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1 | /* | ||
2 | * MPEG-1/2 encoder | ||
3 | * Copyright (c) 2000,2001 Fabrice Bellard | ||
4 | * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @file | ||
25 | * MPEG-1/2 encoder | ||
26 | */ | ||
27 | |||
28 | #include <assert.h> | ||
29 | #include <stdint.h> | ||
30 | |||
31 | #include "config.h" | ||
32 | #include "config_components.h" | ||
33 | #include "libavutil/attributes.h" | ||
34 | #include "libavutil/avassert.h" | ||
35 | #include "libavutil/log.h" | ||
36 | #include "libavutil/opt.h" | ||
37 | #include "libavutil/thread.h" | ||
38 | #include "libavutil/timecode.h" | ||
39 | #include "libavutil/stereo3d.h" | ||
40 | |||
41 | #include "avcodec.h" | ||
42 | #include "codec_internal.h" | ||
43 | #include "mathops.h" | ||
44 | #include "mpeg12.h" | ||
45 | #include "mpeg12data.h" | ||
46 | #include "mpeg12enc.h" | ||
47 | #include "mpeg12vlc.h" | ||
48 | #include "mpegutils.h" | ||
49 | #include "mpegvideo.h" | ||
50 | #include "mpegvideoenc.h" | ||
51 | #include "profiles.h" | ||
52 | #include "put_bits.h" | ||
53 | #include "rl.h" | ||
54 | |||
55 | #if CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER | ||
56 | static const uint8_t svcd_scan_offset_placeholder[] = { | ||
57 | 0x10, 0x0E, 0x00, 0x80, 0x81, 0x00, 0x80, | ||
58 | 0x81, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | ||
59 | }; | ||
60 | |||
61 | static uint8_t mv_penalty[MAX_FCODE + 1][MAX_DMV * 2 + 1]; | ||
62 | static uint8_t fcode_tab[MAX_MV * 2 + 1]; | ||
63 | |||
64 | static uint8_t uni_mpeg1_ac_vlc_len[64 * 64 * 2]; | ||
65 | static uint8_t uni_mpeg2_ac_vlc_len[64 * 64 * 2]; | ||
66 | |||
67 | static uint8_t mpeg12_max_level[MAX_LEVEL + 1]; | ||
68 | static uint8_t mpeg12_index_run[MAX_RUN + 1]; | ||
69 | |||
70 | /* simple include everything table for dc, first byte is bits | ||
71 | * number next 3 are code */ | ||
72 | static uint32_t mpeg1_lum_dc_uni[512]; | ||
73 | static uint32_t mpeg1_chr_dc_uni[512]; | ||
74 | |||
75 | typedef struct MPEG12EncContext { | ||
76 | MPVMainEncContext mpeg; | ||
77 | AVRational frame_rate_ext; | ||
78 | unsigned frame_rate_index; | ||
79 | |||
80 | int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num | ||
81 | |||
82 | int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format | ||
83 | AVTimecode tc; ///< timecode context | ||
84 | char *tc_opt_str; ///< timecode option string | ||
85 | int drop_frame_timecode; ///< timecode is in drop frame format. | ||
86 | int scan_offset; ///< reserve space for SVCD scan offset user data. | ||
87 | |||
88 | int a53_cc; | ||
89 | int seq_disp_ext; | ||
90 | int video_format; | ||
91 | #define VIDEO_FORMAT_COMPONENT 0 | ||
92 | #define VIDEO_FORMAT_PAL 1 | ||
93 | #define VIDEO_FORMAT_NTSC 2 | ||
94 | #define VIDEO_FORMAT_SECAM 3 | ||
95 | #define VIDEO_FORMAT_MAC 4 | ||
96 | #define VIDEO_FORMAT_UNSPECIFIED 5 | ||
97 | } MPEG12EncContext; | ||
98 | |||
99 | #define A53_MAX_CC_COUNT 0x1f | ||
100 | #endif /* CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER */ | ||
101 | |||
102 | 119 | av_cold void ff_mpeg1_init_uni_ac_vlc(const int8_t max_level[], | |
103 | const uint8_t index_run[], | ||
104 | const uint16_t table_vlc[][2], | ||
105 | uint8_t uni_ac_vlc_len[]) | ||
106 | { | ||
107 | int i; | ||
108 | |||
109 |
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15351 | for (i = 0; i < 128; i++) { |
110 | 15232 | int level = i - 64; | |
111 | int run; | ||
112 |
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15232 | if (!level) |
113 | 119 | continue; | |
114 |
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982345 | for (run = 0; run < 64; run++) { |
115 | int len, code; | ||
116 | 967232 | int alevel = FFABS(level); | |
117 | |||
118 |
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967232 | if (alevel > max_level[run]) |
119 | 940634 | code = 111; /* rl->n */ | |
120 | else | ||
121 | 26598 | code = index_run[run] + alevel - 1; | |
122 | |||
123 |
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967232 | if (code < 111) { /* rl->n */ |
124 | /* length of VLC and sign */ | ||
125 | 26418 | len = table_vlc[code][1] + 1; | |
126 | } else { | ||
127 | 940814 | len = table_vlc[MPEG12_RL_NB_ELEMS][1] + 6; | |
128 | |||
129 |
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940814 | if (alevel < 128) |
130 | 940814 | len += 8; | |
131 | else | ||
132 | ✗ | len += 16; | |
133 | } | ||
134 | |||
135 | 967232 | uni_ac_vlc_len[UNI_AC_ENC_INDEX(run, i)] = len; | |
136 | } | ||
137 | } | ||
138 | 119 | } | |
139 | |||
140 | #if CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER | ||
141 | 307263 | static void put_header(MPVEncContext *const s, uint32_t header) | |
142 | { | ||
143 | 307263 | align_put_bits(&s->pb); | |
144 | 307263 | put_bits32(&s->pb, header); | |
145 | 307263 | } | |
146 | |||
147 | /* put sequence header if needed */ | ||
148 | 3576 | static void mpeg1_encode_sequence_header(MPEG12EncContext *mpeg12) | |
149 | { | ||
150 | 3576 | MPVEncContext *const s = &mpeg12->mpeg.s; | |
151 | unsigned int vbv_buffer_size, fps, v; | ||
152 | int constraint_parameter_flag; | ||
153 | 3576 | AVRational framerate = ff_mpeg12_frame_rate_tab[mpeg12->frame_rate_index]; | |
154 | uint64_t time_code; | ||
155 | 3576 | int64_t best_aspect_error = INT64_MAX; | |
156 | 3576 | AVRational aspect_ratio = s->c.avctx->sample_aspect_ratio; | |
157 | int aspect_ratio_info; | ||
158 | |||
159 | 3576 | put_bits_assume_flushed(&s->pb); | |
160 | |||
161 |
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3576 | if (!(s->c.cur_pic.ptr->f->flags & AV_FRAME_FLAG_KEY)) |
162 | 3163 | return; | |
163 | |||
164 |
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413 | if (aspect_ratio.num == 0 || aspect_ratio.den == 0) |
165 | 405 | aspect_ratio = (AVRational){1,1}; // pixel aspect 1.1 (VGA) | |
166 | |||
167 | /* MPEG-1 header repeated every GOP */ | ||
168 | 413 | put_header(s, SEQ_START_CODE); | |
169 | |||
170 | 413 | put_sbits(&s->pb, 12, s->c.width & 0xFFF); | |
171 | 413 | put_sbits(&s->pb, 12, s->c.height & 0xFFF); | |
172 | |||
173 |
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6195 | for (int i = 1; i < 15; i++) { |
174 | 5782 | int64_t error = aspect_ratio.num * (1LL<<32) / aspect_ratio.den; | |
175 |
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5782 | if (s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO || i <= 1) |
176 | 1102 | error -= (1LL<<32) / ff_mpeg1_aspect[i]; | |
177 | else | ||
178 | 4680 | error -= (1LL<<32)*ff_mpeg2_aspect[i].num * s->c.height / s->c.width / ff_mpeg2_aspect[i].den; | |
179 | |||
180 | 5782 | error = FFABS(error); | |
181 | |||
182 |
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5782 | if (error - 2 <= best_aspect_error) { |
183 | 416 | best_aspect_error = error; | |
184 | 416 | aspect_ratio_info = i; | |
185 | } | ||
186 | } | ||
187 | |||
188 | 413 | put_bits(&s->pb, 4, aspect_ratio_info); | |
189 | 413 | put_bits(&s->pb, 4, mpeg12->frame_rate_index); | |
190 | |||
191 |
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413 | if (s->c.avctx->rc_max_rate) { |
192 | 153 | v = (s->c.avctx->rc_max_rate + 399) / 400; | |
193 |
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153 | if (v > 0x3ffff && s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO) |
194 | ✗ | v = 0x3ffff; | |
195 | } else { | ||
196 | 260 | v = 0x3FFFF; | |
197 | } | ||
198 | |||
199 |
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413 | if (s->c.avctx->rc_buffer_size) |
200 | 153 | vbv_buffer_size = s->c.avctx->rc_buffer_size; | |
201 | else | ||
202 | /* VBV calculation: Scaled so that a VCD has the proper | ||
203 | * VBV size of 40 kilobytes */ | ||
204 | 260 | vbv_buffer_size = av_rescale_rnd(mpeg12->mpeg.bit_rate, 20, 1151929 / 2, AV_ROUND_ZERO) * 8 * 1024; | |
205 | 413 | vbv_buffer_size = (vbv_buffer_size + 16383) / 16384; | |
