Go to the documentation of this file.
49 #define OFFSET(x) offsetof(ExtractPlanesContext, x)
50 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
65 #define EIGHTBIT_FORMATS \
69 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, \
70 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
71 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, \
72 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, \
73 AV_PIX_FMT_YUVJ411P, \
74 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
75 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY8A, \
76 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, \
77 AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, \
78 AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, \
79 AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0, \
80 AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, \
81 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP
83 #define HIGHDEPTH_FORMATS(suf) \
84 AV_PIX_FMT_YA16##suf, AV_PIX_FMT_GRAY16##suf, \
85 AV_PIX_FMT_YUV420P16##suf, AV_PIX_FMT_YUVA420P16##suf, \
86 AV_PIX_FMT_YUV422P16##suf, AV_PIX_FMT_YUVA422P16##suf, \
87 AV_PIX_FMT_YUV444P16##suf, AV_PIX_FMT_YUVA444P16##suf, \
88 AV_PIX_FMT_RGB48##suf, AV_PIX_FMT_BGR48##suf, \
89 AV_PIX_FMT_RGBA64##suf, AV_PIX_FMT_BGRA64##suf, \
90 AV_PIX_FMT_GBRP16##suf, AV_PIX_FMT_GBRAP16##suf, \
91 AV_PIX_FMT_YUV420P10##suf, \
92 AV_PIX_FMT_YUV422P10##suf, \
93 AV_PIX_FMT_YUV444P10##suf, \
94 AV_PIX_FMT_YUV440P10##suf, \
95 AV_PIX_FMT_YUVA420P10##suf, \
96 AV_PIX_FMT_YUVA422P10##suf, \
97 AV_PIX_FMT_YUVA444P10##suf, \
98 AV_PIX_FMT_YUV420P12##suf, \
99 AV_PIX_FMT_YUV422P12##suf, \
100 AV_PIX_FMT_YUV444P12##suf, \
101 AV_PIX_FMT_YUV440P12##suf, \
102 AV_PIX_FMT_YUVA422P12##suf, \
103 AV_PIX_FMT_YUVA444P12##suf, \
104 AV_PIX_FMT_GBRP10##suf, AV_PIX_FMT_GBRAP10##suf, \
105 AV_PIX_FMT_GBRP12##suf, AV_PIX_FMT_GBRAP12##suf, \
106 AV_PIX_FMT_YUV420P9##suf, \
107 AV_PIX_FMT_YUV422P9##suf, \
108 AV_PIX_FMT_YUV444P9##suf, \
109 AV_PIX_FMT_YUVA420P9##suf, \
110 AV_PIX_FMT_YUVA422P9##suf, \
111 AV_PIX_FMT_YUVA444P9##suf, \
112 AV_PIX_FMT_GBRP9##suf, \
113 AV_PIX_FMT_GBRP14##suf, \
114 AV_PIX_FMT_YUV420P14##suf, \
115 AV_PIX_FMT_YUV422P14##suf, \
116 AV_PIX_FMT_YUV444P14##suf
144 int i,
ret, depth = 0,
be = 0;
146 if (!
ctx->inputs[0]->in_formats ||
147 !
ctx->inputs[0]->in_formats->nb_formats) {
151 avff =
ctx->inputs[0]->in_formats;
153 depth =
desc->comp[0].depth;
156 in_pixfmts = in_pixfmts_be;
158 in_pixfmts = in_pixfmts_le;
160 if (!
ctx->inputs[0]->out_formats)
166 if (depth !=
desc->comp[0].depth ||
173 out_pixfmts = out8_pixfmts;
174 else if (!
be && depth == 9)
175 out_pixfmts = out9le_pixfmts;
176 else if (
be && depth == 9)
177 out_pixfmts = out9be_pixfmts;
178 else if (!
be && depth == 10)
179 out_pixfmts = out10le_pixfmts;
180 else if (
be && depth == 10)
181 out_pixfmts = out10be_pixfmts;
182 else if (!
be && depth == 12)
183 out_pixfmts = out12le_pixfmts;
184 else if (
be && depth == 12)
185 out_pixfmts = out12be_pixfmts;
186 else if (!
be && depth == 14)
187 out_pixfmts = out14le_pixfmts;
188 else if (
be && depth == 14)
189 out_pixfmts = out14be_pixfmts;
191 out_pixfmts = out16be_pixfmts;
193 out_pixfmts = out16le_pixfmts;
195 for (
i = 0;
i <
ctx->nb_outputs;
i++)
206 int plane_avail,
ret,
i;
213 if (
s->requested_planes & ~plane_avail) {
220 s->depth =
desc->comp[0].depth >> 3;
223 (
desc->nb_components > 1);
226 for (
i = 0;
i < 4;
i++)
227 s->map[
i] = rgba_map[
s->map[
i]];
256 for (y = 0; y <
height; y++) {
278 int i, eof = 0,
ret = 0;
280 for (
i = 0;
i <
ctx->nb_outputs;
i++) {
282 const int idx =
s->map[
i];
298 outlink->
w, outlink->
h,
304 s->linesize[idx], outlink->
h);
315 if (eof ==
ctx->nb_outputs)
325 int planes = (
s->requested_planes & 0xf) | (
s->requested_planes >> 4);
328 for (
i = 0;
i < 4;
i++) {
338 s->map[
ctx->nb_outputs] =
i;
356 for (
i = 0;
i <
ctx->nb_outputs;
i++)
371 .
name =
"extractplanes",
374 .priv_class = &extractplanes_class,
383 #if CONFIG_ALPHAEXTRACT_FILTER
395 .
name =
"alphaextract",
397 "grayscale image component."),
399 .
init = init_alphaextract,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now. Options ------- Then comes the options array. This is what will define the user accessible options. For example
@ AV_PIX_FMT_GRAY10BE
Y , 10bpp, big-endian.
AVPixelFormat
Pixel format.
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
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 void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
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 AVERROR_EOF
End of file.
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
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,...)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
This structure describes decoded (raw) audio or video data.
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
const char * name
Filter name.
A link between two filters.
@ AV_PIX_FMT_GRAY10LE
Y , 10bpp, little-endian.
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.
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
@ AV_PIX_FMT_GRAY9LE
Y , 9bpp, little-endian.
A filter pad used for either input or output.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
#define AV_CEIL_RSHIFT(a, b)
static const AVFilterPad outputs[]
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
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.
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
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
int(* config_props)(AVFilterLink *link)
Link configuration callback.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
@ AV_PIX_FMT_GRAY12LE
Y , 12bpp, little-endian.
AVFilterPad * srcpad
output pad on the source filter
AVFilterContext * src
source filter
AVFilter ff_vf_alphaextract
static const struct @315 planes[]
#define i(width, name, range_min, range_max)
int w
agreed upon image width
@ AV_PIX_FMT_GRAY9BE
Y , 9bpp, big-endian.
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
const char * name
Pad name.
@ AV_PIX_FMT_GRAY12BE
Y , 12bpp, big-endian.
enum AVMediaType type
AVFilterPad type.
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
int h
agreed upon image height
static int ff_insert_outpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new output pad for the filter.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
int ff_outlink_get_status(AVFilterLink *link)
Get the status on an output link.
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
@ AV_PIX_FMT_GRAY14LE
Y , 14bpp, little-endian.
@ AV_PIX_FMT_GRAY14BE
Y , 14bpp, big-endian.
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
#define flags(name, subs,...)