FFmpeg
vf_overlay_qsv.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 /**
20  * @file
21  * A hardware accelerated overlay filter based on Intel Quick Sync Video VPP
22  */
23 
24 #include "libavutil/opt.h"
25 #include "libavutil/common.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavutil/eval.h"
28 #include "libavutil/hwcontext.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/mathematics.h"
33 
34 #include "internal.h"
35 #include "avfilter.h"
36 #include "formats.h"
37 #include "video.h"
38 
39 #include "framesync.h"
40 #include "qsvvpp.h"
41 
42 #define MAIN 0
43 #define OVERLAY 1
44 
45 #define OFFSET(x) offsetof(QSVOverlayContext, x)
46 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
47 
48 enum var_name {
58 };
59 
60 typedef struct QSVOverlayContext {
61  const AVClass *class;
62 
66  mfxExtVPPComposite comp_conf;
68 
71 
73 
74 static const char *const var_names[] = {
75  "main_w", "W", /* input width of the main layer */
76  "main_h", "H", /* input height of the main layer */
77  "overlay_iw", /* input width of the overlay layer */
78  "overlay_ih", /* input height of the overlay layer */
79  "overlay_x", "x", /* x position of the overlay layer inside of main */
80  "overlay_y", "y", /* y position of the overlay layer inside of main */
81  "overlay_w", "w", /* output width of overlay layer */
82  "overlay_h", "h", /* output height of overlay layer */
83  NULL
84 };
85 
86 static const AVOption overlay_qsv_options[] = {
87  { "x", "Overlay x position", OFFSET(overlay_ox), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
88  { "y", "Overlay y position", OFFSET(overlay_oy), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
89  { "w", "Overlay width", OFFSET(overlay_ow), AV_OPT_TYPE_STRING, { .str="overlay_iw"}, 0, 255, .flags = FLAGS},
90  { "h", "Overlay height", OFFSET(overlay_oh), AV_OPT_TYPE_STRING, { .str="overlay_ih*w/overlay_iw"}, 0, 255, .flags = FLAGS},
91  { "alpha", "Overlay global alpha", OFFSET(overlay_alpha), AV_OPT_TYPE_INT, { .i64 = 255}, 0, 255, .flags = FLAGS},
92  { "eof_action", "Action to take when encountering EOF from secondary input ",
93  OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT },
94  EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, "eof_action" },
95  { "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, "eof_action" },
96  { "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, "eof_action" },
97  { "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, "eof_action" },
98  { "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
99  { "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
100  { NULL }
101 };
102 
104 
106 {
107  QSVOverlayContext *vpp = ctx->priv;
108  double *var_values = vpp->var_values;
109  int ret = 0;
110  AVExpr *ox_expr = NULL, *oy_expr = NULL;
111  AVExpr *ow_expr = NULL, *oh_expr = NULL;
112 
113 #define PASS_EXPR(e, s) {\
114  ret = av_expr_parse(&e, s, var_names, NULL, NULL, NULL, NULL, 0, ctx); \
115  if (ret < 0) {\
116  av_log(ctx, AV_LOG_ERROR, "Error when passing '%s'.\n", s);\
117  goto release;\
118  }\
119 }
120  PASS_EXPR(ox_expr, vpp->overlay_ox);
121  PASS_EXPR(oy_expr, vpp->overlay_oy);
122  PASS_EXPR(ow_expr, vpp->overlay_ow);
123  PASS_EXPR(oh_expr, vpp->overlay_oh);
124 #undef PASS_EXPR
125 
126  var_values[VAR_OVERLAY_W] =
127  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
128  var_values[VAR_OVERLAY_H] =
129  var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
130 
131  /* calc again in case ow is relative to oh */
132  var_values[VAR_OVERLAY_W] =
133  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
134 
135  var_values[VAR_OVERLAY_X] =
136  var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
137  var_values[VAR_OVERLAY_Y] =
138  var_values[VAR_OY] = av_expr_eval(oy_expr, var_values, NULL);
139 
140  /* calc again in case ox is relative to oy */
141  var_values[VAR_OVERLAY_X] =
142  var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
143 
144  /* calc overlay_w and overlay_h again incase relative to ox,oy */
145  var_values[VAR_OVERLAY_W] =
146  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
147  var_values[VAR_OVERLAY_H] =
