Fix compilation error when there is no libjpeg (pytorch#8342)

cdzhan · vfdev-5 · pruthvistony · commit 593b6f9738fe · 2024-05-04T12:19:21.000-07:00
Co-authored-by: vfdev &lt;vfdev.5@gmail.com&gt;
diff --git a/torchvision/csrc/io/image/cpu/exif.h b/torchvision/csrc/io/image/cpu/exif.h
@@ -196,10 +196,6 @@ inline int fetch_jpeg_exif_orientation(j_decompress_ptr cinfo) {
 
   return fetch_exif_orientation(exif_data_ptr, size);
 }
-#else // #if JPEG_FOUND
-inline int fetch_jpeg_exif_orientation(j_decompress_ptr cinfo) {
-  return -1;
-}
 #endif // #if JPEG_FOUND
 
 #if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)
@@ -217,10 +213,6 @@ inline int fetch_png_exif_orientation(png_structp png_ptr, png_infop info_ptr) {
   }
   return -1;
 }
-#else // #if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)
-inline int fetch_png_exif_orientation(png_structp png_ptr, png_infop info_ptr) {
-  return -1;
-}
 #endif // #if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)
 
 constexpr uint16_t IMAGE_ORIENTATION_TL = 1; // normal orientation

Original file line number	Diff line number	Diff line change
`@@ -196,10 +196,6 @@ inline int fetch_jpeg_exif_orientation(j_decompress_ptr cinfo) {`
`196`	`196`
`197`	`197`	`return fetch_exif_orientation(exif_data_ptr, size);`
`198`	`198`	`}`
`199`		`-#else // #if JPEG_FOUND`
`200`		`-inline int fetch_jpeg_exif_orientation(j_decompress_ptr cinfo) {`
`201`		`- return -1;`
`202`		`-}`
`203`	`199`	`#endif // #if JPEG_FOUND`
`204`	`200`
`205`	`201`	`#if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)`
`@@ -217,10 +213,6 @@ inline int fetch_png_exif_orientation(png_structp png_ptr, png_infop info_ptr) {`
`217`	`213`	`}`
`218`	`214`	`return -1;`
`219`	`215`	`}`
`220`		`-#else // #if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)`
`221`		`-inline int fetch_png_exif_orientation(png_structp png_ptr, png_infop info_ptr) {`
`222`		`- return -1;`
`223`		`-}`
`224`	`216`	`#endif // #if PNG_FOUND && defined(PNG_eXIf_SUPPORTED)`
`225`	`217`
`226`	`218`	`constexpr uint16_t IMAGE_ORIENTATION_TL = 1; // normal orientation`