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consistent using fourcc

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This commit is contained in:
Devaev Maxim
2019-03-04 15:06:29 +03:00
parent 2bb1f71c9c
commit 3ae8818b3d
1 changed files with 20 additions and 12 deletions
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32
src/device.c
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@@ -70,8 +70,9 @@ static int _device_open_mmap(struct device_t *dev);
static int _device_open_queue_buffers(struct device_t *dev);
static int _device_apply_resolution(struct device_t *dev, unsigned width, unsigned height);
static const char *_format_to_string_auto(char *buf, size_t size, unsigned format);
static const char *_format_to_string_null(unsigned format);
static const char *_format_to_string_fourcc(char *buf, size_t size, unsigned format);
static const char *_format_to_string_nullable(unsigned format);
static const char *_format_to_string_supported(unsigned format);
static const char *_standard_to_string(v4l2_std_id standard);
@@ -289,7 +290,6 @@ static int _device_apply_dv_timings(struct device_t *dev) {
static int _device_open_format(struct device_t *dev) {
struct v4l2_format fmt;
char format_str[8];
MEMSET_ZERO(fmt);
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
@@ -302,8 +302,8 @@ static int _device_open_format(struct device_t *dev) {
LOG_DEBUG("Calling ioctl(VIDIOC_S_FMT) ...");
if (xioctl(dev->run->fd, VIDIOC_S_FMT, &fmt) < 0) {
LOG_PERROR(
"Unable to set format=%s; resolution=%ux%u",
_format_to_string_auto(format_str, 8, dev->format),
"Unable to set pixelformat=%s; resolution=%ux%u",
_format_to_string_supported(dev->format),
dev->run->width,
dev->run->height
);
@@ -326,24 +326,27 @@ static int _device_open_format(struct device_t *dev) {
LOG_ERROR(
"Could not obtain the requested pixelformat=%s; driver gave us %s",
_format_to_string_auto(format_str, 8, dev->format),
_format_to_string_auto(format_obtained_str, 8, fmt.fmt.pix.pixelformat)
_format_to_string_supported(dev->format),
_format_to_string_supported(fmt.fmt.pix.pixelformat)
);
if ((format_str_nullable = (char *)_format_to_string_null(fmt.fmt.pix.pixelformat)) != NULL) {
if ((format_str_nullable = (char *)_format_to_string_nullable(fmt.fmt.pix.pixelformat)) != NULL) {
LOG_INFO(
"Falling back to %s mode (consider using '--format=%s' option)",
format_str_nullable,
format_str_nullable
);
} else {
LOG_ERROR("Unsupported pixel format");
LOG_ERROR(
"Unsupported pixelformat=%s (fourcc)",
_format_to_string_fourcc(format_obtained_str, 8, fmt.fmt.pix.pixelformat)
);
return -1;
}
}
dev->run->format = fmt.fmt.pix.pixelformat;
LOG_INFO("Using pixelformat: %s", _format_to_string_auto(format_str, 8, dev->run->format));
LOG_INFO("Using pixelformat: %s", _format_to_string_supported(dev->run->format));
return 0;
}
@@ -442,7 +445,7 @@ static int _device_apply_resolution(struct device_t *dev, unsigned width, unsign
return 0;
}
static const char *_format_to_string_auto(char *buf, size_t size, unsigned format) {
static const char *_format_to_string_fourcc(char *buf, size_t size, unsigned format) {
assert(size >= 8);
buf[0] = format & 0x7F;
buf[1] = (format >> 8) & 0x7F;
@@ -459,7 +462,7 @@ static const char *_format_to_string_auto(char *buf, size_t size, unsigned forma
return buf;
}
static const char *_format_to_string_null(unsigned format) {
static const char *_format_to_string_nullable(unsigned format) {
for (unsigned index = 0; index < ARRAY_LEN(_FORMATS); ++index) {
if (format == _FORMATS[index].format) {
return _FORMATS[index].name;
@@ -468,6 +471,11 @@ static const char *_format_to_string_null(unsigned format) {
return NULL;
}
static const char *_format_to_string_supported(unsigned format) {
const char *format_str = _format_to_string_nullable(format);
return (format_str == NULL ? "unsupported" : format_str);
}
static const char *_standard_to_string(v4l2_std_id standard) {
for (unsigned index = 0; index < ARRAY_LEN(_STANDARDS); ++index) {
if (standard == _STANDARDS[index].standard) {