2 * IIDC1394 grab interface (uses libdc1394 and libraw1394)
3 * Copyright (c) 2004 Roman Shaposhnik
4 * Copyright (c) 2008 Alessandro Sappia
6 * This file is part of Libav.
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.
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.
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
24 #include "libavformat/avformat.h"
25 #include "libavutil/log.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/parseutils.h"
28 #include "libavutil/pixdesc.h"
31 #include <dc1394/dc1394.h>
32 #elif HAVE_LIBDC1394_1
33 #include <libraw1394/raw1394.h>
34 #include <libdc1394/dc1394_control.h>
36 #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
37 #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
38 #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
39 #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
40 #define DC1394_FRAMERATE_3_75 FRAMERATE_3_75
41 #define DC1394_FRAMERATE_7_5 FRAMERATE_7_5
42 #define DC1394_FRAMERATE_15 FRAMERATE_15
43 #define DC1394_FRAMERATE_30 FRAMERATE_30
44 #define DC1394_FRAMERATE_60 FRAMERATE_60
45 #define DC1394_FRAMERATE_120 FRAMERATE_120
46 #define DC1394_FRAMERATE_240 FRAMERATE_240
51 typedef struct dc1394_data {
54 raw1394handle_t handle;
55 dc1394_cameracapture camera;
57 #elif HAVE_LIBDC1394_2
59 dc1394camera_t *camera;
60 dc1394video_frame_t *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. */
71 struct dc1394_frame_format {
74 enum PixelFormat pix_fmt;
76 } dc1394_frame_formats[] = {
77 { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
78 { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
79 { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
80 { 0, 0, 0, 0 } /* gotta be the last one */
83 struct dc1394_frame_rate {
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 */
98 #define OFFSET(x) offsetof(dc1394_data, x)
99 #define DEC AV_OPT_FLAG_DECODING_PARAM
100 static const AVOption options[] = {
102 { "channel", "", offsetof(dc1394_data, channel), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
104 { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
105 { "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
106 { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
110 static const AVClass libdc1394_class = {
111 .class_name = "libdc1394 indev",
112 .item_name = av_default_item_name,
114 .version = LIBAVUTIL_VERSION_INT,
118 static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
119 struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
121 dc1394_data* dc1394 = c->priv_data;
123 struct dc1394_frame_format *fmt;
124 struct dc1394_frame_rate *fps;
125 enum PixelFormat pix_fmt;
127 AVRational framerate;
130 if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) {
131 av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
132 ret = AVERROR(EINVAL);
136 if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
137 av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n");
140 if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
141 av_log(c, AV_LOG_ERROR, "Couldn't parse framerate.\n");
144 #if FF_API_FORMAT_PARAMETERS
150 pix_fmt = ap->pix_fmt;
151 if (ap->time_base.num)
152 framerate = (AVRational){ap->time_base.den, ap->time_base.num};
154 dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
156 for (fmt = dc1394_frame_formats; fmt->width; fmt++)
157 if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
160 for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
161 if (fps->frame_rate == dc1394->frame_rate)
164 if (!fps->frame_rate || !fmt->width) {
165 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),
166 width, height, dc1394->frame_rate);
167 ret = AVERROR(EINVAL);
171 /* create a video stream */
172 vst = av_new_stream(c, 0);
174 ret = AVERROR(ENOMEM);
177 av_set_pts_info(vst, 64, 1, 1000);
178 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
179 vst->codec->codec_id = CODEC_ID_RAWVIDEO;
180 vst->codec->time_base.den = framerate.num;
181 vst->codec->time_base.num = framerate.den;
182 vst->codec->width = fmt->width;
183 vst->codec->height = fmt->height;
184 vst->codec->pix_fmt = fmt->pix_fmt;
187 av_init_packet(&dc1394->packet);
188 dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
189 dc1394->packet.stream_index = vst->index;
190 dc1394->packet.flags |= AV_PKT_FLAG_KEY;
192 dc1394->current_frame = 0;
194 vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
202 static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
204 dc1394_data* dc1394 = c->priv_data;
206 nodeid_t* camera_nodes;
208 struct dc1394_frame_format *fmt = NULL;
209 struct dc1394_frame_rate *fps = NULL;
211 if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
214 #if FF_API_FORMAT_PARAMETERS
216 dc1394->channel = ap->channel;
219 /* Now let us prep the hardware. */
220 dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
221 if (!dc1394->handle) {
222 av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
225 camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
226 if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
