| /* |
| * Common mpeg video decoding code |
| * Copyright (c) 2000,2001 Fabrice Bellard |
| * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <limits.h> |
| |
| #include "config_components.h" |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/emms.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/internal.h" |
| #include "libavutil/video_enc_params.h" |
| |
| #include "avcodec.h" |
| #include "decode.h" |
| #include "h263.h" |
| #include "h264chroma.h" |
| #include "internal.h" |
| #include "mpegutils.h" |
| #include "mpegvideo.h" |
| #include "mpegvideodec.h" |
| #include "mpeg4videodec.h" |
| #include "libavutil/refstruct.h" |
| #include "thread.h" |
| #include "threadprogress.h" |
| #include "wmv2dec.h" |
| |
| #define H264_CHROMA_MC(OPNAME, OP)\ |
| static void OPNAME ## h264_chroma_mc1(uint8_t *dst /*align 8*/, const uint8_t *src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\ |
| {\ |
| const int A = (8-x) * (8-y);\ |
| const int B = ( x) * (8-y);\ |
| const int C = (8-x) * ( y);\ |
| const int D = ( x) * ( y);\ |
| \ |
| av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);\ |
| \ |
| if (D) {\ |
| for (int i = 0; i < h; ++i) {\ |
| OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\ |
| dst += stride;\ |
| src += stride;\ |
| }\ |
| } else if (B + C) {\ |
| const int E = B + C;\ |
| const int step = C ? stride : 1;\ |
| for (int i = 0; i < h; ++i) {\ |
| OP(dst[0], (A*src[0] + E*src[step+0]));\ |
| dst += stride;\ |
| src += stride;\ |
| }\ |
| } else {\ |
| for (int i = 0; i < h; ++i) {\ |
| OP(dst[0], (A*src[0]));\ |
| dst += stride;\ |
| src += stride;\ |
| }\ |
| }\ |
| }\ |
| |
| #define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1) |
| #define op_put(a, b) a = (((b) + 32)>>6) |
| |
| H264_CHROMA_MC(put_, op_put) |
| H264_CHROMA_MC(avg_, op_avg) |
| |
| av_cold int ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx) |
| { |
| enum ThreadingStatus thread_status; |
| |
| ff_mpv_common_defaults(s); |
| |
| s->avctx = avctx; |
| s->width = avctx->coded_width; |
| s->height = avctx->coded_height; |
| s->codec_id = avctx->codec->id; |
| s->workaround_bugs = avctx->workaround_bugs; |
| |
| /* convert fourcc to upper case */ |
| s->codec_tag = ff_toupper4(avctx->codec_tag); |
| |
| ff_mpv_idct_init(s); |
| |
| ff_h264chroma_init(&s->h264chroma, 8); //for lowres |
| s->h264chroma.avg_h264_chroma_pixels_tab[3] = avg_h264_chroma_mc1; |
| s->h264chroma.put_h264_chroma_pixels_tab[3] = put_h264_chroma_mc1; |
| |
| if (s->picture_pool) // VC-1 can call this multiple times |
| return 0; |
| |
| thread_status = ff_thread_sync_ref(avctx, offsetof(MpegEncContext, picture_pool)); |
| if (thread_status != FF_THREAD_IS_COPY) { |
| s->picture_pool = ff_mpv_alloc_pic_pool(thread_status != FF_THREAD_NO_FRAME_THREADING); |
| if (!s->picture_pool) |
| return AVERROR(ENOMEM); |
| } |
| return 0; |
| } |
| |
| int ff_mpeg_update_thread_context(AVCodecContext *dst, |
| const AVCodecContext *src) |
| { |
| MpegEncContext *const s1 = src->priv_data; |
| MpegEncContext *const s = dst->priv_data; |
| int ret = 0; |
| |
| if (dst == src) |
| return 0; |
| |
| av_assert0(s != s1); |
| |
| if (s->height != s1->height || s->width != s1->width || s->context_reinit) { |
| s->height = s1->height; |
| s->width = s1->width; |
| if ((ret = ff_mpv_common_frame_size_change(s)) < 0) |
| return ret; |
| ret = 1; |
| } |
| |
| s->quarter_sample = s1->quarter_sample; |
| |
| ff_mpv_replace_picture(&s->cur_pic, &s1->cur_pic); |
| ff_mpv_replace_picture(&s->last_pic, &s1->last_pic); |
| ff_mpv_replace_picture(&s->next_pic, &s1->next_pic); |
| |
| s->linesize = s1->linesize; |
| s->uvlinesize = s1->uvlinesize; |
| |
| // Error/bug resilience |
| s->workaround_bugs = s1->workaround_bugs; |
| |
| // MPEG-4 timing info |
| memcpy(&s->last_time_base, &s1->last_time_base, |
| (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) - |
| (char *) &s1->last_time_base); |
| |
| // B-frame info |
| s->low_delay = s1->low_delay; |
| |
| // MPEG-2/interlacing info |
| memcpy(&s->progressive_sequence, &s1->progressive_sequence, |
| (char *) &s1->first_field + sizeof(s1->first_field) - (char *) &s1->progressive_sequence); |
| |
| return ret; |
| } |
| |
| av_cold int ff_mpv_decode_close(AVCodecContext *avctx) |
| { |
| MpegEncContext *s = avctx->priv_data; |
| |
| av_refstruct_pool_uninit(&s->picture_pool); |
| ff_mpv_common_end(s); |
| return 0; |
| } |
| |
| av_cold int ff_mpv_common_frame_size_change(MpegEncContext *s) |
| { |
