FFmpeg  4.3.8
libxavs.c
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1 /*
2  * AVS encoding using the xavs library
3  * Copyright (C) 2010 Amanda, Y.N. Wu <amanda11192003@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdint.h>
27 #include <float.h>
28 #include <xavs.h>
29 #include "avcodec.h"
30 #include "internal.h"
31 #include "packet_internal.h"
32 #include "libavutil/internal.h"
33 #include "libavutil/mem.h"
34 #include "libavutil/opt.h"
35 
36 #define END_OF_STREAM 0x001
37 
38 #define XAVS_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
39 #define XAVS_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
40 #define XAVS_PART_B8X8 0x100 /* Analyze b16x8, b*/
41 
42 typedef struct XavsContext {
43  AVClass *class;
44  xavs_param_t params;
45  xavs_t *enc;
46  xavs_picture_t pic;
48  int sei_size;
50  float crf;
51  int cqp;
52  int b_bias;
53  float cplxblur;
55  int aud;
58  int mbtree;
64 
67 } XavsContext;
68 
69 static void XAVS_log(void *p, int level, const char *fmt, va_list args)
70 {
71  static const int level_map[] = {
72  [XAVS_LOG_ERROR] = AV_LOG_ERROR,
73  [XAVS_LOG_WARNING] = AV_LOG_WARNING,
74  [XAVS_LOG_INFO] = AV_LOG_INFO,
75  [XAVS_LOG_DEBUG] = AV_LOG_DEBUG
76  };
77 
78  if (level < 0 || level > XAVS_LOG_DEBUG)
79  return;
80 
81  av_vlog(p, level_map[level], fmt, args);
82 }
83 
85  xavs_nal_t *nals, int nnal)
86 {
87  XavsContext *x4 = ctx->priv_data;
88  uint8_t *p;
89  int i, s, ret, size = x4->sei_size + AV_INPUT_BUFFER_MIN_SIZE;
90 
91  if (!nnal)
92  return 0;
93 
94  for (i = 0; i < nnal; i++)
95  size += nals[i].i_payload;
96 
97  if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
98  return ret;
99  p = pkt->data;
100 
101  /* Write the SEI as part of the first frame. */
102  if (x4->sei_size > 0 && nnal > 0) {
103  memcpy(p, x4->sei, x4->sei_size);
104  p += x4->sei_size;
105  x4->sei_size = 0;
106  }
107 
108  for (i = 0; i < nnal; i++) {
109  s = xavs_nal_encode(p, &size, 1, nals + i);
110  if (s < 0)
111  return -1;
112  p += s;
113  }
114  pkt->size = p - pkt->data;
115 
116  return 1;
117 }
118 
119 static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt,
120  const AVFrame *frame, int *got_packet)
121 {
122  XavsContext *x4 = avctx->priv_data;
123  xavs_nal_t *nal;
124  int nnal, i, ret;
125  xavs_picture_t pic_out;
126  int pict_type;
127 
128  x4->pic.img.i_csp = XAVS_CSP_I420;
129  x4->pic.img.i_plane = 3;
130 
131  if (frame) {
132  for (i = 0; i < 3; i++) {
133  x4->pic.img.plane[i] = frame->data[i];
134  x4->pic.img.i_stride[i] = frame->linesize[i];
135  }
136 
137  x4->pic.i_pts = frame->pts;
138  x4->pic.i_type = XAVS_TYPE_AUTO;
139  x4->pts_buffer[avctx->frame_number % (avctx->max_b_frames+1)] = frame->pts;
140  }
141 
142  if (xavs_encoder_encode(x4->enc, &nal, &nnal,
143  frame? &x4->pic: NULL, &pic_out) < 0)
144  return -1;
145 
146  ret = encode_nals(avctx, pkt, nal, nnal);
147 
148  if (ret < 0)
149  return -1;
150 
151  if (!ret) {
152  if (!frame && !(x4->end_of_stream)) {
153  if ((ret = ff_alloc_packet2(avctx, pkt, 4, 0)) < 0)
154  return ret;
155 
156  pkt->data[0] = 0x0;
157  pkt->data[1] = 0x0;
158  pkt->data[2] = 0x01;
159  pkt->data[3] = 0xb1;
160  pkt->dts = 2*x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)] -
161  x4->pts_buffer[(x4->out_frame_count-2)%(avctx->max_b_frames+1)];
163  *got_packet = 1;
164  }
165  return 0;
166  }
167 
168 #if FF_API_CODED_FRAME
170  avctx->coded_frame->pts = pic_out.i_pts;
172 #endif
173  pkt->pts = pic_out.i_pts;
174  if (avctx->has_b_frames) {
175  if (!x4->out_frame_count)
176  pkt->dts = pkt->pts - (x4->pts_buffer[1] - x4->pts_buffer[0]);
177  else
178  pkt->dts = x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)];
