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/lcldec.c | 677 --------------------------------------------- 1 file changed, 677 deletions(-) delete mode 100644 ffmpeg/libavcodec/lcldec.c (limited to 'ffmpeg/libavcodec/lcldec.c') diff --git a/ffmpeg/libavcodec/lcldec.c b/ffmpeg/libavcodec/lcldec.c deleted file mode 100644 index 57519ea..0000000 --- a/ffmpeg/libavcodec/lcldec.c +++ /dev/null @@ -1,677 +0,0 @@ -/* - * LCL (LossLess Codec Library) Codec - * Copyright (c) 2002-2004 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 - * LCL (LossLess Codec Library) Video Codec - * Decoder for MSZH and ZLIB codecs - * Experimental encoder for ZLIB RGB24 - * - * Fourcc: MSZH, ZLIB - * - * Original Win32 dll: - * Ver2.23 By Kenji Oshima 2000.09.20 - * avimszh.dll, avizlib.dll - * - * A description of the decoding algorithm can be found here: - * http://www.pcisys.net/~melanson/codecs - * - * Supports: BGR24 (RGB 24bpp) - * - */ - -#include -#include - -#include "libavutil/mem.h" -#include "libavutil/pixdesc.h" -#include "avcodec.h" -#include "bytestream.h" -#include "internal.h" -#include "lcl.h" - -#if CONFIG_ZLIB_DECODER -#include -#endif - -/* - * Decoder context - */ -typedef struct LclDecContext { - // Image type - int imgtype; - // Compression type - int compression; - // Flags - int flags; - // Decompressed data size - unsigned int decomp_size; - // Decompression buffer - unsigned char* decomp_buf; -#if CONFIG_ZLIB_DECODER - z_stream zstream; -#endif -} LclDecContext; - - -/** - * @param srcptr compressed source buffer, must be padded with at least 5 extra bytes - * @param destptr must be padded sufficiently for av_memcpy_backptr - */ -static unsigned int mszh_decomp(const unsigned char * srcptr, int srclen, unsigned char * destptr, unsigned int destsize) -{ - unsigned char *destptr_bak = destptr; - unsigned char *destptr_end = destptr + destsize; - const unsigned char *srcptr_end = srcptr + srclen; - unsigned mask = *srcptr++; - unsigned maskbit = 0x80; - - while (srcptr < srcptr_end && destptr < destptr_end) { - if (!(mask & maskbit)) { - memcpy(destptr, srcptr, 4); - destptr += 4; - srcptr += 4; - } else { - unsigned ofs = bytestream_get_le16(&srcptr); - unsigned cnt = (ofs >> 11) + 1; - ofs &= 0x7ff; - ofs = FFMIN(ofs, destptr - destptr_bak); - cnt *= 4; - cnt = FFMIN(cnt, destptr_end - destptr); - if (ofs) { - av_memcpy_backptr(destptr, ofs, cnt); - } else { - // Not known what the correct behaviour is, but - // this at least avoids uninitialized data. - memset(destptr, 0, cnt); - } - destptr += cnt; - } - maskbit >>= 1; - if (!maskbit) { - mask = *srcptr++; - while (!mask) { - if (destptr_end - destptr < 32 || srcptr_end - srcptr < 32) break; - memcpy(destptr, srcptr, 32); - destptr += 32; - srcptr += 32; - mask = *srcptr++; - } - maskbit = 0x80; - } - } - - return destptr - destptr_bak; -} - - -#if CONFIG_ZLIB_DECODER -/** - * @brief decompress a zlib-compressed data block into decomp_buf - * @param src compressed input buffer - * @param src_len data length in input buffer - * @param offset offset in decomp_buf - * @param expected expected decompressed length - */ -static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, int offset, int expected) -{ - LclDecContext *c = avctx->priv_data; - int zret = inflateReset(&c->zstream); - if (zret != Z_OK) { - av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret); - return AVERROR_UNKNOWN; - } - c->zstream.next_in = (uint8_t *)src; - c->zstream.avail_in = src_len; - c->zstream.next_out = c->decomp_buf + offset; - c->zstream.avail_out = c->decomp_size - offset; - zret = inflate(&c->zstream, Z_FINISH); - if (zret != Z_OK && zret != Z_STREAM_END) { - av_log(avctx, AV_LOG_ERROR, "Inflate error: %d\n", zret); - return AVERROR_UNKNOWN; - } - if (expected != (unsigned