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// Copyright (c) 2013 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.
#include <gtest/gtest.h>
#include <vector>
extern "C" {
// For static function test.
#include "cras_alsa_helpers.c"
}
static int snd_pcm_sw_params_set_tstamp_type_called;
static int snd_pcm_sw_params_set_tstamp_mode_called;
static snd_pcm_uframes_t snd_pcm_htimestamp_avail_ret_val;
static timespec snd_pcm_htimestamp_tstamp_ret_val;
static std::vector<int> snd_pcm_sw_params_ret_vals;
static void ResetStubData() {
snd_pcm_sw_params_set_tstamp_type_called = 0;
snd_pcm_sw_params_set_tstamp_mode_called = 0;
snd_pcm_htimestamp_avail_ret_val = 0;
snd_pcm_htimestamp_tstamp_ret_val.tv_sec = 0;
snd_pcm_htimestamp_tstamp_ret_val.tv_nsec = 0;
snd_pcm_sw_params_ret_vals.clear();
}
namespace {
static snd_pcm_chmap_query_t* create_chmap_cap(snd_pcm_chmap_type type,
size_t channels) {
snd_pcm_chmap_query_t* c;
c = (snd_pcm_chmap_query_t*)calloc(channels + 2, sizeof(int));
c->type = type;
c->map.channels = channels;
return c;
}
TEST(AlsaHelper, MatchChannelMapCapabilityStereo) {
snd_pcm_chmap_query_t** caps;
snd_pcm_chmap_query_t* c;
struct cras_audio_format* fmt;
caps = (snd_pcm_chmap_query_t**)calloc(4, sizeof(*caps));
/* Layout (CRAS_CH_RL, CRAS_CH_RR) corresponds to
* ALSA channel map (5, 6)
*/
int8_t channel_layout[CRAS_CH_MAX] = {-1, -1, 0, 1, -1, -1,
-1, -1, -1, -1, -1};
fmt = cras_audio_format_create(SND_PCM_FORMAT_S16_LE, 44100, 2);
cras_audio_format_set_channel_layout(fmt, channel_layout);
/* Create a list of capabilities */
c = create_chmap_cap(SND_CHMAP_TYPE_FIXED, 3);
c->map.pos[0] = 3;
c->map.pos[1] = 4;
c->map.pos[2] = 5;
caps[0] = c;
c = create_chmap_cap(SND_CHMAP_TYPE_VAR, 2);
c->map.pos[0] = 5;
c->map.pos[1] = 6;
caps[1] = c;
c = create_chmap_cap(SND_CHMAP_TYPE_VAR, 2);
c->map.pos[0] = 9;
c->map.pos[1] = 10;
caps[2] = c;
caps[3] = NULL;
/* Test if there's a cap matches fmt */
c = cras_chmap_caps_match(caps, fmt);
ASSERT_NE((void*)NULL, c);
caps[1]->map.pos[0] = 5;
caps[1]->map.pos[1] = 7;
c = cras_chmap_caps_match(caps, fmt);
ASSERT_EQ((void*)NULL, c);
free(caps[0]);
free(caps[1]);
free(caps[2]);
free(caps[3]);
free(caps);
cras_audio_format_destroy(fmt);
}
TEST(AlsaHelper, MatchChannelMapCapability51) {
snd_pcm_chmap_query_t** caps = NULL;
snd_pcm_chmap_query_t* c = NULL;
struct cras_audio_format* fmt;
caps = (snd_pcm_chmap_query_t**)calloc(4, sizeof(*caps));
/* Layout (CRAS_CH_FL, CRAS_CH_FR, CRAS_CH_RL, CRAS_CH_RR, CRAS_CH_FC)
* corresponds to ALSA channel map (3, 4, 5, 6, 7)
*/
int8_t channel_layout[CRAS_CH_MAX] = {0, 1, 2, 3, 4, 5, -1, -1, -1, -1, -1};
fmt = cras_audio_format_create(SND_PCM_FORMAT_S16_LE, 44100, 6);
cras_audio_format_set_channel_layout(fmt, channel_layout);
/* Create a list of capabilities */
c = create_chmap_cap(SND_CHMAP_TYPE_FIXED, 6);
c->map.pos[0] = 3;
c->map.pos[1] = 4;
c->map.pos[2] = 5;
c->map.pos[3] = 6;
c->map.pos[4] = 7;
c->map.pos[5] = 8;
caps[0] = c;
c = create_chmap_cap(SND_CHMAP_TYPE_VAR, 2);
c->map.pos[0] = 6;
c->map.pos[1] = 4;
caps[1] = c;
c = create_chmap_cap(SND_CHMAP_TYPE_VAR, 6);
c->map.pos[0] = 9;
c->map.pos[1] = 10;
c->map.pos[2] = 5;
c->map.pos[3] = 6;
c->map.pos[4] = 7;
c->map.pos[5] = 8;
caps[2] = c;
caps[3] = NULL;
/* Test if there's a cap matches fmt */
