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diff --git a/cras/src/server/cras_dsp_pipeline.h b/cras/src/server/cras_dsp_pipeline.h
deleted file mode 100644
index 1a5a85a7..00000000
--- a/cras/src/server/cras_dsp_pipeline.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef CRAS_DSP_PIPELINE_H_
-#define CRAS_DSP_PIPELINE_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-
-#include "dumper.h"
-#include "cras_audio_format.h"
-#include "cras_dsp_ini.h"
-#include "cras_dsp_module.h"
-
-/* These are the functions to create and use dsp pipelines. A dsp
- * pipeline is a collection of dsp plugins that process audio
- * data. The plugins and their connections are specified in an ini
- * file. Before using the pipeline, we need to instantiate the
- * pipeline by giving an audio sampling rate. Then we get the pointers
- * to the input buffers, fill the input data, run the pipeline, and
- * obtain the processed data from the output buffers.
- */
-
-/* The maximum number of samples that cras_dsp_pipeline_run() can
- * accept. Beyond this the user should break the samples into several
- * blocks and call cras_dsp_pipeline_run() several times.
- */
-#define DSP_BUFFER_SIZE 2048
-
-struct pipeline;
-
-/* Creates a pipeline from the given ini file.
- * Args:
- *    ini - The ini file the pipeline is created from.
- *    env - The expression environment for evaluating disable expression.
- *    purpose - The purpose of the pipeline, "playback" or "capture".
- * Returns:
- *    A pointer to the pipeline, or NULL if the creation fails.
- */
-struct pipeline *cras_dsp_pipeline_create(struct ini *ini,
-					  struct cras_expr_env *env,
-					  const char *purpose);
-
-/* Frees the resources used by the pipeline. */
-void cras_dsp_pipeline_free(struct pipeline *pipeline);
-
-/* Loads the implementation of the plugins in the pipeline (from
- * shared libraries). Must be called before
- * cras_dsp_pipeline_instantiate().
- * Returns:
- *    0 if successful. -1 otherwise.
- */
-int cras_dsp_pipeline_load(struct pipeline *pipeline);
-
-/* Instantiates the pipeline given the sampling rate.
- * Args:
- *    sample_rate - The audio sampling rate.
- * Returns:
- *    0 if successful. -1 otherwise.
- */
-int cras_dsp_pipeline_instantiate(struct pipeline *pipeline, int sample_rate);
-
-/* The counterpart of cras_dsp_pipeline_instantiate(). To change the
- * sampling rate, this must be called before another call to
- * cras_dsp_pipeline_instantiate(). */
-void cras_dsp_pipeline_deinstantiate(struct pipeline *pipeline);
-
-/* Returns the buffering delay of the pipeline. This should only be called
- * after a pipeline has been instantiated.
- * Returns:
- *    The buffering delay in frames.
- */
-int cras_dsp_pipeline_get_delay(struct pipeline *pipeline);
-
-/* Returns the number of input/output audio channels this pipeline expects */
-int cras_dsp_pipeline_get_num_input_channels(struct pipeline *pipeline);
-int cras_dsp_pipeline_get_num_output_channels(struct pipeline *pipeline);
-
-/* Returns the pointer to the input buffer for a channel of this
- * pipeline. The size of the buffer is DSP_BUFFER_SIZE samples, and
- * the number of samples acually used should be passed to
- * cras_dsp_pipeline_run().
- *
- * Args:
- *    index - The channel index. The valid value is 0 to
- *            cras_dsp_pipeline_get_num_channels() - 1.
- */
-float *cras_dsp_pipeline_get_source_buffer(struct pipeline *pipeline,
-					   int index);
-
-/* Returns the pointer to the output buffer for a channel of this
- * pipeline. The size of the buffer is DSP_BUFFER_SIZE samples.
- *
- * Args:
- *    index - The channel index. The valid value is 0 to
- *            cras_dsp_pipeline_get_num_channels() - 1.
- */
-float *cras_dsp_pipeline_get_sink_buffer(struct pipeline *pipeline, int index);
-
-/*
- * Connects |ext_module| to the sink of given dsp pipeline.
- * Args:
- *    pipeline - The pipeline whose sink should connect to ext_module.
- *    ext_module - The external dsp module to connect to pipeline sink.
- */
-void cras_dsp_pipeline_set_sink_ext_module(struct pipeline *pipeline,
-					   struct ext_dsp_module *ext_module);
-
-/* Returns the number of internal audio buffers allocated by the
- * pipeline. This is used by the unit test only */
-int cras_dsp_pipeline_get_peak_audio_buffers(struct pipeline *pipeline);
-
-/* Returns the sampling rate passed by cras_dsp_pipeline_instantiate(),
- * or 0 if is has not been called */
-int cras_dsp_pipeline_get_sample_rate(struct pipeline *pipeline);
-
-/* Gets the dsp ini that corresponds to the pipeline. */
-struct ini *cras_dsp_pipeline_get_ini(struct pipeline *pipeline);
-
-/* Processes a block of audio samples. sample_count should be no more
- * than DSP_BUFFER_SIZE */
-void cras_dsp_pipeline_run(struct pipeline *pipeline, int sample_count);
-
-/* Add a statistic of running time for the pipeline.
- *
- * Args:
- *    time_delta - The time it takes to run the pipeline and any other
- *                 preprocessing and postprocessing.
- *    samples - The number of audio sample frames processed.
- */
-void cras_dsp_pipeline_add_statistic(struct pipeline *pipeline,
-				     const struct timespec *time_delta,
-				     int samples);
-
-/* Runs the specified pipeline across the given interleaved buffer in place.
- * Args:
- *    pipeline - The pipeline to run.
- *    buf - The samples to be processed, interleaved.
- *    format - Sample format of the buffer.
- *    frames - the numver of samples in the buffer.
- * Returns:
- *    Negative code if error, otherwise 0.
- */
-int cras_dsp_pipeline_apply(struct pipeline *pipeline, uint8_t *buf,
-			    snd_pcm_format_t format, unsigned int frames);
-
-/* Dumps the current state of the pipeline. For debugging only */
-void cras_dsp_pipeline_dump(struct dumper *d, struct pipeline *pipeline);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* CRAS_DSP_PIPELINE_H_ */