Go to the documentation of this file.
58 #define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))
70 "Error when parsing the expression '%s' for %s\n",
102 int logo_x,
int logo_y,
int logo_w,
int logo_h,
103 unsigned int band,
int show,
int direct)
106 uint64_t interp, weightl, weightr, weightt, weightb,
weight;
109 uint8_t *topleft, *botleft, *topright;
110 unsigned int left_sample, right_sample;
111 int xclipl, xclipr, yclipt, yclipb;
112 int logo_x1, logo_x2, logo_y1, logo_y2;
114 xclipl =
FFMAX(-logo_x, 0);
115 xclipr =
FFMAX(logo_x+logo_w-
w, 0);
116 yclipt =
FFMAX(-logo_y, 0);
117 yclipb =
FFMAX(logo_y+logo_h-
h, 0);
119 logo_x1 = logo_x + xclipl;
120 logo_x2 = logo_x + logo_w - xclipr - 1;
121 logo_y1 = logo_y + yclipt;
122 logo_y2 = logo_y + logo_h - yclipb - 1;
124 topleft =
src+logo_y1 * src_linesize+logo_x1;
125 topright =
src+logo_y1 * src_linesize+logo_x2;
126 botleft =
src+logo_y2 * src_linesize+logo_x1;
131 dst += (logo_y1 + 1) * dst_linesize;
132 src += (logo_y1 + 1) * src_linesize;
134 for (y = logo_y1+1; y < logo_y2; y++) {
135 left_sample = topleft[src_linesize*(y-logo_y1)] +
136 topleft[src_linesize*(y-logo_y1-1)] +
137 topleft[src_linesize*(y-logo_y1+1)];
138 right_sample = topright[src_linesize*(y-logo_y1)] +
139 topright[src_linesize*(y-logo_y1-1)] +
140 topright[src_linesize*(y-logo_y1+1)];
143 xdst = dst+logo_x1+1,
144 xsrc =
src+logo_x1+1;
x < logo_x2;
x++, xdst++, xsrc++) {
146 if (show && (y == logo_y1+1 || y == logo_y2-1 ||
147 x == logo_x1+1 ||
x == logo_x2-1)) {
153 weightl = (uint64_t) (logo_x2-
x) * (y-logo_y1) * (logo_y2-y) * sar.
den;
154 weightr = (uint64_t)(
x-logo_x1) * (y-logo_y1) * (logo_y2-y) * sar.
den;
155 weightt = (uint64_t)(
x-logo_x1) * (logo_x2-
x) * (logo_y2-y) * sar.
num;
156 weightb = (uint64_t)(
x-logo_x1) * (logo_x2-
x) * (y-logo_y1) * sar.
num;
159 left_sample * weightl
161 right_sample * weightr
163 (topleft[
x-logo_x1] +
164 topleft[
x-logo_x1-1] +
165 topleft[
x-logo_x1+1]) * weightt
167 (botleft[
x-logo_x1] +
168 botleft[
x-logo_x1-1] +
169 botleft[
x-logo_x1+1]) * weightb;
170 weight = (weightl + weightr + weightt + weightb) * 3
U;
173 if (y >= logo_y+band && y < logo_y+logo_h-band &&
174 x >= logo_x+band &&
x < logo_x+logo_w-band) {
180 dist =
FFMAX(dist, logo_x-
x+band);
181 else if (
x >= logo_x+logo_w-band)
182 dist =
FFMAX(dist,
x-(logo_x+logo_w-1-band));
185 dist =
FFMAX(dist, logo_y-y+band);
186 else if (y >= logo_y+logo_h-band)
187 dist =
FFMAX(dist, y-(logo_y+logo_h-1-band));
189 *xdst = (*xsrc*dist + interp*(band-dist))/band;
206 #define OFFSET(x) offsetof(DelogoContext, x)
207 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
260 #define CHECK_UNSET_OPT(opt) \
261 if (s->opt == -1) { \
262 av_log(s, AV_LOG_ERROR, "Option %s was not set.\n", #opt); \
263 return AVERROR(EINVAL); \
273 s->x,
s->y,
s->w,
s->h,
s->band,
s->show);
288 if (
s->x + (
s->band - 1) < 0 ||
s->x +
s->w - (
s->band*2 - 2) >
inlink->w ||
289 s->y + (
s->band - 1) < 0 ||
s->y +
s->h - (
s->band*2 - 2) >
inlink->h) {
303 int hsub0 =
desc->log2_chroma_w;
304 int vsub0 =
desc->log2_chroma_h;
317 if (
s->x + (
s->band - 1) <= 0 ||
s->x +
s->w - (
s->band*2 - 2) >
inlink->w ||
318 s->y + (
s->band - 1) <= 0 ||
s->y +
s->h - (
s->band*2 - 2) >
inlink->h) {
320 " auto set the area inside of the frame\n");
323 if (
s->x + (
s->band - 1) <= 0)
325 if (
s->y + (
s->band - 1) <= 0)
327 if (
s->x +
s->w - (
s->band*2 - 2) >
inlink->w)
328 s->w =
inlink->w -
s->x - (
s->band*2 - 2);
329 if (
s->y +
s->h - (
s->band*2 - 2) >
inlink->h)
330 s->h =
inlink->h -
s->y - (
s->band*2 - 2);
356 sar =
in->sample_aspect_ratio;
361 for (plane = 0; plane <
desc->nb_components; plane++) {
362 int hsub = plane == 1 || plane == 2 ? hsub0 : 0;
363 int vsub = plane == 1 || plane == 2 ? vsub0 : 0;
366 in ->data[plane],
in ->linesize[plane],
369 sar,
s->x>>
hsub,
s->y>>vsub,
406 .priv_class = &delogo_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define AV_LOG_WARNING
Something somehow does not look correct.
static void direct(const float *in, const FFTComplex *ir, int len, float *out)
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
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
#define CHECK_UNSET_OPT(opt)
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.
double var_values[VAR_VARS_NB]
#define AV_LOG_VERBOSE
Detailed information.
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
const char * name
Filter name.
A link between two filters.
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_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
static const AVFilterPad avfilter_vf_delogo_inputs[]
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
static av_cold int init(AVFilterContext *ctx)
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
A filter pad used for either input or output.
static int config_input(AVFilterLink *inlink)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_CEIL_RSHIFT(a, b)
static const AVFilterPad outputs[]
static enum AVPixelFormat pix_fmts[]
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static void apply_delogo(uint8_t *dst, int dst_linesize, uint8_t *src, int src_linesize, int w, int h, AVRational sar, int logo_x, int logo_y, int logo_w, int logo_h, unsigned int band, int show, int direct)
Apply a simple delogo algorithm to the image in src and put the result in dst.
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.
Rational number (pair of numerator and denominator).
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.
static int weight(int i, int blen, int offset)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
int w
agreed upon image width
const char * name
Pad name.
static av_cold void uninit(AVFilterContext *ctx)
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 ug o o w
int h
agreed upon image height
static const AVOption delogo_options[]
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static const AVFilterPad avfilter_vf_delogo_outputs[]
static int query_formats(AVFilterContext *ctx)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define flags(name, subs,...)
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
static const char *const var_names[]
static int set_expr(AVExpr **pexpr, const char *expr, const char *option, void *log_ctx)
AVFILTER_DEFINE_CLASS(delogo)