fate: add more tests for hue video filter
[ffmpeg.git] / libavcodec / vaapi_encode_mpeg2.c
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18
19 #include <va/va.h>
20 #include <va/va_enc_mpeg2.h>
21
22 #include "libavutil/avassert.h"
23
24 #include "avcodec.h"
25 #include "cbs.h"
26 #include "cbs_mpeg2.h"
27 #include "mpeg12.h"
28 #include "vaapi_encode.h"
29
30 typedef struct VAAPIEncodeMPEG2Context {
31     int mb_width;
32     int mb_height;
33
34     int quant_i;
35     int quant_p;
36     int quant_b;
37
38     MPEG2RawSequenceHeader sequence_header;
39     MPEG2RawExtensionData  sequence_extension;
40     MPEG2RawExtensionData  sequence_display_extension;
41     MPEG2RawGroupOfPicturesHeader gop_header;
42     MPEG2RawPictureHeader  picture_header;
43     MPEG2RawExtensionData  picture_coding_extension;
44
45     int64_t last_i_frame;
46
47     unsigned int bit_rate;
48     unsigned int vbv_buffer_size;
49
50     AVRational frame_rate;
51
52     unsigned int f_code_horizontal;
53     unsigned int f_code_vertical;
54
55     CodedBitstreamContext *cbc;
56     CodedBitstreamFragment current_fragment;
57 } VAAPIEncodeMPEG2Context;
58
59
60 static int vaapi_encode_mpeg2_write_fragment(AVCodecContext *avctx,
61                                              char *data, size_t *data_len,
62                                              CodedBitstreamFragment *frag)
63 {
64     VAAPIEncodeContext       *ctx = avctx->priv_data;
65     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
66     int err;
67
68     err = ff_cbs_write_fragment_data(priv->cbc, frag);
69     if (err < 0) {
70         av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
71         return err;
72     }
73
74     if (*data_len < 8 * frag->data_size - frag->data_bit_padding) {
75         av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
76                "%zu < %zu.\n", *data_len,
77                8 * frag->data_size - frag->data_bit_padding);
78         return AVERROR(ENOSPC);
79     }
80
81     memcpy(data, frag->data, frag->data_size);
82     *data_len = 8 * frag->data_size - frag->data_bit_padding;
83
84     return 0;
85 }
86
87 static int vaapi_encode_mpeg2_add_header(AVCodecContext *avctx,
88                                          CodedBitstreamFragment *frag,
89                                          int type, void *header)
90 {
91     VAAPIEncodeContext       *ctx = avctx->priv_data;
92     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
93     int err;
94
95     err = ff_cbs_insert_unit_content(priv->cbc, frag, -1, type, header, NULL);
96     if (err < 0) {
97         av_log(avctx, AV_LOG_ERROR, "Failed to add header: "
98                "type = %d.\n", type);
99         return err;
100     }
101
102     return 0;
103 }
104
105 static int vaapi_encode_mpeg2_write_sequence_header(AVCodecContext *avctx,
106                                                     char *data, size_t *data_len)
107 {
108     VAAPIEncodeContext       *ctx = avctx->priv_data;
109     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
110     CodedBitstreamFragment  *frag = &priv->current_fragment;
111     int err;
112
113     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_SEQUENCE_HEADER,
114                                         &priv->sequence_header);
115     if (err < 0)
116         goto fail;
117
118     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
119                                         &priv->sequence_extension);
120     if (err < 0)
121         goto fail;
122
123     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
124                                         &priv->sequence_display_extension);
125     if (err < 0)
126         goto fail;
127
128     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_GROUP,
129                                         &priv->gop_header);
130     if (err < 0)
131         goto fail;
132
133     err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
134 fail:
135     ff_cbs_fragment_uninit(priv->cbc, frag);
136     return 0;
137 }
138
139 static int vaapi_encode_mpeg2_write_picture_header(AVCodecContext *avctx,
140                                                    VAAPIEncodePicture *pic,
141                                                    char *data, size_t *data_len)
142 {
