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54 #define CFA_TLGRAY 0x80000000U
55 #define CFA_TRGRAY 0x40000000U
56 #define CFA_BLGRAY 0x20000000U
57 #define CFA_BRGRAY 0x10000000U
62 if (p->
buf[0] ==
'C' && p->
buf[1] ==
'I' &&
76 if (
value || allow_zero) {
84 if (
value != 0 || allow_zero) {
96 unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA;
137 if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) {
163 if (length < 0x163C) {
202 if (compression ==
CC_RGB) {
203 if (biBitCount == 8) {
205 }
else if (biBitCount == 16) {
207 }
else if (biBitCount == 24) {
209 }
else if (biBitCount == 48) {
215 }
else if (compression ==
CC_UNINT) {
216 switch (CFA & 0xFFFFFF) {
218 if (biBitCount == 8) {
220 }
else if (biBitCount == 16) {
228 if (biBitCount == 8) {
230 }
else if (biBitCount == 16) {
252 #define DESCRIPTION_SIZE 4096
273 avio_seek(pb, offImageOffsets, SEEK_SET);
321 cine->
pts = timestamp;
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
@ AV_PIX_FMT_BAYER_GBRG16LE
bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian
@ AV_PIX_FMT_BGR48LE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as lit...
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.
#define AVERROR_EOF
End of file.
#define MKTAG(a, b, c, d)
AVStream ** streams
A list of all streams in the file.
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
static int cine_read_header(AVFormatContext *avctx)
AVInputFormat ff_cine_demuxer
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
int64_t duration
Decoding: duration of the stream, in stream time base.
unsigned int avio_rl16(AVIOContext *s)
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero)
@ AV_PIX_FMT_BAYER_RGGB16LE
bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
AVCodecParameters * codecpar
Codec parameters associated with this stream.
static int read_header(FFV1Context *f)
@ CC_UNINT
Uninterpolated color image (CFA field indicates color ordering)
AVIOContext * pb
I/O context.
This structure contains the data a format has to probe a file.
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static int cine_read_probe(const AVProbeData *p)
int extradata_size
Size of the extradata content in bytes.
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen)
Read a string from pb into buf.
int flags
A combination of AV_PKT_FLAG values.
#define i(width, name, range_min, range_max)
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
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 default value
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
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
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set that converts the value to a string and stores it.
char * av_strdup(const char *s)
Duplicate a string.
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
#define avpriv_request_sample(...)
static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
This structure stores compressed data.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
uint64_t avio_rl64(AVIOContext *s)
#define flags(name, subs,...)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
void * priv_data
Format private data.
static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.