43 #define OFFSET(x) offsetof(PPFilterContext, x) 44 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 67 char *res,
int res_len,
int flags)
71 if (!strcmp(cmd,
"quality")) {
128 const int aligned_w =
FFALIGN(outlink->
w, 8);
129 const int aligned_h =
FFALIGN(outlink->
h, 8);
132 int8_t *qp_table =
NULL;
154 aligned_w, outlink->
h,
205 .priv_class = &pp_class,
static av_cold void pp_uninit(AVFilterContext *ctx)
This structure describes decoded (raw) audio or video data.
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static av_cold int init(AVCodecContext *avctx)
av_cold void pp_free_context(void *vc)
int h
agreed upon image height
pp_mode * pp_get_mode_by_name_and_quality(const char *name, int quality)
Return a pp_mode or NULL if an error occurred.
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
av_cold pp_context * pp_get_context(int width, int height, int cpuCaps)
#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.
static const AVFilterPad pp_outputs[]
#define av_assert0(cond)
assert() equivalent, that is always enabled.
static const AVOption pp_options[]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
void pp_postprocess(const uint8_t *src[3], const int srcStride[3], uint8_t *dst[3], const int dstStride[3], int width, int height, const int8_t *QP_store, int QPStride, pp_mode *vm, void *vc, int pict_type)
static av_cold int uninit(AVCodecContext *avctx)
static av_cold int pp_init(AVFilterContext *ctx)
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
A filter pad used for either input or output.
A link between two filters.
int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, int *qscale_type)
Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 macroblock, stored in raster order - from AVVideoEncParams side data.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
void * priv
private data for use by the filter
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
enum AVPictureType pict_type
Picture type of the frame.
#define PP_PICT_TYPE_QP2
MPEG2 style QScale.
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
void pp_free_mode(pp_mode *mode)
static const AVFilterPad pp_inputs[]
static const AVFilterPad outputs[]
int format
agreed upon media format
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
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.
static int pp_filter_frame(AVFilterLink *inlink, AVFrame *inbuf)
const char * name
Filter name.
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat pix_fmts[]
#define flags(name, subs,...)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
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
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static int query_formats(AVFilterContext *ctx)
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
AVFilterContext * dst
dest filter
static int pp_query_formats(AVFilterContext *ctx)
static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
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
pp_mode * modes[PP_QUALITY_MAX+1]
#define AVERROR_EXTERNAL
Generic error in an external library.
AVPixelFormat
Pixel format.
static int pp_config_props(AVFilterLink *inlink)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
AVFILTER_DEFINE_CLASS(pp)