143     VAAPIEncodeContext       *ctx = avctx->priv_data;
144     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
145     CodedBitstreamFragment  *frag = &priv->current_fragment;
146     int err;
147
148     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_PICTURE,
149                                         &priv->picture_header);
150     if (err < 0)
151         goto fail;
152
153     err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
154                                         &priv->picture_coding_extension);
155     if (err < 0)
156         goto fail;
157
158     err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
159 fail:
160     ff_cbs_fragment_uninit(priv->cbc, frag);
161     return 0;
162 }
163
164 static int vaapi_encode_mpeg2_init_sequence_params(AVCodecContext *avctx)
165 {
166     VAAPIEncodeContext                 *ctx = avctx->priv_data;
167     VAAPIEncodeMPEG2Context           *priv = ctx->priv_data;
168     MPEG2RawSequenceHeader              *sh = &priv->sequence_header;
169     MPEG2RawSequenceExtension           *se = &priv->sequence_extension.data.sequence;
170     MPEG2RawSequenceDisplayExtension   *sde = &priv->sequence_display_extension.data.sequence_display;
171     MPEG2RawGroupOfPicturesHeader     *goph = &priv->gop_header;
172     MPEG2RawPictureHeader               *ph = &priv->picture_header;
173     MPEG2RawPictureCodingExtension     *pce = &priv->picture_coding_extension.data.picture_coding;
174     VAEncSequenceParameterBufferMPEG2 *vseq = ctx->codec_sequence_params;
175     VAEncPictureParameterBufferMPEG2  *vpic = ctx->codec_picture_params;
176     int code, ext_n, ext_d;
177
178     memset(sh,   0, sizeof(*sh));
179     memset(se,   0, sizeof(*se));
180     memset(sde,  0, sizeof(*sde));
181     memset(goph, 0, sizeof(*goph));
182     memset(ph,   0, sizeof(*ph));
183     memset(pce,  0, sizeof(*pce));
184
185
186     if (avctx->bit_rate > 0) {
187         priv->bit_rate = (avctx->bit_rate + 399) / 400;
188     } else {
189         // Unknown (not a bitrate-targetting mode), so just use the
190         // highest value.
191         priv->bit_rate = 0x3fffffff;
192     }
193     if (avctx->rc_buffer_size > 0) {
194         priv->vbv_buffer_size = (avctx->rc_buffer_size + (1 << 14) - 1) >> 14;
195     } else {
196         // Unknown, so guess a value from the bitrate.
197         priv->vbv_buffer_size = priv->bit_rate >> 14;
198     }
199
200     switch (avctx->level) {
201     case 4: // High.
202     case 6: // High 1440.
203         priv->f_code_horizontal = 9;
204         priv->f_code_vertical   = 5;
205         break;
206     case 8: // Main.
207         priv->f_code_horizontal = 8;
208         priv->f_code_vertical   = 5;
209         break;
210     case 10: // Low.
211     default:
212         priv->f_code_horizontal = 7;
213         priv->f_code_vertical   = 4;
214         break;
215     }
216
217
218     // Sequence header
219
220     sh->sequence_header_code = MPEG2_START_SEQUENCE_HEADER;
221
222     sh->horizontal_size_value = avctx->width  & 0xfff;
223     sh->vertical_size_value   = avctx->height & 0xfff;
224
225     if (avctx->sample_aspect_ratio.num != 0 &&
226         avctx->sample_aspect_ratio.den != 0) {
227         AVRational dar = av_div_q(avctx->sample_aspect_ratio,
228                                   (AVRational) { avctx->width, avctx->height });
229
230         if (av_cmp_q(avctx->sample_aspect_ratio, (AVRational) { 1, 1 }) == 0) {
231             sh->aspect_ratio_information = 1;
232         } else if (av_cmp_q(dar, (AVRational) { 3, 4 }) == 0) {
233             sh->aspect_ratio_information = 2;
234         } else if (av_cmp_q(dar, (AVRational) { 9, 16 }) == 0) {
235             sh->aspect_ratio_information = 3;
236         } else if (av_cmp_q(dar, (AVRational) { 100, 221 }) == 0) {
237             sh->aspect_ratio_information = 4;
238         } else {
239             av_log(avctx, AV_LOG_WARNING, "Sample aspect ratio %d:%d is not "
240                    "representable, signalling square pixels instead.\n",
241                    avctx->sample_aspect_ratio.num,
242                    avctx->sample_aspect_ratio.den);
243             sh->aspect_ratio_information = 1;
244         }
245     } else {
246         // Unknown - assume square pixels.
