2 * Mpeg video formats-related defines and utility functions
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/common.h"
24 #include "libavutil/frame.h"
25 #include "libavutil/pixdesc.h"
26 #include "libavutil/motion_vector.h"
27 #include "libavutil/avassert.h"
30 #include "mpegutils.h"
32 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
34 int motion_x, int motion_y, int motion_scale,
37 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
38 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
39 mb->motion_x = motion_x;
40 mb->motion_y = motion_y;
41 mb->motion_scale = motion_scale;
44 mb->src_x = dst_x + motion_x / motion_scale;
45 mb->src_y = dst_y + motion_y / motion_scale;
46 mb->source = direction ? 1 : -1;
47 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
51 void ff_draw_horiz_band(AVCodecContext *avctx,
52 AVFrame *cur, AVFrame *last,
53 int y, int h, int picture_structure,
54 int first_field, int low_delay)
56 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
57 int vshift = desc->log2_chroma_h;
58 const int field_pic = picture_structure != PICT_FRAME;
64 h = FFMIN(h, avctx->height - y);
66 if (field_pic && first_field &&
67 !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
70 if (avctx->draw_horiz_band) {
72 int offset[AV_NUM_DATA_POINTERS];
75 if (cur->pict_type == AV_PICTURE_TYPE_B || low_delay ||
76 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
83 if (cur->pict_type == AV_PICTURE_TYPE_B &&
84 picture_structure == PICT_FRAME &&
85 avctx->codec_id != AV_CODEC_ID_SVQ3) {
86 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
89 offset[0]= y * src->linesize[0];
91 offset[2]= (y >> vshift) * src->linesize[1];
92 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
98 avctx->draw_horiz_band(avctx, src, offset,
99 y, picture_structure, h);
103 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
104 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
106 int mb_width, int mb_height, int mb_stride, int quarter_sample)
108 if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
109 const int shift = 1 + quarter_sample;
110 const int scale = 1 << shift;
111 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
112 const int mv_stride = (mb_width << mv_sample_log2) +
113 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
114 int mb_x, mb_y, mbcount = 0;
116 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
117 * for the maximum number of MB (4 MB in case of IS_8x8) */
118 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
122 for (mb_y = 0; mb_y < mb_height; mb_y++) {
123 for (mb_x = 0; mb_x < mb_width; mb_x++) {
124 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
125 for (direction = 0; direction < 2; direction++) {
126 if (!USES_LIST(mb_type, direction))
128 if (IS_8X8(mb_type)) {
129 for (i = 0; i < 4; i++) {
130 int sx = mb_x * 16 + 4 + 8 * (i & 1);
131 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
132 int xy = (mb_x * 2 + (i & 1) +
133 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
134 int mx = motion_val[direction][xy][0];
135 int my = motion_val[direction][xy][1];
136 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
138 } else if (IS_16X8(mb_type)) {
139 for (i = 0; i < 2; i++) {
140 int sx = mb_x * 16 + 8;
141 int sy = mb_y * 16 + 4 + 8 * i;
142 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
143 int mx = motion_val[direction][xy][0];
144 int my = motion_val[direction][xy][1];
146 if (IS_INTERLACED(mb_type))
149 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
151 } else if (IS_8X16(mb_type)) {
152 for (i = 0; i < 2; i++) {
153 int sx = mb_x * 16 + 4 + 8 * i;
154 int sy = mb_y * 16 + 8;
155 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
156 int mx = motion_val[direction][xy][0];
157 int my = motion_val[direction][xy][1];
159 if (IS_INTERLACED(mb_type))
162 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
165 int sx = mb_x * 16 + 8;
166 int sy = mb_y * 16 + 8;
167 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
168 int mx = motion_val[direction][xy][0];
169 int my = motion_val[direction][xy][1];
170 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
179 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
180 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
185 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
191 /* TODO: export all the following to make them accessible for users (and filters) */
192 if (avctx->hwaccel || !mbtype_table)
196 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
199 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
200 av_get_picture_type_char(pict->pict_type));
201 for (y = 0; y < mb_height; y++) {
202 for (x = 0; x < mb_width; x++) {
203 if (avctx->debug & FF_DEBUG_SKIP) {
204 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
207 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
209 if (avctx->debug & FF_DEBUG_QP) {
210 av_log(avctx, AV_LOG_DEBUG, "%2d",
