Libav
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 Libav.
6  *
7  * Libav 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  * Libav 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 Libav; 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 "libavutil/internal.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 
35 #define END_OF_STREAM 0x001
36 
37 #define XAVS_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
38 #define XAVS_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
39 #define XAVS_PART_B8X8 0x100 /* Analyze b16x8, b*/
40 
41 typedef struct XavsContext {
42  AVClass *class;
43  xavs_param_t params;
44  xavs_t *enc;
45  xavs_picture_t pic;
47  int sei_size;
49  float crf;
50  int cqp;
51  int b_bias;
52  float cplxblur;
54  int aud;
57  int mbtree;
63 
64  int64_t *pts_buffer;
66 } XavsContext;
67 
68 static void XAVS_log(void *p, int level, const char *fmt, va_list args)
69 {
70  static const int level_map[] = {
71  [XAVS_LOG_ERROR] = AV_LOG_ERROR,
72  [XAVS_LOG_WARNING] = AV_LOG_WARNING,
73  [XAVS_LOG_INFO] = AV_LOG_INFO,
74  [XAVS_LOG_DEBUG] = AV_LOG_DEBUG
75  };
76 
77  if (level < 0 || level > XAVS_LOG_DEBUG)
78  return;
79 
80  av_vlog(p, level_map[level], fmt, args);
81 }
82 
84  xavs_nal_t *nals, int nnal)
85 {
86  XavsContext *x4 = ctx->priv_data;
87  uint8_t *p;
88  int i, s, ret, size = x4->sei_size + AV_INPUT_BUFFER_MIN_SIZE;
89 
90  if (!nnal)
91  return 0;
92 
93  for (i = 0; i < nnal; i++)
94  size += nals[i].i_payload;
95 
96  if ((ret = ff_alloc_packet(pkt, size)) < 0) {
97  av_log(ctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", size);
98  return ret;
99  }
100  p = pkt->data;
101 
102  /* Write the SEI as part of the first frame. */
103  if (x4->sei_size > 0 && nnal > 0) {
104  memcpy(p, x4->sei, x4->sei_size);
105  p += x4->sei_size;
106  x4->sei_size = 0;
107  }
108 
109  for (i = 0; i < nnal; i++) {
110  s = xavs_nal_encode(p, &size, 1, nals + i);
111  if (s < 0)
112  return -1;
113  p += s;
114  }
115  pkt->size = p - pkt->data;
116 
117  return 1;
118 }
119 
120 static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt,
121  const AVFrame *frame, int *got_packet)
122 {
123  XavsContext *x4 = avctx->priv_data;
124  xavs_nal_t *nal;
125  int nnal, i, ret;
126  xavs_picture_t pic_out;
127  uint8_t *sd;
128 
129  x4->pic.img.i_csp = XAVS_CSP_I420;
130  x4->pic.img.i_plane = 3;
131 
132  if (frame) {
133  for (i = 0; i < 3; i++) {
134  x4->pic.img.plane[i] = frame->data[i];
135  x4->pic.img.i_stride[i] = frame->linesize[i];
136  }
137 
138  x4->pic.i_pts = frame->pts;
139  x4->pic.i_type = XAVS_TYPE_AUTO;
140  x4->pts_buffer[avctx->frame_number % (avctx->max_b_frames+1)] = frame->pts;
141  }
142 
143  if (xavs_encoder_encode(x4->enc, &nal, &nnal,
144  frame? &x4->pic: NULL, &pic_out) < 0)
145  return -1;
146 
147  ret = encode_nals(avctx, pkt, nal, nnal);
148 
149  if (ret < 0)
150  return -1;
151 
152  if (!ret) {
153  if (!frame && !(x4->end_of_stream)) {
154  if ((ret = ff_alloc_packet(pkt, 4)) < 0)
155  return ret;
156 
157  pkt->data[0] = 0x0;
158  pkt->data[1] = 0x0;
159  pkt->data[2] = 0x01;
160  pkt->data[3] = 0xb1;
161  pkt->dts = 2*x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)] -
162  x4->pts_buffer[(x4->out_frame_count-2)%(avctx->max_b_frames+1)];
164  *got_packet = 1;
165  }
166  return 0;
167  }
168 
169 #if FF_API_CODED_FRAME
171  avctx->coded_frame->pts = pic_out.i_pts;
173 #endif
174  pkt->pts = pic_out.i_pts;
175  if (avctx->has_b_frames) {
176  if (!x4->out_frame_count)
177  pkt->dts = pkt->pts - (x4->pts_buffer[1] - x4->pts_buffer[0]);
178  else
179  pkt->dts = x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)];
180  } else
181  pkt->dts = pkt->pts;
182 
183 #if FF_API_CODED_FRAME
185  switch (pic_out.i_type) {
186  case XAVS_TYPE_IDR:
187  case XAVS_TYPE_I:
189  break;
190  case XAVS_TYPE_P:
192  break;
