Mulai 27 Maret 2025, sebaiknya gunakan android-latest-release
, bukan aosp-main
, untuk mem-build dan berkontribusi pada AOSP. Untuk mengetahui informasi selengkapnya, lihat Perubahan pada AOSP.
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Referensi Struct camera2_jpeg_blob
#include <
camera2.h
>
Header transpor untuk buffering JPEG yang dikompresi dalam aliran output.
Untuk mengambil gambar JPEG, streaming dibuat menggunakan format piksel HAL_PIXEL_FORMAT_BLOB, dan kolom metadata statis android.jpeg.maxSize digunakan sebagai ukuran buffer. Karena gambar JPEG yang dikompresi memiliki ukuran variabel, HAL perlu menyertakan ukuran akhir gambar yang dikompresi menggunakan struktur ini di dalam buffer aliran output. Kolom ID blob JPEG harus ditetapkan ke CAMERA2_JPEG_BLOB_ID.
Header transpor harus berada di akhir buffering aliran output JPEG. Artinya, jpeg_blob_id harus dimulai dari byte[android.jpeg.maxSize - sizeof(camera2_jpeg_blob)]. Setiap HAL yang menggunakan header transpor ini harus memperhitungkannya di android.jpeg.maxSize. Data JPEG itu sendiri dimulai dari byte[0] dan harus berukuran byte jpeg_size.
Definisi di baris
146
file
camera2.h
.
Dokumentasi untuk struct ini dibuat dari file berikut:
-
hardware/libhardware/include/hardware/
camera2.h
Konten dan contoh kode di halaman ini tunduk kepada lisensi yang dijelaskan dalam Lisensi Konten. Java dan OpenJDK adalah merek dagang atau merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-27 UTC.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-07-27 UTC."],[],[],null,["# Android Hardware Abstraction Layer: camera2_jpeg_blob Struct Reference\n\ncamera2_jpeg_blob Struct Reference\n==================================\n\n[Data Fields](#pub-attribs) \ncamera2_jpeg_blob Struct Reference \n\n`\n#include \u003c\n`[camera2.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)`\n\u003e\n`\n\n|----------|--------------------------------------------------------------------------------------------|\n| Data Fields ----------- ||\n| uint16_t | [jpeg_blob_id](/reference/hal/structcamera2__jpeg__blob#a8eecd9b8a99477acdd51629ad25470fe) |\n| ||\n| uint32_t | [jpeg_size](/reference/hal/structcamera2__jpeg__blob#a2dcb603ff79e35e18e814e85f75c83e5) |\n| ||\n\n\nDetailed Description\n--------------------\n\n\nTransport header for compressed JPEG buffers in output streams.\n\n\nTo capture JPEG images, a stream is created using the pixel format HAL_PIXEL_FORMAT_BLOB, and the static metadata field android.jpeg.maxSize is used as the buffer size. Since compressed JPEG images are of variable size, the HAL needs to include the final size of the compressed image using this structure inside the output stream buffer. The JPEG blob ID field must be set to CAMERA2_JPEG_BLOB_ID.\n\n\nTransport header should be at the end of the JPEG output stream buffer. That means the jpeg_blob_id must start at byte\\[android.jpeg.maxSize - sizeof(camera2_jpeg_blob)\\]. Any HAL using this transport header must account for it in android.jpeg.maxSize. The JPEG data itself starts at byte\\[0\\] and should be jpeg_size bytes long.\n\n\nDefinition at line\n[146](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\nof file\n[camera2.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\n.\n\nField Documentation\n-------------------\n\n\n|-----------------------|\n| uint16_t jpeg_blob_id |\n\n\nDefinition at line\n[147](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\nof file\n[camera2.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\n.\n\n|--------------------|\n| uint32_t jpeg_size |\n\n\nDefinition at line\n[148](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\nof file\n[camera2.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)\n.\n\n*** ** * ** ***\n\nThe documentation for this struct was generated from the following file:\n\n- hardware/libhardware/include/hardware/ [camera2.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/camera2.h)"]]