#include <linux/videodev2.h>
#endif
#include <time.h>
-#include <strings.h>
#include "libavutil/imgutils.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "avdevice.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
+#include "libavutil/avstring.h"
+
+#if CONFIG_LIBV4L2
+#include <libv4l2.h>
+#else
+#define v4l2_open open
+#define v4l2_close close
+#define v4l2_dup dup
+#define v4l2_ioctl ioctl
+#define v4l2_read read
+#define v4l2_mmap mmap
+#define v4l2_munmap munmap
+#endif
static const int desired_video_buffers = 256;
{
struct v4l2_capability cap;
int fd;
+#if CONFIG_LIBV4L2
+ int fd_libv4l;
+#endif
int res, err;
int flags = O_RDWR;
if (ctx->flags & AVFMT_FLAG_NONBLOCK) {
flags |= O_NONBLOCK;
}
- fd = open(ctx->filename, flags, 0);
+ fd = v4l2_open(ctx->filename, flags, 0);
if (fd < 0) {
av_log(ctx, AV_LOG_ERROR, "Cannot open video device %s : %s\n",
ctx->filename, strerror(errno));
return AVERROR(errno);
}
+#if CONFIG_LIBV4L2
+ fd_libv4l = v4l2_fd_open(fd, 0);
+ if (fd < 0) {
+ err = AVERROR(errno);
+ av_log(ctx, AV_LOG_ERROR, "Cannot open video device with libv4l neither %s : %s\n",
+ ctx->filename, strerror(errno));
+ return err;
+ }
+ fd = fd_libv4l;
+#endif
- res = ioctl(fd, VIDIOC_QUERYCAP, &cap);
+ res = v4l2_ioctl(fd, VIDIOC_QUERYCAP, &cap);
// ENOIOCTLCMD definition only availble on __KERNEL__
if (res < 0 && ((err = errno) == 515)) {
av_log(ctx, AV_LOG_ERROR, "QUERYCAP not implemented, probably V4L device but not supporting V4L2\n");
- close(fd);
+ v4l2_close(fd);
return AVERROR(515);
}
if (res < 0) {
av_log(ctx, AV_LOG_ERROR, "ioctl(VIDIOC_QUERYCAP): %s\n",
strerror(errno));
- close(fd);
+ v4l2_close(fd);
return AVERROR(err);
}
if ((cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) == 0) {
av_log(ctx, AV_LOG_ERROR, "Not a video capture device\n");
- close(fd);
+ v4l2_close(fd);
return AVERROR(ENODEV);
}
*capabilities = cap.capabilities;
fmt.fmt.pix.height = *height;
fmt.fmt.pix.pixelformat = pix_fmt;
fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
- res = ioctl(fd, VIDIOC_S_FMT, &fmt);
+ res = v4l2_ioctl(fd, VIDIOC_S_FMT, &fmt);
if ((*width != fmt.fmt.pix.width) || (*height != fmt.fmt.pix.height)) {
av_log(ctx, AV_LOG_INFO, "The V4L2 driver changed the video from %dx%d to %dx%d\n", *width, *height, fmt.fmt.pix.width, fmt.fmt.pix.height);
*width = fmt.fmt.pix.width;
int res;
v4l2_std_id std;
- res = ioctl(fd, VIDIOC_G_STD, &std);
+ res = v4l2_ioctl(fd, VIDIOC_G_STD, &std);
if (res < 0) {
return 0;
}
req.count = desired_video_buffers;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
- res = ioctl(s->fd, VIDIOC_REQBUFS, &req);
+ res = v4l2_ioctl(s->fd, VIDIOC_REQBUFS, &req);
if (res < 0) {
if (errno == EINVAL) {
av_log(ctx, AV_LOG_ERROR, "Device does not support mmap\n");
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
- res = ioctl(s->fd, VIDIOC_QUERYBUF, &buf);
+ res = v4l2_ioctl(s->fd, VIDIOC_QUERYBUF, &buf);
if (res < 0) {
av_log(ctx, AV_LOG_ERROR, "ioctl(VIDIOC_QUERYBUF)\n");
return AVERROR(errno);
return -1;
}
- s->buf_start[i] = mmap (NULL, buf.length,
+ s->buf_start[i] = v4l2_mmap(NULL, buf.length,
PROT_READ | PROT_WRITE, MAP_SHARED, s->fd, buf.m.offset);
if (s->buf_start[i] == MAP_FAILED) {
av_log(ctx, AV_LOG_ERROR, "mmap: %s\n", strerror(errno));
fd = buf_descriptor->fd;
av_free(buf_descriptor);
- res = ioctl(fd, VIDIOC_QBUF, &buf);
+ res = v4l2_ioctl(fd, VIDIOC_QBUF, &buf);
if (res < 0) {
av_log(NULL, AV_LOG_ERROR, "ioctl(VIDIOC_QBUF): %s\n", strerror(errno));
}
buf.memory = V4L2_MEMORY_MMAP;
/* FIXME: Some special treatment might be needed in case of loss of signal... */
- while ((res = ioctl(s->fd, VIDIOC_DQBUF, &buf)) < 0 && (errno == EINTR));
+ while ((res = v4l2_ioctl(s->fd, VIDIOC_DQBUF, &buf)) < 0 && (errno == EINTR));
if (res < 0) {
if (errno == EAGAIN) {
pkt->size = 0;
* allocate a buffer for memcopying into it
*/
av_log(ctx, AV_LOG_ERROR, "Failed to allocate a buffer descriptor\n");
- res = ioctl(s->fd, VIDIOC_QBUF, &buf);
+ res = v4l2_ioctl(s->fd, VIDIOC_QBUF, &buf);
return AVERROR(ENOMEM);
}
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
- res = ioctl(s->fd, VIDIOC_QBUF, &buf);
+ res = v4l2_ioctl(s->fd, VIDIOC_QBUF, &buf);
if (res < 0) {
av_log(ctx, AV_LOG_ERROR, "ioctl(VIDIOC_QBUF): %s\n", strerror(errno));
return AVERROR(errno);
}
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- res = ioctl(s->fd, VIDIOC_STREAMON, &type);
+ res = v4l2_ioctl(s->fd, VIDIOC_STREAMON, &type);
if (res < 0) {
av_log(ctx, AV_LOG_ERROR, "ioctl(VIDIOC_STREAMON): %s\n", strerror(errno));
return AVERROR(errno);
/* We do not check for the result, because we could
* not do anything about it anyway...
