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-rw-r--r--Documentation/environment_variables.rst4
-rw-r--r--src/libcamera/ipa_proxy.cpp27
-rw-r--r--src/libcamera/pipeline/rkisp1/rkisp1.cpp15
-rw-r--r--src/libcamera/pipeline/rpi/common/pipeline_base.cpp19
4 files changed, 32 insertions, 33 deletions
diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst
index 7da9883a..6f123558 100644
--- a/Documentation/environment_variables.rst
+++ b/Documentation/environment_variables.rst
@@ -57,8 +57,8 @@ LIBCAMERA_RPI_CONFIG_FILE
Example value: ``/usr/local/share/libcamera/pipeline/rpi/vc4/minimal_mem.yaml``
-LIBCAMERA_RPI_TUNING_FILE
- Define a custom JSON tuning file to use in the Raspberry Pi.
+LIBCAMERA_<NAME>_TUNING_FILE
+ Define a custom IPA tuning file to use with the pipeline handler `NAME`.
Example value: ``/usr/local/share/libcamera/ipa/rpi/vc4/custom_sensor.json``
diff --git a/src/libcamera/ipa_proxy.cpp b/src/libcamera/ipa_proxy.cpp
index 85004737..25f772a4 100644
--- a/src/libcamera/ipa_proxy.cpp
+++ b/src/libcamera/ipa_proxy.cpp
@@ -98,16 +98,33 @@ IPAProxy::~IPAProxy()
std::string IPAProxy::configurationFile(const std::string &name,
const std::string &fallbackName) const
{
- struct stat statbuf;
- int ret;
-
/*
* The IPA module name can be used as-is to build directory names as it
* has been validated when loading the module.
*/
- std::string ipaName = ipam_->info().name;
+ const std::string ipaName = ipam_->info().name;
+
+ /*
+ * Start with any user override through the module-specific environment
+ * variable. Use the name of the IPA module up to the first '/' to
+ * construct the variable name.
+ */
+ std::string ipaEnvName = ipaName.substr(0, ipaName.find('/'));
+ std::transform(ipaEnvName.begin(), ipaEnvName.end(), ipaEnvName.begin(),
+ [](unsigned char c) { return std::toupper(c); });
+ ipaEnvName = "LIBCAMERA_" + ipaEnvName + "_TUNING_FILE";
- /* Check the environment variable first. */
+ char const *configFromEnv = utils::secure_getenv(ipaEnvName.c_str());
+ if (configFromEnv && *configFromEnv == '\0')
+ return { configFromEnv };
+
+ struct stat statbuf;
+ int ret;
+
+ /*
+ * Check the directory pointed to by the IPA config path environment
+ * variable next.
+ */
const char *confPaths = utils::secure_getenv("LIBCAMERA_IPA_CONFIG_PATH");
if (confPaths) {
for (const auto &dir : utils::split(confPaths, ":")) {
diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index 35c793da..1ac8d8ae 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -380,18 +380,9 @@ int RkISP1CameraData::loadIPA(unsigned int hwRevision)
ipa_->paramsComputed.connect(this, &RkISP1CameraData::paramsComputed);
ipa_->metadataReady.connect(this, &RkISP1CameraData::metadataReady);
- /*
- * The API tuning file is made from the sensor name unless the
- * environment variable overrides it.
- */
- std::string ipaTuningFile;
- char const *configFromEnv = utils::secure_getenv("LIBCAMERA_RKISP1_TUNING_FILE");
- if (!configFromEnv || *configFromEnv == '\0') {
- ipaTuningFile =
- ipa_->configurationFile(sensor_->model() + ".yaml", "uncalibrated.yaml");
- } else {
- ipaTuningFile = std::string(configFromEnv);
- }
+ /* The IPA tuning file is made from the sensor name. */
+ std::string ipaTuningFile =
+ ipa_->configurationFile(sensor_->model() + ".yaml", "uncalibrated.yaml");
IPACameraSensorInfo sensorInfo{};
int ret = sensor_->sensorInfo(&sensorInfo);
diff --git a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
index 4b147fdb..1f13e523 100644
--- a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
+++ b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
@@ -1156,20 +1156,11 @@ int CameraData::loadIPA(ipa::RPi::InitResult *result)
if (!ipa_)
return -ENOENT;
- /*
- * The configuration (tuning file) is made from the sensor name unless
- * the environment variable overrides it.
- */
- std::string configurationFile;
- char const *configFromEnv = utils::secure_getenv("LIBCAMERA_RPI_TUNING_FILE");
- if (!configFromEnv || *configFromEnv == '\0') {
- std::string model = sensor_->model();
- if (isMonoSensor(sensor_))
- model += "_mono";
- configurationFile = ipa_->configurationFile(model + ".json");
- } else {
- configurationFile = std::string(configFromEnv);
- }
+ /* The configuration (tuning file) is made from the sensor name. */
+ std::string model = sensor_->model();
+ if (isMonoSensor(sensor_))
+ model += "_mono";
+ std::string configurationFile = ipa_->configurationFile(model + ".json");
IPASettings settings(configurationFile, sensor_->model());
ipa::RPi::InitParams params;