FFmpeg
vf_dnn_processing.c
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1 /*
2  * Copyright (c) 2019 Guo Yejun
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * implementing a generic image processing filter using deep learning networks.
24  */
25 
26 #include "libavformat/avio.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/avassert.h"
30 #include "libavutil/imgutils.h"
31 #include "filters.h"
32 #include "dnn_filter_common.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "libswscale/swscale.h"
36 #include "libavutil/time.h"
37 
38 typedef struct DnnProcessingContext {
39  const AVClass *class;
44 
45 #define OFFSET(x) offsetof(DnnProcessingContext, dnnctx.x)
46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
47 static const AVOption dnn_processing_options[] = {
48  { "dnn_backend", "DNN backend", OFFSET(backend_type), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "backend" },
49  { "native", "native backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "backend" },
50 #if (CONFIG_LIBTENSORFLOW == 1)
51  { "tensorflow", "tensorflow backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "backend" },
52 #endif
53 #if (CONFIG_LIBOPENVINO == 1)
54  { "openvino", "openvino backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, FLAGS, "backend" },
55 #endif
57  { NULL }
58 };
59 
60 AVFILTER_DEFINE_CLASS(dnn_processing);
61 
63 {
65  return ff_dnn_init(&ctx->dnnctx, DFT_PROCESS_FRAME, context);
66 }
67 
69 {
70  static const enum AVPixelFormat pix_fmts[] = {
77  };
79 }
80 
81 #define LOG_FORMAT_CHANNEL_MISMATCH() \
82  av_log(ctx, AV_LOG_ERROR, \
83  "the frame's format %s does not match " \
84  "the model input channel %d\n", \
85  av_get_pix_fmt_name(fmt), \
86  model_input->channels);
87 
88 static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
89 {
90  AVFilterContext *ctx = inlink->dst;
91  enum AVPixelFormat fmt = inlink->format;
92 
93  // the design is to add explicit scale filter before this filter
94  if (model_input->height != -1 && model_input->height != inlink->h) {
95  av_log(ctx, AV_LOG_ERROR, "the model requires frame height %d but got %d\n",
96  model_input->height, inlink->h);
97  return AVERROR(EIO);
98  }
99  if (model_input->width != -1 && model_input->width != inlink->w) {
100  av_log(ctx, AV_LOG_ERROR, "the model requires frame width %d but got %d\n",
101  model_input->width, inlink->w);
102  return AVERROR(EIO);
103  }
104  if (model_input->dt != DNN_FLOAT) {
105  avpriv_report_missing_feature(ctx, "data type rather than DNN_FLOAT");
106  return AVERROR(EIO);
107  }
108 
109  switch (fmt) {
110  case AV_PIX_FMT_RGB24:
111  case AV_PIX_FMT_BGR24:
112  if (model_input->channels != 3) {
114  return AVERROR(EIO);
115  }
116  return 0;
117  case AV_PIX_FMT_GRAYF32:
118  case AV_PIX_FMT_YUV420P:
119  case AV_PIX_FMT_YUV422P:
120  case AV_PIX_FMT_YUV444P:
121  case AV_PIX_FMT_YUV410P:
122  case AV_PIX_FMT_YUV411P:
123  case AV_PIX_FMT_NV12:
124  if (model_input->channels != 1) {
126  return AVERROR(EIO);
127  }
128  return 0;
129  default:
131  return AVERROR(EIO);
132  }
133 
134  return 0;
135 }
136 
138 {
142  DNNData model_input;
143  int check;
144 
145  result = ff_dnn_get_input(&ctx->dnnctx, &model_input);
146  if (result != DNN_SUCCESS) {
147  av_log(ctx, AV_LOG_ERROR, "could not get input from the model\n");
148  return AVERROR(EIO);
149  }
150 
151  check = check_modelinput_inlink(&model_input, inlink);
152  if (check != 0) {
153  return check;
154  }
155 
156  return 0;
157 }
158 
160 {
162  av_assert0(desc);
163  return !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components == 3;
164 }
165 
166 static int prepare_uv_scale(AVFilterLink *outlink)
167 {
168  AVFilterContext *context = outlink->src;
170  AVFilterLink *inlink = context->inputs[0];
171  enum AVPixelFormat fmt = inlink->format;
172 
173  if (isPlanarYUV(fmt)) {
174  if (inlink->w != outlink->w || inlink->h != outlink->h) {
175  if (fmt == AV_PIX_FMT_NV12) {
176  ctx->sws_uv_scale = sws_getContext(inlink->w >> 1, inlink->h >> 1, AV_PIX_FMT_YA8,
177  outlink->w >> 1, outlink->h >> 1, AV_PIX_FMT_YA8,