148  var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
149  var_values[VAR_OVERLAY_W] =
150  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
151 
152 release:
153  av_expr_free(ox_expr);
154  av_expr_free(oy_expr);
155  av_expr_free(ow_expr);
156  av_expr_free(oh_expr);
157 
158  return ret;
159 }
160 
162 {
164  const AVPixFmtDescriptor *desc;
165  AVHWFramesContext *fctx;
166 
167  if (link->format == AV_PIX_FMT_QSV) {
169  pix_fmt = fctx->sw_format;
170  }
171 
173  if (!desc)
174  return 0;
175 
176  return !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
177 }
178 
180 {
181  AVFilterContext *ctx = inlink->dst;
182  QSVOverlayContext *vpp = ctx->priv;
183  mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[0];
184 
185  av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
186  av_get_pix_fmt_name(inlink->format));
187 
188  vpp->var_values[VAR_MAIN_iW] =
189  vpp->var_values[VAR_MW] = inlink->w;
190  vpp->var_values[VAR_MAIN_iH] =
191  vpp->var_values[VAR_MH] = inlink->h;
192 
193  st->DstX = 0;
194  st->DstY = 0;
195  st->DstW = inlink->w;
196  st->DstH = inlink->h;
197  st->GlobalAlphaEnable = 0;
198  st->PixelAlphaEnable = 0;
199 
200  return 0;
201 }
202 
204 {
205  AVFilterContext *ctx = inlink->dst;
206  QSVOverlayContext *vpp = ctx->priv;
207  mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[1];
208  int ret = 0;
209 
210  av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
211  av_get_pix_fmt_name(inlink->format));
212 
213  vpp->var_values[VAR_OVERLAY_iW] = inlink->w;
214  vpp->var_values[VAR_OVERLAY_iH] = inlink->h;
215 
216  ret = eval_expr(ctx);
217  if (ret < 0)
218  return ret;
219 
220  st->DstX = vpp->var_values[VAR_OX];
221  st->DstY = vpp->var_values[VAR_OY];
222  st->DstW = vpp->var_values[VAR_OW];
223  st->DstH = vpp->var_values[VAR_OH];
224  st->GlobalAlpha = vpp->overlay_alpha;
225  st->GlobalAlphaEnable = (st->GlobalAlpha < 255);
226  st->PixelAlphaEnable = have_alpha_planar(inlink);
227 
228  return 0;
229 }
230 
232 {
233  AVFilterContext *ctx = fs->parent;
234  QSVOverlayContext *s = fs->opaque;
235  AVFrame *frame = NULL;
236  int ret = 0, i;
237 
238  for (i = 0; i < ctx->nb_inputs; i++) {
240  if (ret == 0)
241  ret = ff_qsvvpp_filter_frame(s->qsv, ctx->inputs[i], frame);
242  if (ret < 0 && ret != AVERROR(EAGAIN))
243  break;
244  }
245 
246  return ret;
247 }
248 
250 {
251  QSVOverlayContext *s = ctx->priv;
252  int ret, i;
253 
254  s->fs.on_event = process_frame;
255  s->fs.opaque = s;
256  ret = ff_framesync_init(&s->fs, ctx, ctx->nb_inputs);
257  if (ret < 0)
258  return ret;
259 
260  for (i = 0; i < ctx->nb_inputs; i++) {
261  FFFrameSyncIn *in = &s->fs.in[i];
262  in->before = EXT_STOP;
263  in->after = EXT_INFINITY;
264  in->sync = i ? 1 : 2;
265  in->time_base = ctx->inputs[i]->time_base;
266  }
267 
268  return ff_framesync_configure(&s->fs);
269 }
270 
271 static int config_output(AVFilterLink *outlink)
272 {
273  AVFilterContext *ctx = outlink->src;
274  QSVOverlayContext *vpp = ctx->priv;
275  AVFilterLink *in0 = ctx->inputs[0];
276  AVFilterLink *in1 = ctx->inputs[1];
277  int ret;
278 
279  av_log(ctx, AV_LOG_DEBUG, "Output is of %s.\n", av_get_pix_fmt_name(outlink->format));
280  if ((in0->format == AV_PIX_FMT_QSV && in1->format != AV_PIX_FMT_QSV) ||
281  (in0->format != AV_PIX_FMT_QSV && in1->format == AV_PIX_FMT_QSV)) {
282  av_log(ctx, AV_LOG_ERROR, "Mixing hardware and software pixel formats is not supported.\n");
283  return AVERROR(EINVAL);
284  } else if (in0->format == AV_PIX_FMT_QSV) {
287 
288  if (hw_frame0->device_ctx != hw_frame1->device_ctx) {
289  av_log(ctx, AV_LOG_ERROR, "Inputs with different underlying QSV devices are forbidden.\n");
290  return AVERROR(EINVAL);
291  }
292  }
293 
294  outlink->w = vpp->var_values[VAR_MW];
295  outlink->h = vpp->var_values[VAR_MH];
296  outlink->frame_rate = in0->frame_rate;
297  outlink->time_base = av_inv_q(outlink->frame_rate);
298 
300  if (ret < 0)
301  return ret;
302 
303  return ff_qsvvpp_create(ctx, &vpp->qsv, &vpp->qsv_param);
304 }
305 
306 /*
307  * Callback for qsvvpp
308  * @Note: qsvvpp composition does not generate PTS for result frame.
