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264 lines
11 KiB
264 lines
11 KiB
/* |
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* Mpeg video formats-related defines and utility functions |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <stdint.h> |
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#include "libavutil/common.h" |
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#include "libavutil/frame.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/motion_vector.h" |
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#include "libavutil/avassert.h" |
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#include "avcodec.h" |
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#include "mpegutils.h" |
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static int add_mb(AVMotionVector *mb, uint32_t mb_type, |
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int dst_x, int dst_y, |
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int motion_x, int motion_y, int motion_scale, |
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int direction) |
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{ |
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mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16; |
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mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16; |
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mb->motion_x = motion_x; |
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mb->motion_y = motion_y; |
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mb->motion_scale = motion_scale; |
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mb->dst_x = dst_x; |
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mb->dst_y = dst_y; |
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mb->src_x = dst_x + motion_x / motion_scale; |
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mb->src_y = dst_y + motion_y / motion_scale; |
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mb->source = direction ? 1 : -1; |
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mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here? |
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return 1; |
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} |
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void ff_draw_horiz_band(AVCodecContext *avctx, |
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AVFrame *cur, AVFrame *last, |
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int y, int h, int picture_structure, |
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int first_field, int low_delay) |
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{ |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); |
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int vshift = desc->log2_chroma_h; |
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const int field_pic = picture_structure != PICT_FRAME; |
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if (field_pic) { |
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h <<= 1; |
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y <<= 1; |
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} |
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h = FFMIN(h, avctx->height - y); |
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if (field_pic && first_field && |
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!(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD)) |
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return; |
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if (avctx->draw_horiz_band) { |
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AVFrame *src; |
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int offset[AV_NUM_DATA_POINTERS]; |
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int i; |
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if (cur->pict_type == AV_PICTURE_TYPE_B || low_delay || |
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(avctx->slice_flags & SLICE_FLAG_CODED_ORDER)) |
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src = cur; |
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else if (last) |
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src = last; |
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else |
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return; |
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if (cur->pict_type == AV_PICTURE_TYPE_B && |
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picture_structure == PICT_FRAME && |
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avctx->codec_id != AV_CODEC_ID_SVQ3) { |
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for (i = 0; i < AV_NUM_DATA_POINTERS; i++) |
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offset[i] = 0; |
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} else { |
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offset[0]= y * src->linesize[0]; |
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offset[1]= |
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offset[2]= (y >> vshift) * src->linesize[1]; |
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for (i = 3; i < AV_NUM_DATA_POINTERS; i++) |
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offset[i] = 0; |
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} |
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emms_c(); |
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avctx->draw_horiz_band(avctx, src, offset, |
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y, picture_structure, h); |
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} |
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} |
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void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table, |
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uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2], |
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int mb_width, int mb_height, int mb_stride, int quarter_sample) |
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{ |
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if ((avctx->export_side_data & AV_CODEC_EXPORT_DATA_MVS) && mbtype_table && motion_val[0]) { |
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const int shift = 1 + quarter_sample; |
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const int scale = 1 << shift; |
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const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1; |
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const int mv_stride = (mb_width << mv_sample_log2) + |
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(avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1); |
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int mb_x, mb_y, mbcount = 0; |
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/* size is width * height * 2 * 4 where 2 is for directions and 4 is |
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* for the maximum number of MB (4 MB in case of IS_8x8) */ |
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AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector)); |
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if (!mvs) |
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return; |
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for (mb_y = 0; mb_y < mb_height; mb_y++) { |
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for (mb_x = 0; mb_x < mb_width; mb_x++) { |
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int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride]; |
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for (direction = 0; direction < 2; direction++) { |
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if (!USES_LIST(mb_type, direction)) |
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continue; |
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if (IS_8X8(mb_type)) { |
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for (i = 0; i < 4; i++) { |
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int sx = mb_x * 16 + 4 + 8 * (i & 1); |
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int sy = mb_y * 16 + 4 + 8 * (i >> 1); |
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int xy = (mb_x * 2 + (i & 1) + |
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(mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1); |
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int mx = motion_val[direction][xy][0]; |
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int my = motion_val[direction][xy][1]; |
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mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction); |
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} |
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} else if (IS_16X8(mb_type)) { |
