Mirror/libcamera
1
0
Fork 0
mirror of https://git.libcamera.org/libcamera/libcamera.git synced 2025-07-16 00:45:07 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

android: jpeg: Set thumbnail and JPEG quality based on request

Browse source 
Set the thumbnail quality and the JPEG quality based on the android
request metadata.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Paul Elder 2021-01-23 14:08:35 +09:00
parent a6de3f0203
commit ab72e6641c
5 changed files with 24 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

26
src/android/jpeg/post_processor_jpeg.cpp
View file

@ -52,6 +52,7 @@ int PostProcessorJpeg::configure(const StreamConfiguration &inCfg,
void PostProcessorJpeg::generateThumbnail(const FrameBuffer &source,
const Size &targetSize,
unsigned int quality,
std::vector<unsigned char> *thumbnail)
{
/* Stores the raw scaled-down thumbnail bytes. */
@ -72,7 +73,7 @@ void PostProcessorJpeg::generateThumbnail(const FrameBuffer &source,
thumbnail->resize(rawThumbnail.size());
int jpeg_size = thumbnailEncoder_.encode(rawThumbnail,
*thumbnail, {});
*thumbnail, {}, quality);
thumbnail->resize(jpeg_size);
LOG(JPEG, Debug)
@ -135,20 +136,18 @@ int PostProcessorJpeg::process(const FrameBuffer &source,
Size thumbnailSize = { static_cast<uint32_t>(data[0]),
static_cast<uint32_t>(data[1]) };
ret = requestMetadata.getEntry(ANDROID_JPEG_THUMBNAIL_QUALITY, &entry);
uint8_t quality = ret ? *entry.data.u8 : 95;
resultMetadata->addEntry(ANDROID_JPEG_THUMBNAIL_QUALITY, &quality, 1);
if (thumbnailSize != Size(0, 0)) {
std::vector<unsigned char> thumbnail;
generateThumbnail(source, thumbnailSize, &thumbnail);
generateThumbnail(source, thumbnailSize, quality, &thumbnail);
if (!thumbnail.empty())
exif.setThumbnail(thumbnail, Exif::Compression::JPEG);
}
resultMetadata->addEntry(ANDROID_JPEG_THUMBNAIL_SIZE, data, 2);
/* \todo Use this quality as a parameter to the encoder */
ret = requestMetadata.getEntry(ANDROID_JPEG_THUMBNAIL_QUALITY, &entry);
if (ret)
resultMetadata->addEntry(ANDROID_JPEG_THUMBNAIL_QUALITY,
entry.data.u8, 1);
}
ret = requestMetadata.getEntry(ANDROID_JPEG_GPS_COORDINATES, &entry);
@ -169,7 +168,11 @@ int PostProcessorJpeg::process(const FrameBuffer &source,
if (exif.generate() != 0)
LOG(JPEG, Error) << "Failed to generate valid EXIF data";
int jpeg_size = encoder_->encode(source, destination, exif.data());
ret = requestMetadata.getEntry(ANDROID_JPEG_QUALITY, &entry);
const uint8_t quality = ret ? *entry.data.u8 : 95;
resultMetadata->addEntry(ANDROID_JPEG_QUALITY, &quality, 1);
int jpeg_size = encoder_->encode(source, destination, exif.data(), quality);
if (jpeg_size < 0) {
LOG(JPEG, Error) << "Failed to encode stream image";
return jpeg_size;
@ -197,10 +200,5 @@ int PostProcessorJpeg::process(const FrameBuffer &source,
/* Update the JPEG result Metadata. */
resultMetadata->addEntry(ANDROID_JPEG_SIZE, &jpeg_size, 1);
/* \todo Configure JPEG encoder with this */
ret = requestMetadata.getEntry(ANDROID_JPEG_QUALITY, &entry);
const uint8_t jpegQuality = ret ? *entry.data.u8 : 95;
resultMetadata->addEntry(ANDROID_JPEG_QUALITY, &jpegQuality, 1);
return 0;
}