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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 "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;
59 
60  int64_t *pts_buffer;
62 } XavsContext;
63 
64 static void XAVS_log(void *p, int level, const char *fmt, va_list args)
65 {
66  static const int level_map[] = {
67  [XAVS_LOG_ERROR] = AV_LOG_ERROR,
68  [XAVS_LOG_WARNING] = AV_LOG_WARNING,
69  [XAVS_LOG_INFO] = AV_LOG_INFO,
70  [XAVS_LOG_DEBUG] = AV_LOG_DEBUG
71  };
72 
73  if (level < 0 || level > XAVS_LOG_DEBUG)
74  return;
75 
76  av_vlog(p, level_map[level], fmt, args);
77 }
78 
80  xavs_nal_t *nals, int nnal)
81 {
82  XavsContext *x4 = ctx->priv_data;
83  uint8_t *p;
84  int i, s, ret, size = x4->sei_size + AV_INPUT_BUFFER_MIN_SIZE;
85 
86  if (!nnal)
87  return 0;
88 
89  for (i = 0; i < nnal; i++)
90  size += nals[i].i_payload;
91 
92  if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
93  return ret;
94  p = pkt->data;
95 
96  /* Write the SEI as part of the first frame. */
97  if (x4->sei_size > 0 && nnal > 0) {
98  memcpy(p, x4->sei, x4->sei_size);
99  p += x4->sei_size;
100  x4->sei_size = 0;
101  }
102 
103  for (i = 0; i < nnal; i++) {
104  s = xavs_nal_encode(p, &size, 1, nals + i);
105  if (s < 0)
106  return -1;
107  p += s;
108  }
109  pkt->size = p - pkt->data;
110 
111  return 1;
112 }
113 
114 static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt,
115  const AVFrame *frame, int *got_packet)
116 {
117  XavsContext *x4 = avctx->priv_data;
118  xavs_nal_t *nal;
119  int nnal, i, ret;
120  xavs_picture_t pic_out;
121  int pict_type;
122 
123  x4->pic.img.i_csp = XAVS_CSP_I420;
124  x4->pic.img.i_plane = 3;
125 
126  if (frame) {
127  for (i = 0; i < 3; i++) {
128  x4->pic.img.plane[i] = frame->data[i];
129  x4->pic.img.i_stride[i] = frame->linesize[i];
130  }
131 
132  x4->pic.i_pts = frame->pts;
133  x4->pic.i_type = XAVS_TYPE_AUTO;
134  x4->pts_buffer[avctx->frame_number % (avctx->max_b_frames+1)] = frame->pts;
135  }
136 
137  if (xavs_encoder_encode(x4->enc, &nal, &nnal,
138  frame? &x4->pic: NULL, &pic_out) < 0)
139  return -1;
140 
141  ret = encode_nals(avctx, pkt, nal, nnal);
142 
143  if (ret < 0)
144  return -1;
145 
146  if (!ret) {
147  if (!frame && !(x4->end_of_stream)) {
148  if ((ret = ff_alloc_packet2(avctx, pkt, 4, 0)) < 0)
149  return ret;
150 
151  pkt->data[0] = 0x0;
152  pkt->data[1] = 0x0;
153  pkt->data[2] = 0x01;
154  pkt->data[3] = 0xb1;
155  pkt->dts = 2*x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)] -
156  x4->pts_buffer[(x4->out_frame_count-2)%(avctx->max_b_frames+1)];
158  *got_packet = 1;
159  }
160  return 0;
161  }
162 
163 #if FF_API_CODED_FRAME
165  avctx->coded_frame->pts = pic_out.i_pts;
167 #endif
168  pkt->pts = pic_out.i_pts;
169  if (avctx->has_b_frames) {
170  if (!x4->out_frame_count)
171  pkt->dts = pkt->pts - (x4->pts_buffer[1] - x4->pts_buffer[0]);
172  else
173  pkt->dts = x4->pts_buffer[(x4->out_frame_count-1)%(avctx->max_b_frames+1)];
174  } else
175  pkt->dts = pkt->pts;
176 
177  switch (pic_out.i_type) {
178  case XAVS_TYPE_IDR:
179  case XAVS_TYPE_I:
180  pict_type = AV_PICTURE_TYPE_I;
181  break;
182  case XAVS_TYPE_P:
183  pict_type = AV_PICTURE_TYPE_P;
184  break;
185  case XAVS_TYPE_B:
186  case XAVS_TYPE_BREF:
187  pict_type = AV_PICTURE_TYPE_B;
188  break;
189  default:
190  pict_type = AV_PICTURE_TYPE_NONE;
191  }
192 #if FF_API_CODED_FRAME
194  avctx->coded_frame->pict_type = pict_type;
196 #endif
197 
198  /* There is no IDR frame in AVS JiZhun */
199  /* Sequence header is used as a flag */
200  if (pic_out.i_type == XAVS_TYPE_I) {
201 #if FF_API_CODED_FRAME
203  avctx->coded_frame->key_frame = 1;
205 #endif
206  pkt->flags |= AV_PKT_FLAG_KEY;
207  }
208 
209 #if FF_API_CODED_FRAME
211  avctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
213 #endif
214 
215  ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
216 
217  x4->out_frame_count++;
218  *got_packet = ret;
219  return 0;
220 }
221 
223 {
224  XavsContext *x4 = avctx->priv_data;
225 
226  av_freep(&avctx->extradata);
227  av_freep(&x4->sei);
228  av_freep(&x4->pts_buffer);
229 
230  if (x4->enc)
231  xavs_encoder_close(x4->enc);
232 
233  return 0;
234 }
235 
236 static av_cold int XAVS_init(AVCodecContext *avctx)
237 {
238  XavsContext *x4 = avctx->priv_data;
239 
240  x4->sei_size = 0;
241  xavs_param_default(&x4->params);
242 
243  x4->params.pf_log = XAVS_log;
244  x4->params.p_log_private = avctx;
