51 uint32_t magic, nframes,
size, subversion, i;
52 uint32_t
width = 0,
height = 0, got_audio = 0, read = 0;
58 if (magic ==
MKBETAG(
'A',
'N',
'I',
'M')) {
63 if (size < 3 * 256 + 6)
74 for (i = 0; i < 256; i++)
78 }
else if (magic ==
MKBETAG(
'S',
'A',
'N',
'M')) {
102 while (!got_audio && ((read + 8) < size)) {
103 uint32_t sig, chunk_size;
112 case MKBETAG(
'W',
'a',
'v',
'e'):
125 case MKBETAG(
'B',
'l',
'1',
'6'):
126 case MKBETAG(
'A',
'N',
'N',
'O'):
165 for (i = 0; i < 256; i++)
206 case MKBETAG(
'F',
'R',
'M',
'E'):
215 case MKBETAG(
'B',
'l',
'1',
'6'):
223 case MKBETAG(
'W',
'a',
'v',
'e'):
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static int smush_read_packet(AVFormatContext *ctx, AVPacket *pkt)
int index
stream index in AVFormatContext
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
AVInputFormat ff_smush_demuxer
unsigned int avio_rb32(AVIOContext *s)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
#define AVERROR_EOF
End of file.
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
AVRational avg_frame_rate
Average framerate.
int flags
A combination of AV_PKT_FLAG values.
AVCodecContext * codec
Codec context associated with this stream.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
unsigned int avio_rb24(AVIOContext *s)
int width
picture width / height.
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
enum AVMediaType codec_type
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static int smush_read_header(AVFormatContext *ctx)
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
BYTE int const BYTE int int int height
This structure contains the data a format has to probe a file.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
int64_t duration
Decoding: duration of the stream, in stream time base.
unsigned int avio_rl16(AVIOContext *s)
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base...
static int smush_read_probe(AVProbeData *p)
int64_t nb_frames
number of frames in this stream if known or 0
#define MKBETAG(a, b, c, d)
int channels
number of audio channels
void * priv_data
Format private data.
int avio_feof(AVIOContext *s)
feof() equivalent for AVIOContext.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
#define MKTAG(a, b, c, d)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.