193  case XAVS_TYPE_B:
194  case XAVS_TYPE_BREF:
196  break;
197  }
199 #endif
200 
201  /* There is no IDR frame in AVS JiZhun */
202  /* Sequence header is used as a flag */
203  if (pic_out.i_type == XAVS_TYPE_I) {
204 #if FF_API_CODED_FRAME
206  avctx->coded_frame->key_frame = 1;
208 #endif
209  pkt->flags |= AV_PKT_FLAG_KEY;
210  }
211 
212 #if FF_API_CODED_FRAME
214  avctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
216 #endif
217 
218  sd = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR, sizeof(int));
219  if (!sd)
220  return AVERROR(ENOMEM);
221  *(int *)sd = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
222 
223  x4->out_frame_count++;
224  *got_packet = ret;
225  return 0;
226 }
227 
229 {
230  XavsContext *x4 = avctx->priv_data;
231 
232  av_freep(&avctx->extradata);
233  av_free(x4->sei);
234  av_freep(&x4->pts_buffer);
235 
236  if (x4->enc)
237  xavs_encoder_close(x4->enc);
238 
239  return 0;
240 }
241 
242 static av_cold int XAVS_init(AVCodecContext *avctx)
243 {
244  XavsContext *x4 = avctx->priv_data;
245 
246  x4->sei_size = 0;
247  xavs_param_default(&x4->params);
248 
249  x4->params.pf_log = XAVS_log;
250  x4->params.p_log_private = avctx;
251  x4->params.i_keyint_max = avctx->gop_size;
252  if (avctx->bit_rate) {
253  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
254  x4->params.rc.i_rc_method = XAVS_RC_ABR;
255  }
256  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
257  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
258  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
259  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
260  x4->params.rc.b_stat_read = 1;
261  } else {
262  if (x4->crf >= 0) {
263  x4->params.rc.i_rc_method = XAVS_RC_CRF;
264  x4->params.rc.f_rf_constant = x4->crf;
265  } else if (x4->cqp >= 0) {
266  x4->params.rc.i_rc_method = XAVS_RC_CQP;
267  x4->params.rc.i_qp_constant = x4->cqp;
268  }
269  }
270 
271  if (x4->aud >= 0)
272  x4->params.b_aud = x4->aud;
273  if (x4->mbtree >= 0)
274  x4->params.rc.b_mb_tree = x4->mbtree;
275  if (x4->direct_pred >= 0)
276  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
277  if (x4->fast_pskip >= 0)
278  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
279  if (x4->motion_est >= 0)
280  x4->params.analyse.i_me_method = x4->motion_est;
281  if (x4->mixed_refs >= 0)
282  x4->params.analyse.b_mixed_references = x4->mixed_refs;
283  if (x4->b_bias != INT_MIN)
284  x4->params.i_bframe_bias = x4->b_bias;
285  if (x4->cplxblur >= 0)
286  x4->params.rc.f_complexity_blur = x4->cplxblur;
287 
288 #if FF_API_MOTION_EST
290  if (x4->motion_est < 0) {
291  switch (avctx->me_method) {
292  case ME_EPZS:
293  x4->params.analyse.i_me_method = XAVS_ME_DIA;
294  break;
295  case ME_HEX:
296  x4->params.analyse.i_me_method = XAVS_ME_HEX;
297  break;
298  case ME_UMH:
299  x4->params.analyse.i_me_method = XAVS_ME_UMH;
300  break;
301  case ME_FULL:
302  x4->params.analyse.i_me_method = XAVS_ME_ESA;
303  break;
304  case ME_TESA:
305  x4->params.analyse.i_me_method = XAVS_ME_TESA;
306  break;
307  default:
308  x4->params.analyse.i_me_method = XAVS_ME_HEX;
309  }
310  }
312 #endif
313 
314  x4->params.i_bframe = avctx->max_b_frames;
315  /* cabac is not included in AVS JiZhun Profile */
316  x4->params.b_cabac = 0;
317 
318 #if FF_API_PRIVATE_OPT
320  if (avctx->b_frame_strategy)
321  x4->b_frame_strategy = avctx->b_frame_strategy;
323 #endif
324 
325  x4->params.i_bframe_adaptive = x4->b_frame_strategy;
326 
327  avctx->has_b_frames = !!avctx->max_b_frames;
328 
329  /* AVS doesn't allow B picture as reference */
330  /* The max allowed reference frame number of B is 2 */
331  x4->params.i_keyint_min = avctx->keyint_min;
332  if (x4->params.i_keyint_min > x4->params.i_keyint_max)
333  x4->params.i_keyint_min = x4->params.i_keyint_max;
334 
335 #if FF_API_PRIVATE_OPT
