From 2f6bb86f85886a7fb36e8a10e4dd8cc3a1849377 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 12 Nov 2014 23:53:08 +0100 Subject: [PATCH] swscale/utils: support bayer input + scaling, and bayer input + any supported output Fixes Ticket4053 Signed-off-by: Michael Niedermayer --- libswscale/utils.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/libswscale/utils.c b/libswscale/utils.c index 5904ef85fe..ab494ed79c 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -1217,6 +1217,31 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter, } } + if (isBayer(srcFormat)) { + if (!unscaled || + (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P)) { + enum AVPixelFormat tmpFormat = AV_PIX_FMT_RGB24; + + ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride, + srcW, srcH, tmpFormat, 64); + if (ret < 0) + return ret; + + c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat, + srcW, srcH, tmpFormat, + flags, srcFilter, NULL, c->param); + if (!c->cascaded_context[0]) + return -1; + + c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat, + dstW, dstH, dstFormat, + flags, NULL, dstFilter, c->param); + if (!c->cascaded_context[1]) + return -1; + return 0; + } + } + #define USE_MMAP (HAVE_MMAP && HAVE_MPROTECT && defined MAP_ANONYMOUS) /* precalculate horizontal scaler filter coefficients */