making act segmenter

1 files changed, 0 insertions, 288 deletions

diff --git a/ffmpeg1/libavcodec/flashsvenc.c b/ffmpeg1/libavcodec/flashsvenc.c
deleted file mode 100644
index e6b181f..0000000
--- a/ffmpeg1/libavcodec/flashsvenc.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * Flash Screen Video encoder
- * Copyright (C) 2004 Alex Beregszaszi
- * Copyright (C) 2006 Benjamin Larsson
- *
- * 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
- */
-
-/* Encoding development sponsored by http://fh-campuswien.ac.at */
-
-/**
- * @file
- * Flash Screen Video encoder
- * @author Alex Beregszaszi
- * @author Benjamin Larsson
- *
- * A description of the bitstream format for Flash Screen Video version 1/2
- * is part of the SWF File Format Specification (version 10), which can be
- * downloaded from http://www.adobe.com/devnet/swf.html.
- */
-
-/*
- * Encoding ideas: A basic encoder would just use a fixed block size.
- * Block sizes can be multiples of 16, from 16 to 256. The blocks don't
- * have to be quadratic. A brute force search with a set of different
- * block sizes should give a better result than to just use a fixed size.
- *
- * TODO:
- * Don't reencode the frame in brute force mode if the frame is a dupe.
- * Speed up. Make the difference check faster.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <zlib.h>
-
-#include "avcodec.h"
-#include "internal.h"
-#include "put_bits.h"
-#include "bytestream.h"
-
-
-typedef struct FlashSVContext {
-    AVCodecContext *avctx;
-    uint8_t        *previous_frame;
-    AVFrame         frame;
-    int             image_width, image_height;
-    int             block_width, block_height;
-    uint8_t        *tmpblock;
-    uint8_t        *encbuffer;
-    int             block_size;
-    z_stream        zstream;
-    int             last_key_frame;
-} FlashSVContext;
-
-static int copy_region_enc(uint8_t *sptr, uint8_t *dptr, int dx, int dy,
-                           int h, int w, int stride, uint8_t *pfptr)
-{
-    int i, j;
-    uint8_t *nsptr;
-    uint8_t *npfptr;
-    int diff = 0;
-
-    for (i = dx + h; i > dx; i--) {
-        nsptr  = sptr  + i * stride + dy * 3;
-        npfptr = pfptr + i * stride + dy * 3;
-        for (j = 0; j < w * 3; j++) {
-            diff    |= npfptr[j] ^ nsptr[j];
-            dptr[j]  = nsptr[j];
-        }
-        dptr += w * 3;
-    }
-    if (diff)
-        return 1;
-    return 0;
-}
-
-static av_cold int flashsv_encode_init(AVCodecContext *avctx)
-{
-    FlashSVContext *s = avctx->priv_data;
-
-    s->avctx = avctx;
-
-    if (avctx->width > 4095 || avctx->height > 4095) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Input dimensions too large, input must be max 4096x4096 !\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    // Needed if zlib unused or init aborted before deflateInit
-    memset(&s->zstream, 0, sizeof(z_stream));
-
-    s->last_key_frame = 0;
-
-    s->image_width  = avctx->width;
-    s->image_height = avctx->height;
-
-    s->tmpblock  = av_mallocz(3 * 256 * 256);
-    s->encbuffer = av_mallocz(s->image_width * s->image_height * 3);
-
-    if (!s->tmpblock || !s->encbuffer) {
-        av_log(avctx, AV_LOG_ERROR, "Memory allocation failed.\n");
-        return AVERROR(ENOMEM);
-    }
-
-    return 0;
-}
-
-
-static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf,
-                            int buf_size, int block_width, int block_height,
-                            uint8_t *previous_frame, int *I_frame)
-{
-
-    PutBitContext pb;
-    int h_blocks, v_blocks, h_part, v_part, i, j;
-    int buf_pos, res;
-    int pred_blocks = 0;
-
-    init_put_bits(&pb, buf, buf_size * 8);
-
-    put_bits(&pb,  4, block_width / 16 - 1);
-    put_bits(&pb, 12, s->image_width);
-    put_bits(&pb,  4, block_height / 16 - 1);
-    put_bits(&pb, 12, s->image_height);
-    flush_put_bits(&pb);
-    buf_pos = 4;
-
-    h_blocks = s->image_width  / block_width;
-    h_part   = s->image_width  % block_width;
-    v_blocks = s->image_height / block_height;
-    v_part   = s->image_height % block_height;
-
-    /* loop over all block columns */
-    for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) {
-
-        int y_pos = j * block_height; // vertical position in frame
-        int cur_blk_height = (j < v_blocks) ? block_height : v_part;
-
-        /* loop over all block rows */
