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 "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavutil/avassert.h"
29 #include "libavutil/imgutils.h"
30 #include "filters.h"
31 #include "dnn_filter_common.h"
32 #include "internal.h"
33 #include "video.h"
34 #include "libswscale/swscale.h"
35 #include "libavutil/time.h"
36 
37 typedef struct DnnProcessingContext {
38  const AVClass *class;
43 
44 #define OFFSET(x) offsetof(DnnProcessingContext, dnnctx.x)
45 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
46 static const AVOption dnn_processing_options[] = {
47  { "dnn_backend", "DNN backend", OFFSET(backend_type), AV_OPT_TYPE_INT, { .i64 = DNN_TF }, INT_MIN, INT_MAX, FLAGS, .unit = "backend" },
48 #if (CONFIG_LIBTENSORFLOW == 1)
49  { "tensorflow", "tensorflow backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = DNN_TF }, 0, 0, FLAGS, .unit = "backend" },
50 #endif
51 #if (CONFIG_LIBOPENVINO == 1)
52  { "openvino", "openvino backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = DNN_OV }, 0, 0, FLAGS, .unit = "backend" },
53 #endif
55  { NULL }
56 };
57 
58 AVFILTER_DEFINE_CLASS(dnn_processing);
59 
61 {
63  return ff_dnn_init(&ctx->dnnctx, DFT_PROCESS_FRAME, context);
64 }
65 
66 static const enum AVPixelFormat pix_fmts[] = {
73 };
74 
75 #define LOG_FORMAT_CHANNEL_MISMATCH() \
76  av_log(ctx, AV_LOG_ERROR, \
77  "the frame's format %s does not match " \
78  "the model input channel %d\n", \
79  av_get_pix_fmt_name(fmt), \
80  model_input->dims[dnn_get_channel_idx_by_layout(model_input->layout)]);
81 
82 static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
83 {
84  AVFilterContext *ctx = inlink->dst;
85  enum AVPixelFormat fmt = inlink->format;
86  int width_idx, height_idx;
87 
88  width_idx = dnn_get_width_idx_by_layout(model_input->layout);
89  height_idx = dnn_get_height_idx_by_layout(model_input->layout);
90  // the design is to add explicit scale filter before this filter
91  if (model_input->dims[height_idx] != -1 &&
92  model_input->dims[height_idx] != inlink->h) {
93  av_log(ctx, AV_LOG_ERROR, "the model requires frame height %d but got %d\n",
94  model_input->dims[height_idx],
95  inlink->h);
96  return AVERROR(EIO);
97  }
98  if (model_input->dims[width_idx] != -1 &&
99  model_input->dims[width_idx] != inlink->w) {
100  av_log(ctx, AV_LOG_ERROR, "the model requires frame width %d but got %d\n",
101  model_input->dims[width_idx],
102  inlink->w);
103  return AVERROR(EIO);
104  }
105  if (model_input->dt != DNN_FLOAT) {
106  avpriv_report_missing_feature(ctx, "data type rather than DNN_FLOAT");
107  return AVERROR(EIO);
108  }
109 
110  switch (fmt) {
111  case AV_PIX_FMT_RGB24:
112  case AV_PIX_FMT_BGR24:
113  if (model_input->dims[dnn_get_channel_idx_by_layout(model_input->layout)] != 3) {
115  return AVERROR(EIO);
116  }
117  return 0;
118  case AV_PIX_FMT_GRAY8:
119  case AV_PIX_FMT_GRAYF32:
120  case AV_PIX_FMT_YUV420P:
121  case AV_PIX_FMT_YUV422P:
122  case AV_PIX_FMT_YUV444P:
123  case AV_PIX_FMT_YUV410P:
124  case AV_PIX_FMT_YUV411P:
125  case AV_PIX_FMT_NV12:
126  if (model_input->dims[dnn_get_channel_idx_by_layout(model_input->layout)] != 1) {
128  return AVERROR(EIO);
129  }
130  return 0;
131  default:
133  return AVERROR(EIO);
134  }
135 
136  return 0;
137 }
138 
140 {
143  int result;
144  DNNData model_input;
145  int check;
146 