309  * so we assign the PTS from framesync to the output frame.
310  */
311 
313 {
314  QSVOverlayContext *s = outlink->src->priv;
315  frame->pts = av_rescale_q(s->fs.pts,
316  s->fs.time_base, outlink->time_base);
317  return ff_filter_frame(outlink, frame);
318 }
319 
320 
322 {
323  QSVOverlayContext *vpp = ctx->priv;
324 
325  /* fill composite config */
326  vpp->comp_conf.Header.BufferId = MFX_EXTBUFF_VPP_COMPOSITE;
327  vpp->comp_conf.Header.BufferSz = sizeof(vpp->comp_conf);
328  vpp->comp_conf.NumInputStream = ctx->nb_inputs;
329  vpp->comp_conf.InputStream = av_mallocz_array(ctx->nb_inputs,
330  sizeof(*vpp->comp_conf.InputStream));
331  if (!vpp->comp_conf.InputStream)
332  return AVERROR(ENOMEM);
333 
334  /* initialize QSVVPP params */
336  vpp->qsv_param.ext_buf = av_mallocz(sizeof(*vpp->qsv_param.ext_buf));
337  if (!vpp->qsv_param.ext_buf)
338  return AVERROR(ENOMEM);
339 
340  vpp->qsv_param.ext_buf[0] = (mfxExtBuffer *)&vpp->comp_conf;
341  vpp->qsv_param.num_ext_buf = 1;
343  vpp->qsv_param.num_crop = 0;
344 
345  return 0;
346 }
347 
349 {
350  QSVOverlayContext *vpp = ctx->priv;
351 
352  ff_qsvvpp_free(&vpp->qsv);
353  ff_framesync_uninit(&vpp->fs);
354  av_freep(&vpp->comp_conf.InputStream);
355  av_freep(&vpp->qsv_param.ext_buf);
356 }
357 
359 {
360  QSVOverlayContext *s = ctx->priv;
361  return ff_framesync_activate(&s->fs);
362 }
363 
365 {
366  int i;
367  int ret;
368 
369  static const enum AVPixelFormat main_in_fmts[] = {
376  };
377  static const enum AVPixelFormat out_pix_fmts[] = {
381  };
382 
383  for (i = 0; i < ctx->nb_inputs; i++) {
384  ret = ff_formats_ref(ff_make_format_list(main_in_fmts), &ctx->inputs[i]->outcfg.formats);
385  if (ret < 0)
386  return ret;
387  }
388 
389  ret = ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx->outputs[0]->incfg.formats);
390  if (ret < 0)
391  return ret;
392 
393  return 0;
394 }
395 
396 static const AVFilterPad overlay_qsv_inputs[] = {
397  {
398  .name = "main",
399  .type = AVMEDIA_TYPE_VIDEO,
400  .config_props = config_main_input,
401  },
402  {
403  .name = "overlay",
404  .type = AVMEDIA_TYPE_VIDEO,
405  .config_props = config_overlay_input,
406  },
407  { NULL }
408 };
409 
411  {
412  .name = "default",
413  .type = AVMEDIA_TYPE_VIDEO,
414  .config_props = config_output,
415  },
416  { NULL }
417 };
418 
420  .name = "overlay_qsv",
421  .description = NULL_IF_CONFIG_SMALL("Quick Sync Video overlay."),
422  .priv_size = sizeof(QSVOverlayContext),
424  .preinit = overlay_qsv_framesync_preinit,
427  .activate = activate,
430  .priv_class = &overlay_qsv_class,
431  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
432 };
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_overlay_qsv.c:271
VAR_OVERLAY_W
@ VAR_OVERLAY_W
Definition: vf_overlay_qsv.c:55
QSVOverlayContext::var_values
double var_values[VAR_VARS_NB]
Definition: vf_overlay_qsv.c:67
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:124
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
AVERROR
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
opt.h
VAR_OX
@ VAR_OX
Definition: vf_overlay_qsv.c:53
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
VAR_OVERLAY_X
@ VAR_OVERLAY_X
Definition: vf_overlay_qsv.c:53
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:290
FF_FILTER_FLAG_HWFRAME_AWARE
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
Definition: internal.h:339
QSVVPPParam::out_sw_format
enum AVPixelFormat out_sw_format
Definition: qsvvpp.h:93
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1094
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:92
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(overlay_qsv, QSVOverlayContext, fs)
QSVOverlayContext::overlay_oy
char * overlay_oy
Definition: vf_overlay_qsv.c:69
ff_framesync_get_frame
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
Definition: framesync.c:253
var_names
static const char *const var_names[]
Definition: vf_overlay_qsv.c:74
inlink
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
Definition: filter_design.txt:212
process_frame
static int process_frame(FFFrameSync *fs)
Definition: vf_overlay_qsv.c:231
VAR_OY
@ VAR_OY
Definition: vf_overlay_qsv.c:54
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:324
pixdesc.h
AVOption
AVOption.