245  x4->params.i_keyint_max = avctx->gop_size;
246  if (avctx->bit_rate) {
247  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
248  x4->params.rc.i_rc_method = XAVS_RC_ABR;
249  }
250  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
251  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
252  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
253  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
254  x4->params.rc.b_stat_read = 1;
255  } else {
256  if (x4->crf >= 0) {
257  x4->params.rc.i_rc_method = XAVS_RC_CRF;
258  x4->params.rc.f_rf_constant = x4->crf;
259  } else if (x4->cqp >= 0) {
260  x4->params.rc.i_rc_method = XAVS_RC_CQP;
261  x4->params.rc.i_qp_constant = x4->cqp;
262  }
263  }
264 
265  if (x4->aud >= 0)
266  x4->params.b_aud = x4->aud;
267  if (x4->mbtree >= 0)
268  x4->params.rc.b_mb_tree = x4->mbtree;
269  if (x4->direct_pred >= 0)
270  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
271  if (x4->fast_pskip >= 0)
272  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
273  if (x4->motion_est >= 0)
274  x4->params.analyse.i_me_method = x4->motion_est;
275  if (x4->mixed_refs >= 0)
276  x4->params.analyse.b_mixed_references = x4->mixed_refs;
277  if (x4->b_bias != INT_MIN)
278  x4->params.i_bframe_bias = x4->b_bias;
279  if (x4->cplxblur >= 0)
280  x4->params.rc.f_complexity_blur = x4->cplxblur;
281 
282 #if FF_API_MOTION_EST
284  if (x4->motion_est < 0) {
285  switch (avctx->me_method) {
286  case ME_EPZS:
287  x4->params.analyse.i_me_method = XAVS_ME_DIA;
288  break;
289  case ME_HEX:
290  x4->params.analyse.i_me_method = XAVS_ME_HEX;
291  break;
292  case ME_UMH:
293  x4->params.analyse.i_me_method = XAVS_ME_UMH;
294  break;
295  case ME_FULL:
296  x4->params.analyse.i_me_method = XAVS_ME_ESA;
297  break;
298  case ME_TESA:
299  x4->params.analyse.i_me_method = XAVS_ME_TESA;
300  break;
301  default:
302  x4->params.analyse.i_me_method = XAVS_ME_HEX;
303  }
304  }
306 #endif
307 
308  x4->params.i_bframe = avctx->max_b_frames;
309  /* cabac is not included in AVS JiZhun Profile */
310  x4->params.b_cabac = 0;
311 
312  x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
313 
314  avctx->has_b_frames = !!avctx->max_b_frames;
315 
316  /* AVS doesn't allow B picture as reference */
317  /* The max allowed reference frame number of B is 2 */
318  x4->params.i_keyint_min = avctx->keyint_min;
319  if (x4->params.i_keyint_min > x4->params.i_keyint_max)
320  x4->params.i_keyint_min = x4->params.i_keyint_max;
321 
322  x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
323 
324  // x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
325 
326  x4->params.rc.i_qp_min = avctx->qmin;
327  x4->params.rc.i_qp_max = avctx->qmax;
328  x4->params.rc.i_qp_step = avctx->max_qdiff;
329 
330  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
331  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
332 
333  x4->params.i_frame_reference = avctx->refs;
334 
335  x4->params.i_width = avctx->width;
336  x4->params.i_height = avctx->height;
337  x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
338  x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
339  /* This is only used for counting the fps */
340  x4->params.i_fps_num = avctx->time_base.den;
341  x4->params.i_fps_den = avctx->time_base.num;
342  x4->params.analyse.inter = XAVS_ANALYSE_I8x8 |XAVS_ANALYSE_PSUB16x16| XAVS_ANALYSE_BSUB16x16;
343 
344  x4->params.analyse.i_me_range = avctx->me_range;
345  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
346 
347  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
348  /* AVS P2 only enables 8x8 transform */
349  x4->params.analyse.b_transform_8x8 = 1; //avctx->flags2 & AV_CODEC_FLAG2_8X8DCT;
350 
351  x4->params.analyse.i_trellis = avctx->trellis;
352  x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
353 
354  if (avctx->level > 0)
355  x4->params.i_level_idc = avctx->level;
356 
357  if (avctx->bit_rate > 0)
358  x4->params.rc.f_rate_tolerance =
359  (float)avctx->bit_rate_tolerance / avctx->bit_rate;
360 
361  if ((avctx->rc_buffer_size) &&
362  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
363  x4->params.rc.f_vbv_buffer_init =
364  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
365  } else
366  x4->params.rc.f_vbv_buffer_init = 0.9;
367 
368  /* TAG:do we have MB tree RC method */
369  /* what is the RC method we are now using? Default NO */
370  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
