diff options
Diffstat (limited to 'ffmpeg/libavcodec/lcldec.c')
| -rw-r--r-- | ffmpeg/libavcodec/lcldec.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/ffmpeg/libavcodec/lcldec.c b/ffmpeg/libavcodec/lcldec.c index 7948199..57519ea 100644 --- a/ffmpeg/libavcodec/lcldec.c +++ b/ffmpeg/libavcodec/lcldec.c @@ -42,6 +42,7 @@ #include <stdlib.h> #include "libavutil/mem.h" +#include "libavutil/pixdesc.h" #include "avcodec.h" #include "bytestream.h" #include "internal.h" @@ -482,6 +483,7 @@ static av_cold int decode_init(AVCodecContext *avctx) 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"); @@ -507,6 +509,10 @@ static av_cold int decode_init(AVCodecContext *avctx) 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; @@ -537,6 +543,12 @@ static av_cold int decode_init(AVCodecContext *avctx) return AVERROR_INVALIDDATA; } + av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &subsample_h, &subsample_v); + if (avctx->width % (1<<subsample_h) || avctx->height % (1<<subsample_v)) { + avpriv_request_sample(avctx, "Unsupported dimensions\n"); + return AVERROR_INVALIDDATA; + } + /* Detect compression method */ c->compression = (int8_t)avctx->extradata[5]; switch (avctx->codec_id) { @@ -639,6 +651,7 @@ static av_cold int decode_end(AVCodecContext *avctx) #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), @@ -646,13 +659,13 @@ AVCodec ff_mszh_decoder = { .close = decode_end, .decode = decode_frame, .capabilities = CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) MSZH"), }; #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), @@ -660,6 +673,5 @@ AVCodec ff_zlib_decoder = { .close = decode_end, .decode = decode_frame, .capabilities = CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) ZLIB"), }; #endif |