61 #define D(name) case VA_FILTER_SCALING_ ## name: return #name 109 VAProcPipelineParameterBuffer
params;
142 input_frame, output_frame);
146 params.filter_flags |= ctx->
mode;
186 #define STRING_OPTION(var_name, func_name, default_value) do { \ 187 if (ctx->var_name ## _string) { \ 188 int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \ 190 av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \ 191 return AVERROR(EINVAL); \ 193 ctx->var_name = var; \ 195 ctx->var_name = default_value; \ 207 #define OFFSET(x) offsetof(ScaleVAAPIContext, x) 208 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM) 210 {
"w",
"Output video width",
212 {
"h",
"Output video height",
214 {
"format",
"Output video format (software format of hardware frames)",
216 {
"mode",
"Scaling mode",
218 0, VA_FILTER_SCALING_NL_ANAMORPHIC,
FLAGS,
"mode" },
219 {
"default",
"Use the default (depend on the driver) scaling algorithm",
221 {
"fast",
"Use fast scaling algorithm",
223 {
"hq",
"Use high quality scaling algorithm",
225 {
"nl_anamorphic",
"Use nolinear anamorphic scaling algorithm",
229 {
"out_color_matrix",
"Output colour matrix coefficient set",
231 {
"out_range",
"Output colour range",
234 {
"full",
"Full range",
236 {
"limited",
"Limited range",
238 {
"jpeg",
"Full range",
240 {
"mpeg",
"Limited range",
242 {
"tv",
"Limited range",
244 {
"pc",
"Full range",
247 {
"out_color_primaries",
"Output colour primaries",
250 {
"out_color_transfer",
"Output colour transfer characteristics",
253 {
"out_chroma_location",
"Output chroma sample location",
287 .
name =
"scale_vaapi",
293 .
inputs = scale_vaapi_inputs,
294 .
outputs = scale_vaapi_outputs,
295 .priv_class = &scale_vaapi_class,
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
This structure describes decoded (raw) audio or video data.
char * output_format_string
int force_original_aspect_ratio
int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
Main libavfilter public API header.
Memory handling functions.
int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
static av_cold int init(AVCodecContext *avctx)
int h
agreed upon image height
AVFILTER_DEFINE_CLASS(scale_vaapi)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
AVColorTransferCharacteristic
Color Transfer Characteristic.
const char * name
Pad name.
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static av_cold int uninit(AVCodecContext *avctx)
AVFilter ff_vf_scale_vaapi
AVColorSpace
YUV colorspace type.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
AVColorPrimaries
Chromaticity coordinates of the source primaries.
static const AVOption scale_vaapi_options[]
A filter pad used for either input or output.
A link between two filters.
static av_cold int scale_vaapi_init(AVFilterContext *avctx)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int ff_scale_eval_dimensions(void *log_ctx, const char *w_expr, const char *h_expr, AVFilterLink *inlink, AVFilterLink *outlink, int *ret_w, int *ret_h)
Parse and evaluate string expressions for width and height.
char * colour_primaries_string
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. ...
static int scale_vaapi_config_output(AVFilterLink *outlink)
void * priv
private data for use by the filter
enum AVColorRange color_range
MPEG vs JPEG YUV range.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
enum AVColorSpace colorspace
YUV colorspace type.
simple assert() macros that are a bit more flexible than ISO C assert().
char * colour_transfer_string
static const AVFilterPad scale_vaapi_inputs[]
static const char * scale_vaapi_mode_name(int mode)
int w
agreed upon image width
char * chroma_location_string
void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx)
enum AVColorPrimaries colour_primaries
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
enum AVChromaLocation chroma_location
AVFilterContext * src
source filter
char * colour_matrix_string
static const AVFilterPad outputs[]
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
enum AVColorTransferCharacteristic colour_transfer
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 STRING_OPTION(var_name, func_name, default_value)
static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
Rational number (pair of numerator and denominator).
static const AVFilterPad scale_vaapi_outputs[]
const char * name
Filter name.
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
enum AVChromaLocation chroma_location
AVFilterLink ** outputs
array of pointers to output links
enum AVPixelFormat output_format
int ff_scale_adjust_dimensions(AVFilterLink *inlink, int *ret_w, int *ret_h, int force_original_aspect_ratio, int force_divisible_by)
Transform evaluated width and height obtained from ff_scale_eval_dimensions into actual target width ...
int ff_vaapi_vpp_render_picture(AVFilterContext *avctx, VAProcPipelineParameterBuffer *params, AVFrame *output_frame)
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
Narrow or limited range content.
int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
static int query_formats(AVFilterContext *ctx)
void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx)
AVFilterContext * dst
dest filter
enum AVColorPrimaries color_primaries
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
enum AVColorSpace colour_matrix
AVChromaLocation
Location of chroma samples.
enum AVColorTransferCharacteristic color_trc
int ff_vaapi_vpp_init_params(AVFilterContext *avctx, VAProcPipelineParameterBuffer *params, const AVFrame *input_frame, AVFrame *output_frame)
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
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
static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
mode
Use these values in ebur128_init (or'ed).
void(* pipeline_uninit)(AVFilterContext *avctx)
void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.