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-rw-r--r--libav/h263enc.c229
1 files changed, 0 insertions, 229 deletions
diff --git a/libav/h263enc.c b/libav/h263enc.c
deleted file mode 100644
index 59db1ee512..0000000000
--- a/libav/h263enc.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * H263 backend for ffmpeg encoder
- * Copyright (c) 2000 Gerard Lantau.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <netinet/in.h>
-#include "common.h"
-#include "mpegvideo.h"
-#include "h263data.h"
-
-void h263_picture_header(MpegEncContext *s, int picture_number)
-{
- int format;
-
- align_put_bits(&s->pb);
- put_bits(&s->pb, 22, 0x20);
- put_bits(&s->pb, 8, ((s->picture_number * 30) / s->frame_rate) & 0xff);
-
- put_bits(&s->pb, 1, 1); /* marker */
- put_bits(&s->pb, 1, 0); /* h263 id */
- put_bits(&s->pb, 1, 0); /* split screen off */
- put_bits(&s->pb, 1, 0); /* camera off */
- put_bits(&s->pb, 1, 0); /* freeze picture release off */
-
- if (s->width == 128 && s->height == 96)
- format = 1;
- else if (s->width == 176 && s->height == 144)
- format = 2;
- else if (s->width == 352 && s->height == 288)
- format = 3;
- else if (s->width == 704 && s->height == 576)
- format = 4;
- else if (s->width == 1408 && s->height == 1152)
- format = 5;
- else
- abort();
-
- put_bits(&s->pb, 3, format);
-
- put_bits(&s->pb, 1, (s->pict_type == P_TYPE));
-
- put_bits(&s->pb, 1, 0); /* unrestricted motion vector: off */
-
- put_bits(&s->pb, 1, 0); /* SAC: off */
-
- put_bits(&s->pb, 1, 0); /* advanced prediction mode: off */
-
- put_bits(&s->pb, 1, 0); /* not PB frame */
-
- put_bits(&s->pb, 5, s->qscale);
-
- put_bits(&s->pb, 1, 0); /* Continuous Presence Multipoint mode: off */
-
- put_bits(&s->pb, 1, 0); /* no PEI */
-}
-
-static void h263_encode_block(MpegEncContext *s, DCTELEM *block,
- int n);
-
-void h263_encode_mb(MpegEncContext *s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
-{
- int cbpc, cbpy, i, cbp;
-
- 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);
- }
- if ((cbp | motion_x | motion_y) == 0) {
- /* skip macroblock */
- put_bits(&s->pb, 1, 1);
- return;
- }
-
- put_bits(&s->pb, 1, 0); /* mb coded */
- cbpc = cbp & 3;
- put_bits(&s->pb,
- inter_MCBPC_bits[cbpc],
- inter_MCBPC_code[cbpc]);
- cbpy = cbp >> 2;
- cbpy ^= 0xf;
- put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
-
- /* motion vectors: zero */
- put_bits(&s->pb, 1, 1);
- put_bits(&s->pb, 1, 1);
-
- } else {
- /* compute cbp */
- cbp = 0;
- for(i=0;i<6;i++) {
- if (s->block_last_index[i] >= 1)
- cbp |= 1 << (5 - i);
- }
-
- cbpc = cbp & 3;
- if (s->pict_type == I_TYPE) {
- put_bits(&s->pb,
- intra_MCBPC_bits[cbpc],
- intra_MCBPC_code[cbpc]);
- } else {
- put_bits(&s->pb, 1, 0); /* mb coded */
- put_bits(&s->pb,
- inter_MCBPC_bits[cbpc + 4],
- inter_MCBPC_code[cbpc + 4]);
- }
- cbpy = cbp >> 2;
- put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
- }
-
- /* encode each block */
- for(i=0;i<6;i++) {
- h263_encode_block(s, block[i], i);
- }
-}
-
-static void h263_encode_block(MpegEncContext *s, DCTELEM *block, int n)
-{
- int level, run, last, i, j, last_index, last_non_zero, sign, alevel;
- int code, len;
-
- if (s->mb_intra) {
- /* DC coef */
- level = block[0];
- if (level == 128)
- put_bits(&s->pb, 8, 0xff);
- else
- put_bits(&s->pb, 8, level & 0xff);
- i = 1;
- } else {
- i = 0;
- }
-
- /* AC coefs */
- last_index = s->block_last_index[n];
- last_non_zero = i - 1;
- for(;i<=last_index;i++) {
- j = zigzag_direct[i];
- level = block[j];
- if (level) {
- run = i - last_non_zero - 1;
- last = (i == last_index);
- sign = 0;
- alevel = level;
- if (level < 0) {
- sign = 1;
- alevel = -level;
- }
- len = 0;
- code = 0; /* only to disable warning */
- if (last == 0) {
- if (run < 2 && alevel < 13 ) {
- len = coeff_tab0[run][alevel-1][1];
- code = coeff_tab0[run][alevel-1][0];
- } else if (run >= 2 && run < 27 && alevel < 5) {
- len = coeff_tab1[run-2][alevel-1][1];
- code = coeff_tab1[run-2][alevel-1][0];
- }
- } else {
- if (run < 2 && alevel < 4) {
- len = coeff_tab2[run][alevel-1][1];
- code = coeff_tab2[run][alevel-1][0];
- } else if (run >= 2 && run < 42 && alevel == 1) {
- len = coeff_tab3[run-2][1];
- code = coeff_tab3[run-2][0];
- }
- }
-
- if (len != 0) {
- code = (code << 1) | sign;
- put_bits(&s->pb, len + 1, code);
- } else {
- /* escape */
- put_bits(&s->pb, 7, 3);
- put_bits(&s->pb, 1, last);
- put_bits(&s->pb, 6, run);
- put_bits(&s->pb, 8, level & 0xff);
- }
-
- last_non_zero = i;
- }
- }
-}
-
-/* write RV 1.0 compatible frame header */
-void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
-{
- align_put_bits(&s->pb);
-
- put_bits(&s->pb, 1, 1); /* marker */
-
- put_bits(&s->pb, 1, (s->pict_type == P_TYPE));
-
- put_bits(&s->pb, 1, 0); /* not PB frame */
-
- put_bits(&s->pb, 5, s->qscale);
-
- if (s->pict_type == I_TYPE) {
- /* specific MPEG like DC coding not used */
- }
-
- /* if multiple packets per frame are sent, the position at which
- to display the macro blocks is coded here */
- put_bits(&s->pb, 6, 0); /* mb_x */
- put_bits(&s->pb, 6, 0); /* mb_y */
- put_bits(&s->pb, 12, s->mb_width * s->mb_height);
-
- put_bits(&s->pb, 3, 0); /* ignored */
-}
-
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