int)c->zstream.total_out) { - av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n", - expected, c->zstream.total_out); - return AVERROR_UNKNOWN; - } - return c->zstream.total_out; -} -#endif - - -/* - * - * Decode a frame - * - */ -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; - LclDecContext * const c = avctx->priv_data; - unsigned char *encoded = (unsigned char *)buf; - unsigned int pixel_ptr; - int row, col; - unsigned char *outptr; - uint8_t *y_out, *u_out, *v_out; - unsigned int width = avctx->width; // Real image width - unsigned int height = avctx->height; // Real image height - unsigned int mszh_dlen; - unsigned char yq, y1q, uq, vq; - int uqvq, ret; - unsigned int mthread_inlen, mthread_outlen; - unsigned int len = buf_size; - - if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) - return ret; - - outptr = frame->data[0]; // Output image pointer - - /* Decompress frame */ - switch (avctx->codec_id) { - case AV_CODEC_ID_MSZH: - switch (c->compression) { - case COMP_MSZH: - if (c->imgtype == IMGTYPE_RGB24 && len == width * height * 3) { - ; - } else if (c->flags & FLAG_MULTITHREAD) { - mthread_inlen = AV_RL32(encoded); - if (len < 8) { - av_log(avctx, AV_LOG_ERROR, "len %d is too small\n", len); - return AVERROR_INVALIDDATA; - } - mthread_inlen = FFMIN(mthread_inlen, len - 8); - mthread_outlen = AV_RL32(encoded+4); - mthread_outlen = FFMIN(mthread_outlen, c->decomp_size); - mszh_dlen = mszh_decomp(encoded + 8, mthread_inlen, c->decomp_buf, c->decomp_size); - if (mthread_outlen != mszh_dlen) { - av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n", - mthread_outlen, mszh_dlen); - return AVERROR_INVALIDDATA; - } - mszh_dlen = mszh_decomp(encoded + 8 + mthread_inlen, len - 8 - mthread_inlen, - c->decomp_buf + mthread_outlen, c->decomp_size - mthread_outlen); - if (mthread_outlen != mszh_dlen) { - av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n", - mthread_outlen, mszh_dlen); - return AVERROR_INVALIDDATA; - } - encoded = c->decomp_buf; - len = c->decomp_size; - } else { - mszh_dlen = mszh_decomp(encoded, len, c->decomp_buf, c->decomp_size); - if (c->decomp_size != mszh_dlen) { - av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n", - c->decomp_size, mszh_dlen); - return AVERROR_INVALIDDATA; - } - encoded = c->decomp_buf; - len = mszh_dlen; - } - break; - case COMP_MSZH_NOCOMP: { - int bppx2; - switch (c->imgtype) { - case IMGTYPE_YUV111: - case IMGTYPE_RGB24: - bppx2 = 6; - break; - case IMGTYPE_YUV422: - case IMGTYPE_YUV211: - bppx2 = 4; - break; - case IMGTYPE_YUV411: - case IMGTYPE_YUV420: - bppx2 = 3; - break; - default: - bppx2 = 0; // will error out below - break; - } - if (len < ((width * height * bppx2) >> 1)) - return AVERROR_INVALIDDATA; - break; - } - default: - av_log(avctx, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n"); - return AVERROR_INVALIDDATA; - } - break; -#if CONFIG_ZLIB_DECODER - case AV_CODEC_ID_ZLIB: - /* Using the original dll with normal compression (-1) and RGB format - * gives a file with ZLIB fourcc, but frame is really uncompressed. - * To be sure that's true check also frame size */ - if (c->compression == COMP_ZLIB_NORMAL && c->imgtype == IMGTYPE_RGB24 && - len == width * height * 3) { - if (c->flags & FLAG_PNGFILTER) { - memcpy(c->decomp_buf, encoded, len); - encoded = c->decomp_buf; - } else { - break; - } - } else if (c->flags & FLAG_MULTITHREAD) { - mthread_inlen = AV_RL32(encoded); - mthread_inlen = FFMIN(mthread_inlen, len - 8); - mthread_outlen = AV_RL32(encoded+4); - mthread_outlen = FFMIN(mthread_outlen, c->decomp_size); - ret = zlib_decomp(avctx, encoded + 8, mthread_inlen, 0, mthread_outlen); - if (ret < 0) return ret; - ret = zlib_decomp(avctx, encoded + 8 + mthread_inlen, len - 8 - mthread_inlen, - mthread_outlen, mthread_outlen); - if (ret < 0) return ret; - } else { - int ret = zlib_decomp(avctx, encoded, len, 