179  ctx->sws_uv_height = inlink->h >> 1;
180  } else {
182  int sws_src_h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
183  int sws_src_w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
184  int sws_dst_h = AV_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h);
185  int sws_dst_w = AV_CEIL_RSHIFT(outlink->w, desc->log2_chroma_w);
186  ctx->sws_uv_scale = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8,
187  sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8,
189  ctx->sws_uv_height = sws_src_h;
190  }
191  }
192  }
193 
194  return 0;
195 }
196 
197 static int config_output(AVFilterLink *outlink)
198 {
199  AVFilterContext *context = outlink->src;
202  AVFilterLink *inlink = context->inputs[0];
203 
204  // have a try run in case that the dnn model resize the frame
205  result = ff_dnn_get_output(&ctx->dnnctx, inlink->w, inlink->h, &outlink->w, &outlink->h);
206  if (result != DNN_SUCCESS) {
207  av_log(ctx, AV_LOG_ERROR, "could not get output from the model\n");
208  return AVERROR(EIO);
209  }
210 
211  prepare_uv_scale(outlink);
212 
213  return 0;
214 }
215 
217 {
218  const AVPixFmtDescriptor *desc;
219  int uv_height;
220 
221  if (!ctx->sws_uv_scale) {
222  av_assert0(in->height == out->height && in->width == out->width);
224  uv_height = AV_CEIL_RSHIFT(in->height, desc->log2_chroma_h);
225  for (int i = 1; i < 3; ++i) {
226  int bytewidth = av_image_get_linesize(in->format, in->width, i);
227  if (bytewidth < 0) {
228  return AVERROR(EINVAL);
229  }
230  av_image_copy_plane(out->data[i], out->linesize[i],
231  in->data[i], in->linesize[i],
232  bytewidth, uv_height);
233  }
234  } else if (in->format == AV_PIX_FMT_NV12) {
235  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
236  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
237  } else {
238  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
239  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
240  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 2), in->linesize + 2,
241  0, ctx->sws_uv_height, out->data + 2, out->linesize + 2);
242  }
243 
244  return 0;
245 }
246 
247 static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
248 {
249  DnnProcessingContext *ctx = outlink->src->priv;
250  int ret;
251  DNNAsyncStatusType async_state;
252 
253  ret = ff_dnn_flush(&ctx->dnnctx);
254  if (ret != DNN_SUCCESS) {
255  return -1;
256  }
257 
258  do {
259  AVFrame *in_frame = NULL;
260  AVFrame *out_frame = NULL;
261  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
262  if (out_frame) {
263  if (isPlanarYUV(in_frame->format))
264  copy_uv_planes(ctx, out_frame, in_frame);
265  av_frame_free(&in_frame);
266  ret = ff_filter_frame(outlink, out_frame);
267  if (ret < 0)
268  return ret;
269  if (out_pts)
270  *out_pts = out_frame->pts + pts;
271  }
272  av_usleep(5000);
273  } while (async_state >= DAST_NOT_READY);
274 
275  return 0;
276 }
277 
279 {
280  AVFilterLink *inlink = filter_ctx->inputs[0];
281  AVFilterLink *outlink = filter_ctx->outputs[0];
283  AVFrame *in = NULL, *out = NULL;
284  int64_t pts;
285  int ret, status;
286  int got_frame = 0;
287  int async_state;
288 
290 
291  do {
292  // drain all input frames
294  if (ret < 0)
295  return ret;
296  if (ret > 0) {
297  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
298  if (!out) {
299  av_frame_free(&in);
300  return AVERROR(ENOMEM);
301  }
303  if (ff_dnn_execute_model(&ctx->dnnctx, in, out) != DNN_SUCCESS) {
304  return AVERROR(EIO);
305  }
306  }
307  } while (ret > 0);
308 
309  // drain all processed frames
310  do {
311  AVFrame *in_frame = NULL;
312  AVFrame *out_frame = NULL;
313  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
314  if (out_frame) {
315  if (isPlanarYUV(in_frame->format))
316  copy_uv_planes(ctx, out_frame, in_frame);
317  av_frame_free(&in_frame);
318  ret = ff_filter_frame(outlink, out_frame);
319  if (ret < 0)
320  return ret;
321  got_frame = 1;
322  }
323  } while (async_state == DAST_SUCCESS);
324 
325  // if frame got, schedule to next filter
326  if (got_frame)
327  return 0;
328 
330  if (status == AVERROR_EOF) {
331  int64_t out_pts = pts;
