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/imgutils.h"
31 #include "libavutil/mathematics.h"
32 
33 #include "internal.h"
34 #include "avfilter.h"
35 #include "formats.h"
36 #include "video.h"
37 
38 #include "framesync.h"
39 #include "qsvvpp.h"
40 
41 #define MAIN 0
42 #define OVERLAY 1
43 
44 #define OFFSET(x) offsetof(QSVOverlayContext, x)
45 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
46 
47 enum var_name {
57 };
58 
59 typedef struct QSVOverlayContext {
61 
64  mfxExtVPPComposite comp_conf;
66 
69 
71 
72 static const char *const var_names[] = {
73  "main_w", "W", /* input width of the main layer */
74  "main_h", "H", /* input height of the main layer */
75  "overlay_iw", /* input width of the overlay layer */
76  "overlay_ih", /* input height of the overlay layer */
77  "overlay_x", "x", /* x position of the overlay layer inside of main */
78  "overlay_y", "y", /* y position of the overlay layer inside of main */
79  "overlay_w", "w", /* output width of overlay layer */
80  "overlay_h", "h", /* output height of overlay layer */
81  NULL
82 };
83 
84 static const AVOption overlay_qsv_options[] = {
85  { "x", "Overlay x position", OFFSET(overlay_ox), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
86  { "y", "Overlay y position", OFFSET(overlay_oy), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
87  { "w", "Overlay width", OFFSET(overlay_ow), AV_OPT_TYPE_STRING, { .str="overlay_iw"}, 0, 255, .flags = FLAGS},
88  { "h", "Overlay height", OFFSET(overlay_oh), AV_OPT_TYPE_STRING, { .str="overlay_ih*w/overlay_iw"}, 0, 255, .flags = FLAGS},
89  { "alpha", "Overlay global alpha", OFFSET(overlay_alpha), AV_OPT_TYPE_INT, { .i64 = 255}, 0, 255, .flags = FLAGS},
90  { "eof_action", "Action to take when encountering EOF from secondary input ",
91  OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT },
92  EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, "eof_action" },
93  { "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, "eof_action" },
94  { "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, "eof_action" },
95  { "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, "eof_action" },
96  { "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
97  { "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
98  { NULL }
99 };
100 
102 
104 {
105  QSVOverlayContext *vpp = ctx->priv;
106  double *var_values = vpp->var_values;
107  int ret = 0;
108  AVExpr *ox_expr = NULL, *oy_expr = NULL;
109  AVExpr *ow_expr = NULL, *oh_expr = NULL;
110 
111 #define PASS_EXPR(e, s) {\
112  ret = av_expr_parse(&e, s, var_names, NULL, NULL, NULL, NULL, 0, ctx); \
113  if (ret < 0) {\
114  av_log(ctx, AV_LOG_ERROR, "Error when passing '%s'.\n", s);\
115  goto release;\
116  }\
117 }
118  PASS_EXPR(ox_expr, vpp->overlay_ox);
119  PASS_EXPR(oy_expr, vpp->overlay_oy);
120  PASS_EXPR(ow_expr, vpp->overlay_ow);
121  PASS_EXPR(oh_expr, vpp->overlay_oh);
122 #undef PASS_EXPR
123 
124  var_values[VAR_OVERLAY_W] =
125  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
126  var_values[VAR_OVERLAY_H] =
127  var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
128 
129  /* calc again in case ow is relative to oh */
130  var_values[VAR_OVERLAY_W] =
131  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
132 
133  var_values[VAR_OVERLAY_X] =
134  var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
135  var_values[VAR_OVERLAY_Y] =
136  var_values[VAR_OY] = av_expr_eval(oy_expr, var_values, NULL);
137 
138  /* calc again in case ox is relative to oy */
139  var_values[VAR_OVERLAY_X] =
140  var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
141 
142  /* calc overlay_w and overlay_h again incase relative to ox,oy */
143  var_values[VAR_OVERLAY_W] =
