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Ensure VipsArea is unreferenced after Buffer-based output

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Prevents the leak of a ~1KB GMutex per output image
This commit is contained in:
Lovell Fuller 2016-02-09 19:28:11 +00:00
parent 09b019ed13
commit afb30b3695
1 changed files with 18 additions and 6 deletions
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24
src/pipeline.cc
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@ -713,7 +713,7 @@ class PipelineWorker : public AsyncWorker {
// Buffer output
if (baton->formatOut == "jpeg" || (baton->formatOut == "input" && inputImageType == ImageType::JPEG)) {
// Write JPEG to buffer
baton->bufferOut = static_cast<char*>(const_cast<void*>(vips_blob_get(image.jpegsave_buffer(VImage::option()
VipsArea *area = VIPS_AREA(image.jpegsave_buffer(VImage::option()
->set("strip", !baton->withMetadata)
->set("Q", baton->quality)
->set("optimize_coding", TRUE)
@ -722,23 +722,35 @@ class PipelineWorker : public AsyncWorker {
->set("overshoot_deringing", baton->overshootDeringing)
->set("optimize_scans", baton->optimiseScans)
->set("interlace", baton->progressive)
), &baton->bufferOutLength)));
));
baton->bufferOut = static_cast<char*>(area->data);
baton->bufferOutLength = area->length;
area->free_fn = nullptr;
vips_area_unref(area);
baton->formatOut = "jpeg";
} else if (baton->formatOut == "png" || (baton->formatOut == "input" && inputImageType == ImageType::PNG)) {
// Write PNG to buffer
baton->bufferOut = static_cast<char*>(const_cast<void*>(vips_blob_get(image.pngsave_buffer(VImage::option()
VipsArea *area = VIPS_AREA(image.pngsave_buffer(VImage::option()
->set("strip", !baton->withMetadata)
->set("compression", baton->compressionLevel)
->set("interlace", baton->progressive)
->set("filter", baton->withoutAdaptiveFiltering ? VIPS_FOREIGN_PNG_FILTER_NONE : VIPS_FOREIGN_PNG_FILTER_ALL)
), &baton->bufferOutLength)));
));
baton->bufferOut = static_cast<char*>(area->data);
baton->bufferOutLength = area->length;
area->free_fn = nullptr;
vips_area_unref(area);
baton->formatOut = "png";
} else if (baton->formatOut == "webp" || (baton->formatOut == "input" && inputImageType == ImageType::WEBP)) {
// Write WEBP to buffer
baton->bufferOut = static_cast<char*>(const_cast<void*>(vips_blob_get(image.webpsave_buffer(VImage::option()
VipsArea *area = VIPS_AREA(image.webpsave_buffer(VImage::option()
->set("strip", !baton->withMetadata)
->set("Q", baton->quality)
), &baton->bufferOutLength)));
));
baton->bufferOut = static_cast<char*>(area->data);
baton->bufferOutLength = area->length;
area->free_fn = nullptr;
vips_area_unref(area);
baton->formatOut = "webp";
} else if (baton->formatOut == "raw") {
// Write raw, uncompressed image data to buffer