| int err = 0; |
| |
| if (!s->context_initialized) |
| return AVERROR(EINVAL); |
| |
| ff_mpv_free_context_frame(s); |
| |
| ff_mpv_unref_picture(&s->last_pic); |
| ff_mpv_unref_picture(&s->next_pic); |
| ff_mpv_unref_picture(&s->cur_pic); |
| |
| if ((s->width || s->height) && |
| (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0) |
| goto fail; |
| |
| /* set chroma shifts */ |
| err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, |
| &s->chroma_x_shift, |
| &s->chroma_y_shift); |
| if (err < 0) |
| goto fail; |
| |
| if ((err = ff_mpv_init_context_frame(s))) |
| goto fail; |
| |
| memset(s->thread_context, 0, sizeof(s->thread_context)); |
| s->thread_context[0] = s; |
| |
| if (s->width && s->height) { |
| err = ff_mpv_init_duplicate_contexts(s); |
| if (err < 0) |
| goto fail; |
| } |
| s->context_reinit = 0; |
| |
| return 0; |
| fail: |
| ff_mpv_free_context_frame(s); |
| s->context_reinit = 1; |
| return err; |
| } |
| |
| static int alloc_picture(MpegEncContext *s, MPVWorkPicture *dst, int reference) |
| { |
| AVCodecContext *avctx = s->avctx; |
| MPVPicture *pic = av_refstruct_pool_get(s->picture_pool); |
| int ret; |
| |
| if (!pic) |
| return AVERROR(ENOMEM); |
| |
| dst->ptr = pic; |
| |
| pic->reference = reference; |
| |
| /* WM Image / Screen codecs allocate internal buffers with different |
| * dimensions / colorspaces; ignore user-defined callbacks for these. */ |
| if (avctx->codec_id != AV_CODEC_ID_WMV3IMAGE && |
| avctx->codec_id != AV_CODEC_ID_VC1IMAGE && |
| avctx->codec_id != AV_CODEC_ID_MSS2) { |
| ret = ff_thread_get_buffer(avctx, pic->f, |
| reference ? AV_GET_BUFFER_FLAG_REF : 0); |
| } else { |
| pic->f->width = avctx->width; |
| pic->f->height = avctx->height; |
| pic->f->format = avctx->pix_fmt; |
| ret = avcodec_default_get_buffer2(avctx, pic->f, 0); |
| } |
| if (ret < 0) |
| goto fail; |
| |
| ret = ff_mpv_pic_check_linesize(avctx, pic->f, &s->linesize, &s->uvlinesize); |
| if (ret < 0) |
| goto fail; |
| |
| ret = ff_hwaccel_frame_priv_alloc(avctx, &pic->hwaccel_picture_private); |
| if (ret < 0) |
| goto fail; |
| |
| av_assert1(s->mb_width == s->buffer_pools.alloc_mb_width); |
| av_assert1(s->mb_height == s->buffer_pools.alloc_mb_height || |
| FFALIGN(s->mb_height, 2) == s->buffer_pools.alloc_mb_height); |
| av_assert1(s->mb_stride == s->buffer_pools.alloc_mb_stride); |
| ret = ff_mpv_alloc_pic_accessories(s->avctx, dst, &s->sc, |
| &s->buffer_pools, s->mb_height); |
| if (ret < 0) |
| goto fail; |
| |
| return 0; |
| fail: |
| ff_mpv_unref_picture(dst); |
| return ret; |
| } |
| |
| static int av_cold alloc_dummy_frame(MpegEncContext *s, MPVWorkPicture *dst) |
| { |
| MPVPicture *pic; |
| int ret = alloc_picture(s, dst, 1); |
| if (ret < 0) |
| return ret; |
| |
| pic = dst->ptr; |
| pic->dummy = 1; |
| |
| ff_thread_progress_report(&pic->progress, INT_MAX); |
| |
| return 0; |
| } |
| |
| static void color_frame(AVFrame *frame, int luma) |
| { |
| int h_chroma_shift, v_chroma_shift; |
| |
| for (int i = 0; i < frame->height; i++) |
| memset(frame->data[0] + frame->linesize[0] * i, luma, frame->width); |
| |
| if (!frame->data[1]) |
| return; |
| av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift); |
| for (int i = 0; i < AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) { |
| memset(frame->data[1] + frame->linesize[1] * i, |
| 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift)); |
| memset(frame->data[2] + frame->linesize[2] * i, |
| 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift)); |
| } |
| } |
| |
| int ff_mpv_alloc_dummy_frames(MpegEncContext *s) |
| { |
| AVCodecContext *avctx = s->avctx; |
| int ret; |
| |
| av_assert1(!s->last_pic.ptr || s->last_pic.ptr->f->buf[0]); |
| av_assert1(!s->next_pic.ptr || s->next_pic.ptr->f->buf[0]); |
| if (!s->last_pic.ptr && s->pict_type != AV_PICTURE_TYPE_I) { |
| if (s->pict_type == AV_PICTURE_TYPE_B && s->next_pic.ptr) |
| av_log(avctx, AV_LOG_DEBUG, |
| "allocating dummy last picture for B frame\n"); |
| else if (s->codec_id != AV_CODEC_ID_H261 /* H.261 has no keyframes */ && |
| (s->picture_structure == PICT_FRAME || s->first_field)) |
| av_log(avctx, AV_LOG_ERROR, |
| "warning: first frame is no keyframe\n"); |
| |
| /* Allocate a dummy frame */ |
| ret = alloc_dummy_frame(s, &s->last_pic); |
| if (ret < 0) |
| return ret; |
| |
| if (!avctx->hwaccel) { |
| int luma_val = s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263 ? 16 : 0x80; |
| color_frame(s->last_pic.ptr->f, luma_val); |
