summaryrefslogtreecommitdiff
path: root/libavdevice/libdc1394.c
blob: 1f35135a658bea42929976184c316a4bb1814013 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
/*
 * IIDC1394 grab interface (uses libdc1394 and libraw1394)
 * Copyright (c) 2004 Roman Shaposhnik
 * Copyright (c) 2008 Alessandro Sappia
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "config.h"
#include "libavformat/avformat.h"

#if HAVE_LIBDC1394_2
#include <dc1394/dc1394.h>
#elif HAVE_LIBDC1394_1
#include <libraw1394/raw1394.h>
#include <libdc1394/dc1394_control.h>

#define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
#define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
#define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
#define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
#define DC1394_FRAMERATE_3_75  FRAMERATE_3_75
#define DC1394_FRAMERATE_7_5   FRAMERATE_7_5
#define DC1394_FRAMERATE_15    FRAMERATE_15
#define DC1394_FRAMERATE_30    FRAMERATE_30
#define DC1394_FRAMERATE_60    FRAMERATE_60
#define DC1394_FRAMERATE_120   FRAMERATE_120
#define DC1394_FRAMERATE_240   FRAMERATE_240
#endif

#undef free

typedef struct dc1394_data {
#if HAVE_LIBDC1394_1
    raw1394handle_t handle;
    dc1394_cameracapture camera;
#elif HAVE_LIBDC1394_2
    dc1394_t *d;
    dc1394camera_t *camera;
    dc1394video_frame_t *frame;
#endif
    int current_frame;
    int fps;

    AVPacket packet;
} dc1394_data;

struct dc1394_frame_format {
    int width;
    int height;
    enum PixelFormat pix_fmt;
    int frame_size_id;
} dc1394_frame_formats[] = {
    { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
    { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
    { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
    { 0, 0, 0, 0 } /* gotta be the last one */
};

struct dc1394_frame_rate {
    int frame_rate;
    int frame_rate_id;
} dc1394_frame_rates[] = {
    {  1875, DC1394_FRAMERATE_1_875 },
    {  3750, DC1394_FRAMERATE_3_75  },
    {  7500, DC1394_FRAMERATE_7_5   },
    { 15000, DC1394_FRAMERATE_15    },
    { 30000, DC1394_FRAMERATE_30    },
    { 60000, DC1394_FRAMERATE_60    },
    {120000, DC1394_FRAMERATE_120   },
    {240000, DC1394_FRAMERATE_240    },
    { 0, 0 } /* gotta be the last one */
};

static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
                                     struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
{
    dc1394_data* dc1394 = c->priv_data;
    AVStream* vst;
    struct dc1394_frame_format *fmt;
    struct dc1394_frame_rate *fps;
    enum PixelFormat pix_fmt = ap->pix_fmt == PIX_FMT_NONE ? PIX_FMT_UYVY422 : ap->pix_fmt; /* defaults */
    int width                = !ap->width ? 320 : ap->width;
    int height               = !ap->height ? 240 : ap->height;
    int frame_rate           = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);

    for (fmt = dc1394_frame_formats; fmt->width; fmt++)
         if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
             break;

    for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
         if (fps->frame_rate == frame_rate)
             break;

    if (!fps->frame_rate || !fmt->width) {
        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),
                                                                                                width, height, frame_rate);
        goto out;
    }

    /* create a video stream */
    vst = av_new_stream(c, 0);
    if (!vst)
        goto out;
    av_set_pts_info(vst, 64, 1, 1000);
    vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
    vst->codec->codec_id = CODEC_ID_RAWVIDEO;
    vst->codec->time_base.den = fps->frame_rate;
    vst->codec->time_base.num = 1000;
    vst->codec->width = fmt->width;
    vst->codec->height = fmt->height;
    vst->codec->pix_fmt = fmt->pix_fmt;

    /* packet init */
    av_init_packet(&dc1394->packet);
    dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
    dc1394->packet.stream_index = vst->index;
    dc1394->packet.flags |= AV_PKT_FLAG_KEY;

    dc1394->current_frame = 0;
    dc1394->fps = fps->frame_rate;

    vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
    *select_fps = fps;
    *select_fmt = fmt;
    return 0;
out:
    return -1;
}

#if HAVE_LIBDC1394_1
static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
{
    dc1394_data* dc1394 = c->priv_data;
    AVStream* vst;
    nodeid_t* camera_nodes;
    int res;
    struct dc1394_frame_format *fmt = NULL;
    struct dc1394_frame_rate *fps = NULL;

    if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
        return -1;

