From 741fb4b9e135cfb161a749db88713229038577bb Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:55:35 +0100 Subject: making act segmenter --- ffmpeg1/libavcodec/8bps.c | 190 ---------------------------------------------- 1 file changed, 190 deletions(-) delete mode 100644 ffmpeg1/libavcodec/8bps.c (limited to 'ffmpeg1/libavcodec/8bps.c') diff --git a/ffmpeg1/libavcodec/8bps.c b/ffmpeg1/libavcodec/8bps.c deleted file mode 100644 index a910551..0000000 --- a/ffmpeg1/libavcodec/8bps.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Quicktime Planar RGB (8BPS) Video Decoder - * Copyright (C) 2003 Roberto Togni - * - * 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 - */ - -/** - * @file - * QT 8BPS Video Decoder by Roberto Togni - * For more information about the 8BPS format, visit: - * http://www.pcisys.net/~melanson/codecs/ - * - * Supports: PAL8 (RGB 8bpp, paletted) - * : BGR24 (RGB 24bpp) (can also output it as RGB32) - * : RGB32 (RGB 32bpp, 4th plane is alpha) - * - */ - -#include -#include -#include - -#include "libavutil/internal.h" -#include "libavutil/intreadwrite.h" -#include "avcodec.h" -#include "internal.h" - - -static const enum AVPixelFormat pixfmt_rgb24[] = { - AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE }; - -typedef struct EightBpsContext { - AVCodecContext *avctx; - - unsigned char planes; - unsigned char planemap[4]; - - uint32_t pal[256]; -} EightBpsContext; - -static int decode_frame(AVCodecContext *avctx, void *data, - int *got_frame, AVPacket *avpkt) -{ - AVFrame *frame = data; - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - EightBpsContext * const c = avctx->priv_data; - const unsigned char *encoded = buf; - unsigned char *pixptr, *pixptr_end; - unsigned int height = avctx->height; // Real image height - unsigned int dlen, p, row; - const unsigned char *lp, *dp; - unsigned char count; - unsigned int planes = c->planes; - unsigned char *planemap = c->planemap; - int ret; - - if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) - return ret; - - /* Set data pointer after line lengths */ - dp = encoded + planes * (height << 1); - - for (p = 0; p < planes; p++) { - /* Lines length pointer for this plane */ - lp = encoded + p * (height << 1); - - /* Decode a plane */ - for (row = 0; row < height; row++) { - pixptr = frame->data[0] + row * frame->linesize[0] + planemap[p]; - pixptr_end = pixptr + frame->linesize[0]; - if(lp - encoded + row*2 + 1 >= buf_size) - return -1; - dlen = av_be2ne16(*(const unsigned short *)(lp + row * 2)); - /* Decode a row of this plane */ - while (dlen > 0) { - if (dp + 1 >= buf + buf_size) - return AVERROR_INVALIDDATA; - if ((count = *dp++) <= 127) { - count++; - dlen -= count + 1; - if (pixptr + count * planes > pixptr_end) - break; - if (dp + count > buf + buf_size) - return AVERROR_INVALIDDATA; - while (count--) { - *pixptr = *dp++; - pixptr += planes; - } - } else { - count = 257 - count; - if (pixptr + count * planes > pixptr_end) - break; - while (count--) { - *pixptr = *dp; - pixptr += planes; - } - dp++; - dlen -= 2; - } - } - } - } - - if (avctx->bits_per_coded_sample <= 8) { - const uint8_t *pal = av_packet_get_side_data(avpkt, - AV_PKT_DATA_PALETTE, - NULL); - if (pal) { - frame->palette_has_changed = 1; - memcpy(c->pal, pal, AVPALETTE_SIZE); - } - - memcpy (frame->data[1], c->pal, AVPALETTE_SIZE); - } - - *got_frame = 1; - - /* always report that the buffer was completely consumed */ - return buf_size; -} - -static av_cold int decode_init(AVCodecContext *avctx) -{ - EightBpsContext * const c = avctx->priv_data; - - c->avctx = avctx; - - switch (avctx->bits_per_coded_sample) { - case 8: - avctx->pix_fmt = AV_PIX_FMT_PAL8; - c->planes = 1; - c->planemap[0] = 0; // 1st plane is palette indexes - break; - case 24: - avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24); - c->planes = 3; - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - break; - case 32: - avctx->pix_fmt = AV_PIX_FMT_RGB32; - c->planes = 4; -#if HAVE_BIGENDIAN - c->planemap[0] = 1; // 1st plane is red - c->planemap[1] = 2; // 2nd plane is green - c->planemap[2] = 3; // 3rd plane is blue - c->planemap[3] = 0; // 4th plane is alpha -#else - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - c->planemap[3] = 3; // 4th plane is alpha -#endif - break; - default: - av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", - avctx->bits_per_coded_sample); - return AVERROR_INVALIDDATA; - } - - return 0; -} - -AVCodec ff_eightbps_decoder = { - .name = "8bps", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_8BPS, - .priv_data_size = sizeof(EightBpsContext), - .init = decode_init, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"), -}; -- cgit v1.2.3