From c4e6affd24397ab2c47f28f7a109dca89604ba7b Mon Sep 17 00:00:00 2001
From: Good Guy <good1.2guy@gmail.com>
Date: Fri, 28 Oct 2022 18:43:16 -0600
Subject: [PATCH] Credit Andrew R for finding the direct copy mods for exr and
 ppm sequences

---
 cinelerra-5.1/cinelerra/fileexr.C | 9 +++++++++
 cinelerra-5.1/cinelerra/fileexr.h | 1 +
 cinelerra-5.1/cinelerra/fileppm.C | 9 +++++++++
 cinelerra-5.1/cinelerra/fileppm.h | 1 +
 4 files changed, 20 insertions(+)

diff --git a/cinelerra-5.1/cinelerra/fileexr.C b/cinelerra-5.1/cinelerra/fileexr.C
index fbc39862..e09dd1fc 100644
--- a/cinelerra-5.1/cinelerra/fileexr.C
+++ b/cinelerra-5.1/cinelerra/fileexr.C
@@ -506,6 +506,15 @@ int FileEXR::write_frame(VFrame *frame, VFrame *data, FrameWriterUnit *unit)
 	return 0;
 }
 
+int FileEXR::can_copy_from(Asset *asset, int64_t position)
+{
+	if(asset->format == FILE_EXR ||
+		asset->format == FILE_EXR_LIST)
+		return 1;
+
+	return 0;
+}
+
 FrameWriterUnit* FileEXR::new_writer_unit(FrameWriter *writer)
 {
 	return new EXRUnit(this, writer);
diff --git a/cinelerra-5.1/cinelerra/fileexr.h b/cinelerra-5.1/cinelerra/fileexr.h
index 5f5b251e..40fb01c9 100644
--- a/cinelerra-5.1/cinelerra/fileexr.h
+++ b/cinelerra-5.1/cinelerra/fileexr.h
@@ -44,6 +44,7 @@ public:
 	int read_frame_header(char *path);
 	int read_frame(VFrame *frame, VFrame *data);
 	int64_t get_memory_usage();
+	int can_copy_from(Asset *asset, int64_t position);
 	int write_frame(VFrame *frame, VFrame *data, FrameWriterUnit *unit);
 	FrameWriterUnit* new_writer_unit(FrameWriter *writer);
 
diff --git a/cinelerra-5.1/cinelerra/fileppm.C b/cinelerra-5.1/cinelerra/fileppm.C
index e91690a1..fe10742d 100644
--- a/cinelerra-5.1/cinelerra/fileppm.C
+++ b/cinelerra-5.1/cinelerra/fileppm.C
@@ -183,6 +183,15 @@ int FilePPM::write_frame(VFrame *frame, VFrame *output,
 	return 0;
 }
 
+int FilePPM::can_copy_from(Asset *asset, int64_t position)
+{
+	if(asset->format == FILE_PPM ||
+		asset->format == FILE_PPM_LIST)
+		return 1;
+
+	return 0;
+}
+
 int FilePPM::colormodel_supported(int colormodel)
 {
 	return BC_RGB888;
diff --git a/cinelerra-5.1/cinelerra/fileppm.h b/cinelerra-5.1/cinelerra/fileppm.h
index ec6a094a..4711b107 100644
--- a/cinelerra-5.1/cinelerra/fileppm.h
+++ b/cinelerra-5.1/cinelerra/fileppm.h
@@ -43,6 +43,7 @@ public:
 	int check_frame_header(FILE *fp);
 	int read_frame_header(char *path);
 	int write_frame(VFrame *frame, VFrame *output, FrameWriterUnit *unit);
+	int can_copy_from(Asset *asset, int64_t position);
 	FrameWriterUnit* new_writer_unit(FrameWriter *writer);
 	static void get_parameters(BC_WindowBase *parent_window,
 		Asset *asset, BC_WindowBase* &format_window,
-- 
2.26.2