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[68.41.54.207]) by smtp.gmail.com with ESMTPSA id g99-20020a02856c000000b00362983f80a3sm691203jai.30.2022.10.02.00.58.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Oct 2022 00:58:45 -0700 (PDT) From: Leo Izen To: ffmpeg-devel@ffmpeg.org Date: Sun, 2 Oct 2022 03:58:35 -0400 Message-Id: <20221002075835.415465-3-leo.izen@gmail.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221002075835.415465-1-leo.izen@gmail.com> References: <20221002075835.415465-1-leo.izen@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 2/2] avcodec/libjxl: use RGB32F or RGBA32F for 32-bit float JPEG XL X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Leo Izen Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: Use AV_PIX_FMT_RGB32F or AV_PIX_FMT_RGBA32F for encoding and decoding JPEG XL files when encountered, rather than returning an error and refusing to do anything. Signed-off-by: Leo Izen --- libavcodec/libjxldec.c | 15 +++++++++------ libavcodec/libjxlenc.c | 1 + 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/libavcodec/libjxldec.c b/libavcodec/libjxldec.c index de48bea4b2..92b98388d4 100644 --- a/libavcodec/libjxldec.c +++ b/libavcodec/libjxldec.c @@ -104,9 +104,12 @@ static enum AVPixelFormat libjxl_get_pix_fmt(void *avctx, const JxlBasicInfo *ba return basic_info->alpha_bits ? AV_PIX_FMT_YA8 : AV_PIX_FMT_GRAY8; } if (basic_info->exponent_bits_per_sample || basic_info->bits_per_sample > 16) { - if (basic_info->alpha_bits) - return AV_PIX_FMT_NONE; format->data_type = JXL_TYPE_FLOAT; + if (basic_info->alpha_bits) { + av_log(avctx, AV_LOG_WARNING, "Decoding gray+alpha JXL input as RGBA\n"); + format->num_channels = 4; + return AV_PIX_FMT_RGBAF32; + } return AV_PIX_FMT_GRAYF32; } format->data_type = JXL_TYPE_UINT16; @@ -119,10 +122,10 @@ static enum AVPixelFormat libjxl_get_pix_fmt(void *avctx, const JxlBasicInfo *ba format->data_type = JXL_TYPE_UINT8; return basic_info->alpha_bits ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB24; } - if (basic_info->bits_per_sample > 16) - av_log(avctx, AV_LOG_WARNING, "Downsampling larger integer to 16-bit via libjxl\n"); - if (basic_info->exponent_bits_per_sample) - av_log(avctx, AV_LOG_WARNING, "Downsampling float to 16-bit integer via libjxl\n"); + if (basic_info->exponent_bits_per_sample || basic_info->bits_per_sample > 16) { + format->data_type = JXL_TYPE_FLOAT; + return basic_info->alpha_bits ? AV_PIX_FMT_RGBAF32 : AV_PIX_FMT_RGBF32; + } format->data_type = JXL_TYPE_UINT16; return basic_info->alpha_bits ? AV_PIX_FMT_RGBA64 : AV_PIX_FMT_RGB48; } diff --git a/libavcodec/libjxlenc.c b/libavcodec/libjxlenc.c index 0793ed251b..f9ae086e38 100644 --- a/libavcodec/libjxlenc.c +++ b/libavcodec/libjxlenc.c @@ -474,6 +474,7 @@ const FFCodec ff_libjxl_encoder = { .p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64, + AV_PIX_FMT_RGBF32, AV_PIX_FMT_RGBAF32, AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16, AV_PIX_FMT_GRAYF32, -- 2.37.3 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".