| } |
| } |
| if (!s->next_pic.ptr && s->pict_type == AV_PICTURE_TYPE_B) { |
| /* Allocate a dummy frame */ |
| ret = alloc_dummy_frame(s, &s->next_pic); |
| if (ret < 0) |
| return ret; |
| } |
| |
| av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_pic.ptr && |
| s->last_pic.ptr->f->buf[0])); |
| |
| return 0; |
| } |
| |
| /** |
| * generic function called after decoding |
| * the header and before a frame is decoded. |
| */ |
| int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx) |
| { |
| int ret; |
| |
| s->mb_skipped = 0; |
| |
| if (!ff_thread_can_start_frame(avctx)) { |
| av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n"); |
| return AVERROR_BUG; |
| } |
| |
| ff_mpv_unref_picture(&s->cur_pic); |
| ret = alloc_picture(s, &s->cur_pic, |
| s->pict_type != AV_PICTURE_TYPE_B && !s->droppable); |
| if (ret < 0) |
| return ret; |
| |
| s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST * !!s->top_field_first; |
| s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_INTERLACED * |
| (!s->progressive_frame && !s->progressive_sequence); |
| s->cur_pic.ptr->field_picture = s->picture_structure != PICT_FRAME; |
| |
| s->cur_pic.ptr->f->pict_type = s->pict_type; |
| if (s->pict_type == AV_PICTURE_TYPE_I) |
| s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_KEY; |
| else |
| s->cur_pic.ptr->f->flags &= ~AV_FRAME_FLAG_KEY; |
| |
| if (s->pict_type != AV_PICTURE_TYPE_B) { |
| ff_mpv_workpic_from_pic(&s->last_pic, s->next_pic.ptr); |
| if (!s->droppable) |
| ff_mpv_workpic_from_pic(&s->next_pic, s->cur_pic.ptr); |
| } |
| ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n", |
| (void*)s->last_pic.ptr, (void*)s->next_pic.ptr, (void*)s->cur_pic.ptr, |
| s->last_pic.ptr ? s->last_pic.ptr->f->data[0] : NULL, |
| s->next_pic.ptr ? s->next_pic.ptr->f->data[0] : NULL, |
| s->cur_pic.ptr ? s->cur_pic.ptr->f->data[0] : NULL, |
| s->pict_type, s->droppable); |
| |
| ret = ff_mpv_alloc_dummy_frames(s); |
| if (ret < 0) |
| return ret; |
| |
| if (s->avctx->debug & FF_DEBUG_NOMC) |
| color_frame(s->cur_pic.ptr->f, 0x80); |
| |
| return 0; |
| } |
| |
| /* called after a frame has been decoded. */ |
| void ff_mpv_frame_end(MpegEncContext *s) |
| { |
| emms_c(); |
| |
| if (s->cur_pic.reference) |
| ff_thread_progress_report(&s->cur_pic.ptr->progress, INT_MAX); |
| } |
| |
| void ff_print_debug_info(const MpegEncContext *s, const MPVPicture *p, AVFrame *pict) |
| { |
| ff_print_debug_info2(s->avctx, pict, p->mb_type, |
| p->qscale_table, p->motion_val, |
| p->mb_width, p->mb_height, p->mb_stride, s->quarter_sample); |
| } |
| |
| int ff_mpv_export_qp_table(const MpegEncContext *s, AVFrame *f, |
| const MPVPicture *p, int qp_type) |
| { |
| AVVideoEncParams *par; |
| int mult = (qp_type == FF_MPV_QSCALE_TYPE_MPEG1) ? 2 : 1; |
| unsigned int nb_mb = p->mb_height * p->mb_width; |
| |
| if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS)) |
| return 0; |
| |
| par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb); |
| if (!par) |
| return AVERROR(ENOMEM); |
| |
| for (unsigned y = 0; y < p->mb_height; y++) |
| for (unsigned x = 0; x < p->mb_width; x++) { |
| const unsigned int block_idx = y * p->mb_width + x; |
| const unsigned int mb_xy = y * p->mb_stride + x; |
| AVVideoBlockParams *const b = av_video_enc_params_block(par, block_idx); |
| |
| b->src_x = x * 16; |
| b->src_y = y * 16; |
| b->w = 16; |
| b->h = 16; |
| |
| b->delta_qp = p->qscale_table[mb_xy] * mult; |
| } |
| |
| return 0; |
| } |
| |
| void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h) |
| { |
| ff_draw_horiz_band(s->avctx, s->cur_pic.ptr->f, |
| s->last_pic.ptr ? s->last_pic.ptr->f : NULL, |
| y, h, s->picture_structure, |
| s->first_field, s->low_delay); |
| } |
| |
| av_cold void ff_mpeg_flush(AVCodecContext *avctx) |
| { |
| MpegEncContext *const s = avctx->priv_data; |
| |
| ff_mpv_unref_picture(&s->cur_pic); |
| ff_mpv_unref_picture(&s->last_pic); |
| ff_mpv_unref_picture(&s->next_pic); |
| |
| s->mb_x = s->mb_y = 0; |
| |
| s->pp_time = 0; |
| } |
| |
| static inline int hpel_motion_lowres(MpegEncContext *s, |
| uint8_t *dest, const uint8_t *src, |
| int field_based, int field_select, |
| int src_x, int src_y, |
| int width, int height, ptrdiff_t stride, |
| int h_edge_pos, int v_edge_pos, |
| int w, int h, const h264_chroma_mc_func *pix_op, |
| int motion_x, int motion_y) |
| { |
| const int lowres = s->avctx->lowres; |
| const int op_index = lowres; |
| const int s_mask = (2 << lowres) - 1; |
| int emu = 0; |
