data;
  334. dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
  335. dc1394_capture_stop(dc1394->camera);
  336. dc1394_camera_free(dc1394->camera);
  337. dc1394_free(dc1394->d);
  338. return 0;
  339. }
  340. AVInputFormat ff_libdc1394_demuxer = {
  341. .name = "libdc1394",
  342. .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
  343. .priv_data_size = sizeof(struct dc1394_data),
  344. .read_header = dc1394_v2_read_header,
  345. .read_packet = dc1394_v2_read_packet,
  346. .read_close = dc1394_v2_close,
  347. .flags = AVFMT_NOFILE,
  348. .priv_class = &libdc1394_class,
  349. };
  350. #endif
  351. #if HAVE_LIBDC1394_1
  352. AVInputFormat ff_libdc1394_demuxer = {
  353. .name = "libdc1394",
  354. .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
  355. .priv_data_size = sizeof(struct dc1394_data),
  356. .read_header = dc1394_v1_read_header,
  357. .read_packet = dc1394_v1_read_packet,
  358. .read_close = dc1394_v1_close,
  359. .flags = AVFMT_NOFILE,
  360. .priv_class = &libdc1394_class,
  361. };
  362. #endif