206 | |||
207 | 413 | put_sbits(&s->pb, 18, v); | |
208 | 413 | put_bits(&s->pb, 1, 1); // marker | |
209 | 413 | put_sbits(&s->pb, 10, vbv_buffer_size); | |
210 | |||
211 | 413 | constraint_parameter_flag = | |
212 | 823 | s->c.width <= 768 && | |
213 |
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410 | s->c.height <= 576 && |
214 |
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260 | s->c.mb_width * s->c.mb_height <= 396 && |
215 |
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237 | s->c.mb_width * s->c.mb_height * framerate.num <= 396 * 25 * framerate.den && |
216 |
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231 | framerate.num <= framerate.den * 30 && |
217 |
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231 | s->c.avctx->me_range && |
218 | ✗ | s->c.avctx->me_range < 128 && | |
219 | ✗ | vbv_buffer_size <= 20 && | |
220 |
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823 | v <= 1856000 / 400 && |
221 | ✗ | s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO; | |
222 | |||
223 | 413 | put_bits(&s->pb, 1, constraint_parameter_flag); | |
224 | |||
225 | 413 | ff_write_quant_matrix(&s->pb, s->c.avctx->intra_matrix); | |
226 | 413 | ff_write_quant_matrix(&s->pb, s->c.avctx->inter_matrix); | |
227 | |||
228 |
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413 | if (s->c.codec_id == AV_CODEC_ID_MPEG2VIDEO) { |
229 | const AVFrameSideData *side_data; | ||
230 | 360 | int width = s->c.width; | |
231 | 360 | int height = s->c.height; | |
232 | int use_seq_disp_ext; | ||
233 | |||
234 | 360 | put_header(s, EXT_START_CODE); | |
235 | 360 | put_bits(&s->pb, 4, 1); // seq ext | |
236 | |||
237 | 360 | put_bits(&s->pb, 1, s->c.avctx->profile == AV_PROFILE_MPEG2_422); // escx 1 for 4:2:2 profile | |
238 | |||
239 | 360 | put_bits(&s->pb, 3, s->c.avctx->profile); // profile | |
240 | 360 | put_bits(&s->pb, 4, s->c.avctx->level); // level | |
241 | |||
242 | 360 | put_bits(&s->pb, 1, s->c.progressive_sequence); | |
243 | 360 | put_bits(&s->pb, 2, s->c.chroma_format); | |
244 | 360 | put_bits(&s->pb, 2, s->c.width >> 12); | |
245 | 360 | put_bits(&s->pb, 2, s->c.height >> 12); | |
246 | 360 | put_bits(&s->pb, 12, v >> 18); // bitrate ext | |
247 | 360 | put_bits(&s->pb, 1, 1); // marker | |
248 | 360 | put_bits(&s->pb, 8, vbv_buffer_size >> 10); // vbv buffer ext | |
249 | 360 | put_bits(&s->pb, 1, s->c.low_delay); | |
250 | 360 | put_bits(&s->pb, 2, mpeg12->frame_rate_ext.num-1); // frame_rate_ext_n | |
251 | 360 | put_bits(&s->pb, 5, mpeg12->frame_rate_ext.den-1); // frame_rate_ext_d | |
252 | |||
253 | 360 | side_data = av_frame_get_side_data(s->c.cur_pic.ptr->f, AV_FRAME_DATA_PANSCAN); | |
254 |
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360 | if (side_data) { |
255 | 5 | const AVPanScan *pan_scan = (AVPanScan *)side_data->data; | |
256 |
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5 | if (pan_scan->width && pan_scan->height) { |
257 | 5 | width = pan_scan->width >> 4; | |
258 | 5 | height = pan_scan->height >> 4; | |
259 | } | ||
260 | } | ||
261 | |||
262 | 1080 | use_seq_disp_ext = (width != s->c.width || | |
263 |
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360 | height != s->c.height || |
264 |
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360 | s->c.avctx->color_primaries != AVCOL_PRI_UNSPECIFIED || |
265 |
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351 | s->c.avctx->color_trc != AVCOL_TRC_UNSPECIFIED || |
266 |
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1068 | s->c.avctx->colorspace != AVCOL_SPC_UNSPECIFIED || |
267 |
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348 | mpeg12->video_format != VIDEO_FORMAT_UNSPECIFIED); |
268 | |||
269 |
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360 | if (mpeg12->seq_disp_ext == 1 || |
270 |
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360 | (mpeg12->seq_disp_ext == -1 && use_seq_disp_ext)) { |
271 | 12 | put_header(s, EXT_START_CODE); | |
272 | 12 | put_bits(&s->pb, 4, 2); // sequence display extension | |
273 | 12 | put_bits(&s->pb, 3, mpeg12->video_format); // video_format | |
274 | 12 | put_bits(&s->pb, 1, 1); // colour_description | |
275 | 12 | put_bits(&s->pb, 8, s->c.avctx->color_primaries); // colour_primaries | |
276 | 12 | put_bits(&s->pb, 8, s->c.avctx->color_trc); // transfer_characteristics | |
277 | 12 | put_bits(&s->pb, 8, s->c.avctx->colorspace); // matrix_coefficients | |
278 | 12 | put_bits(&s->pb, 14, width); // display_horizontal_size | |
279 | 12 | put_bits(&s->pb, 1, 1); // marker_bit | |
280 | 12 | put_bits(&s->pb, 14, height); // display_vertical_size | |
281 | 12 | put_bits(&s->pb, 3, 0); // remaining 3 bits are zero padding | |
282 | } | ||
283 | } | ||
284 | |||
285 | 413 | put_header(s, GOP_START_CODE); | |
286 | 413 | put_bits(&s->pb, 1, mpeg12->drop_frame_timecode); // drop frame flag | |
287 | /* time code: we must convert from the real frame rate to a | ||
288 | * fake MPEG frame rate in case of low frame rate */ | ||
289 | 413 | fps = (framerate.num + framerate.den / 2) / framerate.den; | |
290 | 413 | time_code = s->c.cur_pic.ptr->coded_picture_number + | |
291 | 413 | mpeg12->timecode_frame_start; | |
292 | |||
293 | 413 | mpeg12->gop_picture_number = s->c.cur_pic.ptr->coded_picture_number; | |
294 | |||
295 |
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413 | av_assert0(mpeg12->drop_frame_timecode == !!(mpeg12->tc.flags & AV_TIMECODE_FLAG_DROPFRAME)); |
296 |
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413 | if (mpeg12->drop_frame_timecode) |
297 | 9 | time_code = av_timecode_adjust_ntsc_framenum2(time_code, fps); | |
298 | |||
299 | 413 | put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24)); | |
300 | 413 | put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60)); | |
301 | 413 | put_bits(&s->pb, 1, 1); | |
302 | 413 | put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60)); | |
303 | 413 | put_bits(&s->pb, 6, (uint32_t)((time_code % fps))); | |
304 | 413 | put_bits(&s->pb, 1, !!(s->c.avctx->flags & AV_CODEC_FLAG_CLOSED_GOP) || | |
305 |
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413 | mpeg12->mpeg.intra_only || !mpeg12->gop_picture_number); |
306 | 413 | put_bits(&s->pb, 1, 0); // broken link | |
307 | } | ||
308 | |||
309 | 1776953 | static inline void encode_mb_skip_run(MPVEncContext *const s, int run) | |
310 | { | ||
311 |
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1846152 | while (run >= 33) { |
312 | 69199 | put_bits(&s->pb, 11, 0x008); | |
313 | 69199 | run -= 33; | |
314 | } | ||
315 | 1776953 | put_bits(&s->pb, ff_mpeg12_mbAddrIncrTable[run][1], | |
316 | 1776953 | ff_mpeg12_mbAddrIncrTable[run][0]); | |
317 | 1776953 | } | |
318 | |||
319 | 481417 | static av_always_inline void put_qscale(MPVEncContext *const s) | |
320 | { | ||
321 | 481417 | put_bits(&s->pb, 5, s->c.qscale); | |
322 | 481417 | } | |
323 | |||
324 | 299259 | void ff_mpeg1_encode_slice_header(MPVEncContext *const s) | |
325 | { | ||
326 |
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299259 | if (s->c.codec_id == AV_CODEC_ID_MPEG2VIDEO && s->c.height > 2800) { |
327 | ✗ | put_header(s, SLICE_MIN_START_CODE + (s->c.mb_y & 127)); | |
328 | /* slice_vertical_position_extension */ | ||
329 | ✗ | put_bits(&s->pb, 3, s->c.mb_y >> 7); | |
330 | } else { | ||
331 | av_assert1(s->c.mb_y <= SLICE_MAX_START_CODE - SLICE_MIN_START_CODE); | ||
332 | 299259 | put_header(s, SLICE_MIN_START_CODE + s->c.mb_y); | |
333 | } | ||
334 | 299259 | put_qscale(s); | |
335 | /* slice extra information */ | ||
336 | 299259 | put_bits(&s->pb, 1, 0); | |
337 | 299259 | } | |
338 | |||
339 | 3576 | static int mpeg1_encode_picture_header(MPVMainEncContext *const m) | |
340 | { | ||
341 | 3576 | MPEG12EncContext *const mpeg12 = (MPEG12EncContext*)m; | |
342 | 3576 | MPVEncContext *const s = &m->s; | |
343 | const AVFrameSideData *side_data; | ||