179  } else
180  pkt->dts = pkt->pts;
181 
182  switch (pic_out.i_type) {
183  case XAVS_TYPE_IDR:
184  case XAVS_TYPE_I:
185  pict_type = AV_PICTURE_TYPE_I;
186  break;
187  case XAVS_TYPE_P:
188  pict_type = AV_PICTURE_TYPE_P;
189  break;
190  case XAVS_TYPE_B:
191  case XAVS_TYPE_BREF:
192  pict_type = AV_PICTURE_TYPE_B;
193  break;
194  default:
195  pict_type = AV_PICTURE_TYPE_NONE;
196  }
197 #if FF_API_CODED_FRAME
199  avctx->coded_frame->pict_type = pict_type;
201 #endif
202 
203  /* There is no IDR frame in AVS JiZhun */
204  /* Sequence header is used as a flag */
205  if (pic_out.i_type == XAVS_TYPE_I) {
206 #if FF_API_CODED_FRAME
208  avctx->coded_frame->key_frame = 1;
210 #endif
211  pkt->flags |= AV_PKT_FLAG_KEY;
212  }
213 
214 #if FF_API_CODED_FRAME
216  avctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
218 #endif
219 
220  ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
221 
222  x4->out_frame_count++;
223  *got_packet = ret;
224  return 0;
225 }
226 
228 {
229  XavsContext *x4 = avctx->priv_data;
230 
231  av_freep(&avctx->extradata);
232  av_freep(&x4->sei);
233  av_freep(&x4->pts_buffer);
234 
235  if (x4->enc)
236  xavs_encoder_close(x4->enc);
237 
238  return 0;
239 }
240 
241 static av_cold int XAVS_init(AVCodecContext *avctx)
242 {
243  XavsContext *x4 = avctx->priv_data;
244 
245  x4->sei_size = 0;
246  xavs_param_default(&x4->params);
247 
248  x4->params.pf_log = XAVS_log;
249  x4->params.p_log_private = avctx;
250  x4->params.i_keyint_max = avctx->gop_size;
251  if (avctx->bit_rate) {
252  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
253  x4->params.rc.i_rc_method = XAVS_RC_ABR;
254  }
255  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
256  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
257  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
258  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
259  x4->params.rc.b_stat_read = 1;
260  } else {
261  if (x4->crf >= 0) {
262  x4->params.rc.i_rc_method = XAVS_RC_CRF;
263  x4->params.rc.f_rf_constant = x4->crf;
264  } else if (x4->cqp >= 0) {
265  x4->params.rc.i_rc_method = XAVS_RC_CQP;
266  x4->params.rc.i_qp_constant = x4->cqp;
267  }
268  }
269 
270  if (x4->aud >= 0)
271  x4->params.b_aud = x4->aud;
272  if (x4->mbtree >= 0)
273  x4->params.rc.b_mb_tree = x4->mbtree;
274  if (x4->direct_pred >= 0)
275  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
276  if (x4->fast_pskip >= 0)
277  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
278  if (x4->motion_est >= 0)
279  x4->params.analyse.i_me_method = x4->motion_est;
280  if (x4->mixed_refs >= 0)
281  x4->params.analyse.b_mixed_references = x4->mixed_refs;
282  if (x4->b_bias != INT_MIN)
283  x4->params.i_bframe_bias = x4->b_bias;
284  if (x4->cplxblur >= 0)
285  x4->params.rc.f_complexity_blur = x4->cplxblur;
286 
287  x4->params.i_bframe = avctx->max_b_frames;
288  /* cabac is not included in AVS JiZhun Profile */
289  x4->params.b_cabac = 0;
290 
291 #if FF_API_PRIVATE_OPT
293  if (avctx->b_frame_strategy)
294  x4->b_frame_strategy = avctx->b_frame_strategy;
296 #endif
297 
298  x4->params.i_bframe_adaptive = x4->b_frame_strategy;
299 
300  avctx->has_b_frames = !!avctx->max_b_frames;
301 
302  /* AVS doesn't allow B picture as reference */
303  /* The max allowed reference frame number of B is 2 */
304  x4->params.i_keyint_min = avctx->keyint_min;
305  if (x4->params.i_keyint_min > x4->params.i_keyint_max)
306  x4->params.i_keyint_min = x4->params.i_keyint_max;
307 
308 #if FF_API_PRIVATE_OPT
310  if (avctx->scenechange_threshold)
313 #endif
314 
315  x4->params.i_scenecut_threshold = x4->scenechange_threshold;
316 
