/* * The simplest mpeg encoder (well, it was the simplest!) * Copyright (c) 2000,2001 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer * * 4MV & hq & B-frame encoding stuff by Michael Niedermayer * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * The simplest mpeg encoder (well, it was the simplest!). */ #include "libavutil/intmath.h" #include "libavutil/imgutils.h" #include "avcodec.h" #include "dsputil.h" #include "internal.h" #include "mpegvideo.h" #include "mpegvideo_common.h" #include "mjpegenc.h" #include "msmpeg4.h" #include "faandct.h" #include "xvmc_internal.h" #include "thread.h" #include //#undef NDEBUG //#include static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_h263_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); static void dct_unquantize_h263_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale); /* enable all paranoid tests for rounding, overflows, etc... */ //#define PARANOID //#define DEBUG static const uint8_t ff_default_chroma_qscale_table[32] = { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; const uint8_t ff_mpeg1_dc_scale_table[128] = { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, }; static const uint8_t mpeg2_dc_scale_table1[128] = { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, }; static const uint8_t mpeg2_dc_scale_table2[128] = { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, }; static const uint8_t mpeg2_dc_scale_table3[128] = { // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, }; const uint8_t *const ff_mpeg2_dc_scale_table[4] = { ff_mpeg1_dc_scale_table, mpeg2_dc_scale_table1, mpeg2_dc_scale_table2, mpeg2_dc_scale_table3, }; const enum PixelFormat ff_pixfmt_list_420[] = { PIX_FMT_YUV420P, PIX_FMT_NONE }; const enum PixelFormat ff_hwaccel_pixfmt_list_420[] = { PIX_FMT_DXVA2_VLD, PIX_FMT_VAAPI_VLD, PIX_FMT_VDA_VLD, PIX_FMT_YUV420P, PIX_FMT_NONE }; const uint8_t *avpriv_mpv_find_start_code(const uint8_t *restrict p, const uint8_t *end, uint32_t * restrict state) { int i; assert(p <= end); if (p >= end) return end; for (i = 0; i < 3; i++) { uint32_t tmp = *state << 8; *state = tmp + *(p++); if (tmp == 0x100 || p == end) return p; } while (p < end) { if (p[-1] > 1 ) p += 3; else if (p[-2] ) p += 2; else if (p[-3]|(p[-1]-1)) p++; else { p++; break; } } p = FFMIN(p, end) - 4; *state = AV_RB32(p); return p + 4; } /* init common dct for both encoder and decoder */ av_cold int ff_dct_common_init(MpegEncContext *s) { dsputil_init(&s->dsp, s->avctx); s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c; s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c; s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c; s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c; s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c; if (s->flags & CODEC_FLAG_BITEXACT) s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact; s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c; #if HAVE_MMX MPV_common_init_mmx(s); #elif ARCH_ALPHA MPV_common_init_axp(s); #elif CONFIG_MLIB MPV_common_init_mlib(s); #elif HAVE_MMI MPV_common_init_mmi(s); #elif ARCH_ARM MPV_common_init_arm(s); #elif HAVE_ALTIVEC MPV_common_init_altivec(s); #elif ARCH_BFIN MPV_common_init_bfin(s); #endif /* load & permutate scantables * note: only wmv uses different ones */ if (s->alternate_scan) { ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan); ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan); } else { ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct); ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct); } ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan); ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan); return 0; } void ff_copy_picture(Picture *dst, Picture *src) { *dst = *src; dst->f.type = FF_BUFFER_TYPE_COPY; } /** * Release a frame buffer */ static void free_frame_buffer(MpegEncContext *s, Picture *pic) { /* Windows Media Image codecs allocate internal buffers with different * dimensions; ignore user defined callbacks for these */ if (s->codec_id != CODEC_ID_WMV3IMAGE && s->codec_id != CODEC_ID_VC1IMAGE) ff_thread_release_buffer(s->avctx, (AVFrame *) pic); else avcodec_default_release_buffer(s->avctx, (AVFrame *) pic); av_freep(&pic->f.hwaccel_picture_private); } /** * Allocate a frame buffer */ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic) { int r; if (s->avctx->hwaccel) { assert(!pic->f.hwaccel_picture_private); if (s->avctx->hwaccel->priv_data_size) { pic->f.hwaccel_picture_private = av_mallocz(s->avctx->hwaccel->priv_data_size); if (!pic->f.hwaccel_picture_private) { av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n"); return -1; } } } if (s->codec_id != CODEC_ID_WMV3IMAGE && s->codec_id != CODEC_ID_VC1IMAGE) r = ff_thread_get_buffer(s->avctx, (AVFrame *) pic); else r = avcodec_default_get_buffer(s->avctx, (AVFrame *) pic); if (r < 0 || !pic->f.type || !pic->f.data[0]) { av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %p)\n", r, pic->f.type, pic->f.data[0]); av_freep(&pic->f.hwaccel_picture_private); return -1; } if (s->linesize && (s->linesize != pic->f.linesize[0] || s->uvlinesize != pic->f.linesize[1])) { av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (stride changed)\n"); free_frame_buffer(s, pic); return -1; } if (pic->f.linesize[1] != pic->f.linesize[2]) { av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (uv stride mismatch)\n"); free_frame_buffer(s, pic); return -1; } return 0; } /** * Allocate a Picture. * The pixels are allocated/set by calling get_buffer() if shared = 0 */ int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared) { const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1; // the + 1 is needed so memset(,,stride*height) does not sig11 const int mb_array_size = s->mb_stride * s->mb_height; const int b8_array_size = s->b8_stride * s->mb_height * 2; const int b4_array_size = s->b4_stride * s->mb_height * 4; int i; int r = -1; if (shared) { assert(pic->f.data[0]); assert(pic->f.type == 0 || pic->f.type == FF_BUFFER_TYPE_SHARED); pic->f.type = FF_BUFFER_TYPE_SHARED; } else { assert(!pic->f.data[0]); if (alloc_frame_buffer(s, pic) < 0) return -1; s->linesize = pic->f.linesize[0]; s->uvlinesize = pic->f.linesize[1]; } if (pic->f.qscale_table == NULL) { if (s->encoding) { FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_var, mb_array_size * sizeof(int16_t), fail) FF_ALLOCZ_OR_GOTO(s->avctx, pic->mc_mb_var, mb_array_size * sizeof(int16_t), fail) FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_mean, mb_array_size * sizeof(int8_t ), fail) } FF_ALLOCZ_OR_GOTO(s->avctx, pic->f.mbskip_table, mb_array_size * sizeof(uint8_t) + 2, fail)// the + 2 is for the slice end check FF_ALLOCZ_OR_GOTO(s->avctx, pic->qscale_table_base, (big_mb_num + s->mb_stride) * sizeof(uint8_t), fail) FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_type_base, (big_mb_num + s->mb_stride) * sizeof(uint32_t), fail) pic->f.mb_type = pic->mb_type_base + 2 * s->mb_stride + 1; pic->f.qscale_table = pic->qscale_table_base + 2 * s->mb_stride + 1; if (s->out_format == FMT_H264) { for (i = 0; i < 2; i++) { FF_ALLOCZ_OR_GOTO(s->avctx, pic->motion_val_base[i], 2 * (b4_array_size + 4) * sizeof(int16_t), fail) pic->f.motion_val[i] = pic->motion_val_base[i] + 4; FF_ALLOCZ_OR_GOTO(s->avctx, pic->f.ref_index[i], 4 * mb_array_size * sizeof(uint8_t), fail) } pic->f.motion_subsample_log2 = 2; } else if (s->out_format == FMT_H263 || s->encoding || (s->avctx->debug & FF_DEBUG_MV) || s->avctx->debug_mv) { for (i = 0; i < 2; i++) { FF_ALLOCZ_OR_GOTO(s->avctx, pic->motion_val_base[i], 2 * (b8_array_size + 4) * sizeof(int16_t), fail) pic->f.motion_val[i] = pic->motion_val_base[i] + 4; FF_ALLOCZ_OR_GOTO(s->avctx, pic->f.ref_index[i], 4 * mb_array_size * sizeof(uint8_t), fail) } pic->f.motion_subsample_log2 = 3; } if (s->avctx->debug&FF_DEBUG_DCT_COEFF) { FF_ALLOCZ_OR_GOTO(s->avctx, pic->f.dct_coeff, 64 * mb_array_size * sizeof(DCTELEM) * 6, fail) } pic->f.qstride = s->mb_stride; FF_ALLOCZ_OR_GOTO(s->avctx, pic->f.pan_scan, 1 * sizeof(AVPanScan), fail) } pic->owner2 = s; return 0; fail: // for the FF_ALLOCZ_OR_GOTO macro if (r >= 0) free_frame_buffer(s, pic); return -1; } /** * Deallocate a picture. */ static void free_picture(MpegEncContext *s, Picture *pic) { int i; if (pic->f.data[0] && pic->f.type != FF_BUFFER_TYPE_SHARED) { free_frame_buffer(s, pic); } av_freep(&pic->mb_var); av_freep(&pic->mc_mb_var); av_freep(&pic->mb_mean); av_freep(&pic->f.mbskip_table); av_freep(&pic->qscale_table_base); av_freep(&pic->mb_type_base); av_freep(&pic->f.dct_coeff); av_freep(&pic->f.pan_scan); pic->f.mb_type = NULL; for (i = 0; i < 2; i++) { av_freep(&pic->motion_val_base[i]); av_freep(&pic->f.ref_index[i]); } if (pic->f.type == FF_BUFFER_TYPE_SHARED) { for (i = 0; i < 4; i++) { pic->f.base[i] = pic->f.data[i] = NULL; } pic->f.type = 0; } } static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base) { int y_size = s->b8_stride * (2 * s->mb_height + 1); int c_size = s->mb_stride * (s->mb_height + 1); int yc_size = y_size + 2 * c_size; int i; // edge emu needs blocksize + filter length - 1 // (= 17x17 for halfpel / 21x21 for h264) FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, (s->width + 64) * 2 * 21 * 2, fail); // (width + edge + align)*interlaced*MBsize*tolerance // FIXME should be linesize instead of s->width * 2 // but that is not known before get_buffer() FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, (s->width + 64) * 4 * 16 * 2 * sizeof(uint8_t), fail) s->me.temp = s->me.scratchpad; s->rd_scratchpad = s->me.scratchpad; s->b_scratchpad = s->me.scratchpad; s->obmc_scratchpad = s->me.scratchpad + 16; if (s->encoding) { FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map, ME_MAP_SIZE * sizeof(uint32_t), fail) FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map, ME_MAP_SIZE * sizeof(uint32_t), fail) if (s->avctx->noise_reduction) { FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum, 2 * 64 * sizeof(int), fail) } } FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(DCTELEM), fail) s->block = s->blocks[0]; for (i = 0; i < 12; i++) { s->pblocks[i] = &s->block[i]; } if (s->out_format == FMT_H263) { /* ac values */ FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base, yc_size * sizeof(int16_t) * 16, fail); s->ac_val[0] = s->ac_val_base + s->b8_stride + 1; s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1; s->ac_val[2] = s->ac_val[1] + c_size; } return 0; fail: return -1; // free() through MPV_common_end() } static void free_duplicate_context(MpegEncContext *s) { if (s == NULL) return; av_freep(&s->edge_emu_buffer); av_freep(&s->me.scratchpad); s->me.temp = s->rd_scratchpad = s->b_scratchpad = s->obmc_scratchpad = NULL; av_freep(&s->dct_error_sum); av_freep(&s->me.map); av_freep(&s->me.score_map); av_freep(&s->blocks); av_freep(&s->ac_val_base); s->block = NULL; } static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src) { #define COPY(a) bak->a = src->a COPY(edge_emu_buffer); COPY(me.scratchpad); COPY(me.temp); COPY(rd_scratchpad); COPY(b_scratchpad); COPY(obmc_scratchpad); COPY(me.map); COPY(me.score_map); COPY(blocks); COPY(block); COPY(start_mb_y); COPY(end_mb_y); COPY(me.map_generation); COPY(pb); COPY(dct_error_sum); COPY(dct_count[0]); COPY(dct_count[1]); COPY(ac_val_base); COPY(ac_val[0]); COPY(ac_val[1]); COPY(ac_val[2]); #undef COPY } void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src) { MpegEncContext bak; int i; // FIXME copy only needed parts // START_TIMER backup_duplicate_context(&bak, dst); memcpy(dst, src, sizeof(MpegEncContext)); backup_duplicate_context(dst, &bak); for (i = 0; i < 12; i++) { dst->pblocks[i] = &dst->block[i]; } // STOP_TIMER("update_duplicate_context") // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads } int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) { MpegEncContext *s = dst->priv_data, *s1 = src->priv_data; if (dst == src || !s1->context_initialized) return 0; // FIXME can parameters change on I-frames? // in that case dst may need a reinit if (!s->context_initialized) { memcpy(s, s1, sizeof(MpegEncContext)); s->avctx = dst; s->picture_range_start += MAX_PICTURE_COUNT; s->picture_range_end += MAX_PICTURE_COUNT; s->bitstream_buffer = NULL; s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0; MPV_common_init(s); } s->avctx->coded_height = s1->avctx->coded_height; s->avctx->coded_width = s1->avctx->coded_width; s->avctx->width = s1->avctx->width; s->avctx->height = s1->avctx->height; s->coded_picture_number = s1->coded_picture_number; s->picture_number = s1->picture_number; s->input_picture_number = s1->input_picture_number; memcpy(s->picture, s1->picture, s1->picture_count * sizeof(Picture)); memcpy(&s->last_picture, &s1->last_picture, (char *) &s1->last_picture_ptr - (char *) &s1->last_picture); s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1); s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1); s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1); // Error/bug resilience s->next_p_frame_damaged = s1->next_p_frame_damaged; s->workaround_bugs = s1->workaround_bugs; // MPEG4 timing info memcpy(&s->time_increment_bits, &s1->time_increment_bits, (char *) &s1->shape - (char *) &s1->time_increment_bits); // B-frame info s->max_b_frames = s1->max_b_frames; s->low_delay = s1->low_delay; s->dropable = s1->dropable; // DivX handling (doesn't work) s->divx_packed = s1->divx_packed; if (s1->bitstream_buffer) { if (s1->bitstream_buffer_size + FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) av_fast_malloc(&s->bitstream_buffer, &s->allocated_bitstream_buffer_size, s1->allocated_bitstream_buffer_size); s->bitstream_buffer_size = s1->bitstream_buffer_size; memcpy(s->bitstream_buffer, s1->bitstream_buffer, s1->bitstream_buffer_size); memset(s->bitstream_buffer + s->bitstream_buffer_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); } // MPEG2/interlacing info memcpy(&s->progressive_sequence, &s1->progressive_sequence, (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence); if (!s1->first_field) { s->last_pict_type = s1->pict_type; if (s1->current_picture_ptr) s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality; if (s1->pict_type != AV_PICTURE_TYPE_B) { s->last_non_b_pict_type = s1->pict_type; } } return 0; } /** * Set the given MpegEncContext to common defaults * (same for encoding and decoding). * The changed fields will not depend upon the * prior state of the MpegEncContext. */ void MPV_common_defaults(MpegEncContext *s) { s->y_dc_scale_table = s->c_dc_scale_table = ff_mpeg1_dc_scale_table; s->chroma_qscale_table = ff_default_chroma_qscale_table; s->progressive_frame = 1; s->progressive_sequence = 1; s->picture_structure = PICT_FRAME; s->coded_picture_number = 0; s->picture_number = 0; s->input_picture_number = 0; s->picture_in_gop_number = 0; s->f_code = 1; s->b_code = 1; s->picture_range_start = 0; s->picture_range_end = MAX_PICTURE_COUNT; s->slice_context_count = 1; } /** * Set the given MpegEncContext to defaults for decoding. * the changed fields will not depend upon * the prior state of the MpegEncContext. */ void MPV_decode_defaults(MpegEncContext *s) { MPV_common_defaults(s); } /** * init common structure for both encoder and decoder. * this assumes that some variables like width/height are already set */ av_cold int MPV_common_init(MpegEncContext *s) { int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y; int nb_slices = (HAVE_THREADS && s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1; if (s->encoding && s->avctx->slices) nb_slices = s->avctx->slices; if (s->codec_id == CODEC_ID_MPEG2VIDEO && !s->progressive_sequence) s->mb_height = (s->height + 31) / 32 * 2; else if (s->codec_id != CODEC_ID_H264) s->mb_height = (s->height + 15) / 16; if (s->avctx->pix_fmt == PIX_FMT_NONE) { av_log(s->avctx, AV_LOG_ERROR, "decoding to PIX_FMT_NONE is not supported.