344 | |||
345 | 3576 | put_bits_assume_flushed(&s->pb); | |
346 | |||
347 | 3576 | mpeg1_encode_sequence_header(mpeg12); | |
348 | |||
349 | /* MPEG-1 picture header */ | ||
350 | 3576 | put_header(s, PICTURE_START_CODE); | |
351 | /* temporal reference */ | ||
352 | |||
353 | // RAL: s->c.picture_number instead of s->fake_picture_number | ||
354 | 3576 | put_bits(&s->pb, 10, | |
355 | 3576 | (s->c.picture_number - mpeg12->gop_picture_number) & 0x3ff); | |
356 | 3576 | put_bits(&s->pb, 3, s->c.pict_type); | |
357 | |||
358 | 3576 | m->vbv_delay_pos = put_bytes_count(&s->pb, 0); | |
359 | 3576 | put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */ | |
360 | |||
361 | // RAL: Forward f_code also needed for B-frames | ||
362 |
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3576 | if (s->c.pict_type == AV_PICTURE_TYPE_P || |
363 |
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1120 | s->c.pict_type == AV_PICTURE_TYPE_B) { |
364 | 3163 | put_bits(&s->pb, 1, 0); /* half pel coordinates */ | |
365 |
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3163 | if (s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO) |
366 | 427 | put_bits(&s->pb, 3, s->f_code); /* forward_f_code */ | |
367 | else | ||
368 | 2736 | put_bits(&s->pb, 3, 7); /* forward_f_code */ | |
369 | } | ||
370 | |||
371 | // RAL: Backward f_code necessary for B-frames | ||
372 |
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3576 | if (s->c.pict_type == AV_PICTURE_TYPE_B) { |
373 | 707 | put_bits(&s->pb, 1, 0); /* half pel coordinates */ | |
374 |
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707 | if (s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO) |
375 | 144 | put_bits(&s->pb, 3, s->b_code); /* backward_f_code */ | |
376 | else | ||
377 | 563 | put_bits(&s->pb, 3, 7); /* backward_f_code */ | |
378 | } | ||
379 | |||
380 | 3576 | put_bits(&s->pb, 1, 0); /* extra bit picture */ | |
381 | |||
382 | 3576 | s->c.frame_pred_frame_dct = 1; | |
383 |
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3576 | if (s->c.codec_id == AV_CODEC_ID_MPEG2VIDEO) { |
384 | 3096 | put_header(s, EXT_START_CODE); | |
385 | 3096 | put_bits(&s->pb, 4, 8); /* pic ext */ | |
386 |
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3096 | if (s->c.pict_type == AV_PICTURE_TYPE_P || |
387 |
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923 | s->c.pict_type == AV_PICTURE_TYPE_B) { |
388 | 2736 | put_bits(&s->pb, 4, s->f_code); | |
389 | 2736 | put_bits(&s->pb, 4, s->f_code); | |
390 | } else { | ||
391 | 360 | put_bits(&s->pb, 8, 255); | |
392 | } | ||
393 |
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3096 | if (s->c.pict_type == AV_PICTURE_TYPE_B) { |
394 | 563 | put_bits(&s->pb, 4, s->b_code); | |
395 | 563 | put_bits(&s->pb, 4, s->b_code); | |
396 | } else { | ||
397 | 2533 | put_bits(&s->pb, 8, 255); | |
398 | } | ||
399 | 3096 | put_bits(&s->pb, 2, s->c.intra_dc_precision); | |
400 | |||
401 |
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3096 | av_assert0(s->c.picture_structure == PICT_FRAME); |
402 | 3096 | put_bits(&s->pb, 2, s->c.picture_structure); | |
403 |
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3096 | if (s->c.progressive_sequence) |
404 | 1946 | put_bits(&s->pb, 1, 0); /* no repeat */ | |
405 | else | ||
406 | 1150 | put_bits(&s->pb, 1, !!(s->c.cur_pic.ptr->f->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST)); | |
407 | /* XXX: optimize the generation of this flag with entropy measures */ | ||
408 | 3096 | s->c.frame_pred_frame_dct = s->c.progressive_sequence; | |
409 | |||
410 | 3096 | put_bits(&s->pb, 1, s->c.frame_pred_frame_dct); | |
411 | 3096 | put_bits(&s->pb, 1, s->c.concealment_motion_vectors); | |
412 | 3096 | put_bits(&s->pb, 1, s->c.q_scale_type); | |
413 | 3096 | put_bits(&s->pb, 1, s->c.intra_vlc_format); | |
414 | 3096 | put_bits(&s->pb, 1, s->c.alternate_scan); | |
415 | 3096 | put_bits(&s->pb, 1, s->c.repeat_first_field); | |
416 | 3096 | s->c.progressive_frame = s->c.progressive_sequence; | |
417 | /* chroma_420_type */ | ||
418 |
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5842 | put_bits(&s->pb, 1, s->c.chroma_format == |
419 | 2746 | CHROMA_420 ? s->c.progressive_frame : 0); | |
420 | 3096 | put_bits(&s->pb, 1, s->c.progressive_frame); | |
421 | 3096 | put_bits(&s->pb, 1, 0); /* composite_display_flag */ | |
422 | } | ||
423 |
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3576 | if (mpeg12->scan_offset) { |
424 | int i; | ||
425 | |||
426 | ✗ | put_header(s, USER_START_CODE); | |
427 | ✗ | for (i = 0; i < sizeof(svcd_scan_offset_placeholder); i++) | |
428 | ✗ | put_bits(&s->pb, 8, svcd_scan_offset_placeholder[i]); | |
429 | } | ||
430 | 3576 | side_data = av_frame_get_side_data(s->c.cur_pic.ptr->f, | |
431 | AV_FRAME_DATA_STEREO3D); | ||
432 |
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3576 | if (side_data) { |
433 | ✗ | const AVStereo3D *stereo = (AVStereo3D *)side_data->data; | |
434 | uint8_t fpa_type; | ||
435 | |||
436 | ✗ | switch (stereo->type) { | |
437 | ✗ | case AV_STEREO3D_SIDEBYSIDE: | |
438 | ✗ | fpa_type = 0x03; | |
439 | ✗ | break; | |
440 | ✗ | case AV_STEREO3D_TOPBOTTOM: | |
441 | ✗ | fpa_type = 0x04; | |
442 | ✗ | break; | |
443 | ✗ | case AV_STEREO3D_2D: | |
444 | ✗ | fpa_type = 0x08; | |
445 | ✗ | break; | |
446 | ✗ | case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: | |
447 | ✗ | fpa_type = 0x23; | |
448 | ✗ | break; | |
449 | ✗ | default: | |
450 | ✗ | fpa_type = 0; | |
451 | ✗ | break; | |
452 | } | ||
453 | |||
454 | ✗ | if (fpa_type != 0) { | |
455 | ✗ | put_header(s, USER_START_CODE); | |
456 | // S3D_video_format_signaling_identifier | ||
457 | ✗ | put_bits32(&s->pb, MKBETAG('J','P','3','D')); | |
458 | ✗ | put_bits(&s->pb, 8, 0x03); // S3D_video_format_length | |
459 | |||
460 | ✗ | put_bits(&s->pb, 1, 1); // reserved_bit | |
461 | ✗ | put_bits(&s->pb, 7, fpa_type); // S3D_video_format_type | |
462 | ✗ | put_bits(&s->pb, 16, 0x04FF); // reserved_data | |
463 | } | ||
464 | } | ||
465 | |||
466 |
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3576 | if (CONFIG_MPEG2VIDEO_ENCODER && mpeg12->a53_cc) { |
467 | 3096 | side_data = av_frame_get_side_data(s->c.cur_pic.ptr->f, | |
468 | AV_FRAME_DATA_A53_CC); | ||
469 |
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3096 | if (side_data) { |
470 |
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135 | if (side_data->size <= A53_MAX_CC_COUNT * 3 && side_data->size % 3 == 0) { |
471 | 134 | put_header (s, USER_START_CODE); | |
472 | |||
473 | 134 | put_bits32(&s->pb, MKBETAG('G','A','9','4')); // user_identifier | |
474 | 134 | put_bits(&s->pb, 8, 3); // user_data_type_code | |
475 | 134 | put_bits(&s->pb, 8, | |
476 | 134 | (side_data->size / 3 & A53_MAX_CC_COUNT) | 0x40); // flags, cc_count | |
477 | 134 | put_bits(&s->pb, 8, 0xff); // em_data | |
478 | |||
479 |
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8174 | for (int i = 0; i < side_data->size; i++) |
480 | 8040 | put_bits(&s->pb, 8, side_data->data[i]); | |
481 | |||
482 | 134 | put_bits(&s->pb, 8, 0xff); // marker_bits | |
483 | } else { | ||
484 | 1 | av_log(s->c.avctx, AV_LOG_WARNING, | |
485 | "Closed Caption size (%"SIZE_SPECIFIER") can not exceed " | ||
486 | 1 | "93 bytes and must be a multiple of 3\n", side_data->size); | |
487 | } | ||
488 | } | ||
489 | } | ||
490 | |||
491 | 3576 | s->c.mb_y = 0; | |
492 | 3576 | ff_mpeg1_encode_slice_header(s); | |
493 | |||
494 | 3576 | return 0; | |
495 | } | ||
496 | |||
497 | 1455808 | static inline void put_mb_modes(MPVEncContext *const s, int n, int bits, | |
498 | int has_mv, int field_motion) | ||
499 | { | ||
500 | 1455808 | put_bits(&s->pb, n, bits); | |
501 |
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1455808 | if (!s->c.frame_pred_frame_dct) { |
502 |
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751049 | if (has_mv) |
