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
,
115 .category
= AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
,
119 static inline int dc1394_read_common(AVFormatContext
*c
,
120 struct dc1394_frame_format
**select_fmt
, struct dc1394_frame_rate
**select_fps
)
122 dc1394_data
* dc1394
= c
->priv_data
;
124 struct dc1394_frame_format
*fmt
;
125 struct dc1394_frame_rate
*fps
;
126 enum AVPixelFormat pix_fmt
;
128 AVRational framerate
;
131 if ((pix_fmt
= av_get_pix_fmt(dc1394
->pixel_format
)) == AV_PIX_FMT_NONE
) {
132 av_log(c
, AV_LOG_ERROR
, "No such pixel format: %s.\n", dc1394
->pixel_format
);
133 ret
= AVERROR(EINVAL
);
137 if ((ret
= av_parse_video_size(&width
, &height
, dc1394
->video_size
)) < 0) {
138 av_log(c
, AV_LOG_ERROR
, "Could not parse video size '%s'.\n", dc1394
->video_size
);
141 if ((ret
= av_parse_video_rate(&framerate
, dc1394
->framerate
)) < 0) {
142 av_log(c
, AV_LOG_ERROR
, "Could not parse framerate '%s'.\n", dc1394
->framerate
);
145 dc1394
->frame_rate
= av_rescale(1000, framerate
.num
, framerate
.den
);
147 for (fmt
= dc1394_frame_formats
; fmt
->width
; fmt
++)
148 if (fmt
->pix_fmt
== pix_fmt
&& fmt
->width
== width
&& fmt
->height
== height
)
151 for (fps
= dc1394_frame_rates
; fps
->frame_rate
; fps
++)
152 if (fps
->frame_rate
== dc1394
->frame_rate
)
155 if (!fps
->frame_rate
|| !fmt
->width
) {
156 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
),
157 width
, height
, dc1394
->frame_rate
);
158 ret
= AVERROR(EINVAL
);
162 /* create a video stream */
163 vst
= avformat_new_stream(c
, NULL
);
165 ret
= AVERROR(ENOMEM
);
168 avpriv_set_pts_info(vst
, 64, 1, 1000);
169 vst
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
170 vst
->codec
->codec_id
= AV_CODEC_ID_RAWVIDEO
;
171 vst
->codec
->time_base
.den
= framerate
.num
;
172 vst
->codec
->time_base
.num
= framerate
.den
;
173 vst
->codec
->width
= fmt
->width
;
174 vst
->codec
->height
= fmt
->height
;
175 vst
->codec
->pix_fmt
= fmt
->pix_fmt
;
178 av_init_packet(&dc1394
->packet
);
179 dc1394
->packet
.size
= avpicture_get_size(fmt
->pix_fmt
, fmt
->width
, fmt
->height
);
180 dc1394
->packet
.stream_index
= vst
->index
;
181 dc1394
->packet
.flags
|= AV_PKT_FLAG_KEY
;
183 dc1394
->current_frame
= 0;
185 vst
->codec
->bit_rate
= av_rescale(dc1394
->packet
.size
* 8, fps
->frame_rate
, 1000);
193 static int dc1394_v1_read_header(AVFormatContext
*c
)
195 dc1394_data
* dc1394
= c
->priv_data
;
197 nodeid_t
* camera_nodes
;
199 struct dc1394_frame_format
*fmt
= NULL
;
200 struct dc1394_frame_rate
*fps
= NULL
;
202 if (dc1394_read_common(c
, &fmt
, &fps
) != 0)
205 /* Now let us prep the hardware. */
206 dc1394
->handle
= dc1394_create_handle(0); /* FIXME: gotta have ap->port */
207 if (!dc1394
->handle
) {
208 av_log(c
, AV_LOG_ERROR
, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
211 camera_nodes
= dc1394_get_camera_nodes(dc1394
->handle
, &res
, 1);
212 if (!camera_nodes
