X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Flcldec.c;h=dffc20a81194848357bd7417472da06a5077f394;hb=cbebc3251bc2544b469e0dcb176bc04779d8866c;hp=d4fe65ccebb4d5bfc9abc4c5150e6cdf1e400e58;hpb=4a49ab77c6bb2348992e1e70b14f2d1efaf7ddbb;p=ffmpeg diff --git a/libavcodec/lcldec.c b/libavcodec/lcldec.c index d4fe65ccebb..dffc20a8119 100644 --- a/libavcodec/lcldec.c +++ b/libavcodec/lcldec.c @@ -2,25 +2,25 @@ * LCL (LossLess Codec Library) Codec * Copyright (c) 2002-2004 Roberto Togni * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file libavcodec/lcldec.c + * @file * LCL (LossLess Codec Library) Video Codec * Decoder for MSZH and ZLIB codecs * Experimental encoder for ZLIB RGB24 @@ -35,27 +35,22 @@ * http://www.pcisys.net/~melanson/codecs * * Supports: BGR24 (RGB 24bpp) - * */ #include #include +#include "libavutil/mem.h" #include "avcodec.h" #include "bytestream.h" +#include "internal.h" #include "lcl.h" -#include "libavutil/lzo.h" #if CONFIG_ZLIB_DECODER #include #endif -/* - * Decoder context - */ typedef struct LclDecContext { - AVFrame pic; - // Image type int imgtype; // Compression type @@ -73,8 +68,8 @@ typedef struct 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 + * @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) { @@ -117,21 +112,21 @@ static unsigned int mszh_decomp(const unsigned char * srcptr, int srclen, unsign } +#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 + * @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 */ -#if CONFIG_ZLIB_DECODER 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 -1; + return AVERROR_UNKNOWN; } c->zstream.next_in = src; c->zstream.avail_in = src_len; @@ -140,117 +135,132 @@ static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, i 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 -1; + 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 -1; + return AVERROR_UNKNOWN; } return c->zstream.total_out; } #endif -/* - * - * Decode a frame - * - */ -static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) +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; + unsigned char *encoded, *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; + int uqvq, ret; unsigned int mthread_inlen, mthread_outlen; unsigned int len = buf_size; - if(c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); - - c->pic.reference = 0; - c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; - if(avctx->get_buffer(avctx, &c->pic) < 0){ + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; + return ret; } - outptr = c->pic.data[0]; // Output image pointer + outptr = frame->data[0]; // Output image pointer /* Decompress frame */ switch (avctx->codec_id) { - case CODEC_ID_MSZH: + case AV_CODEC_ID_MSZH: switch (c->compression) { case COMP_MSZH: if (c->flags & FLAG_MULTITHREAD) { - mthread_inlen = AV_RL32(encoded); + mthread_inlen = AV_RL32(buf); mthread_inlen = FFMIN(mthread_inlen, len - 8); - mthread_outlen = AV_RL32(encoded+4); + mthread_outlen = AV_RL32(buf + 4); mthread_outlen = FFMIN(mthread_outlen, c->decomp_size); - mszh_dlen = mszh_decomp(encoded + 8, mthread_inlen, c->decomp_buf, c->decomp_size); + mszh_dlen = mszh_decomp(buf + 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 -1; + return AVERROR_INVALIDDATA; } - mszh_dlen = mszh_decomp(encoded + 8 + mthread_inlen, len - 8 - mthread_inlen, + mszh_dlen = mszh_decomp(buf + 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 -1; + return AVERROR_INVALIDDATA; } encoded = c->decomp_buf; len = c->decomp_size; } else { - mszh_dlen = mszh_decomp(encoded, len, c->decomp_buf, c->decomp_size); + mszh_dlen = mszh_decomp(buf, 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 -1; + return AVERROR_INVALIDDATA; } encoded = c->decomp_buf; len = mszh_dlen; } break; - case COMP_MSZH_NOCOMP: + 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 -1; + return AVERROR_INVALIDDATA; } break; #if CONFIG_ZLIB_DECODER - case CODEC_ID_ZLIB: + 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) - break; - if (c->flags & FLAG_MULTITHREAD) { - int ret; - mthread_inlen = AV_RL32(encoded); + len == width * height * 3) { + if (c->flags & FLAG_PNGFILTER) { + memcpy(c->decomp_buf, buf, len); + encoded = c->decomp_buf; + } else { + break; + } + } else if (c->flags & FLAG_MULTITHREAD) { + mthread_inlen = AV_RL32(buf); mthread_inlen = FFMIN(mthread_inlen, len - 8); - mthread_outlen = AV_RL32(encoded+4); + mthread_outlen = AV_RL32(buf + 4); mthread_outlen = FFMIN(mthread_outlen, c->decomp_size); - ret = zlib_decomp(avctx, encoded + 8, mthread_inlen, 0, mthread_outlen); + ret = zlib_decomp(avctx, buf + 8, mthread_inlen, 0, mthread_outlen); if (ret < 0) return ret; - ret = zlib_decomp(avctx, encoded + 8 + mthread_inlen, len - 8 - mthread_inlen, + ret = zlib_decomp(avctx, buf + 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); + int ret = zlib_decomp(avctx, buf, len, 0, c->decomp_size); if (ret < 0) return ret; } encoded = c->decomp_buf; @@ -259,12 +269,12 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac #endif default: av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n"); - return -1; + return AVERROR_INVALIDDATA; } /* Apply PNG filter */ - if (avctx->codec_id == CODEC_ID_ZLIB && (c->flags & FLAG_PNGFILTER)) { + if (avctx->codec_id == AV_CODEC_ID_ZLIB && (c->flags & FLAG_PNGFILTER)) { switch (c->imgtype) { case IMGTYPE_YUV111: case IMGTYPE_RGB24: @@ -343,14 +353,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac break; default: av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n"); - return -1; + return AVERROR_INVALIDDATA; } } /* Convert colorspace */ - y_out = c->pic.data[0] + (height - 1) * c->pic.linesize[0]; - u_out = c->pic.data[1] + (height - 1) * c->pic.linesize[1]; - v_out = c->pic.data[2] + (height - 1) * c->pic.linesize[2]; + 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++) { @@ -359,9 +369,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac u_out[col] = *encoded++ + 128; v_out[col] = *encoded++ + 128; } - y_out -= c->pic.linesize[0]; - u_out -= c->pic.linesize[1]; - v_out -= c->pic.linesize[2]; + y_out -= frame->linesize[0]; + u_out -= frame->linesize[1]; + v_out -= frame->linesize[2]; } break; case IMGTYPE_YUV422: @@ -374,14 +384,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac v_out[ col >> 1 ] = *encoded++ + 128; v_out[(col >> 1) + 1] = *encoded++ + 128; } - y_out -= c->pic.linesize[0]; - u_out -= c->pic.linesize[1]; - v_out -= c->pic.linesize[2]; + 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 * c->pic.linesize[0]; + pixel_ptr = row * frame->linesize[0]; memcpy(outptr + pixel_ptr, encoded, 3 * width); encoded += 3 * width; } @@ -394,9 +404,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac u_out[col >> 2] = *encoded++ + 128; v_out[col >> 2] = *encoded++ + 128; } - y_out -= c->pic.linesize[0]; - u_out -= c->pic.linesize[1]; - v_out -= c->pic.linesize[2]; + y_out -= frame->linesize[0]; + u_out -= frame->linesize[1]; + v_out -= frame->linesize[2]; } break; case IMGTYPE_YUV211: @@ -407,60 +417,55 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac u_out[col >> 1] = *encoded++ + 128; v_out[col >> 1] = *encoded++ + 128; } - y_out -= c->pic.linesize[0]; - u_out -= c->pic.linesize[1]; - v_out -= c->pic.linesize[2]; + y_out -= frame->linesize[0]; + u_out -= frame->linesize[1]; + v_out -= frame->linesize[2]; } break; case IMGTYPE_YUV420: - u_out = c->pic.data[1] + ((height >> 1) - 1) * c->pic.linesize[1]; - v_out = c->pic.data[2] + ((height >> 1) - 1) * c->pic.linesize[2]; + 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 - c->pic.linesize[0], 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 -= c->pic.linesize[0] << 1; - u_out -= c->pic.linesize[1]; - v_out -= c->pic.linesize[2]; + 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 -1; + return AVERROR_INVALIDDATA; } - *data_size = sizeof(AVFrame); - *(AVFrame*)data = c->pic; + *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) + AV_LZO_OUTPUT_PADDING; + unsigned int max_basesize = FFALIGN(avctx->width, 4) * + FFALIGN(avctx->height, 4); unsigned int max_decomp_size; if (avctx->extradata_size < 8) { av_log(avctx, AV_LOG_ERROR, "Extradata size too small.