32 #include <sys/ioctl.h>
89 "Could not open framebuffer device '%s': %s\n",
94 if (ioctl(fbdev->
fd, FBIOGET_VSCREENINFO, &fbdev->
varinfo) < 0) {
101 if (ioctl(fbdev->
fd, FBIOGET_FSCREENINFO, &fbdev->
fixinfo) < 0) {
104 "FBIOGET_FSCREENINFO: %s\n",
av_err2str(ret));
112 "Framebuffer pixel format not supported.\n");
122 fbdev->
data = mmap(
NULL, fbdev->
fixinfo.smem_len, PROT_READ, MAP_SHARED, fbdev->
fd, 0);
123 if (fbdev->
data == MAP_FAILED) {
139 "w:%d h:%d bpp:%d pixfmt:%s fps:%d/%d bit_rate:%d\n",
154 int64_t curtime, delay;
167 "time_frame:%"PRId64
" curtime:%"PRId64
" delay:%"PRId64
"\n",
175 ts.tv_sec = delay / 1000000;
176 ts.tv_nsec = (delay % 1000000) * 1000;
177 while (nanosleep(&ts, &ts) < 0 && errno == EINTR);
184 if (ioctl(fbdev->
fd, FBIOGET_VSCREENINFO, &fbdev->
varinfo) < 0) {
196 for (i = 0; i < fbdev->
height; i++) {
198 pin += fbdev->
fixinfo.line_length;
220 #define OFFSET(x) offsetof(FBDevContext, x)
221 #define DEC AV_OPT_FLAG_DECODING_PARAM
244 .priv_class = &fbdev_class,
int height
assumed frame resolution
static enum AVPixelFormat pix_fmt
static const AVClass fbdev_class
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
memory handling functions
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
const char * ff_fbdev_default_device()
int frame_linesize
linesize of the output frame, it is assumed to be constant
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
int frame_size
size in bytes of a grabbed frame
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
struct fb_var_screeninfo varinfo
variable info;
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
int avpriv_open(const char *filename, int flags,...)
A wrapper for open() setting O_CLOEXEC.
int64_t time_frame
time for the next frame to output (in 1/1000000 units)
static double av_q2d(AVRational a)
Convert rational to double.
int flags
Flags modifying the (de)muxer behaviour.
static av_cold int read_close(AVFormatContext *ctx)
Main libavdevice API header.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static int fbdev_read_packet(AVFormatContext *avctx, AVPacket *pkt)
static av_cold int fbdev_read_close(AVFormatContext *avctx)
struct fb_fix_screeninfo fixinfo
fixed info;
AVCodecContext * codec
Codec context associated with this stream.
common internal API header
int bit_rate
the average bitrate
char filename[1024]
input or output filename
int width
picture width / height.
static const AVOption options[]
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
AVRational framerate_q
framerate
static int read_header(FFV1Context *f)
int64_t av_gettime(void)
Get the current time in microseconds.
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
#define AV_LOG_INFO
Standard information.
enum AVMediaType codec_type
AVInputFormat ff_fbdev_demuxer
int ff_fbdev_get_device_list(AVDeviceInfoList *device_list)
static int fbdev_get_device_list(AVFormatContext *s, AVDeviceInfoList *device_list)
Describe the class of an AVClass context structure.
rational number numerator/denominator
offset must point to AVRational
static int get_device_list(AVOpenCLDeviceList *device_list)
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
enum AVPixelFormat ff_get_pixfmt_from_fb_varinfo(struct fb_var_screeninfo *varinfo)
static av_cold int fbdev_read_header(AVFormatContext *avctx)
void * priv_data
Format private data.
uint8_t * data
framebuffer data
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
AVPixelFormat
Pixel format.
This structure stores compressed data.
int fd
framebuffer device file descriptor
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.