\n"); return -1; } if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) { int max_slices; if (s->mb_height) max_slices = FFMIN(MAX_THREADS, s->mb_height); else max_slices = MAX_THREADS; av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d)," " reducing to %d\n", nb_slices, max_slices); nb_slices = max_slices; } if ((s->width || s->height) && av_image_check_size(s->width, s->height, 0, s->avctx)) return -1; ff_dct_common_init(s); s->flags = s->avctx->flags; s->flags2 = s->avctx->flags2; if (s->width && s->height) { s->mb_width = (s->width + 15) / 16; s->mb_stride = s->mb_width + 1; s->b8_stride = s->mb_width * 2 + 1; s->b4_stride = s->mb_width * 4 + 1; mb_array_size = s->mb_height * s->mb_stride; mv_table_size = (s->mb_height + 2) * s->mb_stride + 1; /* set chroma shifts */ avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift); /* set default edge pos, will be overriden * in decode_header if needed */ s->h_edge_pos = s->mb_width * 16; s->v_edge_pos = s->mb_height * 16; s->mb_num = s->mb_width * s->mb_height; s->block_wrap[0] = s->block_wrap[1] = s->block_wrap[2] = s->block_wrap[3] = s->b8_stride; s->block_wrap[4] = s->block_wrap[5] = s->mb_stride; y_size = s->b8_stride * (2 * s->mb_height + 1); c_size = s->mb_stride * (s->mb_height + 1); yc_size = y_size + 2 * c_size; /* convert fourcc to upper case */ s->codec_tag = avpriv_toupper4(s->avctx->codec_tag); s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag); s->avctx->coded_frame = (AVFrame *)&s->current_picture; FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this for (y = 0; y < s->mb_height; y++) for (x = 0; x < s->mb_width; x++) s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride; s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed? if (s->encoding) { /* Allocate MV tables */ FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail); s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1; s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1; s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1; s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1; s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1; s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1; if (s->msmpeg4_version) { FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats, 2 * 2 * (MAX_LEVEL + 1) * (MAX_RUN + 1) * 2 * sizeof(int), fail); } FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail); /* Allocate MB type table */ FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail); // needed for encoding FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix, 64 * 32 * sizeof(int), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix, 64 * 32 * sizeof(int), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail); if (s->avctx->noise_reduction) { FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail); } } } s->picture_count = MAX_PICTURE_COUNT * FFMAX(1, s->avctx->thread_count); FF_ALLOCZ_OR_GOTO(s->avctx, s->picture, s->picture_count * sizeof(Picture), fail); for (i = 0; i < s->picture_count; i++) { avcodec_get_frame_defaults((AVFrame *) &s->picture[i]); } if (s->width && s->height) { FF_ALLOCZ_OR_GOTO(s->avctx, s->error_status_table, mb_array_size * sizeof(uint8_t), fail); if (s->codec_id == CODEC_ID_MPEG4 || (s->flags & CODEC_FLAG_INTERLACED_ME)) { /* interlaced direct mode decoding tables */ for (i = 0; i < 2; i++) { int j, k; for (j = 0; j < 2; j++) { for (k = 0; k < 2; k++) { FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_mv_table_base[i][j][k], mv_table_size * 2 * sizeof(int16_t), fail); s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] + s->mb_stride + 1; } FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail); s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1; } FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail); } } if (s->out_format == FMT_H263) { /* cbp values */ FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail); s->coded_block = s->coded_block_base + s->b8_stride + 1; /* cbp, ac_pred, pred_dir */ FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table, mb_array_size * sizeof(uint8_t), fail); FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail); } if (s->h263_pred || s->h263_plus || !s->encoding) { /* dc values */ // MN: we need these for error resilience of intra-frames FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail); s->dc_val[0] = s->dc_val_base + s->b8_stride + 1; s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1; s->dc_val[2] = s->dc_val[1] + c_size; for (i = 0; i < yc_size; i++) s->dc_val_base[i] = 1024; } /* which mb is a intra block */ FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail); memset(s->mbintra_table, 1, mb_array_size); /* init macroblock skip table */ FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail); // Note the + 1 is for a quicker mpeg4 slice_end detection s->parse_context.state = -1; if ((s->avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || s->avctx->debug_mv) { s->visualization_buffer[0] = av_malloc((s->mb_width * 16 + 2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH); s->visualization_buffer[1] = av_malloc((s->mb_width * 16 + 2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH); s->visualization_buffer[2] = av_malloc((s->mb_width * 16 + 2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH); } } s->context_initialized = 1; s->thread_context[0] = s; if (s->width && s->height) { if (nb_slices > 1) { for (i = 1; i < nb_slices; i++) { s->thread_context[i] = av_malloc(sizeof(MpegEncContext)); memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); } for (i = 0; i < nb_slices; i++) { if (init_duplicate_context(s->thread_context[i], s) < 0) goto fail; s->thread_context[i]->start_mb_y = (s->mb_height * (i) + nb_slices / 2) / nb_slices; s->thread_context[i]->end_mb_y = (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices; } } else { if (init_duplicate_context(s, s) < 0) goto fail; s->start_mb_y = 0; s->end_mb_y = s->mb_height; } s->slice_context_count = nb_slices; } return 0; fail: MPV_common_end(s); return -1; } /* init common structure for both encoder and decoder */ void MPV_common_end(MpegEncContext *s) { int i, j, k; if (s->slice_context_count > 1) { for (i = 0; i < s->slice_context_count; i++) { free_duplicate_context(s->thread_context[i]); } for (i = 1; i < s->slice_context_count; i++) { av_freep(&s->thread_context[i]); } s->slice_context_count = 1; } else free_duplicate_context(s); av_freep(&s->parse_context.buffer); s->parse_context.buffer_size = 0; av_freep(&s->mb_type); av_freep(&s->p_mv_table_base); av_freep(&s->b_forw_mv_table_base); av_freep(&s->b_back_mv_table_base); av_freep(&s->b_bidir_forw_mv_table_base); av_freep(&s->b_bidir_back_mv_table_base); av_freep(&s->b_direct_mv_table_base); s->p_mv_table = NULL; s->b_forw_mv_table = NULL; s->b_back_mv_table = NULL; s->b_bidir_forw_mv_table = NULL; s->b_bidir_back_mv_table = NULL; s->b_direct_mv_table = NULL; for (i = 0; i < 2; i++) { for (j = 0; j < 2; j++) { for (k = 0; k < 2; k++) { av_freep(&s->b_field_mv_table_base[i][j][k]); s->b_field_mv_table[i][j][k] = NULL; } av_freep(&s->b_field_select_table[i][j]); av_freep(&s->p_field_mv_table_base[i][j]); s->p_field_mv_table[i][j] = NULL; } av_freep(&s->p_field_select_table[i]); } av_freep(&s->dc_val_base); av_freep(&s->coded_block_base); av_freep(&s->mbintra_table); av_freep(&s->cbp_table); av_freep(&s->pred_dir_table); av_freep(&s->mbskip_table); av_freep(&s->bitstream_buffer); s->allocated_bitstream_buffer_size = 0; av_freep(&s->avctx->stats_out); av_freep(&s->ac_stats); av_freep(&s->error_status_table); av_freep(&s->mb_index2xy); av_freep(&s->lambda_table); av_freep(&s->q_intra_matrix); av_freep(&s->q_inter_matrix); av_freep(&s->q_intra_matrix16); av_freep(&s->q_inter_matrix16); av_freep(&s->input_picture); av_freep(&s->reordered_input_picture); av_freep(&s->dct_offset); if (s->picture && !s->avctx->internal->is_copy) { for (i = 0; i < s->picture_count; i++) { free_picture(s, &s->picture[i]); } } av_freep(&s->picture); s->context_initialized = 0; s->last_picture_ptr = s->next_picture_ptr = s->current_picture_ptr = NULL; s->linesize = s->uvlinesize = 0; for (i = 0; i < 3; i++) av_freep(&s->visualization_buffer[i]); if (!