-        for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
-            int x_pos = i * block_width; // horizontal position in frame
-            int cur_blk_width = (i < h_blocks) ? block_width : h_part;
-            int ret = Z_OK;
-            uint8_t *ptr = buf + buf_pos;
-
-            /* copy the block to the temp buffer before compression
-             * (if it differs from the previous frame's block) */
-            res = copy_region_enc(p->data[0], s->tmpblock,
-                                  s->image_height - (y_pos + cur_blk_height + 1),
-                                  x_pos, cur_blk_height, cur_blk_width,
-                                  p->linesize[0], previous_frame);
-
-            if (res || *I_frame) {
-                unsigned long zsize = 3 * block_width * block_height;
-                ret = compress2(ptr + 2, &zsize, s->tmpblock,
-                                3 * cur_blk_width * cur_blk_height, 9);
-
-                //ret = deflateReset(&s->zstream);
-                if (ret != Z_OK)
-                    av_log(s->avctx, AV_LOG_ERROR,
-                           "error while compressing block %dx%d\n", i, j);
-
-                bytestream_put_be16(&ptr, zsize);
-                buf_pos += zsize + 2;
-                av_dlog(s->avctx, "buf_pos = %d\n", buf_pos);
-            } else {
-                pred_blocks++;
-                bytestream_put_be16(&ptr, 0);
-                buf_pos += 2;
-            }
-        }
-    }
-
-    if (pred_blocks)
-        *I_frame = 0;
-    else
-        *I_frame = 1;
-
-    return buf_pos;
-}
-
-
-static int flashsv_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-                                const AVFrame *pict, int *got_packet)
-{
-    FlashSVContext * const s = avctx->priv_data;
-    AVFrame * const p = &s->frame;
-    uint8_t *pfptr;
-    int res;
-    int I_frame = 0;
-    int opt_w = 4, opt_h = 4;
-
-    *p = *pict;
-
-    /* First frame needs to be a keyframe */
-    if (avctx->frame_number == 0) {
-        s->previous_frame = av_mallocz(FFABS(p->linesize[0]) * s->image_height);
-        if (!s->previous_frame) {
-            av_log(avctx, AV_LOG_ERROR, "Memory allocation failed.\n");
-            return AVERROR(ENOMEM);
-        }
-        I_frame = 1;
-    }
-
-    if (p->linesize[0] < 0)
-        pfptr = s->previous_frame - (s->image_height - 1) * p->linesize[0];
-    else
-        pfptr = s->previous_frame;
-
-    /* Check the placement of keyframes */
-    if (avctx->gop_size > 0 &&
-        avctx->frame_number >= s->last_key_frame + avctx->gop_size) {
-        I_frame = 1;
-    }
-
-    if ((res = ff_alloc_packet2(avctx, pkt, s->image_width * s->image_height * 3)) < 0)
-        return res;
-
-    pkt->size = encode_bitstream(s, p, pkt->data, pkt->size, opt_w * 16, opt_h * 16,
-                                 pfptr, &I_frame);
-
-    //save the current frame
-    if (p->linesize[0] > 0)
-        memcpy(s->previous_frame, p->data[0], s->image_height * p->linesize[0]);
-    else
-        memcpy(s->previous_frame,
-               p->data[0] + p->linesize[0] * (s->image_height - 1),
-               s->image_height * FFABS(p->linesize[0]));
-
-    //mark the frame type so the muxer can mux it correctly
-    if (I_frame) {
-        p->pict_type      = AV_PICTURE_TYPE_I;
-        p->key_frame      = 1;
-        s->last_key_frame = avctx->frame_number;
-        av_dlog(avctx, "Inserting keyframe at frame %d\n", avctx->frame_number);
-    } else {
-        p->pict_type = AV_PICTURE_TYPE_P;
-        p->key_frame = 0;
-    }
-
-    avctx->coded_frame = p;
-
-    if (p->key_frame)
-        pkt->flags |= AV_PKT_FLAG_KEY;
-    *got_packet = 1;
-
-    return 0;
-}
-
-static av_cold int flashsv_encode_end(AVCodecContext *avctx)
-{
-    FlashSVContext *s = avctx->priv_data;
-
-    deflateEnd(&s->zstream);
-
-    av_free(s->encbuffer);
-    av_free(s->previous_frame);
-    av_free(s->tmpblock);
-
-    return 0;
-}
-
-AVCodec ff_flashsv_encoder = {
-    .name           = "flashsv",
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_FLASHSV,
-    .priv_data_size = sizeof(FlashSVContext),
-    .init           = flashsv_encode_init,
-    .encode2        = flashsv_encode_frame,
-    .close          = flashsv_encode_end,
-    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
-    .long_name      = NULL_IF_CONFIG_SMALL("Flash Screen Video"),
-};