337  if (avctx->scenechange_threshold)
340 #endif
341 
342  x4->params.i_scenecut_threshold = x4->scenechange_threshold;
343 
344  // x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
345 
346  x4->params.rc.i_qp_min = avctx->qmin;
347  x4->params.rc.i_qp_max = avctx->qmax;
348  x4->params.rc.i_qp_step = avctx->max_qdiff;
349 
350  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
351  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
352 
353  x4->params.i_frame_reference = avctx->refs;
354 
355  x4->params.i_width = avctx->width;
356  x4->params.i_height = avctx->height;
357  x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
358  x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
359  /* This is only used for counting the fps */
360  x4->params.i_fps_num = avctx->time_base.den;
361  x4->params.i_fps_den = avctx->time_base.num;
362  x4->params.analyse.inter = XAVS_ANALYSE_I8x8 |XAVS_ANALYSE_PSUB16x16| XAVS_ANALYSE_BSUB16x16;
363 
364  x4->params.analyse.i_me_range = avctx->me_range;
365  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
366 
367  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
368  /* AVS P2 only enables 8x8 transform */
369  x4->params.analyse.b_transform_8x8 = 1; //avctx->flags2 & AV_CODEC_FLAG2_8X8DCT;
370 
371  x4->params.analyse.i_trellis = avctx->trellis;
372 
373 #if FF_API_PRIVATE_OPT
375  if (avctx->noise_reduction >= 0)
376  x4->noise_reduction = avctx->noise_reduction;
378 #endif
379 
380  x4->params.analyse.i_noise_reduction = x4->noise_reduction;
381 
382  if (avctx->level > 0)
383  x4->params.i_level_idc = avctx->level;
384 
385  if (avctx->bit_rate > 0)
386  x4->params.rc.f_rate_tolerance =
387  (float)avctx->bit_rate_tolerance / avctx->bit_rate;
388 
389  if ((avctx->rc_buffer_size) &&
390  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
391  x4->params.rc.f_vbv_buffer_init =
392  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
393  } else
394  x4->params.rc.f_vbv_buffer_init = 0.9;
395 
396  /* TAG:do we have MB tree RC method */
397  /* what is the RC method we are now using? Default NO */
398  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
399  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
400 
401 #if FF_API_PRIVATE_OPT
403  if (avctx->chromaoffset)
404  x4->chroma_offset = avctx->chromaoffset;
406 #endif
407 
408  x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
409 
410  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
411  x4->params.i_log_level = XAVS_LOG_DEBUG;
412  x4->params.i_threads = avctx->thread_count;
413  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
414 
415  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
416  x4->params.b_repeat_headers = 0;
417 
418  x4->enc = xavs_encoder_open(&x4->params);
419  if (!x4->enc)
420  return -1;
421 
422  if (!(x4->pts_buffer = av_mallocz((avctx->max_b_frames+1) * sizeof(*x4->pts_buffer))))
423  return AVERROR(ENOMEM);
424 
425  /* TAG: Do we have GLOBAL HEADER in AVS */
426  /* We Have PPS and SPS in AVS */
427  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
428  xavs_nal_t *nal;
429  int nnal, s, i, size;
430  uint8_t *p;
431 
432  s = xavs_encoder_headers(x4->enc, &nal, &nnal);
433 
434  avctx->extradata = p = av_malloc(s);
435  for (i = 0; i < nnal; i++) {
436  /* Don't put the SEI in extradata. */
437  if (nal[i].i_type == NAL_SEI) {
438  x4->sei = av_malloc( 5 + nal[i].i_payload * 4 / 3 );
439  if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nal + i) < 0)
440  return -1;
441 
442  continue;
443  }
444  size = xavs_nal_encode(p, &s, 1, nal + i);
445  if (size < 0)
446  return -1;
447  p += size;
448  }
449  avctx->extradata_size = p - avctx->extradata;
450  }
451  return 0;
452 }
453 
454 #define OFFSET(x) offsetof(XavsContext, x)
455 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
456 static const AVOption options[] = {