(s->avctx->active_thread_type & FF_THREAD_FRAME)) avcodec_default_free_buffers(s->avctx); } void init_rl(RLTable *rl, uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3]) { int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1]; uint8_t index_run[MAX_RUN + 1]; int last, run, level, start, end, i; /* If table is static, we can quit if rl->max_level[0] is not NULL */ if (static_store && rl->max_level[0]) return; /* compute max_level[], max_run[] and index_run[] */ for (last = 0; last < 2; last++) { if (last == 0) { start = 0; end = rl->last; } else { start = rl->last; end = rl->n; } memset(max_level, 0, MAX_RUN + 1); memset(max_run, 0, MAX_LEVEL + 1); memset(index_run, rl->n, MAX_RUN + 1); for (i = start; i < end; i++) { run = rl->table_run[i]; level = rl->table_level[i]; if (index_run[run] == rl->n) index_run[run] = i; if (level > max_level[run]) max_level[run] = level; if (run > max_run[level]) max_run[level] = run; } if (static_store) rl->max_level[last] = static_store[last]; else rl->max_level[last] = av_malloc(MAX_RUN + 1); memcpy(rl->max_level[last], max_level, MAX_RUN + 1); if (static_store) rl->max_run[last] = static_store[last] + MAX_RUN + 1; else rl->max_run[last] = av_malloc(MAX_LEVEL + 1); memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1); if (static_store) rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2; else rl->index_run[last] = av_malloc(MAX_RUN + 1); memcpy(rl->index_run[last], index_run, MAX_RUN + 1); } } void init_vlc_rl(RLTable *rl) { int i, q; for (q = 0; q < 32; q++) { int qmul = q * 2; int qadd = (q - 1) | 1; if (q == 0) { qmul = 1; qadd = 0; } for (i = 0; i < rl->vlc.table_size; i++) { int code = rl->vlc.table[i][0]; int len = rl->vlc.table[i][1]; int level, run; if (len == 0) { // illegal code run = 66; level = MAX_LEVEL; } else if (len < 0) { // more bits needed run = 0; level = code; } else { if (code == rl->n) { // esc run = 66; level = 0; } else { run = rl->table_run[code] + 1; level = rl->table_level[code] * qmul + qadd; if (code >= rl->last) run += 192; } } rl->rl_vlc[q][i].len = len; rl->rl_vlc[q][i].level = level; rl->rl_vlc[q][i].run = run; } } } void ff_release_unused_pictures(MpegEncContext*s, int remove_current) { int i; /* release non reference frames */ for (i = 0; i < s->picture_count; i++) { if (s->picture[i].f.data[0] && !s->picture[i].f.reference && (!s->picture[i].owner2 || s->picture[i].owner2 == s) && (remove_current || &s->picture[i] != s->current_picture_ptr) /* && s->picture[i].type!= FF_BUFFER_TYPE_SHARED */) { free_frame_buffer(s, &s->picture[i]); } } } int ff_find_unused_picture(MpegEncContext *s, int shared) { int i; if (shared) { for (i = s->picture_range_start; i < s->picture_range_end; i++) { if (s->picture[i].f.data[0] == NULL && s->picture[i].f.type == 0) return i; } } else { for (i = s->picture_range_start; i < s->picture_range_end; i++) { if (s->picture[i].f.data[0] == NULL && s->picture[i].f.type != 0) return i; // FIXME } for (i = s->picture_range_start; i < s->picture_range_end; i++) { if (s->picture[i].f.data[0] == NULL) return i; } } return AVERROR_INVALIDDATA; } static void update_noise_reduction(MpegEncContext *s) { int intra, i; for (intra = 0; intra < 2; intra++) { if (s->dct_count[intra] > (1 << 16)) { for (i = 0; i < 64; i++) { s->dct_error_sum[intra][i] >>= 1; } s->dct_count[intra] >>= 1; } for (i = 0; i < 64; i++) { s->dct_offset[intra][i] = (s->avctx->noise_reduction * s->dct_count[intra] + s->dct_error_sum[intra][i] / 2) / (s->dct_error_sum[intra][i] + 1); } } } /** * generic function for encode/decode called after coding/decoding * the header and before a frame is coded/decoded. */ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) { int i; Picture *pic; s->mb_skipped = 0; assert(s->last_picture_ptr == NULL || s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3); /* mark & release old frames */ if (s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3) { if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr && s->last_picture_ptr != s->next_picture_ptr && s->last_picture_ptr->f.data[0]) { if (s->last_picture_ptr->owner2 == s) free_frame_buffer(s, s->last_picture_ptr); } /* release forgotten pictures */ /* if (mpeg124/h263) */ if (!s->encoding) { for (i = 0; i < s->picture_count; i++) { if (s->picture[i].owner2 == s && s->picture[i].f.data[0] && &s->picture[i] != s->last_picture_ptr && &s->picture[i] != s->next_picture_ptr && s->picture[i].f.reference) { if (!(avctx->active_thread_type & FF_THREAD_FRAME)) av_log(avctx, AV_LOG_ERROR, "releasing zombie picture\n"); free_frame_buffer(s, &s->picture[i]); } } } } if (!s->encoding) { ff_release_unused_pictures(s, 1); if (s->current_picture_ptr && s->current_picture_ptr->f.data[0] == NULL) { // we already have a unused image // (maybe it was set before reading the header) pic = s->current_picture_ptr; } else { i = ff_find_unused_picture(s, 0); pic = &s->picture[i]; } pic->f.reference = 0; if (!s->dropable) { if (s->codec_id == CODEC_ID_H264) pic->f.reference = s->picture_structure; else if (s->pict_type != AV_PICTURE_TYPE_B) pic->f.reference = 3; } pic->f.coded_picture_number = s->coded_picture_number++; if (ff_alloc_picture(s, pic, 0) < 0) return -1; s->current_picture_ptr = pic; // FIXME use only the vars from current_pic s->current_picture_ptr->f.top_field_first = s->top_field_first; if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO) { if (s->picture_structure != PICT_FRAME) s->current_picture_ptr->f.top_field_first = (s->picture_structure == PICT_TOP_FIELD) == s->first_field; } s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame && !s->progressive_sequence; s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME; } s->current_picture_ptr->f.pict_type = s->pict_type; // if (s->flags && CODEC_FLAG_QSCALE) // s->current_picture_ptr->quality = s->new_picture_ptr->quality; s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I; ff_copy_picture(&s->current_picture, s->current_picture_ptr); if (s->pict_type != AV_PICTURE_TYPE_B) { s->last_picture_ptr = s->next_picture_ptr; if (!s->dropable) s->next_picture_ptr = s->current_picture_ptr; } /* av_log(s->avctx, AV_LOG_DEBUG, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n", s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr, s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL, s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL, s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL, s->pict_type, s->dropable); */ if (s->codec_id != CODEC_ID_H264) { if ((s->last_picture_ptr == NULL || s->last_picture_ptr->f.data[0] == NULL) && (s->pict_type != AV_PICTURE_TYPE_I || s->picture_structure != PICT_FRAME)) { if (s->pict_type != AV_PICTURE_TYPE_I) av_log(avctx, AV_LOG_ERROR, "warning: first frame is no keyframe\n"); else if (s->picture_structure != PICT_FRAME) av_log(avctx, AV_LOG_INFO, "allocate dummy last picture for field based first keyframe\n"); /* Allocate a dummy frame */ i = ff_find_unused_picture(s, 0); s->last_picture_ptr = &s->picture[i]; if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) return -1; ff_thread_report_progress((AVFrame *) s->last_picture_ptr, INT_MAX, 0); ff_thread_report_progress((AVFrame *) s->last_picture_ptr, INT_MAX, 1); } if ((s->next_picture_ptr == NULL || s->next_picture_ptr->f.data[0] == NULL) && s->pict_type == AV_PICTURE_TYPE_B) { /* Allocate a dummy frame */ i = ff_find_unused_picture(s, 0); s->next_picture_ptr = &s->picture[i]; if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) return -1; ff_thread_report_progress((AVFrame *) s->next_picture_ptr, INT_MAX, 0); ff_thread_report_progress((AVFrame *) s->next_picture_ptr, INT_MAX, 1); } } if (s->last_picture_ptr) ff_copy_picture(&s->last_picture, s->last_picture_ptr); if (s->next_picture_ptr) ff_copy_picture(&s->next_picture, s->next_picture_ptr); if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_FRAME) && (s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3)) { if (s->next_picture_ptr) s->next_picture_ptr->owner2 = s; if (s->last_picture_ptr) s->last_picture_ptr->owner2 = s; } assert(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr && s->last_picture_ptr->f.data[0])); if (s->picture_structure!= PICT_FRAME && s->out_format != FMT_H264) { int i; for (i = 0; i < 4; i++) { if (s->picture_structure == PICT_BOTTOM_FIELD) { s->current_picture.f.data[i] += s->current_picture.f.linesize[i]; } s->current_picture.f.linesize[i] *= 2; s->last_picture.f.linesize[i] *= 2; s->next_picture.f.linesize[i] *= 2; } } s->err_recognition = avctx->err_recognition; /* set dequantizer, we can't do it during init as * it might change for mpeg4 and we can't do it in the header * decode as init is not called for mpeg4 there yet */ if (s->mpeg_quant || s->codec_id == CODEC_ID_MPEG2VIDEO) { s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra; s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter; } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) { s->dct_unquantize_intra = s->dct_unquantize_h263_intra; s->dct_unquantize_inter = s->dct_unquantize_h263_inter; } else { s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra; s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter; } if (s->dct_error_sum) { assert(s->avctx->noise_reduction && s->encoding); update_noise_reduction(s); } if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) return ff_xvmc_field_start(s, avctx); return 0; } /* generic function for encode/decode called after a * frame has been coded/decoded. */ void MPV_frame_end(MpegEncContext *s) { int i; /* redraw edges for the frame if decoding didn't complete */ // just to make sure that all data is rendered. if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) { ff_xvmc_field_end(s); } else if ((s->error_count || s->encoding) && !s->avctx->hwaccel && !