65 if (pkt->
size < skip + 4)
68 flags |= pkt->
data[skip + 4 + 4];
159 if ((ret =
flush(s, 0, pkt->
pts)) < 0)
193 #define OFFSET(x) offsetof(WebpContext, x) 194 #define ENC AV_OPT_FLAG_ENCODING_PARAM 196 {
"loop",
"Number of times to loop the output: 0 - infinite loop",
OFFSET(
loop),
210 .extensions =
"webp",
216 .priv_class = &webp_muxer_class,
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
void avio_wl16(AVIOContext *s, unsigned int val)
#define LIBAVUTIL_VERSION_INT
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
const char * av_default_item_name(void *ptr)
Return the context name.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
void avio_wl32(AVIOContext *s, unsigned int val)
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
AVStream ** streams
A list of all streams in the file.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static const AVOption options[]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int using_webp_anim_encoder
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
static int write_trailer(AVFormatContext *s1)
static int webp_write_header(AVFormatContext *s)
static int is_animated_webp_packet(AVPacket *pkt)
static const AVClass webp_muxer_class
AVIOContext * pb
I/O context.
void avio_w8(AVIOContext *s, int b)
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Describe the class of an AVClass context structure.
void avio_wl24(AVIOContext *s, unsigned int val)
static int flush(AVFormatContext *s, int trailer, int64_t pts)
#define flags(name, subs,...)
static int webp_write_packet(AVFormatContext *s, AVPacket *pkt)
AVOutputFormat ff_webp_muxer
void * priv_data
Format private data.
static void write_header(FFV1Context *f)
AVCodecParameters * codecpar
Codec parameters associated with this stream.
static int webp_write_trailer(AVFormatContext *s)
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
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.