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51 #define OFFSET(x) offsetof(MergePlanesContext, x)
52 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
64 int64_t m =
s->mapping;
69 s->outdesc->nb_components < 2) {
75 for (
i =
s->nb_planes - 1;
i >= 0;
i--) {
76 s->map[
i][0] = m & 0xf;
78 s->map[
i][1] = m & 0xf;
81 if (
s->map[
i][0] > 3 ||
s->map[
i][1] > 3) {
86 s->nb_inputs =
FFMAX(
s->nb_inputs,
s->map[
i][1] + 1);
91 for (
i = 0;
i <
s->nb_inputs;
i++) {
115 if (
desc->comp[0].depth ==
s->outdesc->comp[0].depth &&
122 for (
i = 0;
i <
s->nb_inputs;
i++)
143 for (
i = 0;
i <
s->nb_inputs;
i++) {
153 for (
i = 0;
i <
s->nb_planes;
i++) {
154 const int input =
s->map[
i][1];
155 const int plane =
s->map[
i][0];
159 s->planewidth[
i],
s->planeheight[
i]);
180 outlink->
w =
ctx->inputs[0]->w;
181 outlink->
h =
ctx->inputs[0]->h;
187 s->planewidth[2] =
AV_CEIL_RSHIFT(((
s->outdesc->comp[1].depth > 8) + 1) * outlink->
w,
s->outdesc->log2_chroma_w);
189 s->planewidth[3] = ((
s->outdesc->comp[0].depth > 8) + 1) * outlink->
w;
193 s->planeheight[3] = outlink->
h;
195 for (
i = 0;
i <
s->nb_inputs;
i++) {
204 "does not match output link %s SAR %d:%d\n",
205 i,
ctx->input_pads[
i].name,
206 inlink->sample_aspect_ratio.num,
207 inlink->sample_aspect_ratio.den,
208 ctx->output_pads[0].name,
233 for (
i = 0;
i <
s->nb_planes;
i++) {
234 const int input =
s->map[
i][1];
235 const int plane =
s->map[
i][0];
243 if (
s->outdesc->comp[
i].depth != inputp->
depth[plane]) {
245 "match input %d plane %d depth %d\n",
246 i,
s->outdesc->comp[
i].depth,
252 "match input %d plane %d width %d\n",
259 "match input %d plane %d height %d\n",
260 i,
s->planeheight[
i],
293 .
name =
"mergeplanes",
296 .priv_class = &mergeplanes_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
AVRational time_base
Time base for the incoming frames.
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
static const AVOption mergeplanes_options[]
AVPixelFormat
Pixel format.
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
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
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)
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
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
char * av_asprintf(const char *fmt,...)
This structure describes decoded (raw) audio or video data.
int depth
Number of bits in the component.
#define FILTER_QUERY_FUNC(func)
const char * name
Filter name.
A link between two filters.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
@ EXT_STOP
Completely stop all streams with this one.
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
static int query_formats(AVFilterContext *ctx)
A filter pad used for either input or output.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_CEIL_RSHIFT(a, b)
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define av_assert0(cond)
assert() equivalent, that is always enabled.
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static int config_output(AVFilterLink *outlink)
static const AVFilterPad mergeplanes_outputs[]
Describe the class of an AVClass context structure.
static int activate(AVFilterContext *ctx)
#define fs(width, name, subs,...)
int ff_append_inpad_free_name(AVFilterContext *f, AVFilterPad *p)
enum AVPixelFormat out_fmt
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
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
const AVFilter ff_vf_mergeplanes
AVFilterContext * src
source filter
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
const AVPixFmtDescriptor * outdesc
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some input
#define i(width, name, range_min, range_max)
int w
agreed upon image width
static av_cold int init(AVFilterContext *ctx)
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
const char * name
Pad name.
enum AVMediaType type
AVFilterPad type.
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
AVFILTER_DEFINE_CLASS(mergeplanes)
int h
agreed upon image height
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
static int process_frame(FFFrameSync *fs)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define FILTER_OUTPUTS(array)
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
static av_cold void uninit(AVFilterContext *ctx)