| int sx, sy; |
| |
| av_assert2(op_index <= 3); |
| |
| if (s->quarter_sample) { |
| motion_x /= 2; |
| motion_y /= 2; |
| } |
| |
| sx = motion_x & s_mask; |
| sy = motion_y & s_mask; |
| src_x += motion_x >> lowres + 1; |
| src_y += motion_y >> lowres + 1; |
| |
| src += src_y * stride + src_x; |
| |
| if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) || |
| (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) { |
| s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src, |
| s->linesize, s->linesize, |
| w + 1, (h + 1) << field_based, |
| src_x, src_y * (1 << field_based), |
| h_edge_pos, v_edge_pos); |
| src = s->sc.edge_emu_buffer; |
| emu = 1; |
| } |
| |
| sx = (sx << 2) >> lowres; |
| sy = (sy << 2) >> lowres; |
| if (field_select) |
| src += s->linesize; |
| pix_op[op_index](dest, src, stride, h, sx, sy); |
| return emu; |
| } |
| |
| /* apply one mpeg motion vector to the three components */ |
| static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, |
| uint8_t *dest_y, |
| uint8_t *dest_cb, |
| uint8_t *dest_cr, |
| int field_based, |
| int bottom_field, |
| int field_select, |
| uint8_t *const *ref_picture, |
| const h264_chroma_mc_func *pix_op, |
| int motion_x, int motion_y, |
| int h, int mb_y) |
| { |
| const uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
| int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy; |
| ptrdiff_t uvlinesize, linesize; |
| const int lowres = s->avctx->lowres; |
| const int op_index = lowres - 1 + s->chroma_x_shift; |
| const int block_s = 8 >> lowres; |
| const int s_mask = (2 << lowres) - 1; |
| const int h_edge_pos = s->h_edge_pos >> lowres; |
| const int v_edge_pos = s->v_edge_pos >> lowres; |
| int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h; |
| |
| av_assert2(op_index <= 3); |
| |
| linesize = s->cur_pic.linesize[0] << field_based; |
| uvlinesize = s->cur_pic.linesize[1] << field_based; |
| |
| // FIXME obviously not perfect but qpel will not work in lowres anyway |
| if (s->quarter_sample) { |
| motion_x /= 2; |
| motion_y /= 2; |
| } |
| |
| if (field_based) { |
| motion_y += (bottom_field - field_select)*((1 << lowres)-1); |
| } |
| |
| sx = motion_x & s_mask; |
| sy = motion_y & s_mask; |
| src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1); |
| src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1); |
| |
| if (s->out_format == FMT_H263) { |
| uvsx = ((motion_x >> 1) & s_mask) | (sx & 1); |
| uvsy = ((motion_y >> 1) & s_mask) | (sy & 1); |
| uvsrc_x = src_x >> 1; |
| uvsrc_y = src_y >> 1; |
| } else if (s->out_format == FMT_H261) { |
| // even chroma mv's are full pel in H261 |
| mx = motion_x / 4; |
| my = motion_y / 4; |
| uvsx = (2 * mx) & s_mask; |
| uvsy = (2 * my) & s_mask; |
| uvsrc_x = s->mb_x * block_s + (mx >> lowres); |
| uvsrc_y = mb_y * block_s + (my >> lowres); |
| } else { |
| if (s->chroma_y_shift) { |
| mx = motion_x / 2; |
| my = motion_y / 2; |
| uvsx = mx & s_mask; |
| uvsy = my & s_mask; |
| uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1); |
| uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1); |
| } else { |
| if (s->chroma_x_shift) { |
| //Chroma422 |
| mx = motion_x / 2; |
| uvsx = mx & s_mask; |
| uvsy = motion_y & s_mask; |
| uvsrc_y = src_y; |
| uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1)); |
| } else { |
| //Chroma444 |
| uvsx = motion_x & s_mask; |
| uvsy = motion_y & s_mask; |
| uvsrc_x = src_x; |
| uvsrc_y = src_y; |
| } |
| } |
| } |
| |
| ptr_y = ref_picture[0] + src_y * linesize + src_x; |
| ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x; |
| ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x; |
| |
| if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 || |
| (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - FFMAX(h, field_select + hc<<s->chroma_y_shift), 0)) { |
| s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y, |
| linesize >> field_based, linesize >> field_based, |
| 17, 17 + field_based, |
| src_x, src_y * (1 << field_based), h_edge_pos, |
| v_edge_pos); |
| ptr_y = s->sc.edge_emu_buffer; |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize; |
| uint8_t *vbuf =ubuf + 10 * s->uvlinesize; |
| if (s->workaround_bugs & FF_BUG_IEDGE) |
| vbuf -= s->uvlinesize; |
| s->vdsp.emulated_edge_mc(ubuf, ptr_cb, |
| uvlinesize >> field_based, uvlinesize >> field_based, |
| 9, 9 + field_based, |
| uvsrc_x, uvsrc_y * (1 << field_based), |
| h_edge_pos >> 1, v_edge_pos >> 1); |
| s->vdsp.emulated_edge_mc(vbuf, ptr_cr, |