144  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
145  var_values[VAR_OVERLAY_H] =
146  var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
147  var_values[VAR_OVERLAY_W] =
148  var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
149 
150 release:
151  av_expr_free(ox_expr);
152  av_expr_free(oy_expr);
153  av_expr_free(ow_expr);
154  av_expr_free(oh_expr);
155 
156  return ret;
157 }
158 
160 {
162  const AVPixFmtDescriptor *desc;
163  AVHWFramesContext *fctx;
164 
165  if (link->format == AV_PIX_FMT_QSV) {
167  pix_fmt = fctx->sw_format;
168  }
169 
171  if (!desc)
172  return 0;
173 
174  return !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
175 }
176 
178 {
179  AVFilterContext *ctx = inlink->dst;
180  QSVOverlayContext *vpp = ctx->priv;
181  mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[0];
182 
183  av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
184  av_get_pix_fmt_name(inlink->format));
185 
186  vpp->var_values[VAR_MAIN_iW] =
187  vpp->var_values[VAR_MW] = inlink->w;
188  vpp->var_values[VAR_MAIN_iH] =
189  vpp->var_values[VAR_MH] = inlink->h;
190 
191  st->DstX = 0;
192  st->DstY = 0;
193  st->DstW = inlink->w;
194  st->DstH = inlink->h;
195  st->GlobalAlphaEnable = 0;
196  st->PixelAlphaEnable = 0;
197 
198  return 0;
199 }
200 
202 {
203  AVFilterContext *ctx = inlink->dst;
204  QSVOverlayContext *vpp = ctx->priv;
205  mfxVPPCompInputStream *st = &vpp->comp_conf.InputStream[1];
206  int ret = 0;
207 
208  av_log(ctx, AV_LOG_DEBUG, "Input[%d] is of %s.\n", FF_INLINK_IDX(inlink),
209  av_get_pix_fmt_name(inlink->format));
210 
211  vpp->var_values[VAR_OVERLAY_iW] = inlink->w;
212  vpp->var_values[VAR_OVERLAY_iH] = inlink->h;
213 
214  ret = eval_expr(ctx);
215  if (ret < 0)
216  return ret;
217 
218  st->DstX = vpp->var_values[VAR_OX];
219  st->DstY = vpp->var_values[VAR_OY];
220  st->DstW = vpp->var_values[VAR_OW];
221  st->DstH = vpp->var_values[VAR_OH];
222  st->GlobalAlpha = vpp->overlay_alpha;
223  st->GlobalAlphaEnable = (st->GlobalAlpha < 255);
224  st->PixelAlphaEnable = have_alpha_planar(inlink);
225 
226  return 0;
227 }
228 
230 {
231  AVFilterContext *ctx = fs->parent;
232  QSVVPPContext *qsv = fs->opaque;
233  AVFrame *frame = NULL;
234  int ret = 0, i;
235 
236  for (i = 0; i < ctx->nb_inputs; i++) {
238  if (ret == 0)
239  ret = ff_qsvvpp_filter_frame(qsv, ctx->inputs[i], frame);
240  if (ret < 0 && ret != AVERROR(EAGAIN))
241  break;
242  }
243 
244  return ret;
245 }
246 
248 {
249  QSVOverlayContext *s = ctx->priv;
250  int ret, i;
251 
252  s->fs.on_event = process_frame;
253  s->fs.opaque = s;
254  ret = ff_framesync_init(&s->fs, ctx, ctx->nb_inputs);
255  if (ret < 0)
256  return ret;
257 
258  for (i = 0; i < ctx->nb_inputs; i++) {
259  FFFrameSyncIn *in = &s->fs.in[i];
260  in->before = EXT_STOP;
261  in->after = EXT_INFINITY;
262  in->sync = i ? 1 : 2;
263  in->time_base = ctx->inputs[i]->time_base;
264  }
265 
266  return ff_framesync_configure(&s->fs);
267 }
268 
269 static int config_output(AVFilterLink *outlink)
270 {
271  AVFilterContext *ctx = outlink->src;
272  QSVOverlayContext *vpp = ctx->priv;
273  AVFilterLink *in0 = ctx->inputs[0];
274  AVFilterLink *in1 = ctx->inputs[1];
275  int ret;
276 
277  av_log(ctx, AV_LOG_DEBUG, "Output is of %s.\n", av_get_pix_fmt_name(outlink->format));
278  vpp->qsv_param.out_sw_format = in0->format;
279  if ((in0->format == AV_PIX_FMT_QSV && in1->format != AV_PIX_FMT_QSV) ||
280  (in0->format != AV_PIX_FMT_QSV && in1->format == AV_PIX_FMT_QSV)) {
281  av_log(ctx, AV_LOG_ERROR, "Mixing hardware and software pixel formats is not supported.\n");
282  return AVERROR(EINVAL);
283  } else if (in0->format == AV_PIX_FMT_QSV) {
286 
287  if (hw_frame0->device_ctx != hw_frame1->device_ctx) {
