#include "libavutil/opt.h"
#include "libavformat/avformat.h"
#include "fbdev_common.h"
+#include "avdevice.h"
typedef struct {
AVClass *class; ///< class for private options
return 0;
}
+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 = -1, 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;
+ }
+
+ continue;
+
+ fail_device:
+ if (device) {
+ av_free(device->device_name);
+ av_free(device->device_description);
+ av_freep(&device);
+ }
+ if (fd >= 0) {
+ close(fd);
+ fd = -1;
+ }
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
#define OFFSET(x) offsetof(FBDevContext, x)
#define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
.write_header = fbdev_write_header,
.write_packet = fbdev_write_packet,
.write_trailer = fbdev_write_trailer,
+ .get_device_list = fbdev_get_device_list,
.flags = AVFMT_NOFILE | AVFMT_VARIABLE_FPS | AVFMT_NOTIMESTAMPS,
.priv_class = &fbdev_class,
};