503 | /* motion_type: frame/field */ | ||
504 | 407012 | put_bits(&s->pb, 2, 2 - field_motion); | |
505 | 751049 | put_bits(&s->pb, 1, s->c.interlaced_dct); | |
506 | } | ||
507 | 1455808 | } | |
508 | |||
509 | // RAL: Parameter added: f_or_b_code | ||
510 | 3283796 | static void mpeg1_encode_motion(MPVEncContext *const s, int val, int f_or_b_code) | |
511 | { | ||
512 |
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3283796 | if (val == 0) { |
513 | /* zero vector, corresponds to ff_mpeg12_mbMotionVectorTable[0] */ | ||
514 | 1313162 | put_bits(&s->pb, 1, 0x01); | |
515 | } else { | ||
516 | int code, sign, bits; | ||
517 | 1970634 | int bit_size = f_or_b_code - 1; | |
518 | 1970634 | int range = 1 << bit_size; | |
519 | /* modulo encoding */ | ||
520 | 1970634 | val = sign_extend(val, 5 + bit_size); | |
521 | |||
522 |
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1970634 | if (val >= 0) { |
523 | 950678 | val--; | |
524 | 950678 | code = (val >> bit_size) + 1; | |
525 | 950678 | bits = val & (range - 1); | |
526 | 950678 | sign = 0; | |
527 | } else { | ||
528 | 1019956 | val = -val; | |
529 | 1019956 | val--; | |
530 | 1019956 | code = (val >> bit_size) + 1; | |
531 | 1019956 | bits = val & (range - 1); | |
532 | 1019956 | sign = 1; | |
533 | } | ||
534 | |||
535 | av_assert2(code > 0 && code <= 16); | ||
536 | |||
537 | 1970634 | put_bits(&s->pb, | |
538 | 1970634 | ff_mpeg12_mbMotionVectorTable[code][1], | |
539 | 1970634 | ff_mpeg12_mbMotionVectorTable[code][0]); | |
540 | |||
541 | 1970634 | put_bits(&s->pb, 1, sign); | |
542 |
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1970634 | if (bit_size > 0) |
543 | 1418976 | put_bits(&s->pb, bit_size, bits); | |
544 | } | ||
545 | 3283796 | } | |
546 | |||
547 | 3438674 | static inline void encode_dc(MPVEncContext *const s, int diff, int component) | |
548 | { | ||
549 | 3438674 | unsigned int diff_u = diff + 255; | |
550 |
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3438674 | if (diff_u >= 511) { |
551 | int index; | ||
552 | |||
553 |
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162210 | if (diff < 0) { |
554 | 113286 | index = av_log2_16bit(-2 * diff); | |
555 | 113286 | diff--; | |
556 | } else { | ||
557 | 48924 | index = av_log2_16bit(2 * diff); | |
558 | } | ||
559 |
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162210 | if (component == 0) |
560 | 91380 | put_bits(&s->pb, | |
561 | 91380 | ff_mpeg12_vlc_dc_lum_bits[index] + index, | |
562 | 91380 | (ff_mpeg12_vlc_dc_lum_code[index] << index) + | |
563 | 91380 | av_zero_extend(diff, index)); | |
564 | else | ||
565 | 70830 | put_bits(&s->pb, | |
566 | 70830 | ff_mpeg12_vlc_dc_chroma_bits[index] + index, | |
567 | 70830 | (ff_mpeg12_vlc_dc_chroma_code[index] << index) + | |
568 | 70830 | av_zero_extend(diff, index)); | |
569 | } else { | ||
570 |
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3276464 | if (component == 0) |
571 | 1807388 | put_bits(&s->pb, | |
572 | 1807388 | mpeg1_lum_dc_uni[diff + 255] & 0xFF, | |
573 | 1807388 | mpeg1_lum_dc_uni[diff + 255] >> 8); | |
574 | else | ||
575 | 1469076 | put_bits(&s->pb, | |
576 | 1469076 | mpeg1_chr_dc_uni[diff + 255] & 0xFF, | |
577 | 1469076 | mpeg1_chr_dc_uni[diff + 255] >> 8); | |
578 | } | ||
579 | 3438674 | } | |
580 | |||
581 | 7011737 | static void mpeg1_encode_block(MPVEncContext *const s, const int16_t block[], int n) | |
582 | { | ||
583 | int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign; | ||
584 | int code, component; | ||
585 | 7011737 | const uint16_t (*table_vlc)[2] = ff_mpeg1_vlc_table; | |
586 | |||
587 | 7011737 | last_index = s->c.block_last_index[n]; | |
588 | |||
589 | /* DC coef */ | ||
590 |
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7011737 | if (s->c.mb_intra) { |
591 |
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3438674 | component = (n <= 3 ? 0 : (n & 1) + 1); |
592 | 3438674 | dc = block[0]; /* overflow is impossible */ | |
593 | 3438674 | diff = dc - s->c.last_dc[component]; | |
594 | 3438674 | encode_dc(s, diff, component); | |
595 | 3438674 | s->c.last_dc[component] = dc; | |
596 | 3438674 | i = 1; | |
597 |
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3438674 | if (s->c.intra_vlc_format) |
598 | 2641700 | table_vlc = ff_mpeg2_vlc_table; | |
599 | } else { | ||
600 | /* encode the first coefficient: needs to be done here because | ||
601 | * it is handled slightly differently */ | ||
602 | 3573063 | level = block[0]; | |
603 |
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3573063 | if (abs(level) == 1) { |
604 | 1068227 | code = ((uint32_t)level >> 31); /* the sign bit */ | |
605 | 1068227 | put_bits(&s->pb, 2, code | 0x02); | |
606 | 1068227 | i = 1; | |
607 | } else { | ||
608 | 2504836 | i = 0; | |
609 | 2504836 | last_non_zero = -1; | |
610 | 2504836 | goto next_coef; | |
611 | } | ||
612 | } | ||
613 | |||
614 | /* now quantify & encode AC coefs */ | ||
615 | 4506901 | last_non_zero = i - 1; | |
616 | |||
617 |
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170857093 | for (; i <= last_index; i++) { |
618 | 163845356 | j = s->c.intra_scantable.permutated[i]; | |
619 | 163845356 | level = block[j]; | |
620 | |||
621 | 166350192 | next_coef: | |
622 | /* encode using VLC */ | ||
623 |
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166350192 | if (level != 0) { |
624 | 68884026 | run = i - last_non_zero - 1; | |
625 | |||
626 | 68884026 | alevel = level; | |
627 | 68884026 | MASK_ABS(sign, alevel); | |
628 | 68884026 | sign &= 1; | |
629 | |||
630 |
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68884026 | if (alevel <= mpeg12_max_level[run]) { |
631 | 66711344 | code = mpeg12_index_run[run] + alevel - 1; | |
632 | /* store the VLC & sign at once */ | ||
633 | 66711344 | put_bits(&s->pb, table_vlc[code][1] + 1, | |
634 | 66711344 | (table_vlc[code][0] << 1) + sign); | |
635 | } else { | ||
636 | /* Escape seems to be pretty rare <5% so I do not optimize it. | ||
637 | * The following encodes run together with the common escape | ||
638 | * value of both tables 000001b. */ | ||
639 | 2172682 | put_bits(&s->pb, 6 + 6, 0x01 << 6 | run); | |
640 | /* escape: only clip in this case */ | ||
641 |
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2172682 | if (s->c.codec_id == AV_CODEC_ID_MPEG1VIDEO) { |
642 |
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82680 | if (alevel < 128) { |
643 | 82680 | put_sbits(&s->pb, 8, level); | |
644 | } else { | ||
645 | ✗ | if (level < 0) | |
646 | ✗ | put_bits(&s->pb, 16, 0x8001 + level + 255); | |
647 | else | ||
648 | ✗ | put_sbits(&s->pb, 16, level); | |
649 | } | ||
650 | } else { | ||
651 | 2090002 | put_sbits(&s->pb, 12, level); | |
652 | } | ||
653 | } | ||
654 | 68884026 | last_non_zero = i; | |
655 | } | ||
656 | } | ||
657 | /* end of block */ | ||
658 | 7011737 | put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]); | |
659 | 7011737 | } | |
660 | |||
661 | 1910478 | static av_always_inline void mpeg1_encode_mb_internal(MPVEncContext *const s, | |
662 | const int16_t block[8][64], | ||
663 | int motion_x, int motion_y, | ||
664 | int mb_block_count, | ||
665 | int chroma_y_shift) | ||
666 | { | ||
667 | /* MPEG-1 is always 420. */ | ||
668 | #define IS_MPEG1(s) (chroma_y_shift == 1 && (s)->c.codec_id == AV_CODEC_ID_MPEG1VIDEO) | ||
669 | int i, cbp; | ||
670 | 1910478 | const int mb_x = s->c.mb_x; | |
671 | 1910478 | const int mb_y = s->c.mb_y; | |
672 |
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1910478 | const int first_mb = mb_x == s->c.resync_mb_x && mb_y == s->c.resync_mb_y; |
673 | |||
674 | /* compute cbp */ | ||
675 | 1910478 | cbp = 0; | |
676 |
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14659256 | for (i = 0; i < mb_block_count; i++) |
677 |
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12748778 | if (s->c.block_last_index[i] >= 0) |