211 qscale_table[x + y * mb_stride]);
213 if (avctx->debug & FF_DEBUG_MB_TYPE) {
214 int mb_type = mbtype_table[x + y * mb_stride];
215 // Type & MV direction
217 av_log(avctx, AV_LOG_DEBUG, "P");
218 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
219 av_log(avctx, AV_LOG_DEBUG, "A");
220 else if (IS_INTRA4x4(mb_type))
221 av_log(avctx, AV_LOG_DEBUG, "i");
222 else if (IS_INTRA16x16(mb_type))
223 av_log(avctx, AV_LOG_DEBUG, "I");
224 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
225 av_log(avctx, AV_LOG_DEBUG, "d");
226 else if (IS_DIRECT(mb_type))
227 av_log(avctx, AV_LOG_DEBUG, "D");
228 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
229 av_log(avctx, AV_LOG_DEBUG, "g");
230 else if (IS_GMC(mb_type))
231 av_log(avctx, AV_LOG_DEBUG, "G");
232 else if (IS_SKIP(mb_type))
233 av_log(avctx, AV_LOG_DEBUG, "S");
234 else if (!USES_LIST(mb_type, 1))
235 av_log(avctx, AV_LOG_DEBUG, ">");
236 else if (!USES_LIST(mb_type, 0))
237 av_log(avctx, AV_LOG_DEBUG, "<");
239 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
240 av_log(avctx, AV_LOG_DEBUG, "X");
245 av_log(avctx, AV_LOG_DEBUG, "+");
246 else if (IS_16X8(mb_type))
247 av_log(avctx, AV_LOG_DEBUG, "-");
248 else if (IS_8X16(mb_type))
249 av_log(avctx, AV_LOG_DEBUG, "|");
250 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
251 av_log(avctx, AV_LOG_DEBUG, " ");
253 av_log(avctx, AV_LOG_DEBUG, "?");
256 if (IS_INTERLACED(mb_type))
257 av_log(avctx, AV_LOG_DEBUG, "=");
259 av_log(avctx, AV_LOG_DEBUG, " ");
262 av_log(avctx, AV_LOG_DEBUG, "\n");
267 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
271 int h_chroma_shift, v_chroma_shift, block_height;
272 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
273 const int mv_stride = (mb_width << mv_sample_log2) +
274 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
277 *low_delay = 0; // needed to see the vectors without trashing the buffers
279 ret = av_pix_fmt_get_chroma_sub_sample (avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
283 av_frame_make_writable(pict);
286 block_height = 16 >> v_chroma_shift;
288 for (mb_y = 0; mb_y < mb_height; mb_y++) {
290 for (mb_x = 0; mb_x < mb_width; mb_x++) {
291 const int mb_index = mb_x + mb_y * mb_stride;
292 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
293 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
294 0x0101010101010101ULL;
296 for (y = 0; y < block_height; y++) {
297 *(uint64_t *)(pict->data[1] + 8 * mb_x +
298 (block_height * mb_y + y) *
299 pict->linesize[1]) = c;
300 *(uint64_t *)(pict->data[2] + 8 * mb_x +
301 (block_height * mb_y + y) *
302 pict->linesize[2]) = c;
305 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
307 int mb_type = mbtype_table[mb_index];
310 #define COLOR(theta, r) \
311 u = (int)(128 + r * cos(theta * M_PI / 180)); \
312 v = (int)(128 + r * sin(theta * M_PI / 180));
316 if (IS_PCM(mb_type)) {
318 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
319 IS_INTRA16x16(mb_type)) {
321 } else if (IS_INTRA4x4(mb_type)) {
323 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
325 } else if (IS_DIRECT(mb_type)) {
327 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
329 } else if (IS_GMC(mb_type)) {
331 } else if (IS_SKIP(mb_type)) {
333 } else if (!USES_LIST(mb_type, 1)) {
335 } else if (!USES_LIST(mb_type, 0)) {
338 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
342 u *= 0x0101010101010101ULL;
343 v *= 0x0101010101010101ULL;
344 for (y = 0; y < block_height; y++) {
345 *(uint64_t *)(pict->data[1] + 8 * mb_x +
346 (block_height * mb_y + y) * pict->linesize[1]) = u;
347 *(uint64_t *)(pict->data[2] + 8 * mb_x +
348 (block_height * mb_y + y) * pict->linesize[2]) = v;
352 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
353 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
354 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
355 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
356 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
358 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
359 for (y = 0; y < 16; y++)
360 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
361 pict->linesize[0]] ^= 0x80;
363 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
364 int dm = 1 << (mv_sample_log2 - 2);
365 for (i = 0; i < 4; i++) {
366 int sx = mb_x * 16 + 8 * (i & 1);
367 int sy = mb_y * 16 + 8 * (i >> 1);
368 int xy = (mb_x * 2 + (i & 1) +
369 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
371 int32_t *mv = (int32_t *) &motion_val[0][xy];
372 if (mv[0] != mv[dm] ||
373 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
374 for (y = 0; y < 8; y++)
375 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
376 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
377 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
378 pict->linesize[0]) ^= 0x8080808080808080ULL;
382 if (IS_INTERLACED(mb_type) &&
383 avctx->codec->id == AV_CODEC_ID_H264) {
388 mbskip_table[mb_index] = 0;