| uvlinesize >> field_based,uvlinesize >> field_based, |
| 9, 9 + field_based, |
| uvsrc_x, uvsrc_y * (1 << field_based), |
| h_edge_pos >> 1, v_edge_pos >> 1); |
| ptr_cb = ubuf; |
| ptr_cr = vbuf; |
| } |
| } |
| |
| // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data |
| if (bottom_field) { |
| dest_y += s->linesize; |
| dest_cb += s->uvlinesize; |
| dest_cr += s->uvlinesize; |
| } |
| |
| if (field_select) { |
| ptr_y += s->linesize; |
| ptr_cb += s->uvlinesize; |
| ptr_cr += s->uvlinesize; |
| } |
| |
| sx = (sx << 2) >> lowres; |
| sy = (sy << 2) >> lowres; |
| pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy); |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| uvsx = (uvsx << 2) >> lowres; |
| uvsy = (uvsy << 2) >> lowres; |
| if (hc) { |
| pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy); |
| pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy); |
| } |
| } |
| // FIXME h261 lowres loop filter |
| } |
| |
| static inline void chroma_4mv_motion_lowres(MpegEncContext *s, |
| uint8_t *dest_cb, uint8_t *dest_cr, |
| uint8_t *const *ref_picture, |
| const h264_chroma_mc_func * pix_op, |
| int mx, int my) |
| { |
| const int lowres = s->avctx->lowres; |
| const int op_index = lowres; |
| const int block_s = 8 >> lowres; |
| const int s_mask = (2 << lowres) - 1; |
| const int h_edge_pos = s->h_edge_pos >> lowres + 1; |
| const int v_edge_pos = s->v_edge_pos >> lowres + 1; |
| int emu = 0, src_x, src_y, sx, sy; |
| ptrdiff_t offset; |
| const uint8_t *ptr; |
| |
| av_assert2(op_index <= 3); |
| |
| if (s->quarter_sample) { |
| mx /= 2; |
| my /= 2; |
| } |
| |
| /* In case of 8X8, we construct a single chroma motion vector |
| with a special rounding */ |
| mx = ff_h263_round_chroma(mx); |
| my = ff_h263_round_chroma(my); |
| |
| sx = mx & s_mask; |
| sy = my & s_mask; |
| src_x = s->mb_x * block_s + (mx >> lowres + 1); |
| src_y = s->mb_y * block_s + (my >> lowres + 1); |
| |
| offset = src_y * s->uvlinesize + src_x; |
| ptr = ref_picture[1] + offset; |
| if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) || |
| (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) { |
| s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr, |
| s->uvlinesize, s->uvlinesize, |
| 9, 9, |
| src_x, src_y, h_edge_pos, v_edge_pos); |
| ptr = s->sc.edge_emu_buffer; |
| emu = 1; |
| } |
| sx = (sx << 2) >> lowres; |
| sy = (sy << 2) >> lowres; |
| pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy); |
| |
| ptr = ref_picture[2] + offset; |
| if (emu) { |
| s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr, |
| s->uvlinesize, s->uvlinesize, |
| 9, 9, |
| src_x, src_y, h_edge_pos, v_edge_pos); |
| ptr = s->sc.edge_emu_buffer; |
| } |
| pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy); |
| } |
| |
| /** |
| * motion compensation of a single macroblock |
| * @param s context |
| * @param dest_y luma destination pointer |
| * @param dest_cb chroma cb/u destination pointer |
| * @param dest_cr chroma cr/v destination pointer |
| * @param dir direction (0->forward, 1->backward) |
| * @param ref_picture array[3] of pointers to the 3 planes of the reference picture |
| * @param pix_op halfpel motion compensation function (average or put normally) |
| * the motion vectors are taken from s->mv and the MV type from s->mv_type |
| */ |
| static inline void MPV_motion_lowres(MpegEncContext *s, |
| uint8_t *dest_y, uint8_t *dest_cb, |
| uint8_t *dest_cr, |
| int dir, uint8_t *const *ref_picture, |
| const h264_chroma_mc_func *pix_op) |
| { |
| int mx, my; |
| int mb_x, mb_y; |
| const int lowres = s->avctx->lowres; |
| const int block_s = 8 >>lowres; |
| |
| mb_x = s->mb_x; |
| mb_y = s->mb_y; |
| |
| switch (s->mv_type) { |
| case MV_TYPE_16X16: |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 0, 0, 0, |
| ref_picture, pix_op, |
| s->mv[dir][0][0], s->mv[dir][0][1], |
| 2 * block_s, mb_y); |
| break; |
| case MV_TYPE_8X8: |
| mx = 0; |
| my = 0; |
| for (int i = 0; i < 4; i++) { |
| hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) * |
| s->linesize) * block_s, |
| ref_picture[0], 0, 0, |
| (2 * mb_x + (i & 1)) * block_s, |
| (2 * mb_y + (i >> 1)) * block_s, |
| s->width, s->height, s->linesize, |
| s->h_edge_pos >> lowres, s->v_edge_pos >> lowres, |
| block_s, block_s, pix_op, |
| s->mv[dir][i][0], s->mv[dir][i][1]); |
| |
| mx += s->mv[dir][i][0]; |
| my += s->mv[dir][i][1]; |
| } |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) |
| chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture, |
