50 #if FF_API_ERROR_FRAME 125 .priv_class = &swapuv_class,
int plane
Which of the 4 planes contains the component.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
static int query_formats(AVFilterContext *ctx)
Main libavfilter public API header.
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
static int is_planar_yuv(const AVPixFmtDescriptor *desc)
static int filter_frame(AVFilterLink *link, AVFrame *inpicref)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
const char * name
Pad name.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
attribute_deprecated uint64_t error[AV_NUM_DATA_POINTERS]
static const AVOption swapuv_options[]
A filter pad used for either input or output.
A link between two filters.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Libavutil version macros.
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
uint8_t nb_components
The number of components each pixel has, (1-4)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
static void do_swap(AVFrame *frame)
static const AVFilterPad outputs[]
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Describe the class of an AVClass context structure.
const char * name
Filter name.
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 link
AVFilterLink ** outputs
array of pointers to output links
int shift
Number of least significant bits that must be shifted away to get the value.
int offset
Number of elements before the component of the first pixel.
#define flags(name, subs,...)
static AVFrame * get_video_buffer(AVFilterLink *link, int w, int h)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
A reference to a data buffer.
#define FF_DISABLE_DEPRECATION_WARNINGS
AVFILTER_DEFINE_CLASS(swapuv)
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
#define FF_ENABLE_DEPRECATION_WARNINGS
AVFilterContext * dst
dest filter
#define FFSWAP(type, a, b)
static const AVFilterPad swapuv_inputs[]
static const AVFilterPad swapuv_outputs[]
int depth
Number of bits in the component.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.