26 #undef __STRICT_ANSI__ //workaround due to broken kernel headers
37 #include <sys/ioctl.h>
40 #define _LINUX_TIME_H 1
41 #include <linux/videodev.h>
52 struct video_capability video_cap;
53 struct video_audio audio_saved;
54 struct video_window video_win;
56 struct video_mbuf gb_buffers;
57 struct video_mmap gb_buf;
67 {.palette = VIDEO_PALETTE_YUV420P, .depth = 12, .pix_fmt =
PIX_FMT_YUV420P },
68 {.palette = VIDEO_PALETTE_YUV422, .depth = 16, .pix_fmt =
PIX_FMT_YUYV422 },
69 {.palette = VIDEO_PALETTE_UYVY, .depth = 16, .pix_fmt =
PIX_FMT_UYVY422 },
70 {.palette = VIDEO_PALETTE_YUYV, .depth = 16, .pix_fmt =
PIX_FMT_YUYV422 },
72 {.palette = VIDEO_PALETTE_RGB24, .depth = 24, .pix_fmt =
PIX_FMT_BGR24 },
73 {.palette = VIDEO_PALETTE_RGB565, .depth = 16, .pix_fmt =
PIX_FMT_BGR565 },
74 {.palette = VIDEO_PALETTE_GREY, .depth = 8, .pix_fmt =
PIX_FMT_GRAY8 },
83 int desired_palette, desired_depth;
84 struct video_tuner tuner;
85 struct video_audio audio;
86 struct video_picture pict;
90 av_log(s1,
AV_LOG_WARNING,
"V4L input device is deprecated and will be removed in the next release.");
92 if (ap->time_base.den <= 0) {
106 video_fd = open(s1->
filename, O_RDWR);
112 if (ioctl(video_fd, VIDIOCGCAP, &s->
video_cap) < 0) {
117 if (!(s->
video_cap.type & VID_TYPE_CAPTURE)) {
133 desired_palette = -1;
135 for (j = 0; j < vformat_num; j++) {
144 if (!ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
146 ioctl(video_fd, VIDIOCSTUNER, &tuner);
151 ioctl(video_fd, VIDIOCGAUDIO, &audio);
153 audio.flags &= ~VIDEO_AUDIO_MUTE;
154 ioctl(video_fd, VIDIOCSAUDIO, &audio);
156 ioctl(video_fd, VIDIOCGPICT, &pict);
157 av_dlog(s1,
"v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
158 pict.colour, pict.hue, pict.brightness, pict.contrast, pict.whiteness);
160 pict.palette = desired_palette;
161 pict.depth= desired_depth;
162 if (desired_palette == -1 || ioctl(video_fd, VIDIOCSPICT, &pict) < 0) {
163 for (j = 0; j < vformat_num; j++) {
166 if (-1 != ioctl(video_fd, VIDIOCSPICT, &pict))
169 if (j >= vformat_num)
173 if (ioctl(video_fd, VIDIOCGMBUF, &s->
gb_buffers) < 0) {
182 if (ioctl(video_fd, VIDIOCSWIN, s->
video_win) < 0) {
190 if (ioctl(video_fd, VIDIOCCAPTURE, &val) < 0) {
199 if ((
unsigned char*)-1 == s->
video_buf) {
200 s->
video_buf = mmap(0, s->
gb_buffers.size, PROT_READ|PROT_WRITE, MAP_PRIVATE, video_fd, 0);
201 if ((
unsigned char*)-1 == s->
video_buf) {
213 s->
gb_buf.format = pict.palette;
215 if (ioctl(video_fd, VIDIOCMCAPTURE, &s->
gb_buf) < 0) {
216 if (errno != EAGAIN) {
226 ioctl(video_fd, VIDIOCMCAPTURE, &s->
gb_buf);
232 for (j = 0; j < vformat_num; j++) {
240 if (j >= vformat_num)
263 while (ioctl(s->
fd, VIDIOCSYNC, &s->
gb_frame) < 0 &&
264 (errno == EAGAIN || errno == EINTR));
271 if (ioctl(s->
fd, VIDIOCMCAPTURE, &s->
gb_buf) < 0) {
288 int64_t curtime, delay;
305 ts.tv_sec = delay / 1000000;
306 ts.tv_nsec = (delay % 1000000) * 1000;
307 nanosleep(&ts,
NULL);
342 {
"standard",
"", offsetof(
VideoData, standard),
AV_OPT_TYPE_INT, {.dbl = VIDEO_MODE_NTSC}, VIDEO_MODE_PAL, VIDEO_MODE_NTSC,
AV_OPT_FLAG_DECODING_PARAM,
"standard" },
357 .
name =
"video4linux",
364 .priv_class = &v4l_class,