457  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE },
458  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE },
459  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
460  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE},
461  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
462  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
463  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
464  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
465  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
466  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
467  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
468  { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE },
469  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
470  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, XAVS_ME_TESA, VE, "motion-est"},
471  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
472  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
473  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
474  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
475  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
476  { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, VE},
477  { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, VE},
478  { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE},
479  { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE},
480 
481  { NULL },
482 };
483 
484 static const AVClass class = {
485  .class_name = "libxavs",
486  .item_name = av_default_item_name,
487  .option = options,
489 };
490 
491 static const AVCodecDefault xavs_defaults[] = {
492  { "b", "0" },
493  { NULL },
494 };
495 
497  .name = "libxavs",
498  .long_name = NULL_IF_CONFIG_SMALL("libxavs Chinese AVS (Audio Video Standard)"),
499  .type = AVMEDIA_TYPE_VIDEO,
500  .id = AV_CODEC_ID_CAVS,
501  .priv_data_size = sizeof(XavsContext),
502  .init = XAVS_init,
503  .encode2 = XAVS_frame,
504  .close = XAVS_close,
507  .priv_class = &class,
508  .defaults = xavs_defaults,
509 };
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:62
#define VE
Definition: libxavs.c:455
int chroma_offset
Definition: libxavs.c:60
int size
This structure describes decoded (raw) audio or video data.
Definition: frame.h:140
AVOption.
Definition: opt.h:234
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:776
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2323
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:130
memory handling functions
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:1679
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2426
xavs_t * enc
Definition: libxavs.c:44
int num
numerator
Definition: rational.h:44
int size
Definition: avcodec.h:1347
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
enhanced predictive zonal search
Definition: avcodec.h:670
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:1804
int end_of_stream
Definition: libxavs.c:48
static void XAVS_log(void *p, int level, const char *fmt, va_list args)
Definition: libxavs.c:68
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:905
AVCodec.
Definition: avcodec.h:3120
static const AVOption options[]
Definition: libxavs.c:456
attribute_deprecated int me_method
This option does nothing.
Definition: avcodec.h:1628
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1535
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
Definition: mem.c:202
static av_cold int XAVS_close(AVCodecContext *avctx)
Definition: libxavs.c:228
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:39
#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: avcodec.h:863
int bit_rate_tolerance
number of bits the bitstream is allowed to diverge from the reference.
Definition: avcodec.h:1481
uint8_t * sei
Definition: libxavs.c:46
uint8_t
#define av_cold
Definition: attributes.h:66
AVOptions.
