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6147 serge 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 
27
#elif HAVE_LIBDC1394_1
28
#include 
29
#include 
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/internal.h"
45
#include "libavutil/log.h"
46
#include "libavutil/mathematics.h"
47
#include "libavutil/opt.h"
48
#include "libavutil/parseutils.h"
49
#include "libavutil/pixdesc.h"
50
 
51
#include "libavformat/avformat.h"
52
#include "libavformat/internal.h"
53
 
54
typedef struct dc1394_data {
55
    AVClass *class;
56
#if HAVE_LIBDC1394_1
57
    raw1394handle_t handle;
58
    dc1394_cameracapture camera;
59
    int channel;
60
#elif HAVE_LIBDC1394_2
61
    dc1394_t *d;
62
    dc1394camera_t *camera;
63
    dc1394video_frame_t *frame;
64
#endif
65
    int current_frame;
66
    int  frame_rate;        /**< frames per 1000 seconds (fps * 1000) */
67
    char *video_size;       /**< String describing video size, set by a private option. */
68
    char *pixel_format;     /**< Set by a private option. */
69
    char *framerate;        /**< Set by a private option. */
70
 
71
    AVPacket packet;
72
} dc1394_data;
73
 
74
static const struct dc1394_frame_format {
75
    int width;
76
    int height;
77
    enum AVPixelFormat pix_fmt;
78
    int frame_size_id;
79
} dc1394_frame_formats[] = {
80
    { 320, 240, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_320x240_YUV422 },
81
    { 640, 480, AV_PIX_FMT_GRAY8,     DC1394_VIDEO_MODE_640x480_MONO8 },
82
    { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
83
    { 640, 480, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_640x480_YUV422 },
84
    { 0, 0, 0, 0 } /* gotta be the last one */
85
};
86
 
87
static const struct dc1394_frame_rate {
88
    int frame_rate;
89
    int frame_rate_id;
90
} dc1394_frame_rates[] = {
91
    {  1875, DC1394_FRAMERATE_1_875 },
92
    {  3750, DC1394_FRAMERATE_3_75  },
93
    {  7500, DC1394_FRAMERATE_7_5   },
94
    { 15000, DC1394_FRAMERATE_15    },
95
    { 30000, DC1394_FRAMERATE_30    },
96
    { 60000, DC1394_FRAMERATE_60    },
97
    {120000, DC1394_FRAMERATE_120   },
98
    {240000, DC1394_FRAMERATE_240    },
99
    { 0, 0 } /* gotta be the last one */
100
};
101
 
102
#define OFFSET(x) offsetof(dc1394_data, x)
103
#define DEC AV_OPT_FLAG_DECODING_PARAM
104
static const AVOption options[] = {
105
#if HAVE_LIBDC1394_1
106
    { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
107
#endif
108
    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
109
    { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
110
    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
111
    { NULL },
112
};
113
 
114
static const AVClass libdc1394_class = {
115
    .class_name = "libdc1394 indev",
116
    .item_name  = av_default_item_name,
117
    .option     = options,
118
    .version    = LIBAVUTIL_VERSION_INT,
119
    .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
120
};
121
 
122
 
123
static inline int dc1394_read_common(AVFormatContext *c,
124
                                     struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
125
{
126
    dc1394_data* dc1394 = c->priv_data;
127
    AVStream* vst;
128
    struct dc1394_frame_format *fmt;
129
    struct dc1394_frame_rate *fps;
130
    enum AVPixelFormat pix_fmt;
131
    int width, height;
132
    AVRational framerate;
133
    int ret = 0;
134
 
135
    if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
136
        av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
137
        ret = AVERROR(EINVAL);
138
        goto out;
139
    }
140
 
141
    if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
142
        av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
143
        goto out;
144
    }
145
    if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
146
        av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
147
        goto out;
148
    }
149
    dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
150
 
151
    for (fmt = dc1394_frame_formats; fmt->width; fmt++)
152
         if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
153
             break;
154
 
155
    for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
156
         if (fps->frame_rate == dc1394->frame_rate)
157
             break;
158
 