678 | 7011737 | cbp |= 1 << (mb_block_count - 1 - i); | |
679 | |||
680 |
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1910478 | if (cbp == 0 && !first_mb && s->c.mv_type == MV_TYPE_16X16 && |
681 |
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423114 | (mb_x != s->c.mb_width - 1 || |
682 |
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12180 | (mb_y != s->c.end_mb_y - 1 && IS_MPEG1(s))) && |
683 |
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411486 | ((s->c.pict_type == AV_PICTURE_TYPE_P && (motion_x | motion_y) == 0) || |
684 |
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282303 | (s->c.pict_type == AV_PICTURE_TYPE_B && s->c.mv_dir == s->last_mv_dir && |
685 | 22008 | (((s->c.mv_dir & MV_DIR_FORWARD) | |
686 | 20311 | ? ((s->c.mv[0][0][0] - s->c.last_mv[0][0][0]) | | |
687 |
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44016 | (s->c.mv[0][0][1] - s->c.last_mv[0][0][1])) : 0) | |
688 | 22008 | ((s->c.mv_dir & MV_DIR_BACKWARD) | |
689 | 21679 | ? ((s->c.mv[1][0][0] - s->c.last_mv[1][0][0]) | | |
690 |
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22008 | (s->c.mv[1][0][1] - s->c.last_mv[1][0][1])) : 0)) == 0))) { |
691 | 133525 | s->c.mb_skip_run++; | |
692 | 133525 | s->c.qscale -= s->dquant; | |
693 | 133525 | s->misc_bits++; | |
694 | 133525 | s->last_bits++; | |
695 |
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133525 | if (s->c.pict_type == AV_PICTURE_TYPE_P) { |
696 | 129183 | s->c.last_mv[0][0][0] = | |
697 | 129183 | s->c.last_mv[0][0][1] = | |
698 | 129183 | s->c.last_mv[0][1][0] = | |
699 | 129183 | s->c.last_mv[0][1][1] = 0; | |
700 | } | ||
701 | } else { | ||
702 |
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1776953 | if (first_mb) { |
703 |
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326442 | av_assert0(s->c.mb_skip_run == 0); |
704 | 326442 | encode_mb_skip_run(s, s->c.mb_x); | |
705 | } else { | ||
706 | 1450511 | encode_mb_skip_run(s, s->c.mb_skip_run); | |
707 | } | ||
708 | |||
709 |
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1776953 | if (s->c.pict_type == AV_PICTURE_TYPE_I) { |
710 |
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400954 | if (s->dquant && cbp) { |
711 | /* macroblock_type: macroblock_quant = 1 */ | ||
712 | 43090 | put_mb_modes(s, 2, 1, 0, 0); | |
713 | 43090 | put_qscale(s); | |
714 | } else { | ||
715 | /* macroblock_type: macroblock_quant = 0 */ | ||
716 | 357864 | put_mb_modes(s, 1, 1, 0, 0); | |
717 | 357864 | s->c.qscale -= s->dquant; | |
718 | } | ||
719 | 400954 | s->misc_bits += get_bits_diff(s); | |
720 | 400954 | s->i_count++; | |
721 |
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|
1375999 | } else if (s->c.mb_intra) { |
722 |
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|
73738 | if (s->dquant && cbp) { |
723 | 11835 | put_mb_modes(s, 6, 0x01, 0, 0); | |
724 | 11835 | put_qscale(s); | |
725 | } else { | ||
726 | 61903 | put_mb_modes(s, 5, 0x03, 0, 0); | |
727 | 61903 | s->c.qscale -= s->dquant; | |
728 | } | ||
729 | 73738 | s->misc_bits += get_bits_diff(s); | |
730 | 73738 | s->i_count++; | |
731 | 73738 | memset(s->c.last_mv, 0, sizeof(s->c.last_mv)); | |
732 |
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|
1302261 | } else if (s->c.pict_type == AV_PICTURE_TYPE_P) { |
733 |
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|
721318 | if (s->c.mv_type == MV_TYPE_16X16) { |
734 |
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|
698469 | if (cbp != 0) { |
735 |
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|
573480 | if ((motion_x | motion_y) == 0) { |
736 |
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|
61233 | if (s->dquant) { |
737 | /* macroblock_pattern & quant */ | ||
738 | 1554 | put_mb_modes(s, 5, 1, 0, 0); | |
739 | 1554 | put_qscale(s); | |
740 | } else { | ||
741 | /* macroblock_pattern only */ | ||
742 | 59679 | put_mb_modes(s, 2, 1, 0, 0); | |
743 | } | ||
744 | 61233 | s->misc_bits += get_bits_diff(s); | |
745 | } else { | ||
746 |
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|
512247 | if (s->dquant) { |
747 | 72389 | put_mb_modes(s, 5, 2, 1, 0); /* motion + cbp */ | |
748 | 72389 | put_qscale(s); | |
749 | } else { | ||
750 | 439858 | put_mb_modes(s, 1, 1, 1, 0); /* motion + cbp */ | |
751 | } | ||
752 | 512247 | s->misc_bits += get_bits_diff(s); | |
753 | // RAL: f_code parameter added | ||
754 | 512247 | mpeg1_encode_motion(s, | |
755 | 512247 | motion_x - s->c.last_mv[0][0][0], | |
756 | s->f_code); | ||
757 | // RAL: f_code parameter added | ||
758 | 512247 | mpeg1_encode_motion(s, | |
759 | 512247 | motion_y - s->c.last_mv[0][0][1], | |
760 | s->f_code); | ||
761 | 512247 | s->mv_bits += get_bits_diff(s); | |
762 | } | ||
763 | } else { | ||
764 | 124989 | put_bits(&s->pb, 3, 1); /* motion only */ | |
765 |
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|
124989 | if (!s->c.frame_pred_frame_dct) |
766 | 24679 | put_bits(&s->pb, 2, 2); /* motion_type: frame */ | |
767 | 124989 | s->misc_bits += get_bits_diff(s); | |
768 | // RAL: f_code parameter added | ||
769 | 124989 | mpeg1_encode_motion(s, | |
770 | 124989 | motion_x - s->c.last_mv[0][0][0], | |
771 | s->f_code); | ||
772 | // RAL: f_code parameter added | ||
773 | 124989 | mpeg1_encode_motion(s, | |
774 | 124989 | motion_y - s->c.last_mv[0][0][1], | |
775 | s->f_code); | ||
776 | 124989 | s->c.qscale -= s->dquant; | |
777 | 124989 | s->mv_bits += get_bits_diff(s); | |
778 | } | ||
779 | 698469 | s->c.last_mv[0][1][0] = s->c.last_mv[0][0][0] = motion_x; | |
780 | 698469 | s->c.last_mv[0][1][1] = s->c.last_mv[0][0][1] = motion_y; | |
781 | } else { | ||
782 | av_assert2(!s->c.frame_pred_frame_dct && s->c.mv_type == MV_TYPE_FIELD); | ||
783 | |||
784 |
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|
22849 | if (cbp) { |
785 |
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|
21344 | if (s->dquant) { |
786 | ✗ | put_mb_modes(s, 5, 2, 1, 1); /* motion + cbp */ | |
787 | ✗ | put_qscale(s); | |
788 | } else { | ||
789 | 21344 | put_mb_modes(s, 1, 1, 1, 1); /* motion + cbp */ | |
790 | } | ||
791 | } else { | ||
792 | 1505 | put_bits(&s->pb, 3, 1); /* motion only */ | |
793 | 1505 | put_bits(&s->pb, 2, 1); /* motion_type: field */ | |
794 | 1505 | s->c.qscale -= s->dquant; | |
795 | } | ||
796 | 22849 | s->misc_bits += get_bits_diff(s); | |
797 |
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|
68547 | for (i = 0; i < 2; i++) { |
798 | 45698 | put_bits(&s->pb, 1, s->c.field_select[0][i]); | |
799 | 45698 | mpeg1_encode_motion(s, | |
800 | 45698 | s->c.mv[0][i][0] - s->c.last_mv[0][i][0], | |
801 | s->f_code); | ||
802 | 45698 | mpeg1_encode_motion(s, | |
803 | 45698 | s->c.mv[0][i][1] - (s->c.last_mv[0][i][1] >> 1), | |
804 | s->f_code); | ||
805 | 45698 | s->c.last_mv[0][i][0] = s->c.mv[0][i][0]; | |
806 | 45698 | s->c.last_mv[0][i][1] = 2 * s->c.mv[0][i][1]; | |
807 | } | ||
808 | 22849 | s->mv_bits += get_bits_diff(s); | |
809 | } | ||
810 |
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|
721318 | if (cbp) { |
811 |
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|
594824 | if (chroma_y_shift) { |
812 | 520012 | put_bits(&s->pb, | |
813 | 520012 | ff_mpeg12_mbPatTable[cbp][1], | |
814 | 520012 | ff_mpeg12_mbPatTable[cbp][0]); | |
815 | } else { | ||
816 | 74812 | put_bits(&s->pb, | |
817 | 74812 | ff_mpeg12_mbPatTable[cbp >> 2][1], | |
818 | 74812 | ff_mpeg12_mbPatTable[cbp >> 2][0]); | |
819 | 74812 | put_sbits(&s->pb, 2, cbp); | |
820 | } | ||
821 | } | ||
822 | } else { | ||
823 |
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|
580943 | if (s->c.mv_type == MV_TYPE_16X16) { |
824 |
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|
488110 | if (cbp) { // With coded bloc pattern |
825 |
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|
312597 | if (s->dquant) { |
826 |
2/2✓ Branch 0 taken 11218 times.