371  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
372  x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
373 
374  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
375  x4->params.i_log_level = XAVS_LOG_DEBUG;
376  x4->params.i_threads = avctx->thread_count;
377  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
378 
379  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
380  x4->params.b_repeat_headers = 0;
381 
382  x4->enc = xavs_encoder_open(&x4->params);
383  if (!x4->enc)
384  return -1;
385 
386  if (!(x4->pts_buffer = av_mallocz_array((avctx->max_b_frames+1), sizeof(*x4->pts_buffer))))
387  return AVERROR(ENOMEM);
388 
389  /* TAG: Do we have GLOBAL HEADER in AVS */
390  /* We Have PPS and SPS in AVS */
391  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER && 0) {
392  xavs_nal_t *nal;
393  int nnal, s, i, size;
394  uint8_t *p;
395 
396  s = xavs_encoder_headers(x4->enc, &nal, &nnal);
397 
398  avctx->extradata = p = av_malloc(s);
399  for (i = 0; i < nnal; i++) {
400  /* Don't put the SEI in extradata. */
401  if (nal[i].i_type == NAL_SEI) {
402  x4->sei = av_malloc( 5 + nal[i].i_payload * 4 / 3 );
403  if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nal + i) < 0)
404  return -1;
405 
406  continue;
407  }
408  size = xavs_nal_encode(p, &s, 1, nal + i);
409  if (size < 0)
410  return -1;
411  p += size;
412  }
413  avctx->extradata_size = p - avctx->extradata;
414  }
415  return 0;
416 }
417 
418 #define OFFSET(x) offsetof(XavsContext, x)
419 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
420 static const AVOption options[] = {
421  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
422  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE },
423  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
424  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
425  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
426  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
427  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
428  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
429  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
430  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
431  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
432  { "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 },
433  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 1, VE},
434  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, XAVS_ME_TESA, VE, "motion-est"},
435  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
436  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
437  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
438  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
439  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = XAVS_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
440 
441  { NULL },
442 };
443 
444 static const AVClass xavs_class = {
445  .class_name = "libxavs",
446  .item_name = av_default_item_name,
447  .option = options,
448  .version = LIBAVUTIL_VERSION_INT,
449 };
450 
451 static const AVCodecDefault xavs_defaults[] = {
452  { "b", "0" },
453  { NULL },
454 };
455 
457  .name = "libxavs",
458  .long_name = NULL_IF_CONFIG_SMALL("libxavs Chinese AVS (Audio Video Standard)"),
459  .type = AVMEDIA_TYPE_VIDEO,
460  .id = AV_CODEC_ID_CAVS,
461  .priv_data_size = sizeof(XavsContext),
462  .init = XAVS_init,
463  .encode2 = XAVS_frame,
464  .close = XAVS_close,
467  .priv_class = &xavs_class,
468  .defaults = xavs_defaults,
469 };
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:631
#define VE
Definition: libxavs.c:419
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
AVOption.
Definition: opt.h:255
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:606
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:776
const char * fmt
Definition: avisynth_c.h:632
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2540
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:62
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:1780
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2643
xavs_t * enc
Definition: libxavs.c:44
int num
numerator
Definition: rational.h:44
int size
Definition: avcodec.h:1424
enhanced predictive zonal search
Definition: avcodec.h:668
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:1902
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:64
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:932
AVCodec.
