diff options
Diffstat (limited to 'src/libcamera/pipeline/rkisp1/rkisp1_path.cpp')
| -rw-r--r-- | src/libcamera/pipeline/rkisp1/rkisp1_path.cpp | 115 |
1 files changed, 100 insertions, 15 deletions
diff --git a/src/libcamera/pipeline/rkisp1/rkisp1_path.cpp b/src/libcamera/pipeline/rkisp1/rkisp1_path.cpp index c49017d1..64018dc5 100644 --- a/src/libcamera/pipeline/rkisp1/rkisp1_path.cpp +++ b/src/libcamera/pipeline/rkisp1/rkisp1_path.cpp @@ -126,12 +126,50 @@ void RkISP1Path::populateFormats() } } +/** + * \brief Filter the sensor resolutions that can be supported + * \param[in] sensor The camera sensor + * + * This function retrieves all the sizes supported by the sensor and + * filters all the resolutions that can be supported on the pipeline. + * It is possible that the sensor's maximum output resolution is higher + * than the ISP maximum input. In that case, this function filters out all + * the resolution incapable of being supported and returns the maximum + * sensor resolution that can be supported by the pipeline. + * + * \return Maximum sensor size supported on the pipeline + */ +Size RkISP1Path::filterSensorResolution(const CameraSensor *sensor) +{ + auto iter = sensorSizesMap_.find(sensor); + if (iter != sensorSizesMap_.end()) + return iter->second.back(); + + std::vector<Size> &sizes = sensorSizesMap_[sensor]; + for (unsigned int code : sensor->mbusCodes()) { + for (const Size &size : sensor->sizes(code)) { + if (size.width > maxResolution_.width || + size.height > maxResolution_.height) + continue; + + sizes.push_back(size); + } + } + + /* Sort in increasing order and remove duplicates. */ + std::sort(sizes.begin(), sizes.end()); + auto last = std::unique(sizes.begin(), sizes.end()); + sizes.erase(last, sizes.end()); + + return sizes.back(); +} + StreamConfiguration RkISP1Path::generateConfiguration(const CameraSensor *sensor, const Size &size, StreamRole role) { const std::vector<unsigned int> &mbusCodes = sensor->mbusCodes(); - const Size &resolution = sensor->resolution(); + Size resolution = filterSensorResolution(sensor); /* Min and max resolutions to populate the available stream formats. */ Size maxResolution = maxResolution_.boundedToAspectRatio(resolution) @@ -216,11 +254,13 @@ RkISP1Path::generateConfiguration(const CameraSensor *sensor, const Size &size, return cfg; } -CameraConfiguration::Status RkISP1Path::validate(const CameraSensor *sensor, - StreamConfiguration *cfg) +CameraConfiguration::Status +RkISP1Path::validate(const CameraSensor *sensor, + const std::optional<SensorConfiguration> &sensorConfig, + StreamConfiguration *cfg) { const std::vector<unsigned int> &mbusCodes = sensor->mbusCodes(); - const Size &resolution = sensor->resolution(); + Size resolution = filterSensorResolution(sensor); const StreamConfiguration reqCfg = *cfg; CameraConfiguration::Status status = CameraConfiguration::Valid; @@ -247,9 +287,14 @@ CameraConfiguration::Status RkISP1Path::validate(const CameraSensor *sensor, continue; /* - * Store the raw format with the highest bits per pixel - * for later usage. + * If the bits per pixel is supplied from the sensor + * configuration, choose a raw format that complies with + * it. Otherwise, store the raw format with the highest + * bits per pixel for later usage. */ + if (sensorConfig && info.bitsPerPixel != sensorConfig->bitDepth) + continue; + if (info.bitsPerPixel > rawBitsPerPixel) { rawBitsPerPixel = info.bitsPerPixel; rawFormat = format; @@ -262,6 +307,9 @@ CameraConfiguration::Status RkISP1Path::validate(const CameraSensor *sensor, } } + if (sensorConfig && !rawFormat.isValid()) + return CameraConfiguration::Invalid; + bool isRaw = PixelFormatInfo::info(cfg->pixelFormat).colourEncoding == PixelFormatInfo::ColourEncodingRAW; @@ -281,14 +329,48 @@ CameraConfiguration::Status RkISP1Path::validate(const CameraSensor *sensor, if (isRaw) { /* * Use the sensor output size closest to the requested stream - * size. + * size while ensuring the output size doesn't exceed ISP limits. + * + * As 'resolution' is the largest sensor resolution + * supported by the ISP, CameraSensor::getFormat() will never + * return a V4L2SubdeviceFormat with a larger size. */ uint32_t mbusCode = formatToMediaBus.at(cfg->pixelFormat); + cfg->size.boundTo(resolution); + + Size rawSize = sensorConfig ? sensorConfig->outputSize + : cfg->size; + V4L2SubdeviceFormat sensorFormat = - sensor->getFormat({ mbusCode }, cfg->size); + sensor->getFormat({ mbusCode }, rawSize); + + if (sensorConfig && + sensorConfig->outputSize != sensorFormat.size) + return CameraConfiguration::Invalid; minResolution = sensorFormat.size; maxResolution = sensorFormat.size; + } else if (sensorConfig) { + /* + * We have already ensured 'rawFormat' has the matching bit + * depth with sensorConfig.bitDepth hence, only validate the + * sensorConfig's output size here. + */ + Size sensorSize = sensorConfig->outputSize; + + if (sensorSize > resolution) + return CameraConfiguration::Invalid; + + uint32_t mbusCode = formatToMediaBus.at(rawFormat); + V4L2SubdeviceFormat sensorFormat = + sensor->getFormat({ mbusCode }, sensorSize); + + if (sensorFormat.size != sensorSize) + return CameraConfiguration::Invalid; + + minResolution = minResolution_.expandedToAspectRatio(sensorSize); + maxResolution = maxResolution_.boundedTo(sensorSize) + .boundedToAspectRatio(sensorSize); } else { /* * Adjust the size based on the sensor resolution and absolute @@ -338,11 +420,14 @@ int RkISP1Path::configure(const StreamConfiguration &config, /* * Crop on the resizer input to maintain FOV before downscaling. * - * \todo The alignment to a multiple of 2 pixels is required but may - * change the aspect ratio very slightly. A more advanced algorithm to - * compute the resizer input crop rectangle is needed, and it should - * also take into account the need to crop away the edge pixels affected - * by the ISP processing blocks. + * Note that this does not apply to devices without DUAL_CROP support + * (like imx8mp) , where the cropping needs to be done on the + * ImageStabilizer block on the ISP source pad and therefore is + * configured before this stage. For simplicity we still set the crop. + * This gets ignored by the kernel driver because the hardware is + * missing the capability. + * + * Alignment to a multiple of 2 pixels is required by the resizer. */ Size ispCrop = inputFormat.size.boundedToAspectRatio(config.size) .alignedUpTo(2, 2); @@ -435,8 +520,8 @@ void RkISP1Path::stop() } /* - * \todo Remove the hardcoded resolutions and formats once all users will have - * migrated to a recent enough kernel. + * \todo Remove the hardcoded resolutions and formats once kernels older than + * v6.4 will stop receiving LTS support (scheduled for December 2027 for v6.1). */ namespace { constexpr Size RKISP1_RSZ_MP_SRC_MIN{ 32, 16 }; |