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Add lowres support to the libopenjpeg wrapper.

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Fixes issue 1097.

Originally committed as revision 18955 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jai Menon 2009-05-26 17:04:28 +00:00
parent d95545166c
commit cd840656c2
1 changed files with 3 additions and 2 deletions
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5
libavcodec/libopenjpeg.c
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@ -89,6 +89,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
} }
opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL); opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL);
ctx->dec_params.cp_reduce = avctx->lowres;
// Tie decoder with decoding parameters // Tie decoder with decoding parameters
opj_setup_decoder(dec, &ctx->dec_params); opj_setup_decoder(dec, &ctx->dec_params);
stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size); stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
@ -106,8 +107,8 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
opj_destroy_decompress(dec); opj_destroy_decompress(dec);
return -1; return -1;
} }
width = image->comps[0].w; width = image->comps[0].w << avctx->lowres;
height = image->comps[0].h; height = image->comps[0].h << avctx->lowres;
if(avcodec_check_dimensions(avctx, width, height) < 0) { if(avcodec_check_dimensions(avctx, width, height) < 0) {
av_log(avctx, AV_LOG_ERROR, "%dx%d dimension invalid.\n", width, height); av_log(avctx, AV_LOG_ERROR, "%dx%d dimension invalid.\n", width, height);
goto done; goto done;