0, c->decomp_size); - if (ret < 0) return ret; - } - encoded = c->decomp_buf; - len = c->decomp_size; - break; -#endif - default: - av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n"); - return AVERROR_INVALIDDATA; - } - - - /* Apply PNG filter */ - if (avctx->codec_id == AV_CODEC_ID_ZLIB && (c->flags & FLAG_PNGFILTER)) { - switch (c->imgtype) { - case IMGTYPE_YUV111: - case IMGTYPE_RGB24: - for (row = 0; row < height; row++) { - pixel_ptr = row * width * 3; - yq = encoded[pixel_ptr++]; - uqvq = AV_RL16(encoded+pixel_ptr); - pixel_ptr += 2; - for (col = 1; col < width; col++) { - encoded[pixel_ptr] = yq -= encoded[pixel_ptr]; - uqvq -= AV_RL16(encoded+pixel_ptr+1); - AV_WL16(encoded+pixel_ptr+1, uqvq); - pixel_ptr += 3; - } - } - break; - case IMGTYPE_YUV422: - for (row = 0; row < height; row++) { - pixel_ptr = row * width * 2; - yq = uq = vq =0; - for (col = 0; col < width/4; col++) { - encoded[pixel_ptr] = yq -= encoded[pixel_ptr]; - encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1]; - encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2]; - encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3]; - encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4]; - encoded[pixel_ptr+5] = uq -= encoded[pixel_ptr+5]; - encoded[pixel_ptr+6] = vq -= encoded[pixel_ptr+6]; - encoded[pixel_ptr+7] = vq -= encoded[pixel_ptr+7]; - pixel_ptr += 8; - } - } - break; - case IMGTYPE_YUV411: - for (row = 0; row < height; row++) { - pixel_ptr = row * width / 2 * 3; - yq = uq = vq =0; - for (col = 0; col < width/4; col++) { - encoded[pixel_ptr] = yq -= encoded[pixel_ptr]; - encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1]; - encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2]; - encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3]; - encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4]; - encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5]; - pixel_ptr += 6; - } - } - break; - case IMGTYPE_YUV211: - for (row = 0; row < height; row++) { - pixel_ptr = row * width * 2; - yq = uq = vq =0; - for (col = 0; col < width/2; col++) { - encoded[pixel_ptr] = yq -= encoded[pixel_ptr]; - encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1]; - encoded[pixel_ptr+2] = uq -= encoded[pixel_ptr+2]; - encoded[pixel_ptr+3] = vq -= encoded[pixel_ptr+3]; - pixel_ptr += 4; - } - } - break; - case IMGTYPE_YUV420: - for (row = 0; row < height/2; row++) { - pixel_ptr = row * width * 3; - yq = y1q = uq = vq =0; - for (col = 0; col < width/2; col++) { - encoded[pixel_ptr] = yq -= encoded[pixel_ptr]; - encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1]; - encoded[pixel_ptr+2] = y1q -= encoded[pixel_ptr+2]; - encoded[pixel_ptr+3] = y1q -= encoded[pixel_ptr+3]; - encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4]; - encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5]; - pixel_ptr += 6; - } - } - break; - default: - av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n"); - return AVERROR_INVALIDDATA; - } - } - - /* Convert colorspace */ - y_out = frame->data[0] + (height - 1) * frame->linesize[0]; - u_out = frame->data[1] + (height - 1) * frame->linesize[1]; - v_out = frame->data[2] + (height - 1) * frame->linesize[2]; - switch (c->imgtype) { - case IMGTYPE_YUV111: - for (row = 0; row < height; row++) { - for (col = 0; col < width; col++) { - y_out[col] = *encoded++; - u_out[col] = *encoded++ + 128; - v_out[col] = *encoded++ + 128; - } - y_out -= frame->linesize[0]; - u_out -= frame->linesize[1]; - v_out -= frame->linesize[2]; - } - break; - case IMGTYPE_YUV422: - for (row = 0; row < height; row++) { - for (col = 0; col < width - 3; col += 4) { - memcpy(y_out + col, encoded, 4); - encoded += 4; - u_out[ col >> 1 ] = *encoded++ + 128; - u_out[(col >> 1) + 1] = *encoded++ + 128; - v_out[ col >> 1 ] = *encoded++ + 128; - v_out[(col >> 1) + 