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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
25#if HAVE_LIBDC1394_2
26#include <dc1394/dc1394.h>
27#elif HAVE_LIBDC1394_1
28#include <libraw1394/raw1394.h>
29#include <libdc1394/dc1394_control.h>
30
31#define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
32#define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
33#define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
34#define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
35#define DC1394_FRAMERATE_3_75 FRAMERATE_3_75
36#define DC1394_FRAMERATE_7_5 FRAMERATE_7_5
37#define DC1394_FRAMERATE_15 FRAMERATE_15
38#define DC1394_FRAMERATE_30 FRAMERATE_30
39#define DC1394_FRAMERATE_60 FRAMERATE_60
40#define DC1394_FRAMERATE_120 FRAMERATE_120
41#define DC1394_FRAMERATE_240 FRAMERATE_240
42#endif
43
44#include "libavutil/imgutils.h"
45#include "libavutil/internal.h"
46#include "libavutil/log.h"
47#include "libavutil/mathematics.h"
48#include "libavutil/opt.h"
49#include "libavutil/parseutils.h"
50#include "libavutil/pixdesc.h"
51
52#include "libavformat/avformat.h"
53#include "libavformat/internal.h"
54
55typedef struct dc1394_data {
56 AVClass *class;
57#if HAVE_LIBDC1394_1
58 raw1394handle_t handle;
59 dc1394_cameracapture camera;
60 int channel;
61#elif HAVE_LIBDC1394_2
62 dc1394_t *d;
63 dc1394camera_t *camera;
64 dc1394video_frame_t *frame;
65#endif
66 int current_frame;
67 int frame_rate; /**< frames per 1000 seconds (fps * 1000) */
68 char *video_size; /**< String describing video size, set by a private option. */
69 char *pixel_format; /**< Set by a private option. */
70 char *framerate; /**< Set by a private option. */
71
72 int size;
73 int stream_index;
74} dc1394_data;
75
76static const struct dc1394_frame_format {
77 int width;
78 int height;
79 enum AVPixelFormat pix_fmt;
80 int frame_size_id;
81} dc1394_frame_formats[] = {
82 { 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
83 { 640, 480, AV_PIX_FMT_GRAY8, DC1394_VIDEO_MODE_640x480_MONO8 },
84 { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
85 { 640, 480, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
86 { 0, 0, 0, 0 } /* gotta be the last one */
87};
88
89static const struct dc1394_frame_rate {
90 int frame_rate;
91 int frame_rate_id;
92} dc1394_frame_rates[] = {
93 { 1875, DC1394_FRAMERATE_1_875 },
94 { 3750, DC1394_FRAMERATE_3_75 },
95 { 7500, DC1394_FRAMERATE_7_5 },
96 { 15000, DC1394_FRAMERATE_15 },
97 { 30000, DC1394_FRAMERATE_30 },
98 { 60000, DC1394_FRAMERATE_60 },
99 {120000, DC1394_FRAMERATE_120 },
100 {240000, DC1394_FRAMERATE_240 },
101 { 0, 0 } /* gotta be the last one */
102};
103
104#define OFFSET(x) offsetof(dc1394_data, x)
105#define DEC AV_OPT_FLAG_DECODING_PARAM
106static const AVOption options[] = {
107#if HAVE_LIBDC1394_1
108 { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
109#endif
110 { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
111 { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
112 { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
113 { NULL },
114};
115
116static const AVClass libdc1394_class = {
117 .class_name = "libdc1394 indev",
118 .item_name = av_default_item_name,
119 .option = options,
120 .version = LIBAVUTIL_VERSION_INT,
121 .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
122};
123
124
125static inline int dc1394_read_common(AVFormatContext *c,
126 const struct dc1394_frame_format **select_fmt, const struct dc1394_frame_rate **select_fps)
127{
128 dc1394_data* dc1394 = c->priv_data;
129 AVStream* vst;
130 const struct dc1394_frame_format *fmt;
131 const struct dc1394_frame_rate *fps;
132 enum AVPixelFormat pix_fmt;
133 int width, height;
134 AVRational framerate;
135 int ret = 0;
136
137 if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
138 av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
139 ret = AVERROR(EINVAL);
140 goto out;
141 }
142
143 if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
144 av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
145 goto out;
146 }
147 if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
148 av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