317  // x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
318 
319  x4->params.rc.i_qp_min = avctx->qmin;
320  x4->params.rc.i_qp_max = avctx->qmax;
321  x4->params.rc.i_qp_step = avctx->max_qdiff;
322 
323  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
324  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
325 
326  x4->params.i_frame_reference = avctx->refs;
327 
328  x4->params.i_width = avctx->width;
329  x4->params.i_height = avctx->height;
330  x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
331  x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
332  /* This is only used for counting the fps */
333  x4->params.i_fps_num = avctx->time_base.den;
334  x4->params.i_fps_den = avctx->time_base.num;
335  x4->params.analyse.inter = XAVS_ANALYSE_I8x8 |XAVS_ANALYSE_PSUB16x16| XAVS_ANALYSE_BSUB16x16;
336 
337  x4->params.analyse.i_me_range = avctx->me_range;
338  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
339 
340  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
341  /* AVS P2 only enables 8x8 transform */
342  x4->params.analyse.b_transform_8x8 = 1; //avctx->flags2 & AV_CODEC_FLAG2_8X8DCT;
343 
344  x4->params.analyse.i_trellis = avctx->trellis;
345 
346 #if FF_API_PRIVATE_OPT
348  if (avctx->noise_reduction >= 0)
349  x4->noise_reduction = avctx->noise_reduction;
351 #endif
352 
353  x4->params.analyse.i_noise_reduction = x4->noise_reduction;
354 
355  if (avctx->level > 0)
356  x4->params.i_level_idc = avctx->level;
357 
358  if (avctx->bit_rate > 0)
359  x4->params.rc.f_rate_tolerance =
360  (float)avctx->bit_rate_tolerance / avctx->bit_rate;
361 
362  if ((avctx->rc_buffer_size) &&
363  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
364  x4->params.rc.f_vbv_buffer_init =
365  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
366  } else
367  x4->params.rc.f_vbv_buffer_init = 0.9;
368 
369  /* TAG:do we have MB tree RC method */
370  /* what is the RC method we are now using? Default NO */
371  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
372  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
373 
374 #if FF_API_PRIVATE_OPT
376  if (avctx->chromaoffset)
377  x4->chroma_offset = avctx->chromaoffset;
379 #endif
380 
381  x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
382 
383  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
384  x4->params.i_log_level = XAVS_LOG_DEBUG;
385  x4->params.i_threads = avctx->thread_count;
386  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
387 
388  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
389  x4->params.b_repeat_headers = 0;
390 
391  x4->enc = xavs_encoder_open(&x4->params);
392  if (!x4->enc)
393  return -1;
394 
395  if (!(x4->pts_buffer = av_mallocz_array((avctx->max_b_frames+1), sizeof(*x4->pts_buffer))))
396  return AVERROR(ENOMEM);
397 
398  /* TAG: Do we have GLOBAL HEADER in AVS */
399  /* We Have PPS and SPS in AVS */
400  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER && 0) {
401  xavs_nal_t *nal;
402  int nnal, s, i, size;
403  uint8_t *p;
404 
405  s = xavs_encoder_headers(x4->enc, &nal, &nnal);
406 
407  avctx->extradata = p = av_malloc(s);
408  for (i = 0; i < nnal; i++) {
409  /* Don't put the SEI in extradata. */
410  if (nal[i].i_type == NAL_SEI) {
411  x4->sei = av_malloc( 5 + nal[i].i_payload * 4 / 3 );
412  if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nal + i) < 0)
413  return -1;
414 
415  continue;
416  }
417  size = xavs_nal_encode(p, &s, 1, nal + i);
418  if (size < 0)
419  return -1;
420  p += size;
421  }
422  avctx->extradata_size = p - avctx->extradata;
423  }
424  return 0;
425 }
426 
427 #define OFFSET(x) offsetof(XavsContext, x)
428 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