1] = *encoded++ + 128; - } - y_out -= frame->linesize[0]; - u_out -= frame->linesize[1]; - v_out -= frame->linesize[2]; - } - break; - case IMGTYPE_RGB24: - for (row = height - 1; row >= 0; row--) { - pixel_ptr = row * frame->linesize[0]; - memcpy(outptr + pixel_ptr, encoded, 3 * width); - encoded += 3 * width; - } - break; - case IMGTYPE_YUV411: - for (row = 0; row < height; row++) { - for (col = 0; col < width - 3; col += 4) { - memcpy(y_out + col, encoded, 4); - encoded += 4; - u_out[col >> 2] = *encoded++ + 128; - v_out[col >> 2] = *encoded++ + 128; - } - y_out -= frame->linesize[0]; - u_out -= frame->linesize[1]; - v_out -= frame->linesize[2]; - } - break; - case IMGTYPE_YUV211: - for (row = 0; row < height; row++) { - for (col = 0; col < width - 1; col += 2) { - memcpy(y_out + col, encoded, 2); - encoded += 2; - u_out[col >> 1] = *encoded++ + 128; - v_out[col >> 1] = *encoded++ + 128; - } - y_out -= frame->linesize[0]; - u_out -= frame->linesize[1]; - v_out -= frame->linesize[2]; - } - break; - case IMGTYPE_YUV420: - u_out = frame->data[1] + ((height >> 1) - 1) * frame->linesize[1]; - v_out = frame->data[2] + ((height >> 1) - 1) * frame->linesize[2]; - for (row = 0; row < height - 1; row += 2) { - for (col = 0; col < width - 1; col += 2) { - memcpy(y_out + col, encoded, 2); - encoded += 2; - memcpy(y_out + col - frame->linesize[0], encoded, 2); - encoded += 2; - u_out[col >> 1] = *encoded++ + 128; - v_out[col >> 1] = *encoded++ + 128; - } - y_out -= frame->linesize[0] << 1; - u_out -= frame->linesize[1]; - v_out -= frame->linesize[2]; - } - break; - default: - av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n"); - return AVERROR_INVALIDDATA; - } - - *got_frame = 1; - - /* always report that the buffer was completely consumed */ - return buf_size; -} - -/* - * - * Init lcl decoder - * - */ -static av_cold int decode_init(AVCodecContext *avctx) -{ - LclDecContext * const c = avctx->priv_data; - unsigned int basesize = avctx->width * avctx->height; - unsigned int max_basesize = FFALIGN(avctx->width, 4) * - FFALIGN(avctx->height, 4); - unsigned int max_decomp_size; - int subsample_h, subsample_v; - - if (avctx->extradata_size < 8) { - av_log(avctx, AV_LOG_ERROR, "Extradata size too small.\n"); - return AVERROR_INVALIDDATA; - } - - /* Check codec type */ - if ((avctx->codec_id == AV_CODEC_ID_MSZH && avctx->extradata[7] != CODEC_MSZH) || - (avctx->codec_id == AV_CODEC_ID_ZLIB && avctx->extradata[7] != CODEC_ZLIB)) { - av_log(avctx, AV_LOG_ERROR, "Codec id and codec type mismatch. This should not happen.\n"); - } - - /* Detect image type */ - switch (c->imgtype = avctx->extradata[4]) { - case IMGTYPE_YUV111: - c->decomp_size = basesize * 3; - max_decomp_size = max_basesize * 3; - avctx->pix_fmt = AV_PIX_FMT_YUV444P; - av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 1:1:1.\n"); - break; - case IMGTYPE_YUV422: - c->decomp_size = basesize * 2; - max_decomp_size = max_basesize * 2; - avctx->pix_fmt = AV_PIX_FMT_YUV422P; - av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 4:2:2.\n"); - if (avctx->width % 4) { - avpriv_request_sample(avctx, "Unsupported dimensions\n"); - return AVERROR_INVALIDDATA; - } - break; - case IMGTYPE_RGB24: - c->decomp_size = basesize * 3; - max_decomp_size = max_basesize * 3; - avctx->pix_fmt = AV_PIX_FMT_BGR24; - av_log(avctx, AV_LOG_DEBUG, "Image type is RGB 24.\n"); - break; - case IMGTYPE_YUV411: - c->decomp_size = basesize / 2 * 3; - max_decomp_size = max_basesize / 2 * 3; - avctx->pix_fmt = AV_PIX_FMT_YUV411P; - av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 4:1:1.\n"); - break; - case IMGTYPE_YUV211: - c->decomp_size = basesize * 2; - max_decomp_size = max_basesize * 2; - avctx->pix_fmt = AV_PIX_FMT_YUV422P; - av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 2:1:1.