159
    if (!fps->frame_rate || !fmt->width) {
160
        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),
161
                                                                                                width, height, dc1394->frame_rate);
162
        ret = AVERROR(EINVAL);
163
        goto out;
164
    }
165
 
166
    /* create a video stream */
167
    vst = avformat_new_stream(c, NULL);
168
    if (!vst) {
169
        ret = AVERROR(ENOMEM);
170
        goto out;
171
    }
172
    avpriv_set_pts_info(vst, 64, 1, 1000);
173
    vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
174
    vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
175
    vst->codec->time_base.den = framerate.num;
176
    vst->codec->time_base.num = framerate.den;
177
    vst->codec->width = fmt->width;
178
    vst->codec->height = fmt->height;
179
    vst->codec->pix_fmt = fmt->pix_fmt;
180
 
181
    /* packet init */
182
    av_init_packet(&dc1394->packet);
183
    dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
184
    dc1394->packet.stream_index = vst->index;
185
    dc1394->packet.flags |= AV_PKT_FLAG_KEY;
186
 
187
    dc1394->current_frame = 0;
188
 
189
    vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
190
    *select_fps = fps;
191
    *select_fmt = fmt;
192
out:
193
    return ret;
194
}
195
 
196
#if HAVE_LIBDC1394_1
197
static int dc1394_v1_read_header(AVFormatContext *c)
198
{
199
    dc1394_data* dc1394 = c->priv_data;
200
    AVStream* vst;
201
    nodeid_t* camera_nodes;
202
    int res;
203
    struct dc1394_frame_format *fmt = NULL;
204
    struct dc1394_frame_rate *fps = NULL;
205
 
206
    if (dc1394_read_common(c, &fmt, &fps) != 0)
207
        return -1;
208
 
209
    /* Now let us prep the hardware. */
210
    dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
211
    if (!dc1394->handle) {
212
        av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
213
        goto out;
214
    }
215
    camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
216
    if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
217
        av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
218
        goto out_handle;
219
    }
220
    res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
221
                                   0,
222
                                   FORMAT_VGA_NONCOMPRESSED,
223
                                   fmt->frame_size_id,
224
                                   SPEED_400,
225
                                   fps->frame_rate_id, 8, 1,
226
                                   c->filename,
227
                                   &dc1394->camera);
228
    dc1394_free_camera_nodes(camera_nodes);
229
    if (res != DC1394_SUCCESS) {
230
        av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
231
        goto out_handle;
232
    }
233
 
234
    res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
235
    if (res != DC1394_SUCCESS) {
236
        av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
237
        goto out_handle_dma;
238
    }
239
 
240
    return 0;
241
 
242
out_handle_dma:
243
    dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
244
    dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
245
out_handle:
246
    dc1394_destroy_handle(dc1394->handle);
247
out:
248
    return -1;
249
}
250
 
251
static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
252
{
253
    struct dc1394_data *dc1394 = c->priv_data;
254
    int res;
255
 
256
    /* discard stale frame */
257
    if (dc1394->current_frame++) {
258
        if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
259
            av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
260
    }
261
 
262
    res = dc1394_dma_single_capture(&dc1394->camera);
263
 
264
    if (res == DC1394_SUCCESS) {
265
        dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
266
        dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
267
        res = dc1394->packet.size;
268
    } else {
269
        av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
270
        dc1394->packet.data = NULL;
271
        res = -1;
272
    }
273
 
274
    *pkt = dc1394->packet;
275
    return res;
276
}
277
 
278
static int dc1394_v1_close(AVFormatContext * context)
279
{
280
    struct dc1394_data *dc1394 = context->priv_data;
281
 
282
    dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
283
    dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
284
    dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
285
    dc1394_destroy_handle(dc1394->handle);
286
 
287
    return 0;
288
}
289
 
290
#elif HAVE_LIBDC1394_2
291
static int dc1394_v2_read_header(AVFormatContext *c)
292
{
293
    dc1394_data* dc1394 = c->priv_data;
294
    dc1394camera_list_t *list;
295
    int res, i;
296
    struct dc1394_frame_format *fmt = NULL;
297
    struct dc1394_frame_rate *fps = NULL;
298
 