288  av_log(ctx, AV_LOG_ERROR, "Inputs with different underlying QSV devices are forbidden.\n");
289  return AVERROR(EINVAL);
290  }
291  vpp->qsv_param.out_sw_format = hw_frame0->sw_format;
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_init(ctx, &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_calloc(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 
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  .get_buffer.video = ff_qsvvpp_get_video_buffer,
402  },
403  {
404  .name = "overlay",
405  .type = AVMEDIA_TYPE_VIDEO,
406  .config_props = config_overlay_input,
407  .get_buffer.video = ff_qsvvpp_get_video_buffer,
408  },
409 };
410 
412  {
413  .name = "default",
414  .type = AVMEDIA_TYPE_VIDEO,
415  .config_props = config_output,
416  },
417 };
418 
420  .name = "overlay_qsv",
421  .description = NULL_IF_CONFIG_SMALL("Quick Sync Video overlay."),
422  .priv_size = sizeof(QSVOverlayContext),
423  .preinit = overlay_qsv_framesync_preinit,
426  .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:269
VAR_OVERLAY_W
@ VAR_OVERLAY_W
Definition: vf_overlay_qsv.c:54
QSVOverlayContext::var_values
double var_values[VAR_VARS_NB]
Definition: vf_overlay_qsv.c:65
FFFrameSyncIn::time_base
AVRational time_base
Time base for the incoming frames.
Definition: framesync.h:117
ff_framesync_configure
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
Definition: framesync.c:134
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
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:52
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:380
VAR_OVERLAY_X
@ VAR_OVERLAY_X
Definition: vf_overlay_qsv.c:52
ff_framesync_uninit
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
Definition: framesync.c:304
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:370
QSVVPPParam::out_sw_format
enum AVPixelFormat out_sw_format
Definition: qsvvpp.h:102
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
FRAMESYNC_DEFINE_CLASS
FRAMESYNC_DEFINE_CLASS(overlay_qsv, QSVOverlayContext, fs)
QSVOverlayContext::overlay_oy
char * overlay_oy
Definition: vf_overlay_qsv.c:67
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:267
var_names
static const char *const var_names[]
Definition: vf_overlay_qsv.c:72
ff_qsvvpp_get_video_buffer
AVFrame * ff_qsvvpp_get_video_buffer(AVFilterLink *inlink, int w, int h)
Definition: qsvvpp.c:1017
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:229
VAR_OY
@ VAR_OY
Definition: vf_overlay_qsv.c:53
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
pixdesc.h
QSVOverlayContext::qsv
QSVVPPContext qsv
Definition: vf_overlay_qsv.c:60
AVOption
AVOption.
Definition: opt.h:251
EOF_ACTION_ENDALL
@ EOF_ACTION_ENDALL
Definition: framesync.h:28
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
QSVOverlayContext
Definition: vf_overlay_qsv.c:59
VAR_OVERLAY_iH
@ VAR_OVERLAY_iH
Definition: vf_overlay_qsv.c:51
preinit
static av_cold int preinit(AVFilterContext *ctx)
Definition: af_aresample.c:46
mathematics.h
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
FLAGS
#define FLAGS
Definition: vf_overlay_qsv.c:45
FFFrameSync
Frame sync structure.
Definition: framesync.h:168
EXT_INFINITY
@ EXT_INFINITY
Extend the frame to infinity.
Definition: framesync.h:75
video.h
OFFSET
#define OFFSET(x)
Definition: vf_overlay_qsv.c:44
config_overlay_input
static int config_overlay_input(AVFilterLink *inlink)
Definition: vf_overlay_qsv.c:201
formats.h
overlay_qsv_options
static const AVOption overlay_qsv_options[]
Definition: vf_overlay_qsv.c:84
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:417
QSVOverlayContext::overlay_oh
char * overlay_oh
Definition: vf_overlay_qsv.c:67
qsvvpp.h
VAR_OW
@ VAR_OW
Definition: vf_overlay_qsv.c:54
FFFrameSyncIn
Input stream structure.