227 av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
230 res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
232 FORMAT_VGA_NONCOMPRESSED,
235 fps->frame_rate_id, 8, 1,
238 dc1394_free_camera_nodes(camera_nodes);
239 if (res != DC1394_SUCCESS) {
240 av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
244 res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
245 if (res != DC1394_SUCCESS) {
246 av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
253 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
254 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
256 dc1394_destroy_handle(dc1394->handle);
261 static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
263 struct dc1394_data *dc1394 = c->priv_data;
266 /* discard stale frame */
267 if (dc1394->current_frame++) {
268 if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
269 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
272 res = dc1394_dma_single_capture(&dc1394->camera);
274 if (res == DC1394_SUCCESS) {
275 dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
276 dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
277 res = dc1394->packet.size;
279 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
280 dc1394->packet.data = NULL;
284 *pkt = dc1394->packet;
288 static int dc1394_v1_close(AVFormatContext * context)
290 struct dc1394_data *dc1394 = context->priv_data;
292 dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
293 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
294 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
295 dc1394_destroy_handle(dc1394->handle);
300 #elif HAVE_LIBDC1394_2
301 static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
303 dc1394_data* dc1394 = c->priv_data;
304 dc1394camera_list_t *list;
306 struct dc1394_frame_format *fmt = NULL;
307 struct dc1394_frame_rate *fps = NULL;
309 if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
312 /* Now let us prep the hardware. */
313 dc1394->d = dc1394_new();
314 dc1394_camera_enumerate (dc1394->d, &list);
315 if ( !list || list->num == 0) {
316 av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
320 /* FIXME: To select a specific camera I need to search in list its guid */
321 dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
323 av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
326 /* Freeing list of cameras */
327 dc1394_camera_free_list (list);
329 /* Select MAX Speed possible from the cam */
330 if (dc1394->camera->bmode_capable>0) {
331 dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
332 i = DC1394_ISO_SPEED_800;
334 i = DC1394_ISO_SPEED_400;
337 for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
338 res=dc1394_video_set_iso_speed(dc1394->camera, i);
340 if (res != DC1394_SUCCESS) {
341 av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
345 if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
346 av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
350 if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
351 av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
354 if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
355 av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
359 if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
360 av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
366 dc1394_capture_stop(dc1394->camera);
367 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
368 dc1394_camera_free (dc1394->camera);
370 dc1394_free(dc1394->d);
374 static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
376 struct dc1394_data *dc1394 = c->priv_data;
379 /* discard stale frame */
380 if (dc1394->current_frame++) {
381 if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
382 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
385 res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
386 if (res == DC1394_SUCCESS) {
387 dc1394->packet.data = (uint8_t *)(dc1394->frame->image);
388 dc1394->packet.pts = (dc1394->current_frame * 1000000) / (dc1394->frame_rate);
389 res = dc1394->frame->image_bytes;
391 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
392 dc1394->packet.data = NULL;
396 *pkt = dc1394->packet;
400 static int dc1394_v2_close(AVFormatContext * context)
402 struct dc1394_data *dc1394 = context->priv_data;
404 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
405 dc1394_capture_stop(dc1394->camera);
406 dc1394_camera_free(dc1394->camera);
407 dc1394_free(dc1394->d);
412 AVInputFormat ff_libdc1394_demuxer = {
414 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
415 .priv_data_size = sizeof(struct dc1394_data),
416 .read_header = dc1394_v2_read_header,
417 .read_packet = dc1394_v2_read_packet,
418 .read_close = dc1394_v2_close,
419 .flags = AVFMT_NOFILE,
420 .priv_class = &libdc1394_class,
425 AVInputFormat ff_libdc1394_demuxer = {
427 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
428 .priv_data_size = sizeof(struct dc1394_data),
429 .read_header = dc1394_v1_read_header,
430 .read_packet = dc1394_v1_read_packet,
431 .read_close = dc1394_v1_close,
432 .flags = AVFMT_NOFILE,
433 .priv_class = &libdc1394_class,