Merge "hal: parse wav header based on chunksize" into audio-userspace.lnx.2.2-dev

#define ID_DATA 0x61746164

#define FORMAT_PCM 1

#define WAV_HEADER_LENGTH_MAX 46

static thread_data_t *ethread_data = NULL;

static cmd_data_t cmd_data;

    printf("                                          -> sound effect equalizer enabled\n\n");

}

static int get_wav_header_length (FILE* file_stream)

{

    int subchunk_size = 0, wav_header_len = 0;

    fseek(file_stream, 16, SEEK_SET);

    if(fread(&subchunk_size, 4, 1, file_stream) != 1) {

        fprintf(stdout, "Unable to read subchunk:\n");

        exit (1);

    }

    if(subchunk_size < 16) {

        fprintf(stdout, "This is not a valid wav file \n");

    } else {

          switch (subchunk_size) {

          case 16:

              fprintf(stdout, "44-byte wav header \n");

              wav_header_len = 44;

              break;

          case 18:

              fprintf(stdout, "46-byte wav header \n");

              wav_header_len = 46;

              break;

          default:

              fprintf(stdout, "Header contains extra data and is larger than 46 bytes: subchunk_size=%d \n", subchunk_size);

              wav_header_len = subchunk_size;

              break;

          }

    }

    return wav_header_len;

}

int main(int argc, char* argv[]) {

    FILE *file_stream = NULL;

    char header[44] = {0};

    char header[WAV_HEADER_LENGTH_MAX] = {0};

    char* filename = nullptr;

    qahw_module_handle_t *qahw_mod_handle = NULL;

    const char *mod_name = "audio.primary";

    qahw_stream_handle_t* out_handle = nullptr;

    int rc = 0;

    int rc = 0, wav_header_len = 0;

    char *kvpair_values = NULL;

    char kvpair[1000] = {0};

    struct proxy_data proxy_params;

            /*

             * Read the wave header

             */

            rc = fread (header, 44 , 1, file_stream);

            if((wav_header_len = get_wav_header_length(file_stream)) <= 0) {

                fprintf(stdout, "wav header length is invalid:%d\n", wav_header_len);

                exit(1);

            }

            fseek(file_stream, 0, SEEK_SET);

            rc = fread (header, wav_header_len, 1, file_stream);

            if (rc != 1) {

               fprintf(stdout, "Error .Fread failed\n");

               exit(0);