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lavd/fbdev_enc: move list device code to fbdev_common 

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
This commit is contained in:
Lukasz Marek 2014-04-28 01:34:18 +02:00
parent 3050e53f2b
commit 279ff8d2f6
3 changed files with 67 additions and 55 deletions
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62
libavdevice/fbdev_common.c
View File

@ -20,9 +20,13 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include "fbdev_common.h"
#include "libavutil/common.h"
#include "avdevice.h"
struct rgb_pixfmt_map_entry {
int bits_per_pixel;
@ -65,3 +69,61 @@ const char* ff_fbdev_default_device()
return dev;
}
int ff_fbdev_get_device_list(AVDeviceInfoList *device_list)
{
struct fb_var_screeninfo varinfo;
struct fb_fix_screeninfo fixinfo;
char device_file[12];
AVDeviceInfo *device = NULL;
int i, fd, ret = 0;
const char *default_device = ff_fbdev_default_device();
if (!device_list)
return AVERROR(EINVAL);
for (i = 0; i <= 31; i++) {
snprintf(device_file, sizeof(device_file), "/dev/fb%d", i);
if ((fd = avpriv_open(device_file, O_RDWR)) < 0)
continue;
if (ioctl(fd, FBIOGET_VSCREENINFO, &varinfo) == -1)
goto fail_device;
if (ioctl(fd, FBIOGET_FSCREENINFO, &fixinfo) == -1)
goto fail_device;
device = av_mallocz(sizeof(AVDeviceInfo));
if (!device) {
ret = AVERROR(ENOMEM);
goto fail_device;
}
device->device_name = av_strdup(device_file);
device->device_description = av_strdup(fixinfo.id);
if (!device->device_name || !device->device_description) {
ret = AVERROR(ENOMEM);
goto fail_device;
}
if ((ret = av_dynarray_add_nofree(&device_list->devices,
&device_list->nb_devices, device)) < 0)
goto fail_device;
if (default_device && !strcmp(device->device_name, default_device)) {
device_list->default_device = device_list->nb_devices - 1;
default_device = NULL;
}
close(fd);
continue;
fail_device:
if (device) {
av_free(device->device_name);
av_free(device->device_description);
av_freep(&device);
}
if (fd >= 0)
close(fd);
if (ret < 0)
return ret;
}
return 0;
}

4
libavdevice/fbdev_common.h
View File

@ -27,8 +27,12 @@
#include <linux/fb.h>
#include "libavutil/pixfmt.h"
struct AVDeviceInfoList;
enum AVPixelFormat ff_get_pixfmt_from_fb_varinfo(struct fb_var_screeninfo *varinfo);
const char* ff_fbdev_default_device(void);
int ff_fbdev_get_device_list(struct AVDeviceInfoList *device_list);
#endif /* AVDEVICE_FBDEV_COMMON_H */

56
libavdevice/fbdev_enc.c
View File

@ -186,61 +186,7 @@ static av_cold int fbdev_write_trailer(AVFormatContext *h)
static int fbdev_get_device_list(AVFormatContext *s, AVDeviceInfoList *device_list)
{
struct fb_var_screeninfo varinfo;
struct fb_fix_screeninfo fixinfo;
char device_file[12];
AVDeviceInfo *device = NULL;
int i, fd, ret = 0;
const char *default_device = ff_fbdev_default_device();
if (!device_list)
return AVERROR(EINVAL);
for (i = 0; i <= 31; i++) {
snprintf(device_file, sizeof(device_file), "/dev/fb%d", i);
if ((fd = avpriv_open(device_file, O_RDWR)) < 0)
continue;
if (ioctl(fd, FBIOGET_VSCREENINFO, &varinfo) == -1)
goto fail_device;
if (ioctl(fd, FBIOGET_FSCREENINFO, &fixinfo) == -1)
goto fail_device;
device = av_mallocz(sizeof(AVDeviceInfo));
if (!device) {
ret = AVERROR(ENOMEM);
goto fail_device;
}
device->device_name = av_strdup(device_file);
device->device_description = av_strdup(fixinfo.id);
if (!device->device_name || !device->device_description) {
ret = AVERROR(ENOMEM);
goto fail_device;
}
if ((ret = av_dynarray_add_nofree(&device_list->devices,
&device_list->nb_devices, device)) < 0)
goto fail_device;
if (default_device && !strcmp(device->device_name, default_device)) {
device_list->default_device = device_list->nb_devices - 1;
default_device = NULL;
}
close(fd);
continue;
fail_device:
if (device) {
av_free(device->device_name);
av_free(device->device_description);
av_freep(&device);
}
if (fd >= 0)
close(fd);
if (ret < 0)
return ret;
}
return 0;
return ff_fbdev_get_device_list(device_list);
}
#define OFFSET(x) offsetof(FBDevContext, x)