(s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) && s->unrestricted_mv && s->current_picture.f.reference && !s->intra_only && !(s->flags & CODEC_FLAG_EMU_EDGE)) { int hshift = av_pix_fmt_descriptors[s->avctx->pix_fmt].log2_chroma_w; int vshift = av_pix_fmt_descriptors[s->avctx->pix_fmt].log2_chroma_h; s->dsp.draw_edges(s->current_picture.f.data[0], s->linesize, s->h_edge_pos, s->v_edge_pos, EDGE_WIDTH, EDGE_WIDTH, EDGE_TOP | EDGE_BOTTOM); s->dsp.draw_edges(s->current_picture.f.data[1], s->uvlinesize, s->h_edge_pos >> hshift, s->v_edge_pos >> vshift, EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, EDGE_TOP | EDGE_BOTTOM); s->dsp.draw_edges(s->current_picture.f.data[2], s->uvlinesize, s->h_edge_pos >> hshift, s->v_edge_pos >> vshift, EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, EDGE_TOP | EDGE_BOTTOM); } emms_c(); s->last_pict_type = s->pict_type; s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f.quality; if (s->pict_type!= AV_PICTURE_TYPE_B) { s->last_non_b_pict_type = s->pict_type; } #if 0 /* copy back current_picture variables */ for (i = 0; i < MAX_PICTURE_COUNT; i++) { if (s->picture[i].f.data[0] == s->current_picture.f.data[0]) { s->picture[i] = s->current_picture; break; } } assert(i < MAX_PICTURE_COUNT); #endif if (s->encoding) { /* release non-reference frames */ for (i = 0; i < s->picture_count; i++) { if (s->picture[i].f.data[0] && !s->picture[i].f.reference /* && s->picture[i].type != FF_BUFFER_TYPE_SHARED */) { free_frame_buffer(s, &s->picture[i]); } } } // clear copies, to avoid confusion #if 0 memset(&s->last_picture, 0, sizeof(Picture)); memset(&s->next_picture, 0, sizeof(Picture)); memset(&s->current_picture, 0, sizeof(Picture)); #endif s->avctx->coded_frame = (AVFrame *) s->current_picture_ptr; if (s->codec_id != CODEC_ID_H264 && s->current_picture.f.reference) { ff_thread_report_progress((AVFrame *) s->current_picture_ptr, s->mb_height - 1, 0); } } /** * Draw a line from (ex, ey) -> (sx, sy). * @param w width of the image * @param h height of the image * @param stride stride/linesize of the image * @param color color of the arrow */ static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color) { int x, y, fr, f; sx = av_clip(sx, 0, w - 1); sy = av_clip(sy, 0, h - 1); ex = av_clip(ex, 0, w - 1); ey = av_clip(ey, 0, h - 1); buf[sy * stride + sx] += color; if (FFABS(ex - sx) > FFABS(ey - sy)) { if (sx > ex) { FFSWAP(int, sx, ex); FFSWAP(int, sy, ey); } buf += sx + sy * stride; ex -= sx; f = ((ey - sy) << 16) / ex; for (x = 0; x = ex; x++) { y = (x * f) >> 16; fr = (x * f) & 0xFFFF; buf[y * stride + x] += (color * (0x10000 - fr)) >> 16; buf[(y + 1) * stride + x] += (color * fr ) >> 16; } } else { if (sy > ey) { FFSWAP(int, sx, ex); FFSWAP(int, sy, ey); } buf += sx + sy * stride; ey -= sy; if (ey) f = ((ex - sx) << 16) / ey; else f = 0; for (y = 0; y = ey; y++) { x = (y * f) >> 16; fr = (y * f) & 0xFFFF; buf[y * stride + x] += (color * (0x10000 - fr)) >> 16; buf[y * stride + x + 1] += (color * fr ) >> 16; } } } /** * Draw an arrow from (ex, ey) -> (sx, sy). * @param w width of the image * @param h height of the image * @param stride stride/linesize of the image * @param color color of the arrow */ static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color) { int dx,dy; sx = av_clip(sx, -100, w + 100); sy = av_clip(sy, -100, h + 100); ex = av_clip(ex, -100, w + 100); ey = av_clip(ey, -100, h + 100); dx = ex - sx; dy = ey - sy; if (dx * dx + dy * dy > 3 * 3) { int rx = dx + dy; int ry = -dx + dy; int length = ff_sqrt((rx * rx + ry * ry) << 8); // FIXME subpixel accuracy rx = ROUNDED_DIV(rx * 3 << 4, length); ry = ROUNDED_DIV(ry * 3 << 4, length); draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color); draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color); } draw_line(buf, sx, sy, ex, ey, w, h, stride, color); } /** * Print debugging info for the given picture. */ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict) { if (s->avctx->hwaccel || !pict || !pict->mb_type) return; if (s->avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) { int x,y; av_log(s->avctx,AV_LOG_DEBUG,"New frame, type: "); switch (pict->pict_type) { case AV_PICTURE_TYPE_I: av_log(s->avctx,AV_LOG_DEBUG,"I\n"); break; case AV_PICTURE_TYPE_P: av_log(s->avctx,AV_LOG_DEBUG,"P\n"); break; case AV_PICTURE_TYPE_B: av_log(s->avctx,AV_LOG_DEBUG,"B\n"); break; case AV_PICTURE_TYPE_S: av_log(s->avctx,AV_LOG_DEBUG,"S\n"); break; case AV_PICTURE_TYPE_SI: av_log(s->avctx,AV_LOG_DEBUG,"SI\n"); break; case AV_PICTURE_TYPE_SP: av_log(s->avctx,AV_LOG_DEBUG,"SP\n"); break; } for (y = 0; y < s->mb_height; y++) { for (x = 0; x < s->mb_width; x++) { if (s->avctx->debug & FF_DEBUG_SKIP) { int count = s->mbskip_table[x + y * s->mb_stride]; if (count > 9) count = 9; av_log(s->avctx, AV_LOG_DEBUG, "%1d", count); } if (s->avctx->debug & FF_DEBUG_QP) { av_log(s->avctx, AV_LOG_DEBUG, "%2d", pict->qscale_table[x + y * s->mb_stride]); } if (s->avctx->debug & FF_DEBUG_MB_TYPE) { int mb_type = pict->mb_type[x + y * s->mb_stride]; // Type & MV direction if (IS_PCM(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "P"); else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "A"); else if (IS_INTRA4x4(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "i"); else if (IS_INTRA16x16(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "I"); else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "d"); else if (IS_DIRECT(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "D"); else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "g"); else if (IS_GMC(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "G"); else if (IS_SKIP(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "S"); else if (!USES_LIST(mb_type, 1)) av_log(s->avctx, AV_LOG_DEBUG, ">"); else if (!USES_LIST(mb_type, 0)) av_log(s->avctx, AV_LOG_DEBUG, "<"); else { assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); av_log(s->avctx, AV_LOG_DEBUG, "X"); } // segmentation if (IS_8X8(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "+"); else if (IS_16X8(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "-"); else if (IS_8X16(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "|"); else if (IS_INTRA(mb_type) || IS_16X16(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, " "); else av_log(s->avctx, AV_LOG_DEBUG, "?"); if (IS_INTERLACED(mb_type)) av_log(s->avctx, AV_LOG_DEBUG, "="); else av_log(s->avctx, AV_LOG_DEBUG, " "); } // av_log(s->avctx, AV_LOG_DEBUG, " "); } av_log(s->avctx, AV_LOG_DEBUG, "\n"); } } if ((s->avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)) { const int shift = 1 + s->quarter_sample; int mb_y; uint8_t *ptr; int i; int h_chroma_shift, v_chroma_shift, block_height; const int width = s->avctx->width; const int height = s->avctx->height; const int mv_sample_log2 = 4 - pict->motion_subsample_log2; const int mv_stride = (s->mb_width << mv_sample_log2) + (s->codec_id == CODEC_ID_H264 ? 0 : 1); s->low_delay = 0; // needed to see the vectors without trashing the buffers avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); for (i = 0; i < 3; i++) { memcpy(s->visualization_buffer[i], pict->data[i], (i == 0) ? pict->linesize[i] * height: pict->linesize[i] * height >> v_chroma_shift); pict->data[i] = s->visualization_buffer[i]; } pict->type = FF_BUFFER_TYPE_COPY; ptr = pict->data[0]; block_height = 16 >> v_chroma_shift; for (mb_y = 0; mb_y < s->mb_height; mb_y++) { int mb_x; for (mb_x = 0; mb_x < s->mb_width; mb_x++) { const int mb_index = mb_x + mb_y * s->mb_stride; if ((s->avctx->debug_mv) && pict->motion_val) { int type; for (type = 0; type < 3; type++) { int direction = 0; switch (type) { case 0: if ((!(s->avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) || (pict->pict_type!= AV_PICTURE_TYPE_P)) continue; direction = 0; break; case 1: if ((!(s->avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) || (pict->pict_type!= AV_PICTURE_TYPE_B)) continue; direction = 0; break; case 2: if ((!(s->avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) || (pict->pict_type!