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 FFmpeg.
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.
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.
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
24 #include "libavformat/avformat.h"
25 #include "libavformat/internal.h"
26 #include "libavutil/log.h"
27 #include "libavutil/mathematics.h"
28 #include "libavutil/opt.h"
29 #include "libavutil/parseutils.h"
30 #include "libavutil/pixdesc.h"
33 #include <dc1394/dc1394.h>
34 #elif HAVE_LIBDC1394_1
35 #include <libraw1394/raw1394.h>
36 #include <libdc1394/dc1394_control.h>
38 #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
39 #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
40 #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
41 #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
42 #define DC1394_FRAMERATE_3_75 FRAMERATE_3_75
43 #define DC1394_FRAMERATE_7_5 FRAMERATE_7_5
44 #define DC1394_FRAMERATE_15 FRAMERATE_15
45 #define DC1394_FRAMERATE_30 FRAMERATE_30
46 #define DC1394_FRAMERATE_60 FRAMERATE_60
47 #define DC1394_FRAMERATE_120 FRAMERATE_120
48 #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 AVPixelFormat pix_fmt;
76 } dc1394_frame_formats[] = {
77 { 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
78 { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
79 { 640, 480, AV_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), AV_OPT_TYPE_INT, {.i64 = 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), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
105 { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
106 { "framerate", "", OFFSET(framerate), AV_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,
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 AVPixelFormat pix_fmt;
127 AVRational framerate;
130 if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_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, "Could not parse video size '%s'.\n", dc1394->video_size);
140 if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
141 av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
144 dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
146 for (fmt = dc1394_frame_formats; fmt->width; fmt++)
147 if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
150 for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
151 if (fps->frame_rate == dc1394->frame_rate)
154 if (!fps->frame_rate || !fmt->width) {
155 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),
156 width, height, dc1394->frame_rate);
157 ret = AVERROR(EINVAL);
161 /* create a video stream */
162 vst = avformat_new_stream(c, NULL);
164 ret = AVERROR(ENOMEM);
167 avpriv_set_pts_info(vst, 64, 1, 1000);
168 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
169 vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
170 vst->codec->time_base.den = framerate.num;
171 vst->codec->time_base.num = framerate.den;
172 vst->codec->width = fmt->width;
173 vst->codec->height = fmt->height;
174 vst->codec->pix_fmt = fmt->pix_fmt;
177 av_init_packet(&dc1394->packet);
178 dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
179 dc1394->packet.stream_index = vst->index;
180 dc1394->packet.flags |= AV_PKT_FLAG_KEY;
182 dc1394->current_frame = 0;
184 vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
192 static int dc1394_v1_read_header(AVFormatContext *c)
194 dc1394_data* dc1394 = c->priv_data;
196 nodeid_t* camera_nodes;
198 struct dc1394_frame_format *fmt = NULL;
199 struct dc1394_frame_rate *fps = NULL;
201 if (dc1394_read_common(c, &fmt, &fps) != 0)
204 /* Now let us prep the hardware. */
205 dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
206 if (!dc1394->handle) {
207 av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
210 camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
211 if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
212 av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
215 res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
217 FORMAT_VGA_NONCOMPRESSED,
220 fps->frame_rate_id, 8, 1,
223 dc1394_free_camera_nodes(camera_nodes);
224 if (res != DC1394_SUCCESS) {
225 av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
229 res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
230 if (res != DC1394_SUCCESS) {
231 av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
238 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
239 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
241 dc1394_destroy_handle(dc1394->handle);
246 static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
248 struct dc1394_data *dc1394 = c->priv_data;
251 /* discard stale frame */
252 if (dc1394->current_frame++) {
253 if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
254 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
257 res = dc1394_dma_single_capture(&dc1394->camera);
259 if (res == DC1394_SUCCESS) {
260 dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
261 dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
262 res = dc1394->packet.size;
264 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
265 dc1394->packet.data = NULL;
269 *pkt = dc1394->packet;
273 static int dc1394_v1_close(AVFormatContext * context)
275 struct dc1394_data *dc1394 = context->priv_data;
277 dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
278 dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
279 dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
280 dc1394_destroy_handle(dc1394->handle);
285 #elif HAVE_LIBDC1394_2
286 static int dc1394_v2_read_header(AVFormatContext *c)
288 dc1394_data* dc1394 = c->priv_data;
289 dc1394camera_list_t *list;
291 struct dc1394_frame_format *fmt = NULL;
292 struct dc1394_frame_rate *fps = NULL;
294 if (dc1394_read_common(c, &fmt, &fps) != 0)
297 /* Now let us prep the hardware. */
298 dc1394->d = dc1394_new();
299 dc1394_camera_enumerate (dc1394->d, &list);
300 if ( !list || list->num == 0) {
301 av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
305 /* FIXME: To select a specific camera I need to search in list its guid */
306 dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
308 av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
311 /* Freeing list of cameras */
312 dc1394_camera_free_list (list);
314 /* Select MAX Speed possible from the cam */
315 if (dc1394->camera->bmode_capable>0) {
316 dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
317 i = DC1394_ISO_SPEED_800;
319 i = DC1394_ISO_SPEED_400;
322 for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
323 res=dc1394_video_set_iso_speed(dc1394->camera, i);
325 if (res != DC1394_SUCCESS) {
326 av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
330 if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
331 av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
335 if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
336 av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
339 if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
340 av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
344 if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
345 av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
351 dc1394_capture_stop(dc1394->camera);
352 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
353 dc1394_camera_free (dc1394->camera);
355 dc1394_free(dc1394->d);
359 static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
361 struct dc1394_data *dc1394 = c->priv_data;
364 /* discard stale frame */
365 if (dc1394->current_frame++) {
366 if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
367 av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
370 res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
371 if (res == DC1394_SUCCESS) {
372 dc1394->packet.data = (uint8_t *) dc1394->frame->image;
373 dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate;
374 res = dc1394->frame->image_bytes;
376 av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
377 dc1394->packet.data = NULL;
381 *pkt = dc1394->packet;
385 static int dc1394_v2_close(AVFormatContext * context)
387 struct dc1394_data *dc1394 = context->priv_data;
389 dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
390 dc1394_capture_stop(dc1394->camera);
391 dc1394_camera_free(dc1394->camera);
392 dc1394_free(dc1394->d);
397 AVInputFormat ff_libdc1394_demuxer = {
399 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
400 .priv_data_size = sizeof(struct dc1394_data),
401 .read_header = dc1394_v2_read_header,
402 .read_packet = dc1394_v2_read_packet,
403 .read_close = dc1394_v2_close,
404 .flags = AVFMT_NOFILE,
405 .priv_class = &libdc1394_class,
410 AVInputFormat ff_libdc1394_demuxer = {
412 .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
413 .priv_data_size = sizeof(struct dc1394_data),
414 .read_header = dc1394_v1_read_header,
415 .read_packet = dc1394_v1_read_packet,
416 .read_close = dc1394_v1_close,
417 .flags = AVFMT_NOFILE,
418 .priv_class = &libdc1394_class,