247         sh->aspect_ratio_information = 1;
248     }
249
250     if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
251         priv->frame_rate = avctx->framerate;
252     else
253         priv->frame_rate = av_inv_q(avctx->time_base);
254     ff_mpeg12_find_best_frame_rate(priv->frame_rate,
255                                    &code, &ext_n, &ext_d, 0);
256     sh->frame_rate_code = code;
257
258     sh->bit_rate_value        = priv->bit_rate & 0x3ffff;
259     sh->vbv_buffer_size_value = priv->vbv_buffer_size & 0x3ff;
260
261     sh->constrained_parameters_flag     = 0;
262     sh->load_intra_quantiser_matrix     = 0;
263     sh->load_non_intra_quantiser_matrix = 0;
264
265
266     // Sequence extension
267
268     priv->sequence_extension.extension_start_code = MPEG2_START_EXTENSION;
269     priv->sequence_extension.extension_start_code_identifier =
270         MPEG2_EXTENSION_SEQUENCE;
271
272     se->profile_and_level_indication = avctx->profile << 4 | avctx->level;
273     se->progressive_sequence = 1;
274     se->chroma_format        = 1;
275
276     se->horizontal_size_extension = avctx->width  >> 12;
277     se->vertical_size_extension   = avctx->height >> 12;
278
279     se->bit_rate_extension        = priv->bit_rate >> 18;
280     se->vbv_buffer_size_extension = priv->vbv_buffer_size >> 10;
281     se->low_delay                 = ctx->b_per_p == 0;
282
283     se->frame_rate_extension_n = ext_n;
284     se->frame_rate_extension_d = ext_d;
285
286
287     // Sequence display extension
288
289     priv->sequence_display_extension.extension_start_code =
290         MPEG2_START_EXTENSION;
291     priv->sequence_display_extension.extension_start_code_identifier =
292         MPEG2_EXTENSION_SEQUENCE_DISPLAY;
293
294     sde->video_format = 5;
295     if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
296         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
297         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
298         sde->colour_description       = 1;
299         sde->colour_primaries         = avctx->color_primaries;
300         sde->transfer_characteristics = avctx->color_trc;
301         sde->matrix_coefficients      = avctx->colorspace;
302     } else {
303         sde->colour_description = 0;
304     }
305
306     sde->display_horizontal_size = avctx->width;
307     sde->display_vertical_size   = avctx->height;
308
309
310     // GOP header
311
312     goph->group_start_code = MPEG2_START_GROUP;
313
314     goph->time_code   = 0;
315     goph->closed_gop  = 1;
316     goph->broken_link = 0;
317
318
319     // Defaults for picture header
320
321     ph->picture_start_code = MPEG2_START_PICTURE;
322
323     ph->vbv_delay = 0xffff; // Not currently calculated.
324
325     ph->full_pel_forward_vector  = 0;
326     ph->forward_f_code           = 7;
327     ph->full_pel_backward_vector = 0;
328     ph->forward_f_code           = 7;
329
330
331     // Defaults for picture coding extension
332
333     priv->picture_coding_extension.extension_start_code =
334         MPEG2_START_EXTENSION;
335     priv->picture_coding_extension.extension_start_code_identifier =
336         MPEG2_EXTENSION_PICTURE_CODING;
337
338     pce->intra_dc_precision         = 0;
339     pce->picture_structure          = 3;
340     pce->top_field_first            = 0;
341     pce->frame_pred_frame_dct       = 1;
342     pce->concealment_motion_vectors = 0;
343     pce->q_scale_type               = 0;
344     pce->intra_vlc_format           = 0;
345     pce->alternate_scan             = 0;
346     pce->repeat_first_field         = 0;
347     pce->progressive_frame          = 1;
348     pce->composite_display_flag     = 0;
349
350
351
352     *vseq = (VAEncSequenceParameterBufferMPEG2) {
353         .intra_period = avctx->gop_size,
354         .ip_period    = ctx->b_per_p + 1,
355
356         .picture_width  = avctx->width,
357         .picture_height = avctx->height,
358
359         .bits_per_second          = avctx->bit_rate,
360         .frame_rate               = av_q2d(priv->frame_rate),
361         .aspect_ratio_information = sh->aspect_ratio_information,