149 goto out;
150 }
151 dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
152
153 for (fmt = dc1394_frame_formats; fmt->width; fmt++)
154 if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
155 break;
156
157 for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
158 if (fps->frame_rate == dc1394->frame_rate)
159 break;
160
161 if (!fps->frame_rate || !fmt->width) {
162 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),
163 width, height, dc1394->frame_rate);
164 ret = AVERROR(EINVAL);
165 goto out;
166 }
167
168 /* create a video stream */
169 vst = avformat_new_stream(c, NULL);
170 if (!vst) {
171 ret = AVERROR(ENOMEM);
172 goto out;
173 }
174 avpriv_set_pts_info(vst, 64, 1, 1000);
175 vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
176 vst->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
177 vst->codecpar->width = fmt->width;
178 vst->codecpar->height = fmt->height;
179 vst->codecpar->format = fmt->pix_fmt;
180 vst->avg_frame_rate = framerate;
181
182 dc1394->current_frame = 0;
183 dc1394->stream_index = vst->index;
184 dc1394->size = av_image_get_buffer_size(fmt->pix_fmt,
185 fmt->width, fmt->height, 1);
186
187 vst->codecpar->bit_rate = av_rescale(dc1394->size * 8,
188 fps->frame_rate, 1000);
189 *select_fps = fps;
190 *select_fmt = fmt;
191out:
192 return ret;
193}
194
195#if HAVE_LIBDC1394_1
196static int dc1394_v1_read_header(AVFormatContext *c)
197{
198 dc1394_data* dc1394 = c->priv_data;
199 AVStream* vst;
200 nodeid_t* camera_nodes;
201 int res;
202 struct dc1394_frame_format *fmt = NULL;
203 struct dc1394_frame_rate *fps = NULL;
204
205 if (dc1394_read_common(c, &fmt, &fps) != 0)
206 return -1;
207
208 /* Now let us prep the hardware. */
209 dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
210 if (!dc1394->handle) {
211 av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
212 goto out;
213 }
214 camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
215 if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
216 av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
217 goto out_handle;
218 }
219 res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
220 0,
221 FORMAT_VGA_NONCOMPRESSED,
222 fmt->frame_size_id,
223 SPEED_400,
224 fps->frame_rate_id, 8, 1,
225 c->filename,
226 &dc1394->camera);
227 dc1394_free_camera_nodes(camera_nodes);
228 if (res != DC1394_SUCCESS) {
229 av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
230 goto out_handle;
231 }
232
233 res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
234 if (res != DC1394_SUCCESS) {
235 av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
236 goto out_handle_dma;
237 }
238
239 return 0;
240
241out_handle_dma:
242 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
243 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
244out_handle:
245 dc1394_destroy_handle(dc1394->handle);
246out:
247 return -1;
248}
249
250static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
251{
252 struct dc1394_data *dc1394 = c->priv_data;
253 int res;
254
255 /* discard stale frame */
256 if (dc1394->current_frame++) {
257 if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
258 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
259 }
260
261 res = dc1394_dma_single_capture(&dc1394->camera);
262
263 if (res == DC1394_SUCCESS) {
264 pkt->data = (uint8_t *)dc1394->camera.capture_buffer;
265 pkt->size = dc1394->size;
266 pkt->pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
267 pkt->flags |= AV_PKT_FLAG_KEY;
268 pkt->stream_index = dc1394->stream_index;
269 } else {
270 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
271 return AVERROR_INVALIDDATA;
272 }
273
274 return pkt->size;
275}
276
277static int dc1394_v1_close(AVFormatContext * context)
278{
279 struct dc1394_data *dc1394 = context->priv_data;
280
281 dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
282 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
283 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
284 dc1394_destroy_handle(dc1394->handle);
285
286 return 0;
287}
288
289#elif HAVE_LIBDC1394_2
290static int dc1394_v2_read_header(AVFormatContext *c)
291{
292 dc1394_data* dc1394 = c->priv_data;
