28 #define HEADER_SIZE 4096 29 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) 42 key = data ^ 0x52656453;
63 int i, coef_off,
ret = 0;
75 key = data ^ 0x52656453;
97 st->
duration = bytestream2_get_be32u(&gbc) * 14;
100 par->
channels = bytestream2_get_byteu(&gbc);
105 coef_off = 0x54 + par->
channels * 8;
106 if (bytestream2_get_byteu(&gbc))
109 if (coef_off + par->
channels * (32 + 14) > HEADER_SIZE) {
119 for (i = 0; i < par->
channels; i++) {
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
ptrdiff_t const GLvoid * data
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
static int redspark_probe(const AVProbeData *p)
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
This struct describes the properties of an encoded stream.
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
unsigned int avio_rb32(AVIOContext *s)
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
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
AVStream ** streams
A list of all streams in the file.
static int redspark_read_header(AVFormatContext *s)
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
#define AVERROR_EOF
End of file.
static const uint8_t header[24]
#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. ...
enum AVMediaType codec_type
General type of the encoded data.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
AVIOContext * pb
I/O context.
This structure contains the data a format has to probe a file.
AVInputFormat ff_redspark_demuxer
static int redspark_read_packet(AVFormatContext *s, AVPacket *pkt)
int64_t duration
Decoding: duration of the stream, in stream time base.
int sample_rate
Audio only.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_RB64
void * priv_data
Format private data.
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
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
This structure stores compressed data.