*/
- ioctl(s->fd, VIDIOC_STREAMOFF, &type);
+ v4l2_ioctl(s->fd, VIDIOC_STREAMOFF, &type);
for (i = 0; i < s->buffers; i++) {
- munmap(s->buf_start[i], s->buf_len[i]);
+ v4l2_munmap(s->buf_start[i], s->buf_len[i]);
}
av_free(s->buf_start);
av_free(s->buf_len);
struct v4l2_streamparm streamparm = {0};
struct v4l2_fract *tpf = &streamparm.parm.capture.timeperframe;
int i, ret;
- AVRational framerate_q;
+ AVRational framerate_q={0};
streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
/* set tv video input */
input.index = s->channel;
- if (ioctl(s->fd, VIDIOC_ENUMINPUT, &input) < 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_ENUMINPUT, &input) < 0) {
av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl enum input failed:\n");
return AVERROR(EIO);
}
av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set input_id: %d, input: %s\n",
s->channel, input.name);
- if (ioctl(s->fd, VIDIOC_S_INPUT, &input.index) < 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_S_INPUT, &input.index) < 0) {
av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set input(%d) failed\n",
s->channel);
return AVERROR(EIO);
/* set tv standard */
for (i = 0;; i++) {
standard.index = i;
- ret = ioctl(s->fd, VIDIOC_ENUMSTD, &standard);
- if (ret < 0 || !strcasecmp(standard.name, s->standard))
+ ret = v4l2_ioctl(s->fd, VIDIOC_ENUMSTD, &standard);
+ if (ret < 0 || !av_strcasecmp(standard.name, s->standard))
break;
}
if (ret < 0) {
av_log(s1, AV_LOG_DEBUG, "The V4L2 driver set standard: %s, id: %"PRIu64"\n",
s->standard, (uint64_t)standard.id);
- if (ioctl(s->fd, VIDIOC_S_STD, &standard.id) < 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_S_STD, &standard.id) < 0) {
av_log(s1, AV_LOG_ERROR, "The V4L2 driver ioctl set standard(%s) failed\n",
s->standard);
return AVERROR(EIO);
framerate_q.den, framerate_q.num);
tpf->numerator = framerate_q.den;
tpf->denominator = framerate_q.num;
- if (ioctl(s->fd, VIDIOC_S_PARM, &streamparm) != 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_S_PARM, &streamparm) != 0) {
av_log(s1, AV_LOG_ERROR,
"ioctl set time per frame(%d/%d) failed\n",
framerate_q.den, framerate_q.num);
}
} else {
/* if timebase value is not set, read the timebase value from the driver */
- if (ioctl(s->fd, VIDIOC_G_PARM, &streamparm) != 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_G_PARM, &streamparm) != 0) {
av_log(s1, AV_LOG_ERROR, "ioctl(VIDIOC_G_PARM): %s\n", strerror(errno));
return AVERROR(errno);
}
av_log(s1, AV_LOG_VERBOSE, "Querying the device for the current frame size\n");
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if (ioctl(s->fd, VIDIOC_G_FMT, &fmt) < 0) {
+ if (v4l2_ioctl(s->fd, VIDIOC_G_FMT, &fmt) < 0) {
av_log(s1, AV_LOG_ERROR, "ioctl(VIDIOC_G_FMT): %s\n", strerror(errno));
res = AVERROR(errno);
goto out;
if (desired_format == 0) {
av_log(s1, AV_LOG_ERROR, "Cannot find a proper format for "
"codec_id %d, pix_fmt %d.\n", s1->video_codec_id, pix_fmt);
- close(s->fd);
+ v4l2_close(s->fd);
res = AVERROR(EIO);
goto out;
res = read_init(s1);
}
if (res < 0) {
- close(s->fd);
+ v4l2_close(s->fd);
res = AVERROR(EIO);
goto out;
}
mmap_close(s);
}
- close(s->fd);
+ v4l2_close(s->fd);
return 0;
}
projects / ffmpeg / blobdiff