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for (i = 0; i < 2; i++) { |
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int sx = mb_x * 16 + 8; |
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int sy = mb_y * 16 + 4 + 8 * i; |
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int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1); |
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int mx = motion_val[direction][xy][0]; |
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int my = motion_val[direction][xy][1]; |
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if (IS_INTERLACED(mb_type)) |
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my *= 2; |
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mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction); |
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} |
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} else if (IS_8X16(mb_type)) { |
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for (i = 0; i < 2; i++) { |
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int sx = mb_x * 16 + 4 + 8 * i; |
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int sy = mb_y * 16 + 8; |
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int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1); |
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int mx = motion_val[direction][xy][0]; |
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int my = motion_val[direction][xy][1]; |
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if (IS_INTERLACED(mb_type)) |
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my *= 2; |
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mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction); |
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} |
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} else { |
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int sx = mb_x * 16 + 8; |
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int sy = mb_y * 16 + 8; |
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int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2; |
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int mx = motion_val[direction][xy][0]; |
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int my = motion_val[direction][xy][1]; |
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mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction); |
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} |
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} |
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} |
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} |
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if (mbcount) { |
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AVFrameSideData *sd; |
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av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number); |
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sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector)); |
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if (!sd) { |
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av_freep(&mvs); |
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return; |
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} |
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memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector)); |
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} |
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av_freep(&mvs); |
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} |
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/* TODO: export all the following to make them accessible for users (and filters) */ |
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if (avctx->hwaccel || !mbtype_table) |
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return; |
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if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) { |
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int x,y; |
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av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n", |
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av_get_picture_type_char(pict->pict_type)); |
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for (y = 0; y < mb_height; y++) { |
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for (x = 0; x < mb_width; x++) { |
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if (avctx->debug & FF_DEBUG_SKIP) { |
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int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0; |
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if (count > 9) |
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count = 9; |
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av_log(avctx, AV_LOG_DEBUG, "%1d", count); |
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} |
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if (avctx->debug & FF_DEBUG_QP) { |
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av_log(avctx, AV_LOG_DEBUG, "%2d", |
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qscale_table[x + y * mb_stride]); |
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} |
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if (avctx->debug & FF_DEBUG_MB_TYPE) { |
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int mb_type = mbtype_table[x + y * mb_stride]; |
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// Type & MV direction |
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if (IS_PCM(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "P"); |
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else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "A"); |
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else if (IS_INTRA4x4(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "i"); |
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else if (IS_INTRA16x16(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "I"); |
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else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "d"); |
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else if (IS_DIRECT(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "D"); |
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else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "g"); |
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else if (IS_GMC(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "G"); |
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else if (IS_SKIP(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "S"); |
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else if (!USES_LIST(mb_type, 1)) |
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av_log(avctx, AV_LOG_DEBUG, ">"); |
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else if (!USES_LIST(mb_type, 0)) |
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av_log(avctx, AV_LOG_DEBUG, "<"); |
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else { |
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av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); |
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av_log(avctx, AV_LOG_DEBUG, "X"); |
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} |
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// segmentation |
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if (IS_8X8(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "+"); |
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else if (IS_16X8(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "-"); |
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else if (IS_8X16(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "|"); |
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else if (IS_INTRA(mb_type) || IS_16X16(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, " "); |
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else |
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av_log(avctx, AV_LOG_DEBUG, "?"); |
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if (IS_INTERLACED(mb_type)) |
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av_log(avctx, AV_LOG_DEBUG, "="); |
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else |
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av_log(avctx, AV_LOG_DEBUG, " "); |
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} |
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} |
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av_log(avctx, AV_LOG_DEBUG, "\n"); |
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} |
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} |
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}
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