Definition: opt.h:248
EOF_ACTION_ENDALL
@ EOF_ACTION_ENDALL
Definition: framesync.h:28
QSVOverlayContext
Definition: vf_overlay_qsv.c:60
av_mallocz_array
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:190
VAR_OVERLAY_iH
@ VAR_OVERLAY_iH
Definition: vf_overlay_qsv.c:52
mathematics.h
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
FLAGS
#define FLAGS
Definition: vf_overlay_qsv.c:46
FFFrameSync
Frame sync structure.
Definition: framesync.h:146
EXT_INFINITY
@ EXT_INFINITY
Extend the frame to infinity.
Definition: framesync.h:75
video.h
OFFSET
#define OFFSET(x)
Definition: vf_overlay_qsv.c:45
config_overlay_input
static int config_overlay_input(AVFilterLink *inlink)
Definition: vf_overlay_qsv.c:203
formats.h
overlay_qsv_options
static const AVOption overlay_qsv_options[]
Definition: vf_overlay_qsv.c:86
EXT_STOP
@ EXT_STOP
Completely stop all streams with this one.
Definition: framesync.h:65
overlay_qsv_init
static int overlay_qsv_init(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:321
activate
static int activate(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:358
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:356
QSVOverlayContext::overlay_oh
char * overlay_oh
Definition: vf_overlay_qsv.c:69
qsvvpp.h
VAR_OW
@ VAR_OW
Definition: vf_overlay_qsv.c:55
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:81
VAR_OVERLAY_Y
@ VAR_OVERLAY_Y
Definition: vf_overlay_qsv.c:54
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:336
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
avassert.h
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
QSVOverlayContext::overlay_pixel_alpha
uint16_t overlay_pixel_alpha
Definition: vf_overlay_qsv.c:70
av_cold
#define av_cold
Definition: attributes.h:90
inputs
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
Definition: filter_design.txt:243
var_name
var_name
Definition: setts_bsf.c:50
s
#define s(width, name)
Definition: cbs_vp9.c:257
ff_qsvvpp_create
int ff_qsvvpp_create(AVFilterContext *avctx, QSVVPPContext **vpp, QSVVPPParam *param)
Definition: qsvvpp.c:650
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:466
VAR_OVERLAY_iW
@ VAR_OVERLAY_iW
Definition: vf_overlay_qsv.c:51
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:179
ctx
AVFormatContext * ctx
Definition: movenc.c:48
av_expr_eval
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition: eval.c:766
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demuxing_decoding.c:40
AVExpr
Definition: eval.c:157
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
EOF_ACTION_PASS
@ EOF_ACTION_PASS
Definition: framesync.h:29
link
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 link
Definition: filter_design.txt:23
QSVVPPContext
Definition: qsvvpp.h:50
init_framesync
static int init_framesync(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:249
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
NULL
#define NULL
Definition: coverity.c:32
AVHWFramesContext::sw_format
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
QSVVPPParam::num_crop
int num_crop
Definition: qsvvpp.h:96
QSVVPPParam
Definition: qsvvpp.h:84
QSVOverlayContext::overlay_alpha
uint16_t overlay_alpha
Definition: vf_overlay_qsv.c:70
AV_PIX_FMT_YUYV422
@ AV_PIX_FMT_YUYV422
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
VAR_OH
@ VAR_OH
Definition: vf_overlay_qsv.c:56
VAR_MAIN_iW
@ VAR_MAIN_iW
Definition: vf_overlay_qsv.c:49
eval_expr
static int eval_expr(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:105
AV_PIX_FMT_QSV
@ AV_PIX_FMT_QSV
HW acceleration through QSV, data[3] contains a pointer to the mfxFrameSurface1 structure.