147  result = ff_dnn_get_input(&ctx->dnnctx, &model_input);
148  if (result != 0) {
149  av_log(ctx, AV_LOG_ERROR, "could not get input from the model\n");
150  return result;
151  }
152 
153  check = check_modelinput_inlink(&model_input, inlink);
154  if (check != 0) {
155  return check;
156  }
157 
158  return 0;
159 }
160 
162 {
164  av_assert0(desc);
165  return !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components == 3;
166 }
167 
168 static int prepare_uv_scale(AVFilterLink *outlink)
169 {
170  AVFilterContext *context = outlink->src;
172  AVFilterLink *inlink = context->inputs[0];
173  enum AVPixelFormat fmt = inlink->format;
174 
175  if (isPlanarYUV(fmt)) {
176  if (inlink->w != outlink->w || inlink->h != outlink->h) {
177  if (fmt == AV_PIX_FMT_NV12) {
178  ctx->sws_uv_scale = sws_getContext(inlink->w >> 1, inlink->h >> 1, AV_PIX_FMT_YA8,
179  outlink->w >> 1, outlink->h >> 1, AV_PIX_FMT_YA8,
181  ctx->sws_uv_height = inlink->h >> 1;
182  } else {
184  int sws_src_h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
185  int sws_src_w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
186  int sws_dst_h = AV_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h);
187  int sws_dst_w = AV_CEIL_RSHIFT(outlink->w, desc->log2_chroma_w);
188  ctx->sws_uv_scale = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8,
189  sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8,
191  ctx->sws_uv_height = sws_src_h;
192  }
193  }
194  }
195 
196  return 0;
197 }
198 
199 static int config_output(AVFilterLink *outlink)
200 {
201  AVFilterContext *context = outlink->src;
203  int result;
204  AVFilterLink *inlink = context->inputs[0];
205 
206  // have a try run in case that the dnn model resize the frame
207  result = ff_dnn_get_output(&ctx->dnnctx, inlink->w, inlink->h, &outlink->w, &outlink->h);
208  if (result != 0) {
209  av_log(ctx, AV_LOG_ERROR, "could not get output from the model\n");
210  return result;
211  }
212 
213  prepare_uv_scale(outlink);
214 
215  return 0;
216 }
217 
219 {
220  const AVPixFmtDescriptor *desc;
221  int uv_height;
222 
223  if (!ctx->sws_uv_scale) {
224  av_assert0(in->height == out->height && in->width == out->width);
226  uv_height = AV_CEIL_RSHIFT(in->height, desc->log2_chroma_h);
227  for (int i = 1; i < 3; ++i) {
228  int bytewidth = av_image_get_linesize(in->format, in->width, i);
229  if (bytewidth < 0) {
230  return AVERROR(EINVAL);
231  }
232  av_image_copy_plane(out->data[i], out->linesize[i],
233  in->data[i], in->linesize[i],
234  bytewidth, uv_height);
235  }
236  } else if (in->format == AV_PIX_FMT_NV12) {
237  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
238  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
239  } else {
240  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
241  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
242  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 2), in->linesize + 2,
243  0, ctx->sws_uv_height, out->data + 2, out->linesize + 2);
244  }
245 
246  return 0;
247 }
248 
249 static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
250 {
251  DnnProcessingContext *ctx = outlink->src->priv;
252  int ret;
253  DNNAsyncStatusType async_state;
254 
255  ret = ff_dnn_flush(&ctx->dnnctx);
256  if (ret != 0) {
257  return -1;
258  }
259 
260  do {
261  AVFrame *in_frame = NULL;