293 dc1394camera_list_t *list;
294 int res, i;
295 const struct dc1394_frame_format *fmt = NULL;
296 const struct dc1394_frame_rate *fps = NULL;
297
298 if (dc1394_read_common(c, &fmt, &fps) != 0)
299 return -1;
300
301 /* Now let us prep the hardware. */
302 dc1394->d = dc1394_new();
303 if (dc1394_camera_enumerate(dc1394->d, &list) != DC1394_SUCCESS || !list) {
304 av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera.\n");
305 goto out;
306 }
307
308 if (list->num == 0) {
309 av_log(c, AV_LOG_ERROR, "No cameras found.\n");
310 dc1394_camera_free_list(list);
311 goto out;
312 }
313
314 /* FIXME: To select a specific camera I need to search in list its guid */
315 dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
316 if (list->num > 1) {
317 av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
318 }
319
320 /* Freeing list of cameras */
321 dc1394_camera_free_list (list);
322
323 /* Select MAX Speed possible from the cam */
324 if (dc1394->camera->bmode_capable>0) {
325 dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
326 i = DC1394_ISO_SPEED_800;
327 } else {
328 i = DC1394_ISO_SPEED_400;
329 }
330
331 for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
332 res=dc1394_video_set_iso_speed(dc1394->camera, i);
333 }
334 if (res != DC1394_SUCCESS) {
335 av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
336 goto out_camera;
337 }
338
339 if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
340 av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
341 goto out_camera;
342 }
343
344 if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
345 av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
346 goto out_camera;
347 }
348 if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
349 av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
350 goto out_camera;
351 }
352
353 if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
354 av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
355 goto out_camera;
356 }
357 return 0;
358
359out_camera:
360 dc1394_capture_stop(dc1394->camera);
361 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
362 dc1394_camera_free (dc1394->camera);
363out:
364 dc1394_free(dc1394->d);
365 return -1;
366}
367
368static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
369{
370 struct dc1394_data *dc1394 = c->priv_data;
371 int res;
372
373 /* discard stale frame */
374 if (dc1394->current_frame++) {
375 if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
376 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
377 }
378
379 res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
380 if (res == DC1394_SUCCESS) {
381 pkt->data = (uint8_t *)dc1394->frame->image;
382 pkt->size = dc1394->frame->image_bytes;
383 pkt->pts = dc1394->current_frame * 1000000 / dc1394->frame_rate;
384 pkt->flags |= AV_PKT_FLAG_KEY;
385 pkt->stream_index = dc1394->stream_index;
386 } else {
387 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
388 return AVERROR_INVALIDDATA;
389 }
390
391 return pkt->size;
392}
393
394static int dc1394_v2_close(AVFormatContext * context)
395{
396 struct dc1394_data *dc1394 = context->priv_data;
397
398 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
399 dc1394_capture_stop(dc1394->camera);
400 dc1394_camera_free(dc1394->camera);
401 dc1394_free(dc1394->d);
402
403 return 0;
404}
405
406AVInputFormat ff_libdc1394_demuxer = {
407 .name = "libdc1394",
408 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
409 .priv_data_size = sizeof(struct dc1394_data),
410 .read_header = dc1394_v2_read_header,
411 .read_packet = dc1394_v2_read_packet,
412 .read_close = dc1394_v2_close,
413 .flags = AVFMT_NOFILE,
414 .priv_class = &libdc1394_class,
415};
416
417#endif
418#if HAVE_LIBDC1394_1
419AVInputFormat ff_libdc1394_demuxer = {
420 .name = "libdc1394",
421 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
422 .priv_data_size = sizeof(struct dc1394_data),
423 .read_header = dc1394_v1_read_header,
424 .read_packet = dc1394_v1_read_packet,
425 .read_close = dc1394_v1_close,
426 .flags = AVFMT_NOFILE,
427 .priv_class = &libdc1394_class,
428};
429#endif
430
generated by cgit at 2024-05-17 02:00:07 (GMT)