362         .vbv_buffer_size          = priv->vbv_buffer_size,
363
364         .sequence_extension.bits = {
365             .profile_and_level_indication = se->profile_and_level_indication,
366             .progressive_sequence         = se->progressive_sequence,
367             .chroma_format                = se->chroma_format,
368             .low_delay                    = se->low_delay,
369             .frame_rate_extension_n       = se->frame_rate_extension_n,
370             .frame_rate_extension_d       = se->frame_rate_extension_d,
371         },
372
373         .new_gop_header = 1,
374         .gop_header.bits = {
375             .time_code   = goph->time_code,
376             .closed_gop  = goph->closed_gop,
377             .broken_link = goph->broken_link,
378         },
379     };
380
381     *vpic = (VAEncPictureParameterBufferMPEG2) {
382         .forward_reference_picture  = VA_INVALID_ID,
383         .backward_reference_picture = VA_INVALID_ID,
384         .reconstructed_picture      = VA_INVALID_ID,
385         .coded_buf                  = VA_INVALID_ID,
386
387         .vbv_delay = 0xffff,
388         .f_code    = { { 15, 15 }, { 15, 15 } },
389
390         .picture_coding_extension.bits = {
391             .intra_dc_precision         = pce->intra_dc_precision,
392             .picture_structure          = pce->picture_structure,
393             .top_field_first            = pce->top_field_first,
394             .frame_pred_frame_dct       = pce->frame_pred_frame_dct,
395             .concealment_motion_vectors = pce->concealment_motion_vectors,
396             .q_scale_type               = pce->q_scale_type,
397             .intra_vlc_format           = pce->intra_vlc_format,
398             .alternate_scan             = pce->alternate_scan,
399             .repeat_first_field         = pce->repeat_first_field,
400             .progressive_frame          = pce->progressive_frame,
401             .composite_display_flag     = pce->composite_display_flag,
402         },
403
404         .composite_display.bits = {
405             .v_axis            = pce->v_axis,
406             .field_sequence    = pce->field_sequence,
407             .sub_carrier       = pce->sub_carrier,
408             .burst_amplitude   = pce->burst_amplitude,
409             .sub_carrier_phase = pce->sub_carrier_phase,
410         },
411     };
412
413     return 0;
414 }
415
416 static int vaapi_encode_mpeg2_init_picture_params(AVCodecContext *avctx,
417                                                  VAAPIEncodePicture *pic)
418 {
419     VAAPIEncodeContext                *ctx = avctx->priv_data;
420     VAAPIEncodeMPEG2Context          *priv = ctx->priv_data;
421     MPEG2RawPictureHeader              *ph = &priv->picture_header;
422     MPEG2RawPictureCodingExtension    *pce = &priv->picture_coding_extension.data.picture_coding;
423     VAEncPictureParameterBufferMPEG2 *vpic = pic->codec_picture_params;
424
425     if (pic->type == PICTURE_TYPE_IDR || pic->type == PICTURE_TYPE_I) {
426         ph->temporal_reference  = 0;
427         ph->picture_coding_type = 1;
428         priv->last_i_frame = pic->display_order;
429     } else {
430         ph->temporal_reference = pic->display_order - priv->last_i_frame;
431         ph->picture_coding_type = pic->type == PICTURE_TYPE_B ? 3 : 2;
432     }
433
434     if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
435         pce->f_code[0][0] = priv->f_code_horizontal;
436         pce->f_code[0][1] = priv->f_code_vertical;
437     } else {
438         pce->f_code[0][0] = 15;
439         pce->f_code[0][1] = 15;
440     }
441     if (pic->type == PICTURE_TYPE_B) {
442         pce->f_code[1][0] = priv->f_code_horizontal;
443         pce->f_code[1][1] = priv->f_code_vertical;
444     } else {
445         pce->f_code[1][0] = 15;
446         pce->f_code[1][1] = 15;
447     }
448
449     vpic->reconstructed_picture = pic->recon_surface;
450     vpic->coded_buf             = pic->output_buffer;
451
452     switch (pic->type) {
453     case PICTURE_TYPE_IDR:
454     case PICTURE_TYPE_I:
455         vpic->picture_type = VAEncPictureTypeIntra;