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|
53290 | if (s->c.mv_dir == MV_DIR_FORWARD) |
827 | 11218 | put_mb_modes(s, 6, 3, 1, 0); | |
828 | else | ||
829 | 42072 | put_mb_modes(s, 8 - s->c.mv_dir, 2, 1, 0); | |
830 | 53290 | put_qscale(s); | |
831 | } else { | ||
832 | 259307 | put_mb_modes(s, 5 - s->c.mv_dir, 3, 1, 0); | |
833 | } | ||
834 | } else { // No coded bloc pattern | ||
835 | 175513 | put_bits(&s->pb, 5 - s->c.mv_dir, 2); | |
836 |
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|
175513 | if (!s->c.frame_pred_frame_dct) |
837 | 82021 | put_bits(&s->pb, 2, 2); /* motion_type: frame */ | |
838 | 175513 | s->c.qscale -= s->dquant; | |
839 | } | ||
840 | 488110 | s->misc_bits += get_bits_diff(s); | |
841 |
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|
488110 | if (s->c.mv_dir & MV_DIR_FORWARD) { |
842 | 351301 | mpeg1_encode_motion(s, | |
843 | 351301 | s->c.mv[0][0][0] - s->c.last_mv[0][0][0], | |
844 | s->f_code); | ||
845 | 351301 | mpeg1_encode_motion(s, | |
846 | 351301 | s->c.mv[0][0][1] - s->c.last_mv[0][0][1], | |
847 | s->f_code); | ||
848 | 351301 | s->c.last_mv[0][0][0] = | |
849 | 351301 | s->c.last_mv[0][1][0] = s->c.mv[0][0][0]; | |
850 | 351301 | s->c.last_mv[0][0][1] = | |
851 | 351301 | s->c.last_mv[0][1][1] = s->c.mv[0][0][1]; | |
852 | } | ||
853 |
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|
488110 | if (s->c.mv_dir & MV_DIR_BACKWARD) { |
854 | 369943 | mpeg1_encode_motion(s, | |
855 | 369943 | s->c.mv[1][0][0] - s->c.last_mv[1][0][0], | |
856 | s->b_code); | ||
857 | 369943 | mpeg1_encode_motion(s, | |
858 | 369943 | s->c.mv[1][0][1] - s->c.last_mv[1][0][1], | |
859 | s->b_code); | ||
860 | 369943 | s->c.last_mv[1][0][0] = | |
861 | 369943 | s->c.last_mv[1][1][0] = s->c.mv[1][0][0]; | |
862 | 369943 | s->c.last_mv[1][0][1] = | |
863 | 369943 | s->c.last_mv[1][1][1] = s->c.mv[1][0][1]; | |
864 | } | ||
865 | } else { | ||
866 | av_assert2(s->c.mv_type == MV_TYPE_FIELD); | ||
867 | av_assert2(!s->c.frame_pred_frame_dct); | ||
868 |
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|
92833 | if (cbp) { // With coded bloc pattern |
869 |
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|
73695 | if (s->dquant) { |
870 | ✗ | if (s->c.mv_dir == MV_DIR_FORWARD) | |
871 | ✗ | put_mb_modes(s, 6, 3, 1, 1); | |
872 | else | ||
873 | ✗ | put_mb_modes(s, 8 - s->c.mv_dir, 2, 1, 1); | |
874 | ✗ | put_qscale(s); | |
875 | } else { | ||
876 | 73695 | put_mb_modes(s, 5 - s->c.mv_dir, 3, 1, 1); | |
877 | } | ||
878 | } else { // No coded bloc pattern | ||
879 | 19138 | put_bits(&s->pb, 5 - s->c.mv_dir, 2); | |
880 | 19138 | put_bits(&s->pb, 2, 1); /* motion_type: field */ | |
881 | 19138 | s->c.qscale -= s->dquant; | |
882 | } | ||
883 | 92833 | s->misc_bits += get_bits_diff(s); | |
884 |
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|
92833 | if (s->c.mv_dir & MV_DIR_FORWARD) { |
885 |
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|
177573 | for (i = 0; i < 2; i++) { |
886 | 118382 | put_bits(&s->pb, 1, s->c.field_select[0][i]); | |
887 | 118382 | mpeg1_encode_motion(s, | |
888 | 118382 | s->c.mv[0][i][0] - s->c.last_mv[0][i][0], | |
889 | s->f_code); | ||
890 | 118382 | mpeg1_encode_motion(s, | |
891 | 118382 | s->c.mv[0][i][1] - (s->c.last_mv[0][i][1] >> 1), | |
892 | s->f_code); | ||
893 | 118382 | s->c.last_mv[0][i][0] = s->c.mv[0][i][0]; | |
894 | 118382 | s->c.last_mv[0][i][1] = s->c.mv[0][i][1] * 2; | |
895 | } | ||
896 | } | ||
897 |
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|
92833 | if (s->c.mv_dir & MV_DIR_BACKWARD) { |
898 |
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|
179007 | for (i = 0; i < 2; i++) { |
899 | 119338 | put_bits(&s->pb, 1, s->c.field_select[1][i]); | |
900 | 119338 | mpeg1_encode_motion(s, | |
901 | 119338 | s->c.mv[1][i][0] - s->c.last_mv[1][i][0], | |
902 | s->b_code); | ||
903 | 119338 | mpeg1_encode_motion(s, | |
904 | 119338 | s->c.mv[1][i][1] - (s->c.last_mv[1][i][1] >> 1), | |
905 | s->b_code); | ||
906 | 119338 | s->c.last_mv[1][i][0] = s->c.mv[1][i][0]; | |
907 | 119338 | s->c.last_mv[1][i][1] = s->c.mv[1][i][1] * 2; | |
908 | } | ||
909 | } | ||
910 | } | ||
911 | 580943 | s->mv_bits += get_bits_diff(s); | |
912 |
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|
580943 | if (cbp) { |
913 |
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|
386292 | if (chroma_y_shift) { |
914 | 206130 | put_bits(&s->pb, | |
915 | 206130 | ff_mpeg12_mbPatTable[cbp][1], | |
916 | 206130 | ff_mpeg12_mbPatTable[cbp][0]); | |
917 | } else { | ||
918 | 180162 | put_bits(&s->pb, | |
919 | 180162 | ff_mpeg12_mbPatTable[cbp >> 2][1], | |
920 | 180162 | ff_mpeg12_mbPatTable[cbp >> 2][0]); | |
921 | 180162 | put_sbits(&s->pb, 2, cbp); | |
922 | } | ||
923 | } | ||
924 | } | ||
925 |
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|
13723285 | for (i = 0; i < mb_block_count; i++) |
926 |
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|
11946332 | if (cbp & (1 << (mb_block_count - 1 - i))) |
927 | 7011737 | mpeg1_encode_block(s, block[i], i); | |
928 | 1776953 | s->c.mb_skip_run = 0; | |
929 |
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|
1776953 | if (s->c.mb_intra) |
930 | 474692 | s->i_tex_bits += get_bits_diff(s); | |
931 | else | ||
932 | 1302261 | s->p_tex_bits += get_bits_diff(s); | |
933 | } | ||
934 | 1910478 | } | |
935 | |||
936 | 1910478 | static void mpeg12_encode_mb(MPVEncContext *const s, int16_t block[][64], | |
937 | int motion_x, int motion_y) | ||
938 | { | ||
939 |
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|
1910478 | if (!s->c.mb_intra) |
940 | 1435786 | s->c.last_dc[0] = s->c.last_dc[1] = s->c.last_dc[2] = 128 << s->c.intra_dc_precision; | |
941 |
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|
1910478 | if (s->c.chroma_format == CHROMA_420) |
942 | 1267523 | mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6, 1); | |
943 | else | ||
944 | 642955 | mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8, 0); | |
945 | 1910478 | } | |
946 | |||
947 | 55 | static av_cold void mpeg12_encode_init_static(void) | |
948 | { | ||
949 | 55 | ff_rl_init_level_run(mpeg12_max_level, mpeg12_index_run, | |
950 | ff_mpeg12_run, ff_mpeg12_level, MPEG12_RL_NB_ELEMS); | ||
951 | |||
952 | 55 | ff_mpeg1_init_uni_ac_vlc(mpeg12_max_level, mpeg12_index_run, | |
953 | ff_mpeg1_vlc_table, uni_mpeg1_ac_vlc_len); | ||
954 | 55 | ff_mpeg1_init_uni_ac_vlc(mpeg12_max_level, mpeg12_index_run, | |
955 | ff_mpeg2_vlc_table, uni_mpeg2_ac_vlc_len); | ||
956 | |||
957 | /* build unified dc encoding tables */ | ||
958 |
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28160 | for (int i = -255; i < 256; i++) { |
959 | int adiff, index; | ||
960 | int bits, code; | ||
961 | 28105 | int diff = i; | |
962 | |||
963 | 28105 | adiff = FFABS(diff); | |
964 |
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|
28105 | if (diff < 0) |
965 | 14025 | diff--; | |
966 | 28105 | index = av_log2(2 * adiff); | |
967 | |||
968 | 28105 | bits = ff_mpeg12_vlc_dc_lum_bits[index] + index; | |
969 | 28105 | code = (ff_mpeg12_vlc_dc_lum_code[index] << index) + | |
970 | 28105 | av_zero_extend(diff, index); | |
971 | 28105 | mpeg1_lum_dc_uni[i + 255] = bits + (code << 8); | |
972 | |||
973 | 28105 | bits = ff_mpeg12_vlc_dc_chroma_bits[index] + index; | |
974 | 28105 | code = (ff_mpeg12_vlc_dc_chroma_code[index] << index) + | |
975 | 28105 | av_zero_extend(diff, index); | |
976 | 28105 | mpeg1_chr_dc_uni[i + 255] = bits + (code << 8); | |
977 | } | ||
978 | |||
979 |
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440 | for (int f_code = 1; f_code <= MAX_FCODE; f_code++) |
980 |
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6308610 | for (int mv = -MAX_DMV; mv <= MAX_DMV; mv++) { |
981 | int len; | ||
982 | |||
983 |
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6308225 | if (mv == 0) { |
984 | 385 | len = 1; /* ff_mpeg12_mbMotionVectorTable[0][1] */ | |
985 | } else { | ||
986 | int val, bit_size, code; | ||
987 | |||
988 | 6307840 | bit_size = f_code - 1; | |
989 | |||
990 | 6307840 | val = mv; | |
991 |
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6307840 | if (val < 0) |
992 | 3153920 | val = -val; | |
993 | 6307840 | val--; | |
994 | 6307840 | code = (val >> bit_size) + 1; | |
995 |
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|
6307840 | if (code < 17) |
996 | 223520 | len = ff_mpeg12_mbMotionVectorTable[code][1] + | |
997 | 1 + bit_size; | ||
998 | else | ||
999 | 6084320 | len = 10 /* ff_mpeg12_mbMotionVectorTable[16][1] */ + | |
1000 | 2 + bit_size; | ||
1001 | } | ||
1002 | |||
1003 | 6308225 | mv_penalty[f_code][mv + MAX_DMV] = len; | |
1004 | } | ||