= AV_PICTURE_TYPE_B)) continue; direction = 1; break; } if (!USES_LIST(pict->mb_type[mb_index], direction)) continue; if (IS_8X8(pict->mb_type[mb_index])) { int i; for (i = 0; i < 4; i++) { int sx = mb_x * 16 + 4 + 8 * (i & 1); int sy = mb_y * 16 + 4 + 8 * (i >> 1); int xy = (mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1); int mx = (pict->motion_val[direction][xy][0] >> shift) + sx; int my = (pict->motion_val[direction][xy][1] >> shift) + sy; draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100); } } else if (IS_16X8(pict->mb_type[mb_index])) { int i; for (i = 0; i < 2; i++) { int sx = mb_x * 16 + 8; int sy = mb_y * 16 + 4 + 8 * i; int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1); int mx = (pict->motion_val[direction][xy][0] >> shift); int my = (pict->motion_val[direction][xy][1] >> shift); if (IS_INTERLACED(pict->mb_type[mb_index])) my *= 2; draw_arrow(ptr, sx, sy, mx + sx, my + sy, width, height, s->linesize, 100); } } else if (IS_8X16(pict->mb_type[mb_index])) { int i; for (i = 0; i < 2; i++) { int sx = mb_x * 16 + 4 + 8 * i; int sy = mb_y * 16 + 8; int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1); int mx = pict->motion_val[direction][xy][0] >> shift; int my = pict->motion_val[direction][xy][1] >> shift; if (IS_INTERLACED(pict->mb_type[mb_index])) my *= 2; draw_arrow(ptr, sx, sy, mx + sx, my + sy, width, height, s->linesize, 100); } } else { int sx = mb_x * 16 + 8; int sy = mb_y * 16 + 8; int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2; int mx = pict->motion_val[direction][xy][0] >> shift + sx; int my = pict->motion_val[direction][xy][1] >> shift + sy; draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100); } } } if ((s->avctx->debug & FF_DEBUG_VIS_QP) && pict->motion_val) { uint64_t c = (pict->qscale_table[mb_index] * 128 / 31) * 0x0101010101010101ULL; int y; for (y = 0; y < block_height; y++) { *(uint64_t *)(pict->data[1] + 8 * mb_x + (block_height * mb_y + y) * pict->linesize[1]) = c; *(uint64_t *)(pict->data[2] + 8 * mb_x + (block_height * mb_y + y) * pict->linesize[2]) = c; } } if ((s->avctx->debug & FF_DEBUG_VIS_MB_TYPE) && pict->motion_val) { int mb_type = pict->mb_type[mb_index]; uint64_t u,v; int y; #define COLOR(theta, r) \ u = (int)(128 + r * cos(theta * 3.141592 / 180)); \ v = (int)(128 + r * sin(theta * 3.141592 / 180)); u = v = 128; if (IS_PCM(mb_type)) { COLOR(120, 48) } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) || IS_INTRA16x16(mb_type)) { COLOR(30, 48) } else if (IS_INTRA4x4(mb_type)) { COLOR(90, 48) } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) { // COLOR(120, 48) } else if (IS_DIRECT(mb_type)) { COLOR(150, 48) } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) { COLOR(170, 48) } else if (IS_GMC(mb_type)) { COLOR(190, 48) } else if (IS_SKIP(mb_type)) { // COLOR(180, 48) } else if (!USES_LIST(mb_type, 1)) { COLOR(240, 48) } else if (!USES_LIST(mb_type, 0)) { COLOR(0, 48) } else { assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); COLOR(300,48) } u *= 0x0101010101010101ULL; v *= 0x0101010101010101ULL; for (y = 0; y < block_height; y++) { *(uint64_t *)(pict->data[1] + 8 * mb_x + (block_height * mb_y + y) * pict->linesize[1]) = u; *(uint64_t *)(pict->data[2] + 8 * mb_x + (block_height * mb_y + y) * pict->linesize[2]) = v; } // segmentation if (IS_8X8(mb_type) || IS_16X8(mb_type)) { *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 + (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL; *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 + (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL; } if (IS_8X8(mb_type) || IS_8X16(mb_type)) { for (y = 0; y < 16; y++) pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) * pict->linesize[0]] ^= 0x80; } if (IS_8X8(mb_type) && mv_sample_log2 >= 2) { int dm = 1 << (mv_sample_log2 - 2); for (i = 0; i < 4; i++) { int sx = mb_x * 16 + 8 * (i & 1); int sy = mb_y * 16 + 8 * (i >> 1); int xy = (mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1); // FIXME bidir int32_t *mv = (int32_t *) &pict->motion_val[0][xy]; if (mv[0] != mv[dm] || mv[dm * mv_stride] != mv[dm * (mv_stride + 1)]) for (y = 0; y < 8; y++) pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80; if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)]) *(uint64_t *)(pict->data[0] + sx + (sy + 4) * pict->linesize[0]) ^= 0x8080808080808080ULL; } } if (IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264) { // hmm } } s->mbskip_table[mb_index] = 0; } } } } static inline int hpel_motion_lowres(MpegEncContext *s, uint8_t *dest, uint8_t *src, int field_based, int field_select, int src_x, int src_y, int width, int height, int stride, int h_edge_pos, int v_edge_pos, int w, int h, h264_chroma_mc_func *pix_op, int motion_x, int motion_y) { const int lowres = s->avctx->lowres; const int op_index = FFMIN(lowres, 2); const int s_mask = (2 << lowres) - 1; int emu = 0; int sx, sy; 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 > h_edge_pos - (!!sx) - w || (unsigned)src_y > (v_edge_pos >> field_based) - (!!sy) - h) { s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w + 1, (h + 1) << field_based, src_x, src_y << field_based, h_edge_pos, v_edge_pos); src = s->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 **ref_picture, h264_chroma_mc_func *pix_op, int motion_x, int motion_y, int h, int mb_y) { uint8_t *ptr_y, *ptr_cb, *ptr_cr; int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy, uvsx, uvsy; const int lowres = s->avctx->lowres; const int op_index = FFMIN(lowres, 2); 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; linesize = s->current_picture.f.linesize[0] << field_based; uvlinesize = s->current_picture.f.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 { 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); } 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 > h_edge_pos - (!!sx) - 2 * block_s || (unsigned) src_y > (v_edge_pos >> field_based) - (!!sy) - h) { s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17 + field_based, src_x, src_y << field_based, h_edge_pos, v_edge_pos); ptr_y = s->edge_emu_buffer; if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize; s->dsp.emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9, 9 + field_based, uvsrc_x, uvsrc_y << field_based, h_edge_pos >> 1, v_edge_pos >> 1); s->dsp.emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize, 9, 9 + field_based, uvsrc_x, uvsrc_y << field_based, h_edge_pos >> 1, v_edge_pos >> 1); ptr_cb = uvbuf; ptr_cr = uvbuf + 16; } } // 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->flags & CODEC_FLAG_GRAY)) { uvsx = (uvsx << 2) >> lowres; uvsy = (uvsy << 2) >> lowres; pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, 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 **ref_picture, h264_chroma_mc_func * pix_op, int mx, int my) { const int lowres = s->avctx->lowres; const int op_index = FFMIN(lowres, 2); 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, offset, sx, sy; uint8_t *ptr; 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 (s->flags & CODEC_FLAG_EMU_EDGE) { if ((unsigned) src_x > h_edge_pos - (!!sx) - block_s || (unsigned) src_y > v_edge_pos - (!!sy) - block_s) { s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); ptr = s->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->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); ptr = s->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 **ref_picture, h264_chroma_mc_func *pix_op) { int mx, my; int mb_x, mb_y, i; 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 (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->flags & 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->current_picture_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 (i = 0; i < 2; i++) { uint8_t **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->current_picture_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 (i = 0; i < 2; i++) { int j; for (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->dsp.avg_h264_chroma_pixels_tab; } } else { for (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->dsp.