456         break;
457     case PICTURE_TYPE_P:
458         vpic->picture_type = VAEncPictureTypePredictive;
459         vpic->forward_reference_picture = pic->refs[0]->recon_surface;
460         break;
461     case PICTURE_TYPE_B:
462         vpic->picture_type = VAEncPictureTypeBidirectional;
463         vpic->forward_reference_picture  = pic->refs[0]->recon_surface;
464         vpic->backward_reference_picture = pic->refs[1]->recon_surface;
465         break;
466     default:
467         av_assert0(0 && "invalid picture type");
468     }
469
470     vpic->temporal_reference = ph->temporal_reference;
471     vpic->f_code[0][0]       = pce->f_code[0][0];
472     vpic->f_code[0][1]       = pce->f_code[0][1];
473     vpic->f_code[1][0]       = pce->f_code[1][0];
474     vpic->f_code[1][1]       = pce->f_code[1][1];
475
476     pic->nb_slices = priv->mb_height;
477
478     return 0;
479 }
480
481 static int vaapi_encode_mpeg2_init_slice_params(AVCodecContext *avctx,
482                                                VAAPIEncodePicture *pic,
483                                                VAAPIEncodeSlice *slice)
484 {
485     VAAPIEncodeContext                  *ctx = avctx->priv_data;
486     VAEncSliceParameterBufferMPEG2   *vslice = slice->codec_slice_params;
487     VAAPIEncodeMPEG2Context            *priv = ctx->priv_data;
488     int qp;
489
490     vslice->macroblock_address = priv->mb_width * slice->index;
491     vslice->num_macroblocks    = priv->mb_width;
492
493     switch (pic->type) {
494     case PICTURE_TYPE_IDR:
495     case PICTURE_TYPE_I:
496         qp = priv->quant_i;
497         break;
498     case PICTURE_TYPE_P:
499         qp = priv->quant_p;
500         break;
501     case PICTURE_TYPE_B:
502         qp = priv->quant_b;
503         break;
504     default:
505         av_assert0(0 && "invalid picture type");
506     }
507
508     vslice->quantiser_scale_code = qp;
509     vslice->is_intra_slice = (pic->type == PICTURE_TYPE_IDR ||
510                               pic->type == PICTURE_TYPE_I);
511
512     return 0;
513 }
514
515 static av_cold int vaapi_encode_mpeg2_configure(AVCodecContext *avctx)
516 {
517     VAAPIEncodeContext       *ctx = avctx->priv_data;
518     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
519     int err;
520
521     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_MPEG2VIDEO, avctx);
522     if (err < 0)
523         return err;
524
525     priv->mb_width  = FFALIGN(avctx->width,  16) / 16;
526     priv->mb_height = FFALIGN(avctx->height, 16) / 16;
527
528     if (ctx->va_rc_mode == VA_RC_CQP) {
529         priv->quant_p = av_clip(avctx->global_quality, 1, 31);
530         if (avctx->i_quant_factor > 0.0)
531             priv->quant_i = av_clip((avctx->global_quality *
532                                      avctx->i_quant_factor +
533                                      avctx->i_quant_offset) + 0.5,
534                                     1, 31);
535         else
536             priv->quant_i = priv->quant_p;
537         if (avctx->b_quant_factor > 0.0)
538             priv->quant_b = av_clip((avctx->global_quality *
539                                      avctx->b_quant_factor +
540                                      avctx->b_quant_offset) + 0.5,
541                                     1, 31);
542         else
543             priv->quant_b = priv->quant_p;
544
545         av_log(avctx, AV_LOG_DEBUG, "Using fixed quantiser "
546                "%d / %d / %d for I- / P- / B-frames.\n",
547                priv->quant_i, priv->quant_p, priv->quant_b);
548
549     } else {
550         av_assert0(0 && "Invalid RC mode.");
551     }
552
553     return 0;
554 }
555
556 static const VAAPIEncodeType vaapi_encode_type_mpeg2 = {
557     .priv_data_size        = sizeof(VAAPIEncodeMPEG2Context),
558
559     .configure             = &vaapi_encode_mpeg2_configure,
560
561     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferMPEG2),
562     .init_sequence_params  = &vaapi_encode_mpeg2_init_sequence_params,
563
564     .picture_params_size   = sizeof(VAEncPictureParameterBufferMPEG2),
565     .init_picture_params   = &vaapi_encode_mpeg2_init_picture_params,
