From 9e95d5e4531039f8e21c65ea88be9ad6aaa1ced0 Mon Sep 17 00:00:00 2001 From: Jacopo Mondi Date: Sat, 3 Oct 2020 11:28:47 +0200 Subject: android: camera_device: Move processing to CameraStream Move the JPEG processing procedure to the individual CameraStream by augmenting the class with a CameraStream::process() method. This allows removing the CameraStream::encoder() method. Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Jacopo Mondi --- src/android/camera_device.cpp | 68 ++----------------------------------------- src/android/camera_device.h | 8 +++++ src/android/camera_stream.cpp | 63 +++++++++++++++++++++++++++++++++++++++ src/android/camera_stream.h | 8 +++-- 4 files changed, 80 insertions(+), 67 deletions(-) diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index 68970eb4..914e66b8 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -23,9 +23,6 @@ #include "camera_metadata.h" #include "system/graphics.h" -#include "jpeg/encoder_libjpeg.h" -#include "jpeg/exif.h" - using namespace libcamera; namespace { @@ -133,12 +130,6 @@ const std::map camera3FormatsMap = { LOG_DECLARE_CATEGORY(HAL); -class MappedCamera3Buffer : public MappedBuffer -{ -public: - MappedCamera3Buffer(const buffer_handle_t camera3buffer, int flags); -}; - MappedCamera3Buffer::MappedCamera3Buffer(const buffer_handle_t camera3buffer, int flags) { @@ -1471,12 +1462,6 @@ void CameraDevice::requestComplete(Request *request) if (cameraStream->camera3Stream().format != HAL_PIXEL_FORMAT_BLOB) continue; - Encoder *encoder = cameraStream->encoder(); - if (!encoder) { - LOG(HAL, Error) << "Failed to identify encoder"; - continue; - } - StreamConfiguration *streamConfiguration = &config_->at(cameraStream->index()); Stream *stream = streamConfiguration->stream(); FrameBuffer *buffer = request->findBuffer(stream); @@ -1497,59 +1482,12 @@ void CameraDevice::requestComplete(Request *request) continue; } - /* Set EXIF metadata for various tags. */ - Exif exif; - /* \todo Set Make and Model from external vendor tags. */ - exif.setMake("libcamera"); - exif.setModel("cameraModel"); - exif.setOrientation(orientation_); - exif.setSize(cameraStream->size()); - /* - * We set the frame's EXIF timestamp as the time of encode. - * Since the precision we need for EXIF timestamp is only one - * second, it is good enough. - */ - exif.setTimestamp(std::time(nullptr)); - if (exif.generate() != 0) - LOG(HAL, Error) << "Failed to generate valid EXIF data"; - - int jpeg_size = encoder->encode(buffer, mapped.maps()[0], exif.data()); - if (jpeg_size < 0) { - LOG(HAL, Error) << "Failed to encode stream image"; + int ret = cameraStream->process(*buffer, &mapped, + resultMetadata.get()); + if (ret) { status = CAMERA3_BUFFER_STATUS_ERROR; continue; } - - /* - * Fill in the JPEG blob header. - * - * The mapped size of the buffer is being returned as - * substantially larger than the requested JPEG_MAX_SIZE - * (which is referenced from maxJpegBufferSize_). Utilise - * this static size to ensure the correct offset of the blob is - * determined. - * - * \todo Investigate if the buffer size mismatch is an issue or - * expected behaviour. - */ - uint8_t *resultPtr = mapped.maps()[0].data() + - maxJpegBufferSize_ - - sizeof(struct camera3_jpeg_blob); - auto *blob = reinterpret_cast(resultPtr); - blob->jpeg_blob_id = CAMERA3_JPEG_BLOB_ID; - blob->jpeg_size = jpeg_size; - - /* Update the JPEG result Metadata. */ - resultMetadata->addEntry(ANDROID_JPEG_SIZE, - &jpeg_size, 1); - - const uint32_t jpeg_quality = 95; - resultMetadata->addEntry(ANDROID_JPEG_QUALITY, - &jpeg_quality, 1); - - const uint32_t jpeg_orientation = 0; - resultMetadata->addEntry(ANDROID_JPEG_ORIENTATION, - &jpeg_orientation, 1); } /* Prepare to call back the Android camera stack. */ diff --git a/src/android/camera_device.h b/src/android/camera_device.h index 4e326fa3..826023b4 100644 --- a/src/android/camera_device.h +++ b/src/android/camera_device.h @@ -20,6 +20,7 @@ #include #include +#include "libcamera/internal/buffer.h" #include "libcamera/internal/log.h" #include "libcamera/internal/message.h" @@ -28,6 +29,12 @@ class CameraMetadata; +class MappedCamera3Buffer : public libcamera::MappedBuffer +{ +public: + MappedCamera3Buffer(const buffer_handle_t camera3buffer, int flags); +}; + class CameraDevice : protected libcamera::Loggable { public: @@ -50,6 +57,7 @@ public: int facing() const { return facing_; } int orientation() const { return orientation_; } + unsigned int maxJpegBufferSize() const { return maxJpegBufferSize_; } void setCallbacks(const camera3_callback_ops_t *callbacks); const camera_metadata_t *getStaticMetadata(); diff --git a/src/android/camera_stream.cpp b/src/android/camera_stream.cpp index b3d345af..e86a7ba6 100644 --- a/src/android/camera_stream.cpp +++ b/src/android/camera_stream.cpp @@ -8,11 +8,15 @@ #include "camera_stream.h" #include "camera_device.h" +#include "camera_metadata.h" #include "jpeg/encoder.h" #include "jpeg/encoder_libjpeg.h" +#include "jpeg/exif.h" using namespace libcamera; +LOG_DECLARE_CATEGORY(HAL); + CameraStream::CameraStream(CameraDevice *cameraDevice, camera3_stream_t *camera3Stream, const libcamera::StreamConfiguration &cfg, @@ -36,3 +40,62 @@ int CameraStream::configure(const libcamera::StreamConfiguration &cfg) return 0; } + +int CameraStream::process(const libcamera::FrameBuffer &source, + MappedCamera3Buffer *dest, CameraMetadata *metadata) +{ + if (!encoder_) + return 0; + + /* Set EXIF metadata for various tags. */ + Exif exif; + /* \todo Set Make and Model from external vendor tags. */ + exif.setMake("libcamera"); + exif.setModel("cameraModel"); + exif.setOrientation(cameraDevice_->orientation()); + exif.setSize(size_); + /* + * We set the frame's EXIF timestamp as the time of encode. + * Since the precision we need for EXIF timestamp is only one + * second, it is good enough. + */ + exif.setTimestamp(std::time(nullptr)); + if (exif.generate() != 0) + LOG(HAL, Error) << "Failed to generate valid EXIF data"; + + int jpeg_size = encoder_->encode(&source, dest->maps()[0], exif.data()); + if (jpeg_size < 0) { + LOG(HAL, Error) << "Failed to encode stream image"; + return jpeg_size; + } + + /* + * Fill in the JPEG blob header. + * + * The mapped size of the buffer is being returned as + * substantially larger than the requested JPEG_MAX_SIZE + * (which is referenced from maxJpegBufferSize_). Utilise + * this static size to ensure the correct offset of the blob is + * determined. + * + * \todo Investigate if the buffer size mismatch is an issue or + * expected behaviour. + */ + uint8_t *resultPtr = dest->maps()[0].data() + + cameraDevice_->maxJpegBufferSize() - + sizeof(struct camera3_jpeg_blob); + auto *blob = reinterpret_cast(resultPtr); + blob->jpeg_blob_id = CAMERA3_JPEG_BLOB_ID; + blob->jpeg_size = jpeg_size; + + /* Update the JPEG result Metadata. */ + metadata->addEntry(ANDROID_JPEG_SIZE, &jpeg_size, 1); + + const uint32_t jpeg_quality = 95; + metadata->addEntry(ANDROID_JPEG_QUALITY, &jpeg_quality, 1); + + const uint32_t jpeg_orientation = 0; + metadata->addEntry(ANDROID_JPEG_ORIENTATION, &jpeg_orientation, 1); + + return 0; +} diff --git a/src/android/camera_stream.h b/src/android/camera_stream.h index ccc822b4..d95c2a38 100644 --- a/src/android/camera_stream.h +++ b/src/android/camera_stream.h @@ -11,12 +11,15 @@ #include +#include #include #include #include -class CameraDevice; class Encoder; +class CameraDevice; +class CameraMetadata; +class MappedCamera3Buffer; class CameraStream { @@ -113,9 +116,10 @@ public: const libcamera::Size &size() const { return size_; } Type type() const { return type_; } unsigned int index() const { return index_; } - Encoder *encoder() const { return encoder_.get(); } int configure(const libcamera::StreamConfiguration &cfg); + int process(const libcamera::FrameBuffer &source, + MappedCamera3Buffer *dest, CameraMetadata *metadata); private: CameraDevice *cameraDevice_; -- cgit v1.2.1