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->current_picture_ptr->f.data; } } } break; default: assert(0); } } /** * find the lowest MB row referenced in the MVs */ int MPV_lowest_referenced_row(MpegEncContext *s, int dir) { int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample; int my, off, i, mvs; if (s->picture_structure != PICT_FRAME) 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 (i = 0; i < mvs; i++) { my = s->mv[dir][i][1]<> 6; return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1); unhandled: return s->mb_height-1; } /* put block[] to dest[] */ static inline void put_dct(MpegEncContext *s, DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) { s->dct_unquantize_intra(s, block, i, qscale); s->dsp.idct_put (dest, line_size, block); } /* add block[] to dest[] */ static inline void add_dct(MpegEncContext *s, DCTELEM *block, int i, uint8_t *dest, int line_size) { if (s->block_last_index[i] >= 0) { s->dsp.idct_add (dest, line_size, block); } } static inline void add_dequant_dct(MpegEncContext *s, DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) { if (s->block_last_index[i] >= 0) { s->dct_unquantize_inter(s, block, i, qscale); s->dsp.idct_add (dest, line_size, block); } } /** * Clean dc, ac, coded_block for the current non-intra MB. */ void ff_clean_intra_table_entries(MpegEncContext *s) { int wrap = s->b8_stride; int xy = s->block_index[0]; s->dc_val[0][xy ] = s->dc_val[0][xy + 1 ] = s->dc_val[0][xy + wrap] = s->dc_val[0][xy + 1 + wrap] = 1024; /* ac pred */ memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t)); memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t)); if (s->msmpeg4_version>=3) { s->coded_block[xy ] = s->coded_block[xy + 1 ] = s->coded_block[xy + wrap] = s->coded_block[xy + 1 + wrap] = 0; } /* chroma */ wrap = s->mb_stride; xy = s->mb_x + s->mb_y * wrap; s->dc_val[1][xy] = s->dc_val[2][xy] = 1024; /* ac pred */ memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t)); memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t)); s->mbintra_table[xy]= 0; } /* generic function called after a macroblock has been parsed by the decoder or after it has been encoded by the encoder. 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_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64], int lowres_flag, int is_mpeg12) { const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){ ff_xvmc_decode_mb(s);//xvmc uses pblocks return; } if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { /* save DCT coefficients */ int i,j; DCTELEM *dct = &s->current_picture.f.dct_coeff[mb_xy * 64 * 6]; av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y); for(i=0; i<6; i++){ for(j=0; j<64; j++){ *dct++ = block[i][s->dsp.idct_permutation[j]]; av_log(s->avctx, AV_LOG_DEBUG, "%5d", dct[-1]); } av_log(s->avctx, AV_LOG_DEBUG, "\n"); } } s->current_picture.f.qscale_table[mb_xy] = s->qscale; /* update DC predictors for P macroblocks */ if (!s->mb_intra) { if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) { if(s->mbintra_table[mb_xy]) ff_clean_intra_table_entries(s); } else { s->last_dc[0] = s->last_dc[1] = s->last_dc[2] = 128 << s->intra_dc_precision; } } else if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) s->mbintra_table[mb_xy]=1; if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc uint8_t *dest_y, *dest_cb, *dest_cr; int dct_linesize, dct_offset; op_pixels_func (*op_pix)[4]; qpel_mc_func (*op_qpix)[16]; const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics const int uvlinesize = s->current_picture.f.linesize[1]; const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag; const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8; /* avoid copy if macroblock skipped in last frame too */ /* skip only during decoding as we might trash the buffers during encoding a bit */ if(!s->encoding){ uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; if (s->mb_skipped) { s->mb_skipped= 0; assert(s->pict_type!=AV_PICTURE_TYPE_I); *mbskip_ptr = 1; } else if(!s->current_picture.f.reference) { *mbskip_ptr = 1; } else{ *mbskip_ptr = 0; /* not skipped */ } } dct_linesize = linesize << s->interlaced_dct; dct_offset = s->interlaced_dct ? linesize : linesize * block_size; if(readable){ dest_y= s->dest[0]; dest_cb= s->dest[1]; dest_cr= s->dest[2]; }else{ dest_y = s->b_scratchpad; dest_cb= s->b_scratchpad+16*linesize; dest_cr= s->b_scratchpad+32*linesize; } if (!s->mb_intra) { /* motion handling */ /* decoding or more than one mb_type (MC was already done otherwise) */ if(!s->encoding){ if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) { if (s->mv_dir & MV_DIR_FORWARD) { ff_thread_await_progress((AVFrame*)s->last_picture_ptr, MPV_lowest_referenced_row(s, 0), 0); } if (s->mv_dir & MV_DIR_BACKWARD) { ff_thread_await_progress((AVFrame*)s->next_picture_ptr, MPV_lowest_referenced_row(s, 1), 0); } } if(lowres_flag){ h264_chroma_mc_func *op_pix = s->dsp.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_picture.f.data, op_pix); op_pix = s->dsp.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_picture.f.data, op_pix); } }else{ op_qpix= s->me.qpel_put; if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){ op_pix = s->dsp.put_pixels_tab; }else{ op_pix = s->dsp.put_no_rnd_pixels_tab; } if (s->mv_dir & MV_DIR_FORWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix); op_pix = s->dsp.avg_pixels_tab; op_qpix= s->me.qpel_avg; } if (s->mv_dir & MV_DIR_BACKWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.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) goto skip_idct; } /* add dct residue */ if(s->encoding || !( s->msmpeg4_version || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || (s->codec_id==CODEC_ID_MPEG4 && !s->mpeg_quant))){ add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ if (s->chroma_y_shift){ add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); }else{ dct_linesize >>= 1; dct_offset >>=1; add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); } } } else if(is_mpeg12 || (s->codec_id != CODEC_ID_WMV2)){ add_dct(s, block[0], 0, dest_y , dct_linesize); add_dct(s, block[1], 1, dest_y + block_size, dct_linesize); add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize); add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize); if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ if(s->chroma_y_shift){//Chroma420 add_dct(s, block[4], 4, dest_cb, uvlinesize); add_dct(s, block[5], 5, dest_cr, uvlinesize); }else{ //chroma422 dct_linesize = uvlinesize << s->interlaced_dct; dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8; add_dct(s, block[4], 4, dest_cb, dct_linesize); add_dct(s, block[5], 5, dest_cr, dct_linesize); add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); if(!s->chroma_x_shift){//Chroma444 add_dct(s, block[8], 8, dest_cb+8, dct_linesize); add_dct(s, block[9], 9, dest_cr+8, dct_linesize); add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize); add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize); } } }//fi gray } else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) { ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); } } else { /* dct only in intra block */ if(s->encoding || !(s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO)){ 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->flags&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->dsp.idct_put(dest_y , dct_linesize, block[0]); s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]); s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]); s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]); if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ if(s->chroma_y_shift){ s->dsp.idct_put(dest_cb, uvlinesize, block[4]); s->dsp.idct_put(dest_cr, uvlinesize, block[5]); }else{ dct_linesize = uvlinesize << s->interlaced_dct; dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8; s->dsp.idct_put(dest_cb, dct_linesize, block[4]); s->dsp.idct_put(dest_cr, dct_linesize, block[5]); s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]); s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]); if(!s->chroma_x_shift){//Chroma444 s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]); s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]); s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]); s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]); } } }//gray } } skip_idct: if(!readable){ s->dsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); } } } void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){ #if !CONFIG_SMALL if(s->out_format == FMT_MPEG1) { if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1); else MPV_decode_mb_internal(s, block, 0, 1); } else #endif if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0); else MPV_decode_mb_internal(s, block, 0, 0); } /** * @param h is the normal height, this will be reduced automatically if needed for the last row */ void ff_draw_horiz_band(MpegEncContext *s, int y, int h){ const int field_pic= s->picture_structure != PICT_FRAME; if(field_pic){ h <<= 1; y <<= 1; } if (!s->avctx->hwaccel && !