| pix_op, mx, my); |
| break; |
| case MV_TYPE_FIELD: |
| if (s->picture_structure == PICT_FRAME) { |
| /* top field */ |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1, 0, s->field_select[dir][0], |
| ref_picture, pix_op, |
| s->mv[dir][0][0], s->mv[dir][0][1], |
| block_s, mb_y); |
| /* bottom field */ |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1, 1, s->field_select[dir][1], |
| ref_picture, pix_op, |
| s->mv[dir][1][0], s->mv[dir][1][1], |
| block_s, mb_y); |
| } else { |
| if (s->picture_structure != s->field_select[dir][0] + 1 && |
| s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) { |
| ref_picture = s->cur_pic.ptr->f->data; |
| } |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 0, 0, s->field_select[dir][0], |
| ref_picture, pix_op, |
| s->mv[dir][0][0], |
| s->mv[dir][0][1], 2 * block_s, mb_y >> 1); |
| } |
| break; |
| case MV_TYPE_16X8: |
| for (int i = 0; i < 2; i++) { |
| uint8_t *const *ref2picture; |
| |
| if (s->picture_structure == s->field_select[dir][i] + 1 || |
| s->pict_type == AV_PICTURE_TYPE_B || s->first_field) { |
| ref2picture = ref_picture; |
| } else { |
| ref2picture = s->cur_pic.ptr->f->data; |
| } |
| |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 0, 0, s->field_select[dir][i], |
| ref2picture, pix_op, |
| s->mv[dir][i][0], s->mv[dir][i][1] + |
| 2 * block_s * i, block_s, mb_y >> 1); |
| |
| dest_y += 2 * block_s * s->linesize; |
| dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize; |
| dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize; |
| } |
| break; |
| case MV_TYPE_DMV: |
| if (s->picture_structure == PICT_FRAME) { |
| for (int i = 0; i < 2; i++) { |
| for (int j = 0; j < 2; j++) { |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1, j, j ^ i, |
| ref_picture, pix_op, |
| s->mv[dir][2 * i + j][0], |
| s->mv[dir][2 * i + j][1], |
| block_s, mb_y); |
| } |
| pix_op = s->h264chroma.avg_h264_chroma_pixels_tab; |
| } |
| } else { |
| for (int i = 0; i < 2; i++) { |
| mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 0, 0, s->picture_structure != i + 1, |
| ref_picture, pix_op, |
| s->mv[dir][2 * i][0],s->mv[dir][2 * i][1], |
| 2 * block_s, mb_y >> 1); |
| |
| // after put we make avg of the same block |
| pix_op = s->h264chroma.avg_h264_chroma_pixels_tab; |
| |
| // opposite parity is always in the same |
| // frame if this is second field |
| if (!s->first_field) { |
| ref_picture = s->cur_pic.ptr->f->data; |
| } |
| } |
| } |
| break; |
| default: |
| av_unreachable("No other mpegvideo MV types exist"); |
| } |
| } |
| |
| /** |
| * find the lowest MB row referenced in the MVs |
| */ |
| static int lowest_referenced_row(MpegEncContext *s, int dir) |
| { |
| int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample; |
| int off, mvs; |
| |
| if (s->picture_structure != PICT_FRAME || s->mcsel) |
| goto unhandled; |
| |
| switch (s->mv_type) { |
| case MV_TYPE_16X16: |
| mvs = 1; |
| break; |
| case MV_TYPE_16X8: |
| mvs = 2; |
| break; |
| case MV_TYPE_8X8: |
| mvs = 4; |
| break; |
| default: |
| goto unhandled; |
| } |
| |
| for (int i = 0; i < mvs; i++) { |
| int my = s->mv[dir][i][1]; |
| my_max = FFMAX(my_max, my); |
| my_min = FFMIN(my_min, my); |
| } |
| |
| off = ((FFMAX(-my_min, my_max) << qpel_shift) + 63) >> 6; |
| |
| return av_clip(s->mb_y + off, 0, s->mb_height - 1); |
| unhandled: |
| return s->mb_height - 1; |
| } |
| |
| /* add block[] to dest[] */ |
| static inline void add_dct(MpegEncContext *s, |
| int16_t block[][64], int i, uint8_t *dest, int line_size) |
| { |
| if (s->block_last_index[i] >= 0) { |
| s->idsp.idct_add(dest, line_size, block[i]); |
| } |
| } |
| |
| /* put block[] to dest[] */ |
| static inline void put_dct(MpegEncContext *s, |
| int16_t *block, int i, uint8_t *dest, int line_size, int qscale) |
| { |
| s->dct_unquantize_intra(s, block, i, qscale); |
| s->idsp.idct_put(dest, line_size, block); |
| } |
| |
| static inline void add_dequant_dct(MpegEncContext *s, |
| int16_t block[][64], int i, uint8_t *dest, int line_size, int qscale) |
| { |
| if (s->block_last_index[i] >= 0) { |
| s->dct_unquantize_inter(s, block[i], i, qscale); |
| |
| s->idsp.idct_add(dest, line_size, block[i]); |
| } |
| } |
| |
| #define NOT_MPEG12_H261 0 |
| #define MAY_BE_MPEG12_H261 1 |
| #define DEFINITELY_MPEG12_H261 2 |
| |
| /* generic function called after a macroblock has been parsed by the decoder. |
| |
| Important variables used: |
| s->mb_intra : true if intra macroblock |