1005 | |||
1006 | |||
1007 |
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440 | for (int f_code = MAX_FCODE; f_code > 0; f_code--) |
1008 |
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|
223905 | for (int mv = -(8 << f_code); mv < (8 << f_code); mv++) |
1009 | 223520 | fcode_tab[mv + MAX_MV] = f_code; | |
1010 | 55 | } | |
1011 | |||
1012 | 55 | static av_cold int find_frame_rate_index(AVCodecContext *avctx, MPEG12EncContext *mpeg12) | |
1013 | { | ||
1014 | 55 | AVRational bestq = (AVRational) {0, 0}; | |
1015 | AVRational ext; | ||
1016 | 55 | AVRational target = av_inv_q(avctx->time_base); | |
1017 | |||
1018 |
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500 | for (int i = 1; i < 14; i++) { |
1019 |
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|
499 | if (avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL && |
1020 | i >= 9) | ||
1021 | 54 | break; | |
1022 | |||
1023 |
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|
2225 | for (ext.num = 1; ext.num <= 4; ext.num++) { |
1024 |
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|
58740 | for (ext.den = 1; ext.den <= 32; ext.den++) { |
1025 | 56960 | AVRational q = av_mul_q(ext, ff_mpeg12_frame_rate_tab[i]); | |
1026 | |||
1027 |
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|
56960 | if (avctx->codec_id != AV_CODEC_ID_MPEG2VIDEO && (ext.den!=1 || ext.num!=1)) |
1028 | 26170 | continue; | |
1029 |
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|
45784 | if (av_gcd(ext.den, ext.num) != 1) |
1030 | 14994 | continue; | |
1031 | |||
1032 |
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|
30790 | if ( bestq.num==0 |
1033 |
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30735 | || av_nearer_q(target, bestq, q) < 0 |
1034 |
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30597 | || ext.num==1 && ext.den==1 && av_nearer_q(target, bestq, q) == 0) { |
1035 | 193 | bestq = q; | |
1036 | 193 | mpeg12->frame_rate_index = i; | |
1037 | 193 | mpeg12->frame_rate_ext.num = ext.num; | |
1038 | 193 | mpeg12->frame_rate_ext.den = ext.den; | |
1039 | } | ||
1040 | } | ||
1041 | } | ||
1042 | } | ||
1043 | |||
1044 |
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55 | if (av_cmp_q(target, bestq)) |
1045 | 1 | return -1; | |
1046 | else | ||
1047 | 54 | return 0; | |
1048 | } | ||
1049 | |||
1050 | 55 | static av_cold int encode_init(AVCodecContext *avctx) | |
1051 | { | ||
1052 | static AVOnce init_static_once = AV_ONCE_INIT; | ||
1053 | 55 | MPEG12EncContext *const mpeg12 = avctx->priv_data; | |
1054 | 55 | MPVMainEncContext *const m = &mpeg12->mpeg; | |
1055 | 55 | MPVEncContext *const s = &m->s; | |
1056 | int ret; | ||
1057 |
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55 | int max_size = avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO ? 16383 : 4095; |
1058 | |||
1059 |
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55 | if (avctx->width > max_size || avctx->height > max_size) { |
1060 | ✗ | av_log(avctx, AV_LOG_ERROR, "%s does not support resolutions above %dx%d\n", | |
1061 | ✗ | CONFIG_SMALL ? avctx->codec->name : avctx->codec->long_name, | |
1062 | max_size, max_size); | ||
1063 | ✗ | return AVERROR(EINVAL); | |
1064 | } | ||
1065 |
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55 | if ((avctx->width & 0xFFF) == 0 && (avctx->height & 0xFFF) == 1) { |
1066 | ✗ | av_log(avctx, AV_LOG_ERROR, "Width / Height is invalid for MPEG2\n"); | |
1067 | ✗ | return AVERROR(EINVAL); | |
1068 | } | ||
1069 | |||
1070 |
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55 | if (avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) { |
1071 |
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54 | if ((avctx->width & 0xFFF) == 0 || (avctx->height & 0xFFF) == 0) { |
1072 | ✗ | av_log(avctx, AV_LOG_ERROR, "Width or Height are not allowed to be multiples of 4096\n" | |
1073 | "add '-strict %d' if you want to use them anyway.\n", FF_COMPLIANCE_UNOFFICIAL); | ||
1074 | ✗ | return AVERROR(EINVAL); | |
1075 | } | ||
1076 | } | ||
1077 | |||
1078 |
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55 | if (s->c.q_scale_type == 1) { |
1079 |
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1 | if (avctx->qmax > 28) { |
1080 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1081 | "non linear quant only supports qmax <= 28 currently\n"); | ||
1082 | ✗ | return AVERROR_PATCHWELCOME; | |
1083 | } | ||
1084 | } | ||
1085 | |||
1086 |
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55 | if (avctx->profile == AV_PROFILE_UNKNOWN) { |
1087 |
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55 | if (avctx->level != AV_LEVEL_UNKNOWN) { |
1088 | ✗ | av_log(avctx, AV_LOG_ERROR, "Set profile and level\n"); | |
1089 | ✗ | return AVERROR(EINVAL); | |
1090 | } | ||
1091 | /* Main or 4:2:2 */ | ||
1092 | 55 | avctx->profile = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? AV_PROFILE_MPEG2_MAIN | |
1093 |
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55 | : AV_PROFILE_MPEG2_422; |
1094 | } | ||
1095 |
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55 | if (avctx->level == AV_LEVEL_UNKNOWN) { |
1096 |
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55 | if (avctx->profile == AV_PROFILE_MPEG2_422) { /* 4:2:2 */ |
1097 |
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5 | if (avctx->width <= 720 && avctx->height <= 608) |
1098 | 5 | avctx->level = 5; /* Main */ | |
1099 | else | ||
1100 | ✗ | avctx->level = 2; /* High */ | |
1101 | } else { | ||
1102 |
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50 | if (avctx->profile != AV_PROFILE_MPEG2_HIGH && |
1103 |
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50 | avctx->pix_fmt != AV_PIX_FMT_YUV420P) { |
1104 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1105 | "Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n"); | ||
1106 | ✗ | return AVERROR(EINVAL); | |
1107 | } | ||
1108 |
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50 | if (avctx->width <= 720 && avctx->height <= 576) |
1109 | 49 | avctx->level = 8; /* Main */ | |
1110 |
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1 | else if (avctx->width <= 1440) |
1111 | 1 | avctx->level = 6; /* High 1440 */ | |
1112 | else | ||
1113 | ✗ | avctx->level = 4; /* High */ | |
1114 | } | ||
1115 | } | ||
1116 | |||
1117 | 55 | m->encode_picture_header = mpeg1_encode_picture_header; | |
1118 | 55 | s->encode_mb = mpeg12_encode_mb; | |
1119 | |||
1120 | 55 | s->me.mv_penalty = mv_penalty; | |
1121 | 55 | m->fcode_tab = fcode_tab + MAX_MV; | |
1122 |
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55 | if (avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO) { |
1123 | 11 | s->min_qcoeff = -255; | |
1124 | 11 | s->max_qcoeff = 255; | |
1125 | } else { | ||
1126 | 44 | s->min_qcoeff = -2047; | |
1127 | 44 | s->max_qcoeff = 2047; | |
1128 | 44 | s->mpeg_quant = 1; | |
1129 | } | ||
1130 |
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55 | if (s->c.intra_vlc_format) { |
1131 | 13 | s->intra_ac_vlc_length = | |
1132 | 13 | s->intra_ac_vlc_last_length = uni_mpeg2_ac_vlc_len; | |
1133 | } else { | ||
1134 | 42 | s->intra_ac_vlc_length = | |
1135 | 42 | s->intra_ac_vlc_last_length = uni_mpeg1_ac_vlc_len; | |
1136 | } | ||
1137 | 55 | s->inter_ac_vlc_length = | |
1138 | 55 | s->inter_ac_vlc_last_length = uni_mpeg1_ac_vlc_len; | |
1139 | |||
1140 | 55 | ret = ff_mpv_encode_init(avctx); | |
1141 |
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55 | if (ret < 0) |
1142 | ✗ | return ret; | |
1143 | |||
1144 |
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55 | if (avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO && |
1145 |
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11 | s->c.thread_context[s->c.slice_context_count - 1]->start_mb_y > |
1146 | SLICE_MAX_START_CODE - SLICE_MIN_START_CODE) { | ||
1147 | // MPEG-1 slices must not start at a MB row number that would make | ||
1148 | // their start code > SLICE_MAX_START_CODE. So make the last slice | ||
1149 | // bigger if needed and evenly distribute the first 174 rows. | ||
1150 | static_assert(MAX_THREADS <= 1 + SLICE_MAX_START_CODE - SLICE_MIN_START_CODE, | ||
1151 | "With more than 175 slice contexts, we have to handle " | ||
1152 | "the case in which there is no work to do for some " | ||
1153 | "slice contexts."); | ||
1154 | ✗ | const int mb_height = SLICE_MAX_START_CODE - SLICE_MIN_START_CODE; | |
1155 | ✗ | const int nb_slices = s->c.slice_context_count - 1; | |
1156 | |||
1157 | ✗ | s->c.thread_context[nb_slices]->start_mb_y = mb_height; | |
1158 | |||
1159 | av_assert1(nb_slices >= 1); | ||
1160 | ✗ | for (int i = 0; i < nb_slices; i++) { | |
