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57 desc->nb_components < 3 ||
58 (
desc->comp[1].depth !=
desc->comp[2].depth))
60 for (
i = 0;
i <
desc->nb_components;
i++) {
61 if (
desc->comp[
i].offset != 0 ||
62 desc->comp[
i].shift != 0 ||
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
static AVFrame * get_video_buffer(AVFilterLink *link, int w, int h)
const char * name
Filter name.
A link between two filters.
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
static const AVFilterPad swapuv_inputs[]
A filter pad used for either input or output.
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
static void do_swap(AVFrame *frame)
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
#define FILTER_OUTPUTS(array)
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
static int query_formats(AVFilterContext *ctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static int is_planar_yuv(const AVPixFmtDescriptor *desc)
const AVFilter ff_vf_swapuv
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
#define i(width, name, range_min, range_max)
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
const char * name
Pad name.
#define FFSWAP(type, a, b)
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 int filter_frame(AVFilterLink *link, AVFrame *inpicref)
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
A reference to a data buffer.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define FILTER_QUERY_FUNC(func)