262  AVFrame *out_frame = NULL;
263  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
264  if (out_frame) {
265  if (isPlanarYUV(in_frame->format))
266  copy_uv_planes(ctx, out_frame, in_frame);
267  av_frame_free(&in_frame);
268  ret = ff_filter_frame(outlink, out_frame);
269  if (ret < 0)
270  return ret;
271  if (out_pts)
272  *out_pts = out_frame->pts + pts;
273  }
274  av_usleep(5000);
275  } while (async_state >= DAST_NOT_READY);
276 
277  return 0;
278 }
279 
281 {
282  AVFilterLink *inlink = filter_ctx->inputs[0];
283  AVFilterLink *outlink = filter_ctx->outputs[0];
285  AVFrame *in = NULL, *out = NULL;
286  int64_t pts;
287  int ret, status;
288  int got_frame = 0;
289  int async_state;
290 
292 
293  do {
294  // drain all input frames
296  if (ret < 0)
297  return ret;
298  if (ret > 0) {
299  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
300  if (!out) {
301  av_frame_free(&in);
302  return AVERROR(ENOMEM);
303  }
305  if (ff_dnn_execute_model(&ctx->dnnctx, in, out) != 0) {
306  return AVERROR(EIO);
307  }
308  }
309  } while (ret > 0);
310 
311  // drain all processed frames
312  do {
313  AVFrame *in_frame = NULL;
314  AVFrame *out_frame = NULL;
315  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
316  if (out_frame) {
317  if (isPlanarYUV(in_frame->format))
318  copy_uv_planes(ctx, out_frame, in_frame);
319  av_frame_free(&in_frame);
320  ret = ff_filter_frame(outlink, out_frame);
321  if (ret < 0)
322  return ret;
323  got_frame = 1;
324  }
325  } while (async_state == DAST_SUCCESS);
326 
327  // if frame got, schedule to next filter
328  if (got_frame)
329  return 0;
330 
332  if (status == AVERROR_EOF) {
333  int64_t out_pts = pts;
334  ret = flush_frame(outlink, pts, &out_pts);
335  ff_outlink_set_status(outlink, status, out_pts);
336  return ret;
337  }
338  }
339 
341 
342  return 0;
343 }
344 
346 {
348 
349  sws_freeContext(context->sws_uv_scale);
350  ff_dnn_uninit(&context->dnnctx);
351 }
352 
354  {
355  .name = "default",
356  .type = AVMEDIA_TYPE_VIDEO,
357  .config_props = config_input,
358  },
359 };
360 
362  {
363  .name = "default",
364  .type = AVMEDIA_TYPE_VIDEO,
365  .config_props = config_output,
366  },
367 };
368 
370  .name = "dnn_processing",
371  .description = NULL_IF_CONFIG_SMALL("Apply DNN processing filter to the input."),
372  .priv_size = sizeof(DnnProcessingContext),
373  .init = init,
374  .uninit = uninit,
378  .priv_class = &dnn_processing_class,
379  .activate = activate,
380 };
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:112
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dnn_processing.c:345
dnn_processing_options
static const AVOption dnn_processing_options[]
Definition: vf_dnn_processing.c:46
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
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:140
out
FILE * out
Definition: movenc.c:54
OFFSET
#define OFFSET(x)
Definition: vf_dnn_processing.c:44
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1007
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2968
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
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:100
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:452
DnnProcessingContext
Definition: vf_dnn_processing.c:37
AVFrame::width
int width
Definition: frame.h:412
AVOption
AVOption.
