From 22e28216336da876e1fd17f380ce42eaf1446769 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Mon, 17 Feb 2014 13:36:38 +0000 Subject: chasing indexing error --- ffmpeg/libavcodec/012v.c | 159 ----------------------------------------------- 1 file changed, 159 deletions(-) delete mode 100644 ffmpeg/libavcodec/012v.c (limited to 'ffmpeg/libavcodec/012v.c') diff --git a/ffmpeg/libavcodec/012v.c b/ffmpeg/libavcodec/012v.c deleted file mode 100644 index c2b6a35..0000000 --- a/ffmpeg/libavcodec/012v.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * 012v decoder - * - * Copyright (C) 2012 Carl Eugen Hoyos - * - * 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 "internal.h" -#include "libavutil/intreadwrite.h" - -static av_cold int zero12v_decode_init(AVCodecContext *avctx) -{ - avctx->pix_fmt = AV_PIX_FMT_YUV422P16; - avctx->bits_per_raw_sample = 10; - - if (avctx->codec_tag == MKTAG('a', '1', '2', 'v')) - avpriv_request_sample(avctx, "transparency"); - - return 0; -} - -static int zero12v_decode_frame(AVCodecContext *avctx, void *data, - int *got_frame, AVPacket *avpkt) -{ - int line = 0, ret; - const int width = avctx->width; - AVFrame *pic = data; - uint16_t *y, *u, *v; - const uint8_t *line_end, *src = avpkt->data; - int stride = avctx->width * 8 / 3; - - if (width == 1) { - av_log(avctx, AV_LOG_ERROR, "Width 1 not supported.\n"); - return AVERROR_INVALIDDATA; - } - - if ( avctx->codec_tag == MKTAG('0', '1', '2', 'v') - && avpkt->size % avctx->height == 0 - && avpkt->size / avctx->height * 3 >= width * 8) - stride = avpkt->size / avctx->height; - - if (avpkt->size < avctx->height * stride) { - av_log(avctx, AV_LOG_ERROR, "Packet too small: %d instead of %d\n", - avpkt->size, avctx->height * stride); - return AVERROR_INVALIDDATA; - } - - if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) - return ret; - - pic->pict_type = AV_PICTURE_TYPE_I; - pic->key_frame = 1; - - y = (uint16_t *)pic->data[0]; - u = (uint16_t *)pic->data[1]; - v = (uint16_t *)pic->data[2]; - line_end = avpkt->data + stride; - - while (line++ < avctx->height) { - while (1) { - uint32_t t = AV_RL32(src); - src += 4; - *u++ = t << 6 & 0xFFC0; - *y++ = t >> 4 & 0xFFC0; - *v++ = t >> 14 & 0xFFC0; - - if (src >= line_end - 1) { - *y = 0x80; - src++; - line_end += stride; - y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]); - u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]); - v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]); - break; - } - - t = AV_RL32(src); - src += 4; - *y++ = t << 6 & 0xFFC0; - *u++ = t >> 4 & 0xFFC0; - *y++ = t >> 14 & 0xFFC0; - if (src >= line_end - 2) { - if (!(width & 1)) { - *y = 0x80; - src += 2; - } - line_end += stride; - y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]); - u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]); - v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]); - break; - } - - t = AV_RL32(src); - src += 4; - *v++ = t << 6 & 0xFFC0; - *y++ = t >> 4 & 0xFFC0; - *u++ = t >> 14 & 0xFFC0; - - if (src >= line_end - 1) { - *y = 0x80; - src++; - line_end += stride; - y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]); - u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]); - v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]); - break; - } - - t = AV_RL32(src); - src += 4; - *y++ = t << 6 & 0xFFC0; - *v++ = t >> 4 & 0xFFC0; - *y++ = t >> 14 & 0xFFC0; - - if (src >= line_end - 2) { - if (width & 1) { - *y = 0x80; - src += 2; - } - line_end += stride; - y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]); - u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]); - v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]); - break; - } - } - } - - *got_frame = 1; - - return avpkt->size; -} - -AVCodec ff_zero12v_decoder = { - .name = "012v", - .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_012V, - .init = zero12v_decode_init, - .decode = zero12v_decode_frame, - .capabilities = CODEC_CAP_DR1, -}; -- cgit v1.2.3