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
26 #include <dc1394/dc1394.h>
27 #elif HAVE_LIBDC1394_1
28 #include <libraw1394/raw1394.h>
29 #include <libdc1394/dc1394_control.h>
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
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"
52 #include "libavformat/avformat.h"
53 #include "libavformat/internal.h"
55 typedef struct dc1394_data {
58 raw1394handle_t handle;
59 dc1394_cameracapture camera;
61 #elif HAVE_LIBDC1394_2
63 dc1394camera_t *camera;
64 dc1394video_frame_t *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. */
76 struct dc1394_frame_format {
79 enum AVPixelFormat pix_fmt;
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 */
89 struct dc1394_frame_rate {
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 */
104 #define OFFSET(x) offsetof(dc1394_data, x)
105 #define DEC AV_OPT_FLAG_DECODING_PARAM
106 static const AVOption options[] = {
108 { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
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 },
116 static const AVClass libdc1394_class = {
117 .class_name = "libdc1394 indev",
118 .item_name = av_default_item_name,
120 .version = LIBAVUTIL_VERSION_INT,
124 static inline int dc1394_read_common(AVFormatContext *c,
125 struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
127 dc1394_data* dc1394 = c->priv_data;
129 struct dc1394_frame_format *fmt;
130 struct dc1394_frame_rate *fps;
131 enum AVPixelFormat pix_fmt;
133 AVRational framerate;
136 if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
137 av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
138 ret = AVERROR(EINVAL);
142 if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
143 av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
146 if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
147 av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
150 dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
152 for (fmt = dc1394_frame_formats; fmt->width; fmt++)
153 if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
156 for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
157 if (fps->frame_rate == dc1394->frame_rate)
160 if (!fps->frame_rate || !fmt->width) {
161 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),
162 width, height, dc1394->frame_rate);
163 ret = AVERROR(EINVAL);
167 /* create a video stream */
168 vst = avformat_new_stream(c, NULL);
170 ret = AVERROR(ENOMEM);
173 avpriv_set_pts_info(vst, 64, 1, 1000);
174 vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
175 vst->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
176 vst->codecpar->width = fmt->width;
177 vst->codecpar->height = fmt->height;
178 vst->codecpar->format = fmt->pix_fmt;
179 vst->avg_frame_rate = framerate;
181 dc1394->current_frame = 0;
182 dc1394->stream_index = vst->index;
183 dc1394->size = av_image_get_buffer_size(fmt->pix_fmt,
184 fmt->width, fmt->height, 1);
186 vst->codecpar->bit_rate = av_rescale(dc1394->size * 8,
187 fps->frame_rate, 1000);
195 static int dc1394_v1_read_header(AVFormatContext *c)
197 dc1394_data* dc1394 = c->priv_data;
199 nodeid_t* camera_nodes;
201 struct dc1394_frame_format *fmt = NULL;
202 struct dc1394_frame_rate *fps = NULL;
204 if (dc1394_read_common(c, &fmt, &fps) != 0)
207 /* Now let us prep the hardware. */
208 dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
209 if (!dc1394->handle) {
210 av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
213 camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
214 if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
215 av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
218 res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
220 FORMAT_VGA_NONCOMPRESSED,
223 fps->frame_rate_id, 8, 1,
226 dc1394_free_camera_nodes(camera_nodes);
227 if (res != DC1394_SUCCESS) {
228 av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
232 res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
233 if (res != DC1394_SUCCESS) {
234 av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
241 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
242 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
244 dc1394_destroy_handle(dc1394->handle);
249 static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
251 struct dc1394_data *dc1394 = c->priv_data;
254 /* discard stale frame */
255 if (dc1394->current_frame++) {
256 if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
257 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
260 res = dc1394_dma_single_capture(&dc1394->camera);
262 if (res == DC1394_SUCCESS) {
263 pkt->data = (uint8_t *)dc1394->camera.capture_buffer;
264 pkt->size = dc1394->size;
265 pkt->pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
266 pkt->flags |= AV_PKT_FLAG_KEY;
267 pkt->stream_index = dc1394->stream_index;
269 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
270 return AVERROR_INVALIDDATA;
276 static int dc1394_v1_close(AVFormatContext * context)
278 struct dc1394_data *dc1394 = context->priv_data;
280 dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
281 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
282 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
283 dc1394_destroy_handle(dc1394->handle);
288 #elif HAVE_LIBDC1394_2
289 static int dc1394_v2_read_header(AVFormatContext *c)
291 dc1394_data* dc1394 = c->priv_data;
292 dc1394camera_list_t *list;
294 struct dc1394_frame_format *fmt = NULL;
295 struct dc1394_frame_rate *fps = NULL;
297 if (dc1394_read_common(c, &fmt, &fps) != 0)
300 /* Now let us prep the hardware. */
301 dc1394->d = dc1394_new();
302 dc1394_camera_enumerate (dc1394->d, &list);
303 if ( !list || list->num == 0) {
304 av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
308 /* FIXME: To select a specific camera I need to search in list its guid */
309 dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
311 av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
314 /* Freeing list of cameras */
315 dc1394_camera_free_list (list);
317 /* Select MAX Speed possible from the cam */
318 if (dc1394->camera->bmode_capable>0) {
319 dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
320 i = DC1394_ISO_SPEED_800;
322 i = DC1394_ISO_SPEED_400;
325 for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
326 res=dc1394_video_set_iso_speed(dc1394->camera, i);
328 if (res != DC1394_SUCCESS) {
329 av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
333 if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
334 av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
338 if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
339 av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
342 if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
343 av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
347 if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
348 av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
354 dc1394_capture_stop(dc1394->camera);
355 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
356 dc1394_camera_free (dc1394->camera);
358 dc1394_free(dc1394->d);
362 static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
364 struct dc1394_data *dc1394 = c->priv_data;
367 /* discard stale frame */
368 if (dc1394->current_frame++) {
369 if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
370 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
373 res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
374 if (res == DC1394_SUCCESS) {
375 pkt->data = (uint8_t *)dc1394->frame->image;
376 pkt->size = dc1394->frame->image_bytes;
377 pkt->pts = dc1394->current_frame * 1000000 / dc1394->frame_rate;
378 pkt->flags |= AV_PKT_FLAG_KEY;
379 pkt->stream_index = dc1394->stream_index;
381 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
382 return AVERROR_INVALIDDATA;
388 static int dc1394_v2_close(AVFormatContext * context)
390 struct dc1394_data *dc1394 = context->priv_data;
392 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
393 dc1394_capture_stop(dc1394->camera);
394 dc1394_camera_free(dc1394->camera);
395 dc1394_free(dc1394->d);
400 AVInputFormat ff_libdc1394_demuxer = {
402 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
403 .priv_data_size = sizeof(struct dc1394_data),
404 .read_header = dc1394_v2_read_header,
405 .read_packet = dc1394_v2_read_packet,
406 .read_close = dc1394_v2_close,
407 .flags = AVFMT_NOFILE,
408 .priv_class = &libdc1394_class,
413 AVInputFormat ff_libdc1394_demuxer = {
415 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
416 .priv_data_size = sizeof(struct dc1394_data),
417 .read_header = dc1394_v1_read_header,
418 .read_packet = dc1394_v1_read_packet,
419 .read_close = dc1394_v1_close,
420 .flags = AVFMT_NOFILE,
421 .priv_class = &libdc1394_class,