ctest, README.md, first pass at github action

5 files changed, 18 insertions, 6 deletions

diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 61c9c5c..b5425d0 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -22,6 +22,7 @@ jobs:
       run: |
            sudo apt-get update
            sudo apt-get install octave octave-common octave-signal liboctave-dev gnuplot sox p7zip-full python3-numpy valgrind clang-format
+           sudo apt-get install texmaker texlive-bibtex-extra texlive-science
 
     - name: Create Build Directory
       shell: bash
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d96667f..3f3a1dc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -312,6 +312,10 @@ if(UNITTEST)
              COMMAND sh -c "cd ${CMAKE_CURRENT_SOURCE_DIR};
                             clang-format --dry-run --Werror src/*.c src/*.h unittest/*.c demo/*.c")
 
+    add_test(NAME test_codec2_doc
+             COMMAND sh -c "cd ${CMAKE_CURRENT_SOURCE_DIR}/doc;
+                            CODEC2_SRC=${CMAKE_CURRENT_SOURCE_DIR} CODEC2_BINARY=${CMAKE_CURRENT_BINARY_DIR} make")
+
     add_test(NAME test_freedv_get_hash
              COMMAND sh -c "${CMAKE_CURRENT_BINARY_DIR}/unittest/thash")
 
diff --git a/README.md b/README.md
index 46ef6b2..726152c 100644
--- a/README.md
+++ b/README.md
@@ -110,6 +110,10 @@ We have standardized on C99 and develop and test using gcc on a Linux platform.
    make
    ```
 
+## Documentation
+
+An algorithm description can be found in `doc/codec2.pdf`.
+
 ## Programs
 
 + See `demo` directory for simple examples of using Codec and the FreeDV API.
@@ -138,7 +142,7 @@ CTest is used as a test framework, with support from [GNU Octave](https://www.gn
 
 1. Install GNU Octave and libraries on Ubuntu with:
    ```
-   sudo apt install octave octave-common octave-signal liboctave-dev gnuplot python3-numpy sox valgrind clang-format
+   sudo apt install octave octave-common octave-signal liboctave-dev gnuplot python3-numpy sox valgrind clang-format texmaker texlive-bibtex-extra texlive-science
    ```
 1. To build and run the tests:
    ```
@@ -180,6 +184,7 @@ CTest is used as a test framework, with support from [GNU Octave](https://www.gn
 ```
 cmake       - cmake support files
 demo        - Simple Codec 2 and FreeDv API demo applications
+doc         - documentation
 octave      - Octave scripts used to support ctests
 src         - C source code for Codec 2, FDMDV modem, COHPSK modem, FreeDV API
 raw         - speech files in raw format (16 bits signed linear 8 kHz)
diff --git a/doc/Makefile b/doc/Makefile
index 1eaab1b..606d05f 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,7 +1,7 @@
 # Makefile for codec2.pdf
 #
 # usage:
-#   Build codec2 with -DDUMP (see README)
+#   Build codec2 with -DUNITEST=1 (see README)
 #   cd ~/codec2/doc
 #   make
 
@@ -9,14 +9,16 @@
 # defaults below. Need to run cmake with -DDUMP
 
 CODEC2_SRC ?= $(HOME)/codec2
-CODEC2_BINARY ?= $(HOME)/codec2/build_linux/src
+CODEC2_BINARY ?= $(HOME)/codec2/build_linux
 
-PATH := $(PATH):$(CODEC2_BINARY)
+PATH := $(PATH):$(CODEC2_BINARY)/src
 
 DOCNAME := codec2
 PLOT_FILES := hts2a_37_sn.tex hts2a_37_sw.tex hts2a_37_lpc_lsp.tex hts2a_37_lpc_pf.tex
 
-$(DOCNAME).pdf: $(PLOT_FILES) $(DOCNAME).tex $(DOCNAME)_refs.bib
+# For automated tests we always want to build the PDF, despite codec2.pdf existing in the repo
+.PHONY: pdf
+pdf: $(PLOT_FILES) $(DOCNAME).tex $(DOCNAME)_refs.bib
 	pdflatex $(DOCNAME).tex
 	bibtex $(DOCNAME).aux
 	pdflatex $(DOCNAME).tex
@@ -29,4 +31,4 @@ $(PLOT_FILES):
 
 .PHONY: clean
 clean:
-	rm *.blg *.bbl *.aux *.log $(DOCNAME).pdf
\ No newline at end of file
+	rm -f *.blg *.bbl *.aux *.log *.out $(DOCNAME).pdf hts2a*
\ No newline at end of file
diff --git a/doc/codec2.pdf b/doc/codec2.pdf
index ae71c92..ac2e63c 100644
--- a/doc/codec2.pdf
+++ b/doc/codec2.pdf