|| camera_nodes
[dc1394
->channel
] == DC1394_NO_CAMERA
) {
213 av_log(c
, AV_LOG_ERROR
, "There's no IIDC camera on the channel %d\n", dc1394
->channel
);
216 res
= dc1394_dma_setup_capture(dc1394
->handle
, camera_nodes
[dc1394
->channel
],
218 FORMAT_VGA_NONCOMPRESSED
,
221 fps
->frame_rate_id
, 8, 1,
224 dc1394_free_camera_nodes(camera_nodes
);
225 if (res
!= DC1394_SUCCESS
) {
226 av_log(c
, AV_LOG_ERROR
, "Can't prepare camera for the DMA capture\n");
230 res
= dc1394_start_iso_transmission(dc1394
->handle
, dc1394
->camera
.node
);
231 if (res
!= DC1394_SUCCESS
) {
232 av_log(c
, AV_LOG_ERROR
, "Can't start isochronous transmission\n");
239 dc1394_dma_unlisten(dc1394
->handle
, &dc1394
->camera
);
240 dc1394_dma_release_camera(dc1394
->handle
, &dc1394
->camera
);
242 dc1394_destroy_handle(dc1394
->handle
);
247 static int dc1394_v1_read_packet(AVFormatContext
*c
, AVPacket
*pkt
)
249 struct dc1394_data
*dc1394
= c
->priv_data
;
252 /* discard stale frame */
253 if (dc1394
->current_frame
++) {
254 if (dc1394_dma_done_with_buffer(&dc1394
->camera
) != DC1394_SUCCESS
)
255 av_log(c
, AV_LOG_ERROR
, "failed to release %d frame\n", dc1394
->current_frame
);
258 res
= dc1394_dma_single_capture(&dc1394
->camera
);
260 if (res
== DC1394_SUCCESS
) {
261 dc1394
->packet
.data
= (uint8_t *)(dc1394
->camera
.capture_buffer
);
262 dc1394
->packet
.pts
= (dc1394
->current_frame
* 1000000) / dc1394
->frame_rate
;
263 res
= dc1394
->packet
.size
;
265 av_log(c
, AV_LOG_ERROR
, "DMA capture failed\n");
266 dc1394
->packet
.data
= NULL
;
270 *pkt
= dc1394
->packet
;
274 static int dc1394_v1_close(AVFormatContext
* context
)
276 struct dc1394_data
*dc1394
= context
->priv_data
;
278 dc1394_stop_iso_transmission(dc1394
->handle
, dc1394
->camera
.node
);
279 dc1394_dma_unlisten(dc1394
->handle
, &dc1394
->camera
);
280 dc1394_dma_release_camera(dc1394
->handle
, &dc1394
->camera
);
281 dc1394_destroy_handle(dc1394
->handle
);
286 #elif HAVE_LIBDC1394_2
287 static int dc1394_v2_read_header(AVFormatContext
*c
)
289 dc1394_data
* dc1394
= c
->priv_data
;
290 dc1394camera_list_t
*list
;
292 struct dc1394_frame_format
*fmt
= NULL
;
293 struct dc1394_frame_rate
*fps
= NULL
;
295 if (dc1394_read_common(c
, &fmt
, &fps
) != 0)
298 /* Now let us prep the hardware. */
299 dc1394
->d
= dc1394_new();
300 dc1394_camera_enumerate (dc1394
->d
, &list
);
301 if ( !list
|| list
->num
== 0) {
302 av_log(c
, AV_LOG_ERROR
, "Unable to look for an IIDC camera\n\n");
306 /* FIXME: To select a specific camera I need to search in list its guid */
307 dc1394
->camera
= dc1394_camera_new (dc1394
->d
, list
->ids
[0].guid
);
309 av_log(c
, AV_LOG_INFO
, "Working with the first camera found\n");
312 /* Freeing list of cameras */
313 dc1394_camera_free_list (list
);
315 /* Select MAX Speed possible from the cam */
316 if (dc1394
->camera
->bmode_capable
>0) {
317 dc1394_video_set_operation_mode(dc1394
->camera
, DC1394_OPERATION_MODE_1394B