332  ret = flush_frame(outlink, pts, &out_pts);
333  ff_outlink_set_status(outlink, status, out_pts);
334  return ret;
335  }
336  }
337 
339 
340  return 0;
341 }
342 
344 {
346 
347  sws_freeContext(context->sws_uv_scale);
348  ff_dnn_uninit(&context->dnnctx);
349 }
350 
352  {
353  .name = "default",
354  .type = AVMEDIA_TYPE_VIDEO,
355  .config_props = config_input,
356  },
357 };
358 
360  {
361  .name = "default",
362  .type = AVMEDIA_TYPE_VIDEO,
363  .config_props = config_output,
364  },
365 };
366 
368  .name = "dnn_processing",
369  .description = NULL_IF_CONFIG_SMALL("Apply DNN processing filter to the input."),
370  .priv_size = sizeof(DnnProcessingContext),
371  .init = init,
372  .uninit = uninit,
376  .priv_class = &dnn_processing_class,
377  .activate = activate,
378 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:98
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dnn_processing.c:343
dnn_processing_options
static const AVOption dnn_processing_options[]
Definition: vf_dnn_processing.c:47
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
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
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:133
filter_ctx
static FilteringContext * filter_ctx
Definition: transcoding.c:49
ff_dnn_get_output
DNNReturnType ff_dnn_get_output(DnnContext *ctx, int input_width, int input_height, int *output_width, int *output_height)
Definition: dnn_filter_common.c:114
out
FILE * out
Definition: movenc.c:54
OFFSET
#define OFFSET(x)
Definition: vf_dnn_processing.c:45
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1019
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
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
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:396
DnnProcessingContext
Definition: vf_dnn_processing.c:38
AVFrame::width
int width
Definition: frame.h:361
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
ff_dnn_get_input
DNNReturnType ff_dnn_get_input(DnnContext *ctx, DNNData *input)
Definition: dnn_filter_common.c:109
sws_scale
int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
swscale wrapper, so we don't need to export the SwsContext.
Definition: swscale.c:1196
DNNData::height
int height
Definition: dnn_interface.h:61
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_dnn_processing.c:137
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
dnn_filter_common.h
FF_FILTER_FORWARD_STATUS_BACK
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition: filters.h:199
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
av_image_copy_plane
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.
Definition: imgutils.c:374
formats.h
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1418
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:361
DnnContext
Definition: dnn_filter_common.h:29
DNN_SUCCESS
@ DNN_SUCCESS
Definition: dnn_interface.h:33
pts
static int64_t pts
Definition: transcode_aac.c:653
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
flush_frame
static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
Definition: vf_dnn_processing.c:247
avassert.h
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
check
#define check(x, y, S, v)
Definition: motion_est_template.c:405
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
copy_uv_planes
static int copy_uv_planes(DnnProcessingContext *ctx, AVFrame *out, const AVFrame *in)
Definition: vf_dnn_processing.c:216
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:703
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
DNNReturnType
DNNReturnType
Definition: dnn_interface.h:33
DNNData
Definition: dnn_interface.h:59
filters.h
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
ff_dnn_get_result
DNNAsyncStatusType ff_dnn_get_result(DnnContext *ctx, AVFrame **in_frame, AVFrame **out_frame)
Definition: dnn_filter_common.c:147
ctx
AVFormatContext * ctx
Definition: movenc.c:48
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demuxing_decoding.c:41
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
av_usleep
int av_usleep(unsigned usec)
Sleep for a period of time.
