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Diffstat (limited to 'contrib/ffmpeg/libavcodec/wmv2enc.c')
-rw-r--r--contrib/ffmpeg/libavcodec/wmv2enc.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/contrib/ffmpeg/libavcodec/wmv2enc.c b/contrib/ffmpeg/libavcodec/wmv2enc.c
deleted file mode 100644
index 641f0dc85..000000000
--- a/contrib/ffmpeg/libavcodec/wmv2enc.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * Copyright (c) 2002 The FFmpeg Project.
- *
- * 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 "avcodec.h"
-#include "dsputil.h"
-#include "mpegvideo.h"
-#include "msmpeg4.h"
-#include "msmpeg4data.h"
-#include "wmv2.h"
-
-
-static int encode_ext_header(Wmv2Context *w){
- MpegEncContext * const s= &w->s;
- PutBitContext pb;
- int code;
-
- init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size);
-
- put_bits(&pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29
- put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047));
-
- put_bits(&pb, 1, w->mspel_bit=1);
- put_bits(&pb, 1, s->loop_filter);
- put_bits(&pb, 1, w->abt_flag=1);
- put_bits(&pb, 1, w->j_type_bit=1);
- put_bits(&pb, 1, w->top_left_mv_flag=0);
- put_bits(&pb, 1, w->per_mb_rl_bit=1);
- put_bits(&pb, 3, code=1);
-
- flush_put_bits(&pb);
-
- s->slice_height = s->mb_height / code;
-
- return 0;
-}
-
-static int wmv2_encode_init(AVCodecContext *avctx){
- Wmv2Context * const w= avctx->priv_data;
-
- if(MPV_encode_init(avctx) < 0)
- return -1;
-
- ff_wmv2_common_init(w);
-
- avctx->extradata_size= 4;
- avctx->extradata= av_mallocz(avctx->extradata_size + 10);
- encode_ext_header(w);
-
- return 0;
-}
-
-#if 0 /* unused, remove? */
-static int wmv2_encode_end(AVCodecContext *avctx){
-
- if(MPV_encode_end(avctx) < 0)
- return -1;
-
- avctx->extradata_size= 0;
- av_freep(&avctx->extradata);
-
- return 0;
-}
-#endif
-
-int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number)
-{
- Wmv2Context * const w= (Wmv2Context*)s;
-
- put_bits(&s->pb, 1, s->pict_type - 1);
- if(s->pict_type == I_TYPE){
- put_bits(&s->pb, 7, 0);
- }
- put_bits(&s->pb, 5, s->qscale);
-
- s->dc_table_index = 1;
- s->mv_table_index = 1; /* only if P frame */
-// s->use_skip_mb_code = 1; /* only if P frame */
- s->per_mb_rl_table = 0;
- s->mspel= 0;
- w->per_mb_abt=0;
- w->abt_type=0;
- w->j_type=0;
-
- assert(s->flipflop_rounding);
-
- if (s->pict_type == I_TYPE) {
- assert(s->no_rounding==1);
- if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type);
-
- if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
-
- if(!s->per_mb_rl_table){
- ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index);
- ff_msmpeg4_code012(&s->pb, s->rl_table_index);
- }
-
- put_bits(&s->pb, 1, s->dc_table_index);
-
- s->inter_intra_pred= 0;
- }else{
- int cbp_index;
-
- put_bits(&s->pb, 2, SKIP_TYPE_NONE);
-
- ff_msmpeg4_code012(&s->pb, cbp_index=0);
- if(s->qscale <= 10){
- int map[3]= {0,2,1};
- w->cbp_table_index= map[cbp_index];
- }else if(s->qscale <= 20){
- int map[3]= {1,0,2};
- w->cbp_table_index= map[cbp_index];
- }else{
- int map[3]= {2,1,0};
- w->cbp_table_index= map[cbp_index];
- }
-
- if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel);
-
- if(w->abt_flag){
- put_bits(&s->pb, 1, w->per_mb_abt^1);
- if(!w->per_mb_abt){
- ff_msmpeg4_code012(&s->pb, w->abt_type);
- }
- }
-
- if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
-
- if(!s->per_mb_rl_table){
- ff_msmpeg4_code012(&s->pb, s->rl_table_index);
- s->rl_chroma_table_index = s->rl_table_index;
- }
- put_bits(&s->pb, 1, s->dc_table_index);
- put_bits(&s->pb, 1, s->mv_table_index);
-
- s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
- }
- s->esc3_level_length= 0;
- s->esc3_run_length= 0;
-
- return 0;
-}
-
-/* Nearly identical to wmv1 but that is just because we do not use the
- * useless M$ crap features. It is duplicated here in case someone wants
- * to add support for these crap features. */
-void ff_wmv2_encode_mb(MpegEncContext * s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
-{
- Wmv2Context * const w= (Wmv2Context*)s;
- int cbp, coded_cbp, i;
- int pred_x, pred_y;
- uint8_t *coded_block;
-
- ff_msmpeg4_handle_slices(s);
-
- if (!s->mb_intra) {
- /* compute cbp */
- cbp = 0;
- for (i = 0; i < 6; i++) {
- if (s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
- }
-
- put_bits(&s->pb,
- wmv2_inter_table[w->cbp_table_index][cbp + 64][1],
- wmv2_inter_table[w->cbp_table_index][cbp + 64][0]);
-
- /* motion vector */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
- ff_msmpeg4_encode_motion(s, motion_x - pred_x,
- motion_y - pred_y);
- } else {
- /* compute cbp */
- cbp = 0;
- coded_cbp = 0;
- for (i = 0; i < 6; i++) {
- int val, pred;
- val = (s->block_last_index[i] >= 1);
- cbp |= val << (5 - i);
- if (i < 4) {
- /* predict value for close blocks only for luma */
- pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block);
- *coded_block = val;
- val = val ^ pred;
- }
- coded_cbp |= val << (5 - i);
- }
-#if 0
- if (coded_cbp)
- printf("cbp=%x %x\n", cbp, coded_cbp);
-#endif
-
- if (s->pict_type == I_TYPE) {
- put_bits(&s->pb,
- ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]);
- } else {
- put_bits(&s->pb,
- wmv2_inter_table[w->cbp_table_index][cbp][1],
- wmv2_inter_table[w->cbp_table_index][cbp][0]);
- }
- put_bits(&s->pb, 1, 0); /* no AC prediction yet */
- if(s->inter_intra_pred){
- s->h263_aic_dir=0;
- put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]);
- }
- }
-
- for (i = 0; i < 6; i++) {
- ff_msmpeg4_encode_block(s, block[i], i);
- }
-}
-
-AVCodec wmv2_encoder = {
- "wmv2",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV2,
- sizeof(Wmv2Context),
- wmv2_encode_init,
- MPV_encode_picture,
- MPV_encode_end,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-04 01:17:58 +0000