| s->mv_dir : motion vector direction |
| s->mv_type : motion vector type |
| s->mv : motion vector |
| s->interlaced_dct : true if interlaced dct used (mpeg2) |
| */ |
| static av_always_inline |
| void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64], |
| int lowres_flag, int is_mpeg12) |
| { |
| #define IS_MPEG12_H261(s) (is_mpeg12 == MAY_BE_MPEG12_H261 ? ((s)->out_format <= FMT_H261) : is_mpeg12) |
| uint8_t *dest_y = s->dest[0], *dest_cb = s->dest[1], *dest_cr = s->dest[2]; |
| int dct_linesize, dct_offset; |
| const int linesize = s->cur_pic.linesize[0]; //not s->linesize as this would be wrong for field pics |
| const int uvlinesize = s->cur_pic.linesize[1]; |
| const int block_size = lowres_flag ? 8 >> s->avctx->lowres : 8; |
| |
| dct_linesize = linesize << s->interlaced_dct; |
| dct_offset = s->interlaced_dct ? linesize : linesize * block_size; |
| |
| if (!s->mb_intra) { |
| /* motion handling */ |
| if (HAVE_THREADS && is_mpeg12 != DEFINITELY_MPEG12_H261 && |
| s->avctx->active_thread_type & FF_THREAD_FRAME) { |
| if (s->mv_dir & MV_DIR_FORWARD) { |
| ff_thread_progress_await(&s->last_pic.ptr->progress, |
| lowest_referenced_row(s, 0)); |
| } |
| if (s->mv_dir & MV_DIR_BACKWARD) { |
| ff_thread_progress_await(&s->next_pic.ptr->progress, |
| lowest_referenced_row(s, 1)); |
| } |
| } |
| |
| if (lowres_flag) { |
| const h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab; |
| |
| if (s->mv_dir & MV_DIR_FORWARD) { |
| MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix); |
| op_pix = s->h264chroma.avg_h264_chroma_pixels_tab; |
| } |
| if (s->mv_dir & MV_DIR_BACKWARD) { |
| MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix); |
| } |
| } else { |
| const op_pixels_func (*op_pix)[4]; |
| const qpel_mc_func (*op_qpix)[16]; |
| |
| if ((is_mpeg12 == DEFINITELY_MPEG12_H261 || !s->no_rounding) || s->pict_type == AV_PICTURE_TYPE_B) { |
| op_pix = s->hdsp.put_pixels_tab; |
| op_qpix = s->qdsp.put_qpel_pixels_tab; |
| } else { |
| op_pix = s->hdsp.put_no_rnd_pixels_tab; |
| op_qpix = s->qdsp.put_no_rnd_qpel_pixels_tab; |
| } |
| if (s->mv_dir & MV_DIR_FORWARD) { |
| ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix, op_qpix); |
| op_pix = s->hdsp.avg_pixels_tab; |
| op_qpix = s->qdsp.avg_qpel_pixels_tab; |
| } |
| if (s->mv_dir & MV_DIR_BACKWARD) { |
| ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix, op_qpix); |
| } |
| } |
| |
| /* skip dequant / idct if we are really late ;) */ |
| if (s->avctx->skip_idct) { |
| if ( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) |
| ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) |
| || s->avctx->skip_idct >= AVDISCARD_ALL) |
| return; |
| } |
| |
| /* add dct residue */ |
| if (is_mpeg12 != DEFINITELY_MPEG12_H261 && s->dct_unquantize_inter) { |
| // H.263, H.263+, H.263I, FLV, RV10, RV20 and MPEG-4 with MPEG-2 quantization |
| add_dequant_dct(s, block, 0, dest_y , dct_linesize, s->qscale); |
| add_dequant_dct(s, block, 1, dest_y + block_size, dct_linesize, s->qscale); |
| add_dequant_dct(s, block, 2, dest_y + dct_offset , dct_linesize, s->qscale); |
| add_dequant_dct(s, block, 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| av_assert2(s->chroma_y_shift); |
| add_dequant_dct(s, block, 4, dest_cb, uvlinesize, s->chroma_qscale); |
| add_dequant_dct(s, block, 5, dest_cr, uvlinesize, s->chroma_qscale); |
| } |
| } else if (is_mpeg12 == DEFINITELY_MPEG12_H261 || lowres_flag || (s->codec_id != AV_CODEC_ID_WMV2)) { |
| // H.261, MPEG-1, MPEG-2, MPEG-4 with H.263 quantization, |
| // MSMP4V1-3 and WMV1. |
| // Also RV30, RV40 and the VC-1 family when performing error resilience, |
| // but all blocks are skipped in this case. |
| add_dct(s, block, 0, dest_y , dct_linesize); |
| add_dct(s, block, 1, dest_y + block_size, dct_linesize); |
| add_dct(s, block, 2, dest_y + dct_offset , dct_linesize); |
| add_dct(s, block, 3, dest_y + dct_offset + block_size, dct_linesize); |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| if (s->chroma_y_shift) {//Chroma420 |
| add_dct(s, block, 4, dest_cb, uvlinesize); |
| add_dct(s, block, 5, dest_cr, uvlinesize); |
| } else { |
| //chroma422 |
| dct_linesize = uvlinesize << s->interlaced_dct; |
| dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size; |
| |
| add_dct(s, block, 4, dest_cb, dct_linesize); |
| add_dct(s, block, 5, dest_cr, dct_linesize); |
| add_dct(s, block, 6, dest_cb + dct_offset, dct_linesize); |
| add_dct(s, block, 7, dest_cr + dct_offset, dct_linesize); |
| if (!s->chroma_x_shift) {//Chroma444 |
