Awesome

standard midi file reader for teensy

c++ standard midi file type-0 reader built for teensy (32 bit arm cortex m7 thumb arch)

usage:

midireader reader;
reader.open("1234.mid");
double microsPerTick = reader.get_microseconds_per_tick();
int totalNumNotesRead = 0;
for (int t = 0; t < reader.getNumTracks(); t++) {
    reader.setTrackNumber(t);
    int i = 0;
    long totalTicks = 0, microseconds = 0;
    smfmidimessage *message;
    while ((message = reader.read()) != nullptr) {
        totalTicks += message->delta_ticks;
        microseconds += microsPerTick * message->delta_ticks;
        switch(message->getMessageType()) {
            case smftype_channelvoicemessage : {
                smfchannelvoicemessage *channelvoicemessage = (smfchannelvoicemessage *)message;
                printf("%5d: [%2d,%4d]: %6d: delta: %3d\tstatus: 0x%2x\tdata1: %3d\tdata2: %3d\tdata3: %2d\t\n",
                    microseconds/1000,
                    t,
                    i,
                    totalTicks,
                    channelvoicemessage->delta_ticks,
                    channelvoicemessage->status,
                    channelvoicemessage->data1,
                    channelvoicemessage->data2,
                    channelvoicemessage->data3);
                break; 
            }

            case smftype_settempomessage : {
                printf("tempo change: %f\n", ((smfsettempomessage *)message)->getTempo());
                break;
            }

            default: 
                break;
        }

        delete message;
        i++;
    }
    totalNumNotesRead += i;
}

dependencies:

src (32 bit arm cortex m7 thumb arch)

tests (amd64 arch)

teensy_x86_stubs

git clone https://github.com/newdigate/teensy-x86-stubs.git
cd teensy-x86-stubs
mkdir cmake-build-debug
cd cmake-build-debug
cmake .. 
sudo make install

libboost-test-dev

sudo apt-get update && sudo apt-get install -yq libboost-test-dev

compile example for teensy:

download gcc-arm-none-eabi
clone src dependencies into a directory (in this case /Users/me/git)

mkdir /Users/me/git
cd /Users/me/git
git clone https://github.com/PaulStoffregen/cores
git clone https://github.com/greiman/SdFat
git clone -b Juse_Use_SdFat https://github.com/PaulStoffregen/SD
git clone https://github.com/PaulStoffregen/SPI

update COMPILERPATH, DEPSPATH in cmake/toolchains/teensy41.toolchain.cmake:

set(COMPILERPATH "/Applications/ARM/bin/")   # should point to folder with GCC-ARM-NONE-EABI executables
set(DEPSPATH "/Users/me/git")                # path with 4 x src dependencies

run these commands in a terminal from the root repository directory

mkdir cmake-build-debug
cd cmake-build-debug
cmake .. -DCMAKE_TOOLCHAIN_FILE:FILEPATH="../cmake/toolchains/teensy41.toolchain.cmake"
make

compile and install on linux

clone:

git clone https://github.com/newdigate/midi-smf-reader.git
cd midi-smf-reader

compile src, tests

mkdir cmake-build-debug
cd cmake-build-debug
cmake .. 
make

run tests
```
test/midi_smf_reader_test
```
install library for linux:
```
sudo make install
```
uninstall library for linux:
```
sudo make uninstall
```

todo:

~~read tempo / key changes~~ done

credits

Don't Run Unit Tests on the Arduino Device or Emulator

stackoverflow 11437456
includes code from IronSavior/dsm2_tx

cmake uninstaller

gist.github.com/royvandam/3033428

license

Unless specified in source code file, all code is MIT license.

Awesome

standard midi file reader for teensy

contents:

usage:

dependencies:

compile example for teensy:

compile and install on linux

todo:

credits

Don't Run Unit Tests on the Arduino Device or Emulator

cmake uninstaller

license