\n"); - return 1; + return AVERROR_INVALIDDATA; } /* Check codec type */ - if ((avctx->codec_id == CODEC_ID_MSZH && avctx->extradata[7] != CODEC_MSZH) || - (avctx->codec_id == CODEC_ID_ZLIB && avctx->extradata[7] != CODEC_ZLIB)) { + 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"); } @@ -469,48 +474,48 @@ static av_cold int decode_init(AVCodecContext *avctx) case IMGTYPE_YUV111: c->decomp_size = basesize * 3; max_decomp_size = max_basesize * 3; - avctx->pix_fmt = PIX_FMT_YUV444P; + 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 = PIX_FMT_YUV422P; + avctx->pix_fmt = AV_PIX_FMT_YUV422P; av_log(avctx, AV_LOG_DEBUG, "Image type is YUV 4:2:2.\n"); break; case IMGTYPE_RGB24: c->decomp_size = basesize * 3; max_decomp_size = max_basesize * 3; - avctx->pix_fmt = PIX_FMT_BGR24; + 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 = PIX_FMT_YUV411P; + 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 = PIX_FMT_YUV422P; + 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 = PIX_FMT_YUV420P; + 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 1; + return AVERROR_INVALIDDATA; } /* Detect compression method */ c->compression = (int8_t)avctx->extradata[5]; switch (avctx->codec_id) { - case CODEC_ID_MSZH: + case AV_CODEC_ID_MSZH: switch (c->compression) { case COMP_MSZH: av_log(avctx, AV_LOG_DEBUG, "Compression enabled.\n"); @@ -521,11 +526,11 @@ static av_cold int decode_init(AVCodecContext *avctx) break; default: av_log(avctx, AV_LOG_ERROR, "Unsupported compression format for MSZH (%d).\n", c->compression); - return 1; + return AVERROR_INVALIDDATA; } break; #if CONFIG_ZLIB_DECODER - case CODEC_ID_ZLIB: + case AV_CODEC_ID_ZLIB: switch (c->compression) { case COMP_ZLIB_HISPEED: av_log(avctx, AV_LOG_DEBUG, "High speed compression.\n"); @@ -539,7 +544,7 @@ static av_cold int decode_init(AVCodecContext *avctx) 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 1; + return AVERROR_INVALIDDATA; } av_log(avctx, AV_LOG_DEBUG, "Compression level for ZLIB: (%d).\n", c->compression); } @@ -547,14 +552,14 @@ static av_cold int decode_init(AVCodecContext *avctx) #endif default: av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in compression switch.\n"); - return 1; + return AVERROR_INVALIDDATA; } /* Allocate decompression buffer */ if (c->decomp_size) { - if ((c->decomp_buf = av_malloc(max_decomp_size)) == NULL) { + if (!(c->decomp_buf = av_malloc(max_decomp_size))) { av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n"); - return 1; + return AVERROR(ENOMEM); } } @@ -564,14 +569,14 @@ static av_cold int decode_init(AVCodecContext *avctx) 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 == CODEC_ID_ZLIB && (c->flags & FLAG_PNGFILTER)) + 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 == CODEC_ID_ZLIB) { + if (avctx->codec_id == AV_CODEC_ID_ZLIB) { int zret; c->zstream.zalloc = Z_NULL; c->zstream.zfree = Z_NULL; @@ -580,7 +585,7 @@ static av_cold int decode_init(AVCodecContext *avctx) if (zret != Z_OK) { av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret); av_freep(&c->decomp_buf); - return 1; + return AVERROR_UNKNOWN; } } #endif @@ -588,20 +593,13 @@ static av_cold int decode_init(AVCodecContext *avctx) 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 (c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); #if CONFIG_ZLIB_DECODER - if (avctx->codec_id == CODEC_ID_ZLIB) + if (avctx->codec_id == AV_CODEC_ID_ZLIB) inflateEnd(&c->zstream); #endif @@ -609,31 +607,31 @@ static av_cold int decode_end(AVCodecContext *avctx) } #if CONFIG_MSZH_DECODER -AVCodec mszh_decoder = { - "mszh", - CODEC_TYPE_VIDEO, - CODEC_ID_MSZH, - sizeof(LclDecContext), - decode_init, - NULL, - decode_end, - decode_frame, - CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) MSZH"), +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 = AV_CODEC_CAP_DR1, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, }; #endif #if CONFIG_ZLIB_DECODER -AVCodec zlib_decoder = { - "zlib", - CODEC_TYPE_VIDEO, - CODEC_ID_ZLIB, - sizeof(LclDecContext), - decode_init, - NULL, - decode_end, - decode_frame, - CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) ZLIB"), +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 = AV_CODEC_CAP_DR1, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, }; #endif