\n"); - break; - case IMGTYPE_YUV420: - c->decomp_size = basesize / 2 * 3; - max_decomp_size = max_basesize / 2 * 3; - avctx->pix_fmt = AV_PIX_FMT_YUV420P; - av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 4:2:0.\n"); - break; - default: - av_log(avctx, AV_LOG_ERROR, "Unsupported image format %d.\n", c->imgtype); - return AVERROR_INVALIDDATA; - } - - av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &subsample_h, &subsample_v); - if (avctx->width % (1<height % (1<compression = (int8_t)avctx->extradata[5]; - switch (avctx->codec_id) { - case AV_CODEC_ID_MSZH: - switch (c->compression) { - case COMP_MSZH: - av_log(avctx, AV_LOG_DEBUG, "Compression enabled.\n"); - break; - case COMP_MSZH_NOCOMP: - c->decomp_size = 0; - av_log(avctx, AV_LOG_DEBUG, "No compression.\n"); - break; - default: - av_log(avctx, AV_LOG_ERROR, "Unsupported compression format for MSZH (%d).\n", c->compression); - return AVERROR_INVALIDDATA; - } - break; -#if CONFIG_ZLIB_DECODER - case AV_CODEC_ID_ZLIB: - switch (c->compression) { - case COMP_ZLIB_HISPEED: - av_log(avctx, AV_LOG_DEBUG, "High speed compression.\n"); - break; - case COMP_ZLIB_HICOMP: - av_log(avctx, AV_LOG_DEBUG, "High compression.\n"); - break; - case COMP_ZLIB_NORMAL: - av_log(avctx, AV_LOG_DEBUG, "Normal compression.\n"); - break; - default: - if (c->compression < Z_NO_COMPRESSION || c->compression > Z_BEST_COMPRESSION) { - av_log(avctx, AV_LOG_ERROR, "Unsupported compression level for ZLIB: (%d).\n", c->compression); - return AVERROR_INVALIDDATA; - } - av_log(avctx, AV_LOG_DEBUG, "Compression level for ZLIB: (%d).\n", c->compression); - } - break; -#endif - default: - av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in compression switch.\n"); - return AVERROR_INVALIDDATA; - } - - /* Allocate decompression buffer */ - if (c->decomp_size) { - if ((c->decomp_buf = av_malloc(max_decomp_size)) == NULL) { - av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n"); - return AVERROR(ENOMEM); - } - } - - /* Detect flags */ - c->flags = avctx->extradata[6]; - if (c->flags & FLAG_MULTITHREAD) - av_log(avctx, AV_LOG_DEBUG, "Multithread encoder flag set.\n"); - if (c->flags & FLAG_NULLFRAME) - av_log(avctx, AV_LOG_DEBUG, "Nullframe insertion flag set.\n"); - if (avctx->codec_id == AV_CODEC_ID_ZLIB && (c->flags & FLAG_PNGFILTER)) - av_log(avctx, AV_LOG_DEBUG, "PNG filter flag set.\n"); - if (c->flags & FLAGMASK_UNUSED) - av_log(avctx, AV_LOG_ERROR, "Unknown flag set (%d).\n", c->flags); - - /* If needed init zlib */ -#if CONFIG_ZLIB_DECODER - if (avctx->codec_id == AV_CODEC_ID_ZLIB) { - int zret; - c->zstream.zalloc = Z_NULL; - c->zstream.zfree = Z_NULL; - c->zstream.opaque = Z_NULL; - zret = inflateInit(&c->zstream); - if (zret != Z_OK) { - av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret); - av_freep(&c->decomp_buf); - return AVERROR_UNKNOWN; - } - } -#endif - - return 0; -} - -/* - * - * Uninit lcl decoder - * - */ -static av_cold int decode_end(AVCodecContext *avctx) -{ - LclDecContext * const c = avctx->priv_data; - - av_freep(&c->decomp_buf); -#if CONFIG_ZLIB_DECODER - if (avctx->codec_id == AV_CODEC_ID_ZLIB) - inflateEnd(&c->zstream); -#endif - - return 0; -} - -#if CONFIG_MSZH_DECODER -AVCodec ff_mszh_decoder = { - .name = "mszh", - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) MSZH"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_MSZH, - .priv_data_size = sizeof(LclDecContext), - .init = decode_init, - .close = decode_end, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1, -}; -#endif - -#if CONFIG_ZLIB_DECODER -AVCodec ff_zlib_decoder = { - .name = "zlib", - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) ZLIB"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_ZLIB, - .priv_data_size = sizeof(LclDecContext), - .init = decode_init, - .close = decode_end, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1, -}; -#endif -- cgit v1.2.3