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56 for (
i = 0;
i < 4;
i++) {
60 if ((
desc->log2_chroma_h ||
desc->log2_chroma_w) &&
61 (
i == 1 ||
i == 2) != (
s->map[
i] == 1 ||
s->map[
i] == 2))
86 for (
i = 0;
i <
s->planes;
i++) {
99 uint8_t *shuffled_data[4] = {
NULL };
100 int shuffled_linesize[4] = { 0 };
103 for (
i = 0;
i <
s->planes;
i++) {
104 shuffled_data[
i] =
frame->data[
s->map[
i]];
105 shuffled_linesize[
i] =
frame->linesize[
s->map[
i]];
107 memcpy(
frame->data, shuffled_data,
sizeof(shuffled_data));
108 memcpy(
frame->linesize, shuffled_linesize,
sizeof(shuffled_linesize));
136 #define OFFSET(x) offsetof(ShufflePlanesContext, x)
137 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
158 .
name =
"shuffleplanes",
161 .priv_class = &shuffleplanes_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
AVFILTER_DEFINE_CLASS(shuffleplanes)
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
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)
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
const char * name
Filter name.
A link between two filters.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
static av_cold int shuffleplanes_config_input(AVFilterLink *inlink)
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
const AVFilter ff_vf_shuffleplanes
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 int query_formats(AVFilterContext *ctx)
#define FILTER_OUTPUTS(array)
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static void copy(const float *p1, float *p2, const int length)
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
#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)
static const AVOption shuffleplanes_options[]
const char * name
Pad name.
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
@ AV_OPT_TYPE_INT
Underlying C type is int.
static const AVFilterPad shuffleplanes_inputs[]
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
const VDPAUPixFmtMap * map
static int shuffleplanes_filter_frame(AVFilterLink *inlink, AVFrame *frame)
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
#define FILTER_QUERY_FUNC(func)
static const struct @458 planes[]