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android: Modify Encoder interface

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In Encoder::encode(), the |source| argument doesn't have to be a
pointer. This replaces its type, const pointer, with const
reference as the latter is preferred to the former.
libcamera::Span is cheap to construct/copy/move. We should deal
with the type as pass-by-value parameter. Therefore this also
drops the const reference in the |destination| argument.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Hirokazu Honda 2020-10-21 10:39:53 +09:00 • committed by Kieran Bingham
parent b8dd5ce944
commit 90c193f2a7
4 changed files with 8 additions and 8 deletions
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4
src/android/jpeg/encoder.h
View file

@ -17,8 +17,8 @@ public:
virtual ~Encoder() {}
virtual int configure(const libcamera::StreamConfiguration &cfg) = 0;
virtual int encode(const libcamera::FrameBuffer *source,
const libcamera::Span<uint8_t> &destination,
virtual int encode(const libcamera::FrameBuffer &source,
libcamera::Span<uint8_t> destination,
const libcamera::Span<const uint8_t> &exifData) = 0;
};

6
src/android/jpeg/encoder_libjpeg.cpp
View file

@ -179,11 +179,11 @@ void EncoderLibJpeg::compressNV(const libcamera::MappedBuffer *frame)
}
}
int EncoderLibJpeg::encode(const FrameBuffer *source,
const libcamera::Span<uint8_t> &dest,
int EncoderLibJpeg::encode(const FrameBuffer &source,
libcamera::Span<uint8_t> dest,
const libcamera::Span<const uint8_t> &exifData)
{
MappedFrameBuffer frame(source, PROT_READ);
MappedFrameBuffer frame(&source, PROT_READ);
if (!frame.isValid()) {
LOG(JPEG, Error) << "Failed to map FrameBuffer : "
<< strerror(frame.error());

4
src/android/jpeg/encoder_libjpeg.h
View file

@ -21,8 +21,8 @@ public:
~EncoderLibJpeg();
int configure(const libcamera::StreamConfiguration &cfg) override;
int encode(const libcamera::FrameBuffer *source,
const libcamera::Span<uint8_t> &destination,
int encode(const libcamera::FrameBuffer &source,
libcamera::Span<uint8_t> destination,
const libcamera::Span<const uint8_t> &exifData) override;
private:

2
src/android/jpeg/post_processor_jpeg.cpp
View file

@ -67,7 +67,7 @@ int PostProcessorJpeg::process(const libcamera::FrameBuffer &source,
if (exif.generate() != 0)
LOG(JPEG, Error) << "Failed to generate valid EXIF data";
int jpeg_size = encoder_->encode(&source, destination, exif.data());
int jpeg_size = encoder_->encode(source, destination, exif.data());
if (jpeg_size < 0) {
LOG(JPEG, Error) << "Failed to encode stream image";
return jpeg_size;