From 666f17affcad23118e110909331b499411b57562 Mon Sep 17 00:00:00 2001 From: Milan Zamazal Date: Fri, 22 Mar 2024 20:50:32 +0100 Subject: apps: cam: Add support for PPM output format When file output is requested from cam app, it simply dumps the processed data and it must be converted to a readable image format manually. Let's add support for PPM output file format to make files produced by cam directly readable by image display and processing software. For now, only BGR888 output format, which is the simplest one to use, is supported but nothing prevents adding support for other output formats if needed. Nevertheless, they would typically need byte reordering or other conversions for PPM file format. It may be better to find a way to dump the image data in other output formats directly using some of the already existing file formats or raw file format converters. Signed-off-by: Milan Zamazal Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- src/apps/cam/file_sink.cpp | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/apps/cam/file_sink.cpp') diff --git a/src/apps/cam/file_sink.cpp b/src/apps/cam/file_sink.cpp index dca350c4..906b50e6 100644 --- a/src/apps/cam/file_sink.cpp +++ b/src/apps/cam/file_sink.cpp @@ -17,6 +17,7 @@ #include "../common/dng_writer.h" #include "../common/image.h" +#include "../common/ppm_writer.h" #include "file_sink.h" @@ -76,6 +77,7 @@ void FileSink::writeBuffer(const Stream *stream, FrameBuffer *buffer, #ifdef HAVE_TIFF bool dng = filename.find(".dng", filename.size() - 4) != std::string::npos; #endif /* HAVE_TIFF */ + bool ppm = filename.find(".ppm", filename.size() - 4) != std::string::npos; if (filename.empty() || filename.back() == '/') filename += "frame-#.bin"; @@ -102,6 +104,15 @@ void FileSink::writeBuffer(const Stream *stream, FrameBuffer *buffer, return; } #endif /* HAVE_TIFF */ + if (ppm) { + ret = PPMWriter::write(filename.c_str(), stream->configuration(), + image->data(0)); + if (ret < 0) + std::cerr << "failed to write PPM file `" << filename + << "'" << std::endl; + + return; + } fd = open(filename.c_str(), O_CREAT | O_WRONLY | (pos == std::string::npos ? O_APPEND : O_TRUNC), -- cgit v1.2.1