Go to the documentation of this file.
79 case MKTAG(
'P',
'S',
'3',
'_'):
84 if (coding ==
MKTAG(
'D',
'A',
'T',
'4') ||
85 coding ==
MKTAG(
'D',
'A',
'T',
'8')) {
96 case MKTAG(
'W',
'I',
'I',
'_'):
99 if (coding !=
MKTAG(
'D',
'A',
'T',
'4') &&
100 coding !=
MKTAG(
'D',
'A',
'T',
'8')) {
113 case MKTAG(
'X',
'E',
'_',
'_'):
119 case MKTAG(
'P',
'S',
'P',
'_'):
125 case MKTAG(
'P',
'S',
'2',
'_'):
141 case MKTAG(
'G',
'C',
'_',
'_'):
147 case MKTAG(
'P',
'S',
'2',
'_'):
153 case MKTAG(
'X',
'B',
'_',
'_'):
187 .extensions =
"musx",
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
enum AVMediaType codec_type
General type of the encoded data.
This struct describes the properties of an encoded stream.
static int musx_read_packet(AVFormatContext *s, AVPacket *pkt)
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
const AVInputFormat ff_musx_demuxer
unsigned int avio_rb32(AVIOContext *s)
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
#define av_assert0(cond)
assert() equivalent, that is always enabled.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
This structure contains the data a format has to probe a file.
int sample_rate
Audio only.
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define MKBETAG(a, b, c, d)
static int musx_probe(const AVProbeData *p)
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
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
int block_align
Audio only.
static int musx_read_header(AVFormatContext *s)
@ AV_CODEC_ID_ADPCM_IMA_DAT4
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define avpriv_request_sample(...)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
This structure stores compressed data.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define MKTAG(a, b, c, d)