1161 | ✗ | s->c.thread_context[i]->start_mb_y = | |
1162 | ✗ | (mb_height * (i ) + nb_slices / 2) / nb_slices; | |
1163 | ✗ | s->c.thread_context[i]->end_mb_y = | |
1164 | ✗ | (mb_height * (i + 1) + nb_slices / 2) / nb_slices; | |
1165 | } | ||
1166 | } | ||
1167 | |||
1168 |
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55 | if (find_frame_rate_index(avctx, mpeg12) < 0) { |
1169 |
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1 | if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
1170 | ✗ | av_log(avctx, AV_LOG_ERROR, "MPEG-1/2 does not support %d/%d fps\n", | |
1171 | avctx->time_base.den, avctx->time_base.num); | ||
1172 | ✗ | return AVERROR(EINVAL); | |
1173 | } else { | ||
1174 | 1 | av_log(avctx, AV_LOG_INFO, | |
1175 | "MPEG-1/2 does not support %d/%d fps, there may be AV sync issues\n", | ||
1176 | avctx->time_base.den, avctx->time_base.num); | ||
1177 | } | ||
1178 | } | ||
1179 | |||
1180 |
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55 | if (avctx->rc_max_rate && |
1181 |
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2 | avctx->rc_min_rate == avctx->rc_max_rate && |
1182 | 2 | 90000LL * (avctx->rc_buffer_size - 1) > | |
1183 |
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2 | avctx->rc_max_rate * 0xFFFFLL) { |
1184 | 1 | av_log(avctx, AV_LOG_INFO, | |
1185 | "Warning vbv_delay will be set to 0xFFFF (=VBR) as the " | ||
1186 | "specified vbv buffer is too large for the given bitrate!\n"); | ||
1187 | } | ||
1188 | |||
1189 |
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55 | if (mpeg12->drop_frame_timecode) |
1190 | ✗ | mpeg12->tc.flags |= AV_TIMECODE_FLAG_DROPFRAME; | |
1191 |
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55 | if (mpeg12->drop_frame_timecode && mpeg12->frame_rate_index != 4) { |
1192 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
1193 | "Drop frame time code only allowed with 1001/30000 fps\n"); | ||
1194 | ✗ | return AVERROR(EINVAL); | |
1195 | } | ||
1196 | |||
1197 |
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55 | if (mpeg12->tc_opt_str) { |
1198 | 6 | AVRational rate = ff_mpeg12_frame_rate_tab[mpeg12->frame_rate_index]; | |
1199 | 6 | int ret = av_timecode_init_from_string(&mpeg12->tc, rate, mpeg12->tc_opt_str, avctx); | |
1200 |
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6 | if (ret < 0) |
1201 | ✗ | return ret; | |
1202 | 6 | mpeg12->drop_frame_timecode = !!(mpeg12->tc.flags & AV_TIMECODE_FLAG_DROPFRAME); | |
1203 | 6 | mpeg12->timecode_frame_start = mpeg12->tc.start; | |
1204 | } else { | ||
1205 | 49 | mpeg12->timecode_frame_start = 0; // default is -1 | |
1206 | } | ||
1207 | |||
1208 | 55 | ff_thread_once(&init_static_once, mpeg12_encode_init_static); | |
1209 | |||
1210 | 55 | return 0; | |
1211 | } | ||
1212 | |||
1213 | #define OFFSET(x) offsetof(MPEG12EncContext, x) | ||
1214 | #define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM | ||
1215 | #define COMMON_OPTS \ | ||
1216 | { "gop_timecode", "MPEG GOP Timecode in hh:mm:ss[:;.]ff format. Overrides timecode_frame_start.", \ | ||
1217 | OFFSET(tc_opt_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE },\ | ||
1218 | { "drop_frame_timecode", "Timecode is in drop frame format.", \ | ||
1219 | OFFSET(drop_frame_timecode), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \ | ||
1220 | { "scan_offset", "Reserve space for SVCD scan offset user data.", \ | ||
1221 | OFFSET(scan_offset), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \ | ||
1222 | { "timecode_frame_start", "GOP timecode frame start number, in non-drop-frame format", \ | ||
1223 | OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.i64 = -1 }, -1, INT64_MAX, VE}, \ | ||
1224 | FF_MPV_COMMON_BFRAME_OPTS | ||
1225 | |||
1226 | static const AVOption mpeg1_options[] = { | ||
1227 | COMMON_OPTS | ||
1228 | FF_MPV_COMMON_OPTS | ||
1229 | FF_MPV_COMMON_MOTION_EST_OPTS | ||
1230 | { NULL }, | ||
1231 | }; | ||
1232 | |||
1233 | static const AVOption mpeg2_options[] = { | ||
1234 | COMMON_OPTS | ||
1235 | { "intra_vlc", "Use MPEG-2 intra VLC table.", | ||
1236 | FF_MPV_OFFSET(c.intra_vlc_format), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, | ||
1237 | { "non_linear_quant", "Use nonlinear quantizer.", FF_MPV_OFFSET(c.q_scale_type), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, | ||
1238 | { "alternate_scan", "Enable alternate scantable.", FF_MPV_OFFSET(c.alternate_scan), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, | ||
1239 | { "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE }, | ||
1240 | { "seq_disp_ext", "Write sequence_display_extension blocks.", OFFSET(seq_disp_ext), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, .unit = "seq_disp_ext" }, | ||
1241 | { "auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, VE, .unit = "seq_disp_ext" }, | ||
1242 | { "never", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, VE, .unit = "seq_disp_ext" }, | ||
1243 | { "always", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, VE, .unit = "seq_disp_ext" }, | ||
1244 | { "video_format", "Video_format in the sequence_display_extension indicating the source of the video.", OFFSET(video_format), AV_OPT_TYPE_INT, { .i64 = VIDEO_FORMAT_UNSPECIFIED }, 0, 7, VE, .unit = "video_format" }, | ||
1245 | { "component", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_COMPONENT }, 0, 0, VE, .unit = "video_format" }, | ||
1246 | { "pal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_PAL }, 0, 0, VE, .unit = "video_format" }, | ||
1247 | { "ntsc", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_NTSC }, 0, 0, VE, .unit = "video_format" }, | ||
1248 | { "secam", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_SECAM }, 0, 0, VE, .unit = "video_format" }, | ||
1249 | { "mac", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_MAC }, 0, 0, VE, .unit = "video_format" }, | ||
1250 | { "unspecified", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = VIDEO_FORMAT_UNSPECIFIED}, 0, 0, VE, .unit = "video_format" }, | ||
1251 | #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, { .i64 = value }, 0, 0, VE, .unit = "avctx.level" | ||
1252 | { LEVEL("high", 4) }, | ||
1253 | { LEVEL("high1440", 6) }, | ||
1254 | { LEVEL("main", 8) }, | ||
1255 | { LEVEL("low", 10) }, | ||
1256 | #undef LEVEL | ||
1257 | FF_MPV_COMMON_OPTS | ||
1258 | FF_MPV_COMMON_MOTION_EST_OPTS | ||
1259 | FF_MPEG2_PROFILE_OPTS | ||
1260 | { NULL }, | ||
1261 | }; | ||
1262 | |||
1263 | #define mpeg12_class(x) \ | ||
1264 | static const AVClass mpeg ## x ## _class = { \ | ||
1265 | .class_name = "mpeg" # x "video encoder", \ | ||
1266 | .item_name = av_default_item_name, \ | ||
1267 | .option = mpeg ## x ## _options, \ | ||
1268 | .version = LIBAVUTIL_VERSION_INT, \ | ||
1269 | }; | ||
1270 | |||
1271 | mpeg12_class(1) | ||
1272 | mpeg12_class(2) | ||
1273 | |||
1274 | const FFCodec ff_mpeg1video_encoder = { | ||
1275 | .p.name = "mpeg1video", | ||
1276 | CODEC_LONG_NAME("MPEG-1 video"), | ||
1277 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1278 | .p.id = AV_CODEC_ID_MPEG1VIDEO, | ||
1279 | .priv_data_size = sizeof(MPEG12EncContext), | ||
1280 | .init = encode_init, | ||
1281 | FF_CODEC_ENCODE_CB(ff_mpv_encode_picture), | ||
1282 | .close = ff_mpv_encode_end, | ||
1283 | CODEC_FRAMERATES_ARRAY(ff_mpeg12_frame_rate_tab + 1), | ||
1284 | CODEC_PIXFMTS(AV_PIX_FMT_YUV420P), | ||
1285 | .color_ranges = AVCOL_RANGE_MPEG, | ||
1286 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | | ||
1287 | AV_CODEC_CAP_SLICE_THREADS | | ||
1288 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
1289 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1290 | .p.priv_class = &mpeg1_class, | ||
1291 | }; | ||
1292 | |||
1293 | const FFCodec ff_mpeg2video_encoder = { | ||
1294 | .p.name = "mpeg2video", | ||
1295 | CODEC_LONG_NAME("MPEG-2 video"), | ||
1296 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
1297 | .p.id = AV_CODEC_ID_MPEG2VIDEO, | ||
1298 | .priv_data_size = sizeof(MPEG12EncContext), | ||
1299 | .init = encode_init, | ||
1300 | FF_CODEC_ENCODE_CB(ff_mpv_encode_picture), | ||
1301 | .close = ff_mpv_encode_end, | ||
1302 | CODEC_FRAMERATES_ARRAY(ff_mpeg2_frame_rate_tab), | ||
1303 | CODEC_PIXFMTS(AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P), | ||
1304 | .color_ranges = AVCOL_RANGE_MPEG, | ||
1305 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | | ||
1306 | AV_CODEC_CAP_SLICE_THREADS | | ||
1307 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
1308 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
1309 | .p.priv_class = &mpeg2_class, | ||
1310 | }; | ||
1311 | #endif /* CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER */ | ||
1312 |