Definition: framesync.h:102
FFFrameSyncIn::sync
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
Definition: framesync.h:160
VAR_OVERLAY_Y
@ VAR_OVERLAY_Y
Definition: vf_overlay_qsv.c:53
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:49
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
QSVOverlayContext::overlay_pixel_alpha
uint16_t overlay_pixel_alpha
Definition: vf_overlay_qsv.c:68
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:256
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:596
VAR_OVERLAY_iW
@ VAR_OVERLAY_iW
Definition: vf_overlay_qsv.c:50
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts_bsf.c:365
var_name
var_name
Definition: noise_bsf.c:46
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
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:41
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
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
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:55
init_framesync
static int init_framesync(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:247
ff_qsvvpp_close
int ff_qsvvpp_close(AVFilterContext *avctx)
Definition: qsvvpp.c:811
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:258
QSVVPPParam::num_crop
int num_crop
Definition: qsvvpp.h:105
QSVVPPParam
Definition: qsvvpp.h:93
QSVOverlayContext::overlay_alpha
uint16_t overlay_alpha
Definition: vf_overlay_qsv.c:68
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:55
VAR_MAIN_iW
@ VAR_MAIN_iW
Definition: vf_overlay_qsv.c:48
eval_expr
static int eval_expr(AVFilterContext *ctx)
Definition: vf_overlay_qsv.c:103
AV_PIX_FMT_QSV
@ AV_PIX_FMT_QSV
HW acceleration through QSV, data[3] contains a pointer to the mfxFrameSurface1 structure.
Definition: pixfmt.h:240
QSVOverlayContext::overlay_ow
char * overlay_ow
Definition: vf_overlay_qsv.c:67
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:115
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:411
config_main_input
static int config_main_input(AVFilterLink *inlink)
Definition: vf_overlay_qsv.c:177
QSVOverlayContext::comp_conf
mfxExtVPPComposite comp_conf
Definition: vf_overlay_qsv.c:64
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:417
have_alpha_planar
static int have_alpha_planar(AVFilterLink *link)
Definition: vf_overlay_qsv.c:159
VAR_VARS_NB
@ VAR_VARS_NB
Definition: vf_overlay_qsv.c:56
ff_vf_overlay_qsv
const AVFilter ff_vf_overlay_qsv
Definition: vf_overlay_qsv.c:419
AV_PIX_FMT_RGB32
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:432
QSVOverlayContext::overlay_ox
char * overlay_ox
Definition: vf_overlay_qsv.c:67
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:62
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
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:64
common.h
out_pix_fmts
static enum AVPixelFormat out_pix_fmts[]
Definition: vf_ciescope.c:137
QSVVPPParam::num_ext_buf
int num_ext_buf
Definition: qsvvpp.h:98
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:264
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:95
ff_qsvvpp_init
int ff_qsvvpp_init(AVFilterContext *avctx, QSVVPPParam *param)
Definition: qsvvpp.c:690
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
PASS_EXPR
#define PASS_EXPR(e, s)
AVFilter
Filter definition.
Definition: avfilter.h:171
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:49
ff_framesync_init
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
Definition: framesync.c:86
EOF_ACTION_REPEAT
@ EOF_ACTION_REPEAT
Definition: framesync.h:27
VAR_MW
@ VAR_MW
Definition: vf_overlay_qsv.c:48
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:669
FFFrameSyncIn::before
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
Definition: framesync.h:107
framesync.h
ff_qsvvpp_filter_frame
int ff_qsvvpp_filter_frame(QSVVPPContext *s, AVFilterLink *inlink, AVFrame *picref)
Definition: qsvvpp.c:835
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:333
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
AVFilterContext
An instance of a filter.
Definition: avfilter.h:402
desc
const char * desc
Definition: libsvtav1.c:83
VAR_OVERLAY_H
@ VAR_OVERLAY_H
Definition: vf_overlay_qsv.c:55
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:69
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
imgutils.h
hwcontext.h
VAR_MAIN_iH
@ VAR_MAIN_iH
Definition: vf_overlay_qsv.c:49
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
QSVOverlayContext::qsv_param
QSVVPPParam qsv_param
Definition: vf_overlay_qsv.c:63
FFFrameSyncIn::after
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
Definition: framesync.h:112
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:285
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:355
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:99
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:2808