429 static const AVOption options[] = {
430  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
431  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE },
432  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
433  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
434  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
435  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
436  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
437  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
438  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
439  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
440  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
441  { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE },
442  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
443  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = XAVS_ME_DIA }, -1, XAVS_ME_TESA, VE, "motion-est"},
444  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
445  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
446  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
447  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
448  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
449  { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, VE},
450  { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, VE},
451  { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE},
452  { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE},
453 
454  { NULL },
455 };
456 
457 static const AVClass xavs_class = {
458  .class_name = "libxavs",
459  .item_name = av_default_item_name,
460  .option = options,
461  .version = LIBAVUTIL_VERSION_INT,
462 };
463 
464 static const AVCodecDefault xavs_defaults[] = {
465  { "b", "0" },
466  { NULL },
467 };
468 
470  .name = "libxavs",
471  .long_name = NULL_IF_CONFIG_SMALL("libxavs Chinese AVS (Audio Video Standard)"),
472  .type = AVMEDIA_TYPE_VIDEO,
473  .id = AV_CODEC_ID_CAVS,
474  .priv_data_size = sizeof(XavsContext),
475  .init = XAVS_init,
476  .encode2 = XAVS_frame,
477  .close = XAVS_close,
480  .priv_class = &xavs_class,
481  .defaults = xavs_defaults,
482  .wrapper_name = "libxavs",
483 };
#define NULL
Definition: coverity.c:32
#define VE
Definition: libxavs.c:428
int chroma_offset
Definition: libxavs.c:61
int size
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
AVOption.
Definition: opt.h:246
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:728
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:321
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:1361
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:576
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Memory handling functions.
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
Definition: avcodec.h:786
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1432
xavs_t * enc
Definition: libxavs.c:45
int num
Numerator.
Definition: rational.h:59
int size
Definition: packet.h:356
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:905
int end_of_stream
Definition: libxavs.c:49
static void XAVS_log(void *p, int level, const char *fmt, va_list args)
Definition: libxavs.c:69
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: codec.h:118
AVCodec.
Definition: codec.h:190
static const AVOption options[]
Definition: libxavs.c:429
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:649
Undefined.
Definition: avutil.h:273
static av_cold int XAVS_close(AVCodecContext *avctx)
Definition: libxavs.c:227
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:75
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
int bit_rate_tolerance
number of bits the bitstream is allowed to diverge from the reference.