c = cras_chmap_caps_match(caps, fmt);
ASSERT_NE((void*)NULL, c);
caps[0]->map.pos[0] = 7;
caps[0]->map.pos[1] = 8;
caps[0]->map.pos[4] = 3;
caps[0]->map.pos[5] = 4;
c = cras_chmap_caps_match(caps, fmt);
ASSERT_EQ((void*)NULL, c);
caps[0]->type = SND_CHMAP_TYPE_PAIRED;
c = cras_chmap_caps_match(caps, fmt);
ASSERT_NE((void*)NULL, c);
caps[0]->map.pos[0] = 8;
caps[0]->map.pos[1] = 7;
c = cras_chmap_caps_match(caps, fmt);
ASSERT_EQ((void*)NULL, c);
caps[0]->type = SND_CHMAP_TYPE_VAR;
c = cras_chmap_caps_match(caps, fmt);
ASSERT_NE((void*)NULL, c);
free(caps[0]);
free(caps[1]);
free(caps[2]);
free(caps[3]);
free(caps);
cras_audio_format_destroy(fmt);
}
TEST(AlsaHelper, Htimestamp) {
snd_pcm_t* mock_handle = reinterpret_cast<snd_pcm_t*>(0x1);
snd_pcm_uframes_t used;
snd_pcm_uframes_t severe_underrun_frames = 480;
struct timespec tstamp;
const char* dev_name = "dev_name";
ResetStubData();
tstamp.tv_sec = 0;
tstamp.tv_nsec = 0;
snd_pcm_htimestamp_avail_ret_val = 20000;
snd_pcm_htimestamp_tstamp_ret_val.tv_sec = 10;
snd_pcm_htimestamp_tstamp_ret_val.tv_nsec = 10000;
cras_alsa_get_avail_frames(mock_handle, 48000, severe_underrun_frames,
dev_name, &used, &tstamp);
EXPECT_EQ(used, snd_pcm_htimestamp_avail_ret_val);
EXPECT_EQ(tstamp.tv_sec, snd_pcm_htimestamp_tstamp_ret_val.tv_sec);
EXPECT_EQ(tstamp.tv_nsec, snd_pcm_htimestamp_tstamp_ret_val.tv_nsec);
}
TEST(AlsaHelper, GetAvailFramesSevereUnderrun) {
snd_pcm_t* mock_handle = reinterpret_cast<snd_pcm_t*>(0x1);
snd_pcm_uframes_t avail;
snd_pcm_uframes_t severe_underrun_frames = 480;
snd_pcm_uframes_t buffer_size = 48000;
struct timespec tstamp;
int rc;
const char* dev_name = "dev_name";
ResetStubData();
snd_pcm_htimestamp_avail_ret_val = buffer_size + severe_underrun_frames + 1;
rc = cras_alsa_get_avail_frames(mock_handle, buffer_size,
severe_underrun_frames, dev_name, &avail,
&tstamp);
// Returns -EPIPE when severe underrun happens.
EXPECT_EQ(rc, -EPIPE);
ResetStubData();
snd_pcm_htimestamp_avail_ret_val = buffer_size + severe_underrun_frames;
rc = cras_alsa_get_avail_frames(mock_handle, buffer_size,
severe_underrun_frames, dev_name, &avail,
&tstamp);
// Underrun which is not severe enough will be masked.
// avail will be adjusted to buffer_size.
EXPECT_EQ(avail, buffer_size);
EXPECT_EQ(rc, 0);
ResetStubData();
snd_pcm_htimestamp_avail_ret_val = buffer_size - 1;
rc = cras_alsa_get_avail_frames(mock_handle, buffer_size,
severe_underrun_frames, dev_name, &avail,
&tstamp);
// When avail < buffer_size, there is no underrun.
EXPECT_EQ(avail, buffer_size - 1);
EXPECT_EQ(rc, 0);
}
} // namespace
extern "C" {
int snd_pcm_sw_params_current(snd_pcm_t* pcm, snd_pcm_sw_params_t* params) {
return 0;
}
int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t* params,
snd_pcm_uframes_t* val) {
return 0;
}
int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t* pcm,
snd_pcm_sw_params_t* params,
snd_pcm_uframes_t val) {
return 0;
}
int snd_pcm_sw_params_set_start_threshold(snd_pcm_t* pcm,
snd_pcm_sw_params_t* params,
snd_pcm_uframes_t val) {
return 0;
}
int snd_pcm_sw_params_set_period_event(snd_pcm_t* pcm,
snd_pcm_sw_params_t* params,
int val) {
return 0;
}
int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t* pcm,
snd_pcm_sw_params_t* params,
snd_pcm_tstamp_t val) {
snd_pcm_sw_params_set