Definition: time.c:84
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:421
check_modelinput_inlink
static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
Definition: vf_dnn_processing.c:88
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
context
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 keep it simple and lowercase description are in without and describe what they for example set the foo of the bar offset is the offset of the field in your context
Definition: writing_filters.txt:91
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(dnn_processing)
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
result
and forward the result(frame or status change) to the corresponding input. If nothing is possible
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:537
init
static av_cold int init(AVFilterContext *context)
Definition: vf_dnn_processing.c:62
time.h
dnn_processing_inputs
static const AVFilterPad dnn_processing_inputs[]
Definition: vf_dnn_processing.c:351
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1372
query_formats
static int query_formats(AVFilterContext *context)
Definition: vf_dnn_processing.c:68
DNN_COMMON_OPTIONS
#define DNN_COMMON_OPTIONS
Definition: dnn_filter_common.h:43
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
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
DAST_SUCCESS
@ DAST_SUCCESS
Definition: dnn_interface.h:49
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
sws_getContext
struct SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:2002
avio.h
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:376
DNNData::dt
DNNDataType dt
Definition: dnn_interface.h:63
ff_vf_dnn_processing
const AVFilter ff_vf_dnn_processing
Definition: vf_dnn_processing.c:367
DNN_FLOAT
@ DNN_FLOAT
Definition: dnn_interface.h:37
FF_FILTER_FORWARD_WANTED
FF_FILTER_FORWARD_WANTED(outlink, inlink)
internal.h
av_image_get_linesize
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
Compute the size of an image line with format pix_fmt and width width for the plane plane.
Definition: imgutils.c:76
i
int i
Definition: input.c:406
activate
static int activate(AVFilterContext *filter_ctx)
Definition: vf_dnn_processing.c:278
av_always_inline
#define av_always_inline
Definition: attributes.h:49
DnnProcessingContext::sws_uv_height
int sws_uv_height
Definition: vf_dnn_processing.c:42
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
DnnProcessingContext::dnnctx
DnnContext dnnctx
Definition: vf_dnn_processing.c:40
AVFilter
Filter definition.
Definition: avfilter.h:149
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
AVFrame::height
int height
Definition: frame.h:361
sws_freeContext
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
Definition: utils.c:2333
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:346
isPlanarYUV
static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt)
Definition: vf_dnn_processing.c:159
LOG_FORMAT_CHANNEL_MISMATCH
#define LOG_FORMAT_CHANNEL_MISMATCH()
Definition: vf_dnn_processing.c:81
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
DNNData::channels
int channels
Definition: dnn_interface.h:61
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
ff_dnn_execute_model
DNNReturnType ff_dnn_execute_model(DnnContext *ctx, AVFrame *in_frame, AVFrame *out_frame)
Definition: dnn_filter_common.c:120
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
ff_dnn_init
int ff_dnn_init(DnnContext *ctx, DNNFunctionType func_type, AVFilterContext *filter_ctx)
Definition: dnn_filter_common.c:54
DNNData::width
int width
Definition: dnn_interface.h:61
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
ff_dnn_flush
DNNReturnType ff_dnn_flush(DnnContext *ctx)
Definition: dnn_filter_common.c:152
imgutils.h
prepare_uv_scale
static int prepare_uv_scale(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:166
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
FLAGS
#define FLAGS
Definition: vf_dnn_processing.c:46
ff_dnn_uninit
void ff_dnn_uninit(DnnContext *ctx)
Definition: dnn_filter_common.c:157
DAST_NOT_READY
@ DAST_NOT_READY
Definition: dnn_interface.h:48
SwsContext
Definition: swscale_internal.h:300
DNNAsyncStatusType
DNNAsyncStatusType
Definition: dnn_interface.h:45
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
DFT_PROCESS_FRAME
@ DFT_PROCESS_FRAME
Definition: dnn_interface.h:54
DnnProcessingContext::sws_uv_scale
struct SwsContext * sws_uv_scale
Definition: vf_dnn_processing.c:41
SWS_BICUBIC
#define SWS_BICUBIC
Definition: swscale.h:61
swscale.h
dnn_processing_outputs
static const AVFilterPad dnn_processing_outputs[]
Definition: vf_dnn_processing.c:359
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:2460
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:197