566
567     .slice_params_size     = sizeof(VAEncSliceParameterBufferMPEG2),
568     .init_slice_params     = &vaapi_encode_mpeg2_init_slice_params,
569
570     .sequence_header_type  = VAEncPackedHeaderSequence,
571     .write_sequence_header = &vaapi_encode_mpeg2_write_sequence_header,
572
573     .picture_header_type   = VAEncPackedHeaderPicture,
574     .write_picture_header  = &vaapi_encode_mpeg2_write_picture_header,
575 };
576
577 static av_cold int vaapi_encode_mpeg2_init(AVCodecContext *avctx)
578 {
579     VAAPIEncodeContext *ctx = avctx->priv_data;
580
581     ctx->codec = &vaapi_encode_type_mpeg2;
582
583     switch (avctx->profile) {
584     case FF_PROFILE_MPEG2_SIMPLE:
585         ctx->va_profile = VAProfileMPEG2Simple;
586         break;
587     case FF_PROFILE_MPEG2_MAIN:
588         ctx->va_profile = VAProfileMPEG2Main;
589         break;
590     case FF_PROFILE_MPEG2_422:
591         av_log(avctx, AV_LOG_ERROR, "MPEG-2 4:2:2 profile "
592                "is not supported.\n");
593         return AVERROR_PATCHWELCOME;
594     case FF_PROFILE_MPEG2_HIGH:
595         av_log(avctx, AV_LOG_ERROR, "MPEG-2 high profile "
596                "is not supported.\n");
597         return AVERROR_PATCHWELCOME;
598     case FF_PROFILE_MPEG2_SS:
599     case FF_PROFILE_MPEG2_SNR_SCALABLE:
600         av_log(avctx, AV_LOG_ERROR, "MPEG-2 scalable profiles "
601                "are not supported.\n");
602         return AVERROR_PATCHWELCOME;
603     default:
604         av_log(avctx, AV_LOG_ERROR, "Unknown MPEG-2 profile %d.\n",
605                avctx->profile);
606         return AVERROR(EINVAL);
607     }
608     switch (avctx->level) {
609     case 4: // High
610     case 6: // High 1440
611     case 8: // Main
612     case 10: // Low
613         break;
614     default:
615         av_log(avctx, AV_LOG_ERROR, "Unknown MPEG-2 level %d.\n",
616                avctx->level);
617         return AVERROR(EINVAL);
618     }
619
620     if (avctx->height % 4096 == 0 || avctx->width % 4096 == 0) {
621         av_log(avctx, AV_LOG_ERROR, "MPEG-2 does not support picture "
622                "height or width divisible by 4096.\n");
623         return AVERROR(EINVAL);
624     }
625
626     ctx->va_entrypoint = VAEntrypointEncSlice;
627     ctx->va_rt_format  = VA_RT_FORMAT_YUV420;
628     ctx->va_rc_mode    = VA_RC_CQP;
629
630     ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE |
631                              VA_ENC_PACKED_HEADER_PICTURE;
632
633     ctx->surface_width  = FFALIGN(avctx->width,  16);
634     ctx->surface_height = FFALIGN(avctx->height, 16);
635
636     return ff_vaapi_encode_init(avctx);
637 }
638
639 static av_cold int vaapi_encode_mpeg2_close(AVCodecContext *avctx)
640 {
641     VAAPIEncodeContext *ctx = avctx->priv_data;
642     VAAPIEncodeMPEG2Context *priv = ctx->priv_data;
643
644     if (priv)
645         ff_cbs_close(&priv->cbc);
646
647     return ff_vaapi_encode_close(avctx);
648 }
649
650 static const AVCodecDefault vaapi_encode_mpeg2_defaults[] = {
651     { "profile",        "4"   },
652     { "level",          "4"   },
653     { "bf",             "1"   },
654     { "g",              "120" },
655     { "i_qfactor",      "1"   },
656     { "i_qoffset",      "0"   },
657     { "b_qfactor",      "6/5" },
658     { "b_qoffset",      "0"   },
659     { "global_quality", "10"  },
660     { NULL },
661 };
662
663 AVCodec ff_mpeg2_vaapi_encoder = {
664     .name           = "mpeg2_vaapi",
665     .long_name      = NULL_IF_CONFIG_SMALL("MPEG-2 (VAAPI)"),
666     .type           = AVMEDIA_TYPE_VIDEO,
667     .id             = AV_CODEC_ID_MPEG2VIDEO,
668     .priv_data_size = sizeof(VAAPIEncodeContext),
669     .init           = &vaapi_encode_mpeg2_init,
670     .encode2        = &ff_vaapi_encode2,
671     .close          = &vaapi_encode_mpeg2_close,
672     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
673     .defaults       = vaapi_encode_mpeg2_defaults,
674     .pix_fmts = (const enum AVPixelFormat[]) {
675         AV_PIX_FMT_VAAPI,
676         AV_PIX_FMT_NONE,
677     },
678     .wrapper_name   = "vaapi",
679 };