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:1913
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:1688
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:211
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1523
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1811
uint8_t * data
Definition: avcodec.h:1346
#define FF_CMP_CHROMA
Definition: avcodec.h:1843
#define AV_INPUT_BUFFER_MIN_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:645
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, xavs_nal_t *nals, int nnal)
Definition: libxavs.c:83
int b_frame_strategy
Definition: libxavs.c:59
hexagon based search
Definition: avcodec.h:672
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1378
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:124
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1715
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
Definition: mem.c:190
#define END_OF_STREAM
Definition: libxavs.c:35
#define AVERROR(e)
Definition: error.h:43
int qmax
maximum quantizer
Definition: avcodec.h:2337
static av_cold int XAVS_init(AVCodecContext *avctx)
Definition: libxavs.c:242
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:148
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:145
int b_bias
Definition: libxavs.c:51
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1503
int rc_max_rate
maximum bitrate
Definition: avcodec.h:2387
const char * name
Name of the codec implementation.
Definition: avcodec.h:3127
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:1730
int mixed_refs
Definition: libxavs.c:58
int fast_pskip
Definition: libxavs.c:55
transformed exhaustive search algorithm
Definition: avcodec.h:674
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1352
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2364
int direct_pred
Definition: libxavs.c:53
common internal API header
int refs
number of reference frames
Definition: avcodec.h:2071
static const AVCodecDefault xavs_defaults[]
Definition: libxavs.c:491
int bit_rate
the average bitrate
Definition: avcodec.h:1473
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:201
int out_frame_count
Definition: libxavs.c:65
int noise_reduction
Definition: libxavs.c:62
int width
picture width / height.
Definition: avcodec.h:1580
attribute_deprecated int noise_reduction
Definition: avcodec.h:1979
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:767
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:751
int level
level
Definition: avcodec.h:2970
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:239
int ff_alloc_packet(AVPacket *avpkt, int size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1211
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2344
xavs_param_t params
Definition: libxavs.c:43
LIBAVUTIL_VERSION_INT
Definition: eval.c:55
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2806
if(ac->has_optimized_func)
static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libxavs.c:120
NULL
Definition: eval.c:55
int motion_est
Definition: libxavs.c:56
float cplxblur
Definition: libxavs.c:52
#define AV_LOG_INFO
Standard information.
Definition: log.h:135
Libavcodec external API header.
attribute_deprecated int scenechange_threshold
Definition: avcodec.h:1975
int mbtree
Definition: libxavs.c:57
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:158
attribute_deprecated int b_frame_strategy
Definition: avcodec.h:1699
av_default_item_name
Definition: dnxhdenc.c:55
main external API structure.
Definition: avcodec.h:1409
int qmin
minimum quantizer
Definition: avcodec.h:2330
int extradata_size
Definition: avcodec.h:1524
int scenechange_threshold
Definition: libxavs.c:61
int sei_size
Definition: libxavs.c:47
Describe the class of an AVClass context structure.
Definition: log.h:34
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:195
attribute_deprecated int chromaoffset
Definition: avcodec.h:2076
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2322
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:257
This side data contains an integer value representing the quality factor of the compressed frame...
Definition: avcodec.h:1273
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:146
uint8_t level
Definition: svq3.c:204
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:784
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1606
int cqp
Definition: libxavs.c:50
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:59
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:77
common internal api header.
Bi-dir predicted.
Definition: avutil.h:262
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2797
int den
denominator
Definition: rational.h:45
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:582
int trellis
trellis RD quantization
Definition: avcodec.h:2486
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:755
void * priv_data
Definition: avcodec.h:1451
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:78
uneven multi-hexagon search
Definition: avcodec.h:673
AVCodec ff_libxavs_encoder
Definition: libxavs.c:496
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:196
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:214
float crf
Definition: libxavs.c:49
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1345
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2183
int64_t * pts_buffer
Definition: libxavs.c:64
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
Definition: avpacket.c:263
#define OFFSET(x)
Definition: libxavs.c:454
AVPixelFormat
Pixel format.
Definition: pixfmt.h:57
This structure stores compressed data.
Definition: avcodec.h:1323
int aud
Definition: libxavs.c:54
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:1884
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:211
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1339
Predicted.
Definition: avutil.h:261
xavs_picture_t pic
Definition: libxavs.c:45
int keyint_min
minimum GOP size
Definition: avcodec.h:2064