);
318 i
= DC1394_ISO_SPEED_800
;
320 i
= DC1394_ISO_SPEED_400
;
323 for (res
= DC1394_FAILURE
; i
>= DC1394_ISO_SPEED_MIN
&& res
!= DC1394_SUCCESS
; i
--) {
324 res
=dc1394_video_set_iso_speed(dc1394
->camera
, i
);
326 if (res
!= DC1394_SUCCESS
) {
327 av_log(c
, AV_LOG_ERROR
, "Couldn't set ISO Speed\n");
331 if (dc1394_video_set_mode(dc1394
->camera
, fmt
->frame_size_id
) != DC1394_SUCCESS
) {
332 av_log(c
, AV_LOG_ERROR
, "Couldn't set video format\n");
336 if (dc1394_video_set_framerate(dc1394
->camera
,fps
->frame_rate_id
) != DC1394_SUCCESS
) {
337 av_log(c
, AV_LOG_ERROR
, "Couldn't set framerate %d \n",fps
->frame_rate
);
340 if (dc1394_capture_setup(dc1394
->camera
, 10, DC1394_CAPTURE_FLAGS_DEFAULT
)!=DC1394_SUCCESS
) {
341 av_log(c
, AV_LOG_ERROR
, "Cannot setup camera \n");
345 if (dc1394_video_set_transmission(dc1394
->camera
, DC1394_ON
) !=DC1394_SUCCESS
) {
346 av_log(c
, AV_LOG_ERROR
, "Cannot start capture\n");
352 dc1394_capture_stop(dc1394
->camera
);
353 dc1394_video_set_transmission(dc1394
->camera
, DC1394_OFF
);
354 dc1394_camera_free (dc1394
->camera
);
356 dc1394_free(dc1394
->d
);
360 static int dc1394_v2_read_packet(AVFormatContext
*c
, AVPacket
*pkt
)
362 struct dc1394_data
*dc1394
= c
->priv_data
;
365 /* discard stale frame */
366 if (dc1394
->current_frame
++) {
367 if (dc1394_capture_enqueue(dc1394
->camera
, dc1394
->frame
) != DC1394_SUCCESS
)
368 av_log(c
, AV_LOG_ERROR
, "failed to release %d frame\n", dc1394
->current_frame
);
371 res
= dc1394_capture_dequeue(dc1394
->camera
, DC1394_CAPTURE_POLICY_WAIT
, &dc1394
->frame
);
372 if (res
== DC1394_SUCCESS
) {
373 dc1394
->packet
.data
= (uint8_t *) dc1394
->frame
->image
;
374 dc1394
->packet
.pts
= dc1394
->current_frame
* 1000000 / dc1394
->frame_rate
;
375 res
= dc1394
->frame
->image_bytes
;
377 av_log(c
, AV_LOG_ERROR
, "DMA capture failed\n");
378 dc1394
->packet
.data
= NULL
;
382 *pkt
= dc1394
->packet
;
386 static int dc1394_v2_close(AVFormatContext
* context
)
388 struct dc1394_data
*dc1394
= context
->priv_data
;
390 dc1394_video_set_transmission(dc1394
->camera
, DC1394_OFF
);
391 dc1394_capture_stop(dc1394
->camera
);
392 dc1394_camera_free(dc1394
->camera
);
393 dc1394_free(dc1394
->d
);
398 AVInputFormat ff_libdc1394_demuxer
= {
400 .long_name
= NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
401 .priv_data_size
= sizeof(struct dc1394_data
),
402 .read_header
= dc1394_v2_read_header
,
403 .read_packet
= dc1394_v2_read_packet
,
404 .read_close
= dc1394_v2_close
,
405 .flags
= AVFMT_NOFILE
,
406 .priv_class
= &libdc1394_class
,
411 AVInputFormat ff_libdc1394_demuxer
= {
413 .long_name
= NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
414 .priv_data_size
= sizeof(struct dc1394_data
),
415 .read_header
= dc1394_v1_read_header
,
416 .read_packet
= dc1394_v1_read_packet
,
417 .read_close
= dc1394_v1_close
,
418 .flags
= AVFMT_NOFILE
,
419 .priv_class
= &libdc1394_class
,