Definition: opt.h:251
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:76
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:1205
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_dnn_processing.c:139
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
dnn_filter_common.h
video.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:361
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
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:1438
dnn_get_width_idx_by_layout
static int dnn_get_width_idx_by_layout(DNNLayout layout)
Definition: dnn_interface.h:137
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:424
DnnContext
Definition: dnn_filter_common.h:29
filter_ctx
static FilteringContext * filter_ctx
Definition: transcode.c:51
pts
static int64_t pts
Definition: transcode_aac.c:643
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
flush_frame
static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
Definition: vf_dnn_processing.c:249
avassert.h
DNN_TF
@ DNN_TF
Definition: dnn_interface.h:35
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:218
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_dnn_processing.c:66
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
DNNData
Definition: dnn_interface.h:65
filters.h
ff_dnn_get_result
DNNAsyncStatusType ff_dnn_get_result(DnnContext *ctx, AVFrame **in_frame, AVFrame **out_frame)
Definition: dnn_filter_common.c:150
ctx
AVFormatContext * ctx
Definition: movenc.c:48
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:73
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:515
check_modelinput_inlink
static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
Definition: vf_dnn_processing.c:82
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
ff_dnn_get_input
int ff_dnn_get_input(DnnContext *ctx, DNNData *input)
Definition: dnn_filter_common.c:111
DNN_OV
@ DNN_OV
Definition: dnn_interface.h:35
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:736
init
static av_cold int init(AVFilterContext *context)
Definition: vf_dnn_processing.c:60
time.h
dnn_processing_inputs
static const AVFilterPad dnn_processing_inputs[]
Definition: vf_dnn_processing.c:353
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
ff_dnn_flush
int ff_dnn_flush(DnnContext *ctx)
Definition: dnn_filter_common.c:155
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:1386
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:75
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:106
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:2094
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:427
DNNData::dt
DNNDataType dt
Definition: dnn_interface.h:69
DNNData::layout
DNNLayout layout
Definition: dnn_interface.h:71
ff_vf_dnn_processing
const AVFilter ff_vf_dnn_processing
Definition: vf_dnn_processing.c:369
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
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:245
activate
static int activate(AVFilterContext *filter_ctx)
Definition: vf_dnn_processing.c:280
av_always_inline
#define av_always_inline
Definition: attributes.h:49
DnnProcessingContext::sws_uv_height
int sws_uv_height
Definition: vf_dnn_processing.c:41
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
DnnProcessingContext::dnnctx
DnnContext dnnctx
Definition: vf_dnn_processing.c:39
AVFilter
Filter definition.
Definition: avfilter.h:166
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:96
AVFrame::height
int height
Definition: frame.h:412
status
ov_status_e status
Definition: dnn_backend_openvino.c:120
sws_freeContext
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
Definition: utils.c:2425
ff_dnn_get_output
int ff_dnn_get_output(DnnContext *ctx, int input_width, int input_height, int *output_width, int *output_height)
Definition: dnn_filter_common.c:116
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:409
isPlanarYUV
static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt)
Definition: vf_dnn_processing.c:161
LOG_FORMAT_CHANNEL_MISMATCH
#define LOG_FORMAT_CHANNEL_MISMATCH()
Definition: vf_dnn_processing.c:75
DNNData::dims
int dims[4]
Definition: dnn_interface.h:67
desc
const char * desc
Definition: libsvtav1.c:83
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:77
dnn_get_height_idx_by_layout
static int dnn_get_height_idx_by_layout(DNNLayout layout)
Definition: dnn_interface.h:142
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
dnn_get_channel_idx_by_layout
static int dnn_get_channel_idx_by_layout(DNNLayout layout)
Definition: dnn_interface.h:147
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
ff_dnn_init
int ff_dnn_init(DnnContext *ctx, DNNFunctionType func_type, AVFilterContext *filter_ctx)
Definition: dnn_filter_common.c:54
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:80
imgutils.h
prepare_uv_scale
static int prepare_uv_scale(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:168
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:385
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:79
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
FLAGS
#define FLAGS
Definition: vf_dnn_processing.c:45
ff_dnn_uninit
void ff_dnn_uninit(DnnContext *ctx)
Definition: dnn_filter_common.c:160
ff_dnn_execute_model
int ff_dnn_execute_model(DnnContext *ctx, AVFrame *in_frame, AVFrame *out_frame)
Definition: dnn_filter_common.c:123
DAST_NOT_READY
@ DAST_NOT_READY
Definition: dnn_interface.h:48
SwsContext
Definition: swscale_internal.h:299
DNNAsyncStatusType
DNNAsyncStatusType
Definition: dnn_interface.h:45
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
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:40
SWS_BICUBIC
#define SWS_BICUBIC
Definition: swscale.h:67
swscale.h
dnn_processing_outputs
static const AVFilterPad dnn_processing_outputs[]
Definition: vf_dnn_processing.c:361
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:2888
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:199