    /* Now let us prep the hardware. */
    dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
    if (!dc1394->handle) {
        av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
        goto out;
    }
    camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
    if (!camera_nodes || camera_nodes[ap->channel] == DC1394_NO_CAMERA) {
        av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", ap->channel);
        goto out_handle;
    }
    res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[ap->channel],
                                   0,
                                   FORMAT_VGA_NONCOMPRESSED,
                                   fmt->frame_size_id,
                                   SPEED_400,
                                   fps->frame_rate_id, 8, 1,
                                   c->filename,
                                   &dc1394->camera);
    dc1394_free_camera_nodes(camera_nodes);
    if (res != DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
        goto out_handle;
    }

    res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
    if (res != DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
        goto out_handle_dma;
    }

    return 0;

out_handle_dma:
    dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
    dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
out_handle:
    dc1394_destroy_handle(dc1394->handle);
out:
    return -1;
}

static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
{
    struct dc1394_data *dc1394 = c->priv_data;
    int res;

    /* discard stale frame */
    if (dc1394->current_frame++) {
        if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
            av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
    }

    res = dc1394_dma_single_capture(&dc1394->camera);

    if (res == DC1394_SUCCESS) {
        dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
        dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->fps;
        res = dc1394->packet.size;
    } else {
        av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
        dc1394->packet.data = NULL;
        res = -1;
    }

    *pkt = dc1394->packet;
    return res;
}

static int dc1394_v1_close(AVFormatContext * context)
{
    struct dc1394_data *dc1394 = context->priv_data;

    dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
    dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
    dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
    dc1394_destroy_handle(dc1394->handle);

    return 0;
}

#elif HAVE_LIBDC1394_2
static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
{
    dc1394_data* dc1394 = c->priv_data;
    dc1394camera_list_t *list;
    int res, i;
    struct dc1394_frame_format *fmt = NULL;
    struct dc1394_frame_rate *fps = NULL;

    if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
       return -1;

    /* Now let us prep the hardware. */
    dc1394->d = dc1394_new();
    dc1394_camera_enumerate (dc1394->d, &list);
    if ( !list || list->num == 0) {
        av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
        goto out;
    }

    /* FIXME: To select a specific camera I need to search in list its guid */
    dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
    if (list->num > 1) {
        av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
    }

    /* Freeing list of cameras */
    dc1394_camera_free_list (list);

    /* Select MAX Speed possible from the cam */
    if (dc1394->camera->bmode_capable>0) {
       dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
       i = DC1394_ISO_SPEED_800;
    } else {
       i = DC1394_ISO_SPEED_400;
    }

    for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
            res=dc1394_video_set_iso_speed(dc1394->camera, i);
    }
    if (res != DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
        goto out_camera;
    }

    if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
        goto out_camera;
    }

    if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
        goto out_camera;
    }
    if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
        goto out_camera;
    }

    if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
        av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
        goto out_camera;
    }
    return 0;

out_camera:
    dc1394_capture_stop(dc1394->camera);
    dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
    dc1394_camera_free (dc1394->camera);
out:
    dc1394_free(dc1394->d);
    return -1;
}

static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
{
    struct dc1394_data *dc1394 = c->priv_data;
    int res;

    /* discard stale frame */
    if (dc1394->current_frame++) {
        if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
            av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
    }

    res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
    if (res == DC1394_SUCCESS) {
        dc1394->packet.data = (uint8_t *)(dc1394->frame->image);
        dc1394->packet.pts = (dc1394->current_frame  * 1000000) / (dc1394->fps);
        res = dc1394->frame->image_bytes;
    } else {
        av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
        dc1394->packet.data = NULL;
        res = -1;
    }

    *pkt = dc1394->packet;
    return res;
}

static int dc1394_v2_close(AVFormatContext * context)
{
    struct dc1394_data *dc1394 = context->priv_data;

    dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
    dc1394_capture_stop(dc1394->camera);
    dc1394_camera_free(dc1394->camera);
    dc1394_free(dc1394->d);

    return 0;
}

AVInputFormat libdc1394_demuxer = {
    .name           = "libdc1394",
    .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
    .priv_data_size = sizeof(struct dc1394_data),
    .read_header    = dc1394_v2_read_header,
    .read_packet    = dc1394_v2_read_packet,
    .read_close     = dc1394_v2_close,
    .flags          = AVFMT_NOFILE
};

#endif
#if HAVE_LIBDC1394_1
AVInputFormat libdc1394_demuxer = {
    .name           = "libdc1394",
    .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
    .priv_data_size = sizeof(struct dc1394_data),
    .read_header    = dc1394_v1_read_header,
    .read_packet    = dc1394_v1_read_packet,
    .read_close     = dc1394_v1_close,
    .flags          = AVFMT_NOFILE
};
#endif