Definition: avcodec.h:584
uint8_t * sei
Definition: libxavs.c:47
uint8_t
#define av_cold
Definition: attributes.h:88
#define av_malloc(s)
AVOptions.
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:997
float b_quant_factor
qscale factor between IP and B-frames If > 0 then the last P-frame quantizer will be used (q= lastp_q...
Definition: avcodec.h:795
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:393
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
int me_cmp
motion estimation comparison function
Definition: avcodec.h:912
static AVFrame * frame
uint8_t * data
Definition: packet.h:355
#define FF_CMP_CHROMA
Definition: avcodec.h:947
#define AV_INPUT_BUFFER_MIN_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:222
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, xavs_nal_t *nals, int nnal)
Definition: libxavs.c:84
int b_frame_strategy
Definition: libxavs.c:60
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:388
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:816
#define END_OF_STREAM
Definition: libxavs.c:36
#define AVERROR(e)
Definition: error.h:43
int qmax
maximum quantizer
Definition: avcodec.h:1375
static av_cold int XAVS_init(AVCodecContext *avctx)
Definition: libxavs.c:241
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int b_bias
Definition: libxavs.c:52
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level...
Definition: log.c:424
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:606
const char * name
Name of the codec implementation.
Definition: codec.h:197
float i_quant_factor
qscale factor between P- and I-frames If > 0 then the last P-frame quantizer will be used (q = lastp_...
Definition: avcodec.h:831
int mixed_refs
Definition: libxavs.c:59
int fast_pskip
Definition: libxavs.c:56
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:361
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1389
int direct_pred
Definition: libxavs.c:54
common internal API header
int refs
number of reference frames
Definition: avcodec.h:1114
static const AVCodecDefault xavs_defaults[]
Definition: libxavs.c:464
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:383
int out_frame_count
Definition: libxavs.c:66
int noise_reduction
Definition: libxavs.c:63
int width
picture width / height.
Definition: avcodec.h:699
attribute_deprecated int noise_reduction
Definition: avcodec.h:1044
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:312
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1982
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:423
static const AVClass xavs_class
Definition: libxavs.c:457
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:1382
xavs_param_t params
Definition: libxavs.c:44
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:1785
static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libxavs.c:119
int motion_est
Definition: libxavs.c:57
float cplxblur
Definition: libxavs.c:53
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
Libavcodec external API header.
attribute_deprecated int scenechange_threshold
Definition: avcodec.h:1040
int mbtree
Definition: libxavs.c:58
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
attribute_deprecated int b_frame_strategy
Definition: avcodec.h:800
main external API structure.
Definition: avcodec.h:526
long long int64_t
Definition: coverity.c:34
int qmin
minimum quantizer
Definition: avcodec.h:1368
int extradata_size
Definition: avcodec.h:628
int scenechange_threshold
Definition: libxavs.c:62
int sei_size
Definition: libxavs.c:48
Describe the class of an AVClass context structure.
Definition: log.h:67
attribute_deprecated int chromaoffset
Definition: avcodec.h:1119
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:1360
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
uint8_t level
Definition: svq3.c:210
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:329
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:721
int cqp
Definition: libxavs.c:51
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
Bi-dir predicted.
Definition: avutil.h:276
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1776
int den
Denominator.
Definition: rational.h:60
int trellis
trellis RD quantization
Definition: avcodec.h:1475
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
void * priv_data
Definition: avcodec.h:553
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
AVCodec ff_libxavs_encoder
Definition: libxavs.c:469
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:378
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
float crf
Definition: libxavs.c:50
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: packet.h:354
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1217
#define av_freep(p)
int64_t * pts_buffer
Definition: libxavs.c:65
#define OFFSET(x)
Definition: libxavs.c:427
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: packet.h:332
int aud
Definition: libxavs.c:55
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:988
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:348
Predicted.
Definition: avutil.h:275
xavs_picture_t pic
Definition: libxavs.c:46
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1404
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:190
int keyint_min
minimum GOP size
Definition: avcodec.h:1107