| add_dct(s, block, 8, dest_cb + block_size, dct_linesize); |
| add_dct(s, block, 9, dest_cr + block_size, dct_linesize); |
| add_dct(s, block, 10, dest_cb + block_size + dct_offset, dct_linesize); |
| add_dct(s, block, 11, dest_cr + block_size + dct_offset, dct_linesize); |
| } |
| } |
| } //fi gray |
| } else if (CONFIG_WMV2_DECODER) { |
| ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); |
| } |
| } else { |
| /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode. |
| TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */ |
| if (is_mpeg12 != DEFINITELY_MPEG12_H261 && CONFIG_MPEG4_DECODER && |
| /* s->codec_id == AV_CODEC_ID_MPEG4 && */ |
| s->avctx->bits_per_raw_sample > 8) { |
| ff_mpeg4_decode_studio(s, dest_y, dest_cb, dest_cr, block_size, |
| uvlinesize, dct_linesize, dct_offset); |
| } else if (!IS_MPEG12_H261(s)) { |
| /* dct only in intra block */ |
| put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); |
| put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); |
| put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); |
| put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| if (s->chroma_y_shift) { |
| put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); |
| put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); |
| } else { |
| dct_offset >>= 1; |
| dct_linesize >>= 1; |
| put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); |
| put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); |
| put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); |
| put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); |
| } |
| } |
| } else { |
| s->idsp.idct_put(dest_y, dct_linesize, block[0]); |
| s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]); |
| s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]); |
| s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]); |
| |
| if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
| if (s->chroma_y_shift) { |
| s->idsp.idct_put(dest_cb, uvlinesize, block[4]); |
| s->idsp.idct_put(dest_cr, uvlinesize, block[5]); |
| } else { |
| dct_linesize = uvlinesize << s->interlaced_dct; |
| dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size; |
| |
| s->idsp.idct_put(dest_cb, dct_linesize, block[4]); |
| s->idsp.idct_put(dest_cr, dct_linesize, block[5]); |
| s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]); |
| s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]); |
| if (!s->chroma_x_shift) { //Chroma444 |
| s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]); |
| s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]); |
| s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]); |
| s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]); |
| } |
| } |
| } //gray |
| } |
| } |
| } |
| |
| static av_cold void debug_dct_coeffs(MPVContext *s, const int16_t block[][64]) |
| { |
| if (!block) // happens when called via error resilience |
| return; |
| |
| void *const logctx = s->avctx; |
| const uint8_t *const idct_permutation = s->idsp.idct_permutation; |
| |
| /* print DCT coefficients */ |
| av_log(logctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y); |
| for (int i = 0; i < 6; i++) { |
| for (int j = 0; j < 64; j++) { |
| av_log(logctx, AV_LOG_DEBUG, "%5d", |
| block[i][idct_permutation[j]]); |
| } |
| av_log(logctx, AV_LOG_DEBUG, "\n"); |
| } |
| } |
| |
| void ff_mpv_reconstruct_mb(MPVContext *s, int16_t block[][64]) |
| { |
| const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; |
| uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; |
| |
| s->cur_pic.qscale_table[mb_xy] = s->qscale; |
| |
| /* avoid copy if macroblock skipped in last frame too */ |
| if (s->mb_skipped) { |
| s->mb_skipped = 0; |
| av_assert2(s->pict_type != AV_PICTURE_TYPE_I); |
| *mbskip_ptr = 1; |
| } else if (!s->cur_pic.reference) { |
| *mbskip_ptr = 1; |
| } else{ |
| *mbskip_ptr = 0; /* not skipped */ |
| } |
| |
| if (s->avctx->debug & FF_DEBUG_DCT_COEFF) |
| debug_dct_coeffs(s, block); |
| |
| av_assert2((s->out_format <= FMT_H261) == (s->out_format == FMT_H261 || s->out_format == FMT_MPEG1)); |
| if (!s->avctx->lowres) { |
| #if !CONFIG_SMALL |
| if (s->out_format <= FMT_H261) |
| mpv_reconstruct_mb_internal(s, block, 0, DEFINITELY_MPEG12_H261); |
| else |
| mpv_reconstruct_mb_internal(s, block, 0, NOT_MPEG12_H261); |
| #else |
| mpv_reconstruct_mb_internal(s, block, 0, MAY_BE_MPEG12_H261); |
| #endif |
| } else |
| mpv_reconstruct_mb_internal(s, block, 1, MAY_BE_MPEG12_H261); |
| } |
