39 return x == 0x1B || x == 0x0A || x == 0x0D || (x >= 0x20 && x < 0x7f);
68 return (cnt * 99LL / p->
buf_size) * (cnt > 400) *
86 #define GET_EFI_META(name,size) \
88 if (len < 1 || len > size) \
90 if (avio_read(pb, buf, size) == size) { \
92 av_dict_set(&avctx->metadata, name, buf, 0); \
126 st->
duration = (
s->fsize +
s->chars_per_frame - 1) /
s->chars_per_frame;
146 n =
s->chars_per_frame;
152 if (p +
s->chars_per_frame >
s->fsize)
165 #define OFFSET(x) offsetof(TtyDemuxContext, x)
166 #define DEC AV_OPT_FLAG_DECODING_PARAM
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
int64_t avio_size(AVIOContext *s)
Get the filesize.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int avio_r8(AVIOContext *s)
#define flags(name, subs,...)
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
#define AVERROR_EOF
End of file.
const char * av_default_item_name(void *ptr)
Return the context name.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
#define LIBAVUTIL_VERSION_INT
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
int ff_sauce_read(AVFormatContext *avctx, uint64_t *fsize, int *got_width, int get_height)
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
enum AVMediaType codec_type
General type of the encoded data.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
AVIOContext * pb
I/O context.
void * priv_data
Format private data.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
This structure stores compressed data.
int flags
A combination of AV_PKT_FLAG values.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
int64_t pos
byte position in stream, -1 if unknown
This structure contains the data a format has to probe a file.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Rational number (pair of numerator and denominator).
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int64_t duration
Decoding: duration of the stream, in stream time base.
AVRational avg_frame_rate
Average framerate.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
int height
Set by a private option.
uint64_t fsize
file size less metadata buffer
AVRational framerate
Set by a private option.
static int read_header(AVFormatContext *avctx)
static const AVOption options[]
#define GET_EFI_META(name, size)
static const AVClass tty_demuxer_class
static int read_packet(AVFormatContext *avctx, AVPacket *pkt)
static int read_probe(const AVProbeData *p)
static const char tty_extensions[31]
static int isansicode(int x)
static int efi_read(AVFormatContext *avctx, uint64_t start_pos)
Parse EFI header.
AVInputFormat ff_tty_demuxer