Definition: pixfmt.h:222
ff_qsvvpp_free
int ff_qsvvpp_free(QSVVPPContext **vpp)
Definition: qsvvpp.c:768
QSVOverlayContext::overlay_ow
char * overlay_ow
Definition: vf_overlay_qsv.c:69
ff_vf_overlay_qsv
AVFilter ff_vf_overlay_qsv
Definition: vf_overlay_qsv.c:419
eval.h
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
overlay_qsv_inputs
static const AVFilterPad overlay_qsv_inputs[]
Definition: vf_overlay_qsv.c:396
overlay_qsv_outputs
static const AVFilterPad overlay_qsv_outputs[]
Definition: vf_overlay_qsv.c:410
config_main_input
static int config_main_input(AVFilterLink *inlink)
Definition: vf_overlay_qsv.c:179
QSVOverlayContext::comp_conf
mfxExtVPPComposite comp_conf
Definition: vf_overlay_qsv.c:66
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:397
have_alpha_planar
static int have_alpha_planar(AVFilterLink *link)
Definition: vf_overlay_qsv.c:161
VAR_VARS_NB
@ VAR_VARS_NB
Definition: vf_overlay_qsv.c:57
AV_PIX_FMT_RGB32
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:372
QSVOverlayContext::overlay_ox
char * overlay_ox
Definition: vf_overlay_qsv.c:69
overlay_qsv_query_formats
static int overlay_qsv_query_formats(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:364
internal.h
QSVOverlayContext::fs
FFFrameSync fs
Definition: vf_overlay_qsv.c:63
in
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
Definition: audio_convert.c:326
i
int i
Definition: input.c:407
filter_callback
static int filter_callback(AVFilterLink *outlink, AVFrame *frame)
Definition: vf_overlay_qsv.c:312
overlay_alpha
static const char overlay_alpha[]
Definition: vf_overlay_vulkan.c:63
common.h
out_pix_fmts
static enum AVPixelFormat out_pix_fmts[]
Definition: vf_ciescope.c:133
QSVVPPParam::num_ext_buf
int num_ext_buf
Definition: qsvvpp.h:89
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
QSVVPPParam::filter_frame
int(* filter_frame)(AVFilterLink *outlink, AVFrame *frame)
Definition: qsvvpp.h:86
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
PASS_EXPR
#define PASS_EXPR(e, s)
AVFilter
Filter definition.
Definition: avfilter.h:145
AVHWFramesContext
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_NV12
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
frame
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
Definition: filter_design.txt:264
AVHWFramesContext::device_ctx
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:149
VAR_MH
@ VAR_MH
Definition: vf_overlay_qsv.c:50
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:84
EOF_ACTION_REPEAT
@ EOF_ACTION_REPEAT
Definition: framesync.h:27
VAR_MW
@ VAR_MW
Definition: vf_overlay_qsv.c:49
AVFrame::hw_frames_ctx
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame.
Definition: frame.h:663
framesync.h
ff_qsvvpp_filter_frame
int ff_qsvvpp_filter_frame(QSVVPPContext *s, AVFilterLink *inlink, AVFrame *picref)
Definition: qsvvpp.c:793
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
FF_INLINK_IDX
#define FF_INLINK_IDX(link)
Find the index of a link.
Definition: internal.h:302
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AVFilterContext
An instance of a filter.
Definition: avfilter.h:341
QSVOverlayContext::qsv
QSVVPPContext * qsv
Definition: vf_overlay_qsv.c:64
desc
const char * desc
Definition: libsvtav1.c:79
VAR_OVERLAY_H
@ VAR_OVERLAY_H
Definition: vf_overlay_qsv.c:56
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: aeval.c:244
imgutils.h
hwcontext.h
VAR_MAIN_iH
@ VAR_MAIN_iH
Definition: vf_overlay_qsv.c:50
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
QSVOverlayContext::qsv_param
QSVVPPParam qsv_param
Definition: vf_overlay_qsv.c:65
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
ff_framesync_activate
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
Definition: framesync.c:341
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
overlay_qsv_uninit
static av_cold void overlay_qsv_uninit(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:348
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
QSVVPPParam::ext_buf
mfxExtBuffer ** ext_buf
Definition: qsvvpp.h:90
av_get_pix_fmt_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.
Definition: pixdesc.c:2489