Definition: avcodec.h:3472
Definition: h264.h:117
static const AVOption options[]
Definition: libxavs.c:420
attribute_deprecated int me_method
This option does nothing.
Definition: avcodec.h:1729
int scenechange_threshold
scene change detection threshold 0 is default, larger means fewer detected scene changes.
Definition: avcodec.h:2079
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1631
Undefined.
Definition: avutil.h:265
static av_cold int XAVS_close(AVCodecContext *avctx)
Definition: libxavs.c:222
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: avcodec.h:882
int bit_rate_tolerance
number of bits the bitstream is allowed to diverge from the reference.
Definition: avcodec.h:1575
uint8_t * sei
Definition: libxavs.c:46
uint8_t
#define av_cold
Definition: attributes.h:74
#define av_malloc(s)
AVOptions.
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:2014
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:1789
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:257
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1617
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1909
static AVFrame * frame
#define FF_CMP_CHROMA
Definition: avcodec.h:1943
uint8_t * data
Definition: avcodec.h:1423
ptrdiff_t size
Definition: opengl_enc.c:101
#define AV_INPUT_BUFFER_MIN_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:643
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, xavs_nal_t *nals, int nnal)
Definition: libxavs.c:79
hexagon based search
Definition: avcodec.h:670
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1469
int chromaoffset
chroma qp offset from luma
Definition: avcodec.h:2185
#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:1812
#define END_OF_STREAM
Definition: libxavs.c:35
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
int qmax
maximum quantizer
Definition: avcodec.h:2554
static av_cold int XAVS_init(AVCodecContext *avctx)
Definition: libxavs.c:236
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int b_bias
Definition: libxavs.c:51
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1597
int rc_max_rate
maximum bitrate
Definition: avcodec.h:2604
const char * name
Name of the codec implementation.
Definition: avcodec.h:3479
float i_quant_factor
qscale factor between P and I-frames If > 0 then the last p frame quantizer will be used (q= lastp_q*...
Definition: avcodec.h:1828
int mixed_refs
Definition: libxavs.c:58
int fast_pskip
Definition: libxavs.c:55
transformed exhaustive search algorithm
Definition: avcodec.h:672
Libavcodec external API header.
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1429
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2581
int direct_pred
Definition: libxavs.c:53
common internal API header
int refs
number of reference frames
Definition: avcodec.h:2178
static const AVCodecDefault xavs_defaults[]
Definition: libxavs.c:451
int bit_rate
the average bitrate
Definition: avcodec.h:1567
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
int out_frame_count
Definition: libxavs.c:61
int width
picture width / height.
Definition: avcodec.h:1681
#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 b_frame_strategy
Definition: avcodec.h:1797
int level
level
Definition: avcodec.h:3204
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:283
static const AVClass xavs_class
Definition: libxavs.c:444
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2561
xavs_param_t params
Definition: libxavs.c:43
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3033
static int XAVS_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libxavs.c:114
int motion_est
Definition: libxavs.c:56
float cplxblur
Definition: libxavs.c:52
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
int mbtree
Definition: libxavs.c:57
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
main external API structure.
Definition: avcodec.h:1502
int qmin
minimum quantizer
Definition: avcodec.h:2547
int extradata_size
Definition: avcodec.h:1618
int sei_size
Definition: libxavs.c:47
Describe the class of an AVClass context structure.
Definition: log.h:67
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:370
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1782
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2539
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:209
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
uint8_t level
Definition: svq3.c:150
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:784
int noise_reduction
noise reduction strength
Definition: avcodec.h:2086
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1707
int cqp
Definition: libxavs.c:50
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:79
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:280
Bi-dir predicted.
Definition: avutil.h:268
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:3024
int den
denominator
Definition: rational.h:45
int trellis
trellis RD quantization
Definition: avcodec.h:2713
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:755
void * priv_data
Definition: avcodec.h:1544
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:80
uneven multi-hexagon search
Definition: avcodec.h:671
AVCodec ff_libxavs_encoder
Definition: libxavs.c:456
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:237
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:219
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:1422
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:228
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2293
#define av_freep(p)
int64_t * pts_buffer
Definition: libxavs.c:60
#define OFFSET(x)
Definition: libxavs.c:418
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
This structure stores compressed data.
Definition: avcodec.h:1400
int aud
Definition: libxavs.c:54
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:1985
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1416
Predicted.
Definition: avutil.h:267
xavs_picture_t pic
Definition: libxavs.c:45
int keyint_min
minimum GOP size
Definition: avcodec.h:2171