299
    if (dc1394_read_common(c, &fmt, &fps) != 0)
300
       return -1;
301
 
302
    /* Now let us prep the hardware. */
303
    dc1394->d = dc1394_new();
304
    dc1394_camera_enumerate (dc1394->d, &list);
305
    if ( !list || list->num == 0) {
306
        av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
307
        goto out;
308
    }
309
 
310
    /* FIXME: To select a specific camera I need to search in list its guid */
311
    dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
312
    if (list->num > 1) {
313
        av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
314
    }
315
 
316
    /* Freeing list of cameras */
317
    dc1394_camera_free_list (list);
318
 
319
    /* Select MAX Speed possible from the cam */
320
    if (dc1394->camera->bmode_capable>0) {
321
       dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
322
       i = DC1394_ISO_SPEED_800;
323
    } else {
324
       i = DC1394_ISO_SPEED_400;
325
    }
326
 
327
    for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
328
            res=dc1394_video_set_iso_speed(dc1394->camera, i);
329
    }
330
    if (res != DC1394_SUCCESS) {
331
        av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
332
        goto out_camera;
333
    }
334
 
335
    if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
336
        av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
337
        goto out_camera;
338
    }
339
 
340
    if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
341
        av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
342
        goto out_camera;
343
    }
344
    if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
345
        av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
346
        goto out_camera;
347
    }
348
 
349
    if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
350
        av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
351
        goto out_camera;
352
    }
353
    return 0;
354
 
355
out_camera:
356
    dc1394_capture_stop(dc1394->camera);
357
    dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
358
    dc1394_camera_free (dc1394->camera);
359
out:
360
    dc1394_free(dc1394->d);
361
    return -1;
362
}
363
 
364
static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
365
{
366
    struct dc1394_data *dc1394 = c->priv_data;
367
    int res;
368
 
369
    /* discard stale frame */
370
    if (dc1394->current_frame++) {
371
        if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
372
            av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
373
    }
374
 
375
    res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
376
    if (res == DC1394_SUCCESS) {
377
        dc1394->packet.data = (uint8_t *) dc1394->frame->image;
378
        dc1394->packet.pts  = dc1394->current_frame * 1000000 / dc1394->frame_rate;
379
        res = dc1394->frame->image_bytes;
380
    } else {
381
        av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
382
        dc1394->packet.data = NULL;
383
        res = -1;
384
    }
385
 
386
    *pkt = dc1394->packet;
387
    return res;
388
}
389
 
390
static int dc1394_v2_close(AVFormatContext * context)
391
{
392
    struct dc1394_data *dc1394 = context->priv_data;
393
 
394
    dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
395
    dc1394_capture_stop(dc1394->camera);
396
    dc1394_camera_free(dc1394->camera);
397
    dc1394_free(dc1394->d);
398
 
399
    return 0;
400
}
401
 
402
AVInputFormat ff_libdc1394_demuxer = {
403
    .name           = "libdc1394",
404
    .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
405
    .priv_data_size = sizeof(struct dc1394_data),
406
    .read_header    = dc1394_v2_read_header,
407
    .read_packet    = dc1394_v2_read_packet,
408
    .read_close     = dc1394_v2_close,
409
    .flags          = AVFMT_NOFILE,
410
    .priv_class     = &libdc1394_class,
411
};
412
 
413
#endif
414
#if HAVE_LIBDC1394_1
415
AVInputFormat ff_libdc1394_demuxer = {
416
    .name           = "libdc1394",
417
    .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
418
    .priv_data_size = sizeof(struct dc1394_data),
419
    .read_header    = dc1394_v1_read_header,
420
    .read_packet    = dc1394_v1_read_packet,
421
    .read_close     = dc1394_v1_close,
422
    .flags          = AVFMT_NOFILE,
423
    .priv_class     = &libdc1394_class,
424
};
425
#endif