(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) && s->unrestricted_mv && s->current_picture.f.reference && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) { int sides = 0, edge_h; int hshift = av_pix_fmt_descriptors[s->avctx->pix_fmt].log2_chroma_w; int vshift = av_pix_fmt_descriptors[s->avctx->pix_fmt].log2_chroma_h; if (y==0) sides |= EDGE_TOP; if (y + h >= s->v_edge_pos) sides |= EDGE_BOTTOM; edge_h= FFMIN(h, s->v_edge_pos - y); s->dsp.draw_edges(s->current_picture_ptr->f.data[0] + y *s->linesize, s->linesize, s->h_edge_pos, edge_h, EDGE_WIDTH, EDGE_WIDTH, sides); s->dsp.draw_edges(s->current_picture_ptr->f.data[1] + (y>>vshift)*s->uvlinesize, s->uvlinesize, s->h_edge_pos>>hshift, edge_h>>vshift, EDGE_WIDTH>>hshift, EDGE_WIDTH>>vshift, sides); s->dsp.draw_edges(s->current_picture_ptr->f.data[2] + (y>>vshift)*s->uvlinesize, s->uvlinesize, s->h_edge_pos>>hshift, edge_h>>vshift, EDGE_WIDTH>>hshift, EDGE_WIDTH>>vshift, sides); } h= FFMIN(h, s->avctx->height - y); if(field_pic && s->first_field && !(s->avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return; if (s->avctx->draw_horiz_band) { AVFrame *src; int offset[AV_NUM_DATA_POINTERS]; int i; if(s->pict_type==AV_PICTURE_TYPE_B || s->low_delay || (s->avctx->slice_flags&SLICE_FLAG_CODED_ORDER)) src= (AVFrame*)s->current_picture_ptr; else if(s->last_picture_ptr) src= (AVFrame*)s->last_picture_ptr; else return; if(s->pict_type==AV_PICTURE_TYPE_B && s->picture_structure == PICT_FRAME && s->out_format != FMT_H264){ for (i = 0; i < AV_NUM_DATA_POINTERS; i++) offset[i] = 0; }else{ offset[0]= y * s->linesize; offset[1]= offset[2]= (y >> s->chroma_y_shift) * s->uvlinesize; for (i = 3; i < AV_NUM_DATA_POINTERS; i++) offset[i] = 0; } emms_c(); s->avctx->draw_horiz_band(s->avctx, src, offset, y, s->picture_structure, h); } } void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics const int uvlinesize = s->current_picture.f.linesize[1]; const int mb_size= 4 - s->avctx->lowres; s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2; s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2; s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2; s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2; s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; //block_index is not used by mpeg2, so it is not affected by chroma_format s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size); s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME)) { if(s->picture_structure==PICT_FRAME){ s->dest[0] += s->mb_y * linesize << mb_size; s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); }else{ s->dest[0] += (s->mb_y>>1) * linesize << mb_size; s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); assert((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD)); } } } void ff_mpeg_flush(AVCodecContext *avctx){ int i; MpegEncContext *s = avctx->priv_data; if(s==NULL || s->picture==NULL) return; for(i=0; ipicture_count; i++){ if (s->picture[i].f.data[0] && (s->picture[i].f.type == FF_BUFFER_TYPE_INTERNAL || s->picture[i].f.type == FF_BUFFER_TYPE_USER)) free_frame_buffer(s, &s->picture[i]); } s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL; s->mb_x= s->mb_y= 0; s->parse_context.state= -1; s->parse_context.frame_start_found= 0; s->parse_context.overread= 0; s->parse_context.overread_index= 0; s->parse_context.index= 0; s->parse_context.last_index= 0; s->bitstream_buffer_size=0; s->pp_time=0; } static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, nCoeffs; const uint16_t *quant_matrix; nCoeffs= s->block_last_index[n]; if (n < 4) block[0] = block[0] * s->y_dc_scale; else block[0] = block[0] * s->c_dc_scale; /* XXX: only mpeg1 */ quant_matrix = s->intra_matrix; for(i=1;i<=nCoeffs;i++) { int j= s->intra_scantable.permutated[i]; level = block[j]; if (level) { if (level < 0) { level = -level; level = (int)(level * qscale * quant_matrix[j]) >> 3; level = (level - 1) | 1; level = -level; } else { level = (int)(level * qscale * quant_matrix[j]) >> 3; level = (level - 1) | 1; } block[j] = level; } } } static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, nCoeffs; const uint16_t *quant_matrix; nCoeffs= s->block_last_index[n]; quant_matrix = s->inter_matrix; for(i=0; i<=nCoeffs; i++) { int j= s->intra_scantable.permutated[i]; level = block[j]; if (level) { if (level < 0) { level = -level; level = (((level << 1) + 1) * qscale * ((int) (quant_matrix[j]))) >> 4; level = (level - 1) | 1; level = -level; } else { level = (((level << 1) + 1) * qscale * ((int) (quant_matrix[j]))) >> 4; level = (level - 1) | 1; } block[j] = level; } } } static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, nCoeffs; const uint16_t *quant_matrix; if(s->alternate_scan) nCoeffs= 63; else nCoeffs= s->block_last_index[n]; if (n < 4) block[0] = block[0] * s->y_dc_scale; else block[0] = block[0] * s->c_dc_scale; quant_matrix = s->intra_matrix; for(i=1;i<=nCoeffs;i++) { int j= s->intra_scantable.permutated[i]; level = block[j]; if (level) { if (level < 0) { level = -level; level = (int)(level * qscale * quant_matrix[j]) >> 3; level = -level; } else { level = (int)(level * qscale * quant_matrix[j]) >> 3; } block[j] = level; } } } static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, nCoeffs; const uint16_t *quant_matrix; int sum=-1; if(s->alternate_scan) nCoeffs= 63; else nCoeffs= s->block_last_index[n]; if (n < 4) block[0] = block[0] * s->y_dc_scale; else block[0] = block[0] * s->c_dc_scale; quant_matrix = s->intra_matrix; for(i=1;i<=nCoeffs;i++) { int j= s->intra_scantable.permutated[i]; level = block[j]; if (level) { if (level < 0) { level = -level; level = (int)(level * qscale * quant_matrix[j]) >> 3; level = -level; } else { level = (int)(level * qscale * quant_matrix[j]) >> 3; } block[j] = level; sum+=level; } } block[63]^=sum&1; } static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, nCoeffs; const uint16_t *quant_matrix; int sum=-1; if(s->alternate_scan) nCoeffs= 63; else nCoeffs= s->block_last_index[n]; quant_matrix = s->inter_matrix; for(i=0; i<=nCoeffs; i++) { int j= s->intra_scantable.permutated[i]; level = block[j]; if (level) { if (level < 0) { level = -level; level = (((level << 1) + 1) * qscale * ((int) (quant_matrix[j]))) >> 4; level = -level; } else { level = (((level << 1) + 1) * qscale * ((int) (quant_matrix[j]))) >> 4; } block[j] = level; sum+=level; } } block[63]^=sum&1; } static void dct_unquantize_h263_intra_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, qmul, qadd; int nCoeffs; assert(s->block_last_index[n]>=0); qmul = qscale << 1; if (!s->h263_aic) { if (n < 4) block[0] = block[0] * s->y_dc_scale; else block[0] = block[0] * s->c_dc_scale; qadd = (qscale - 1) | 1; }else{ qadd = 0; } if(s->ac_pred) nCoeffs=63; else nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; for(i=1; i<=nCoeffs; i++) { level = block[i]; if (level) { if (level < 0) { level = level * qmul - qadd; } else { level = level * qmul + qadd; } block[i] = level; } } } static void dct_unquantize_h263_inter_c(MpegEncContext *s, DCTELEM *block, int n, int qscale) { int i, level, qmul, qadd; int nCoeffs; assert(s->block_last_index[n]>=0); qadd = (qscale - 1) | 1; qmul = qscale << 1; nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; for(i=0; i<=nCoeffs; i++) { level = block[i]; if (level) { if (level < 0) { level = level * qmul - qadd; } else { level = level * qmul + qadd; } block[i] = level; } } } /** * set qscale and update qscale dependent variables. */ void ff_set_qscale(MpegEncContext * s, int qscale) { if (qscale < 1) qscale = 1; else if (qscale > 31) qscale = 31; s->qscale = qscale; s->chroma_qscale= s->chroma_qscale_table[qscale]; s->y_dc_scale= s->y_dc_scale_table[ qscale ]; s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ]; } void MPV_report_decode_progress(MpegEncContext *s) { if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->error_occurred) ff_thread_report_progress((AVFrame*)s->current_picture_ptr, s->mb_y, 0); }