32 #define MTV_ASUBCHUNK_DATA_SIZE 500
33 #define MTV_HEADER_SIZE 512
34 #define MTV_AUDIO_PADDING_SIZE 12
35 #define AUDIO_SAMPLING_RATE 44100
56 if (*p->
buf !=
'A' || *(p->
buf + 1) !=
'M' || *(p->
buf + 2) !=
'V')
83 unsigned int audio_subsegments;
110 if (audio_subsegments == 0) {
#define MTV_ASUBCHUNK_DATA_SIZE
int64_t pos
byte position in stream, -1 if unknown
unsigned int img_bpp
frame bits per pixel
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int64_t data_offset
offset of the first packet
unsigned int segments
number of 512 byte segments
unsigned int img_colorfmt
frame colorfmt rgb 565/555
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
AVInputFormat ff_mtv_demuxer
enum AVStreamParseType need_parsing
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.
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
static int mtv_read_header(AVFormatContext *s)
unsigned int audio_identifier
'MP3' on all files I have seen
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
unsigned int file_size
filesize, not always right
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
unsigned int full_segment_size
preferred ID for decoding MPEG audio layer 1, 2 or 3
int avio_r8(AVIOContext *s)
AVCodecContext * codec
Codec context associated with this stream.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
int bit_rate
the average bitrate
int width
picture width / height.
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define MTV_AUDIO_PADDING_SIZE
static int read_header(FFV1Context *f)
#define AVERROR_PATCHWELCOME
Not yet implemented in Libav, patches welcome.
enum AVMediaType codec_type
char * av_strdup(const char *s)
Duplicate the string s.
AVIOContext * pb
I/O context.
unsigned int img_segment_size
size of image segment
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
This structure contains the data a format has to probe a file.
static int mtv_probe(AVProbeData *p)
unsigned int avio_rl16(AVIOContext *s)
unsigned int audio_br
bitrate of audio channel (mp3)
#define AUDIO_SAMPLING_RATE
void * priv_data
Format private data.
unsigned int avio_rl24(AVIOContext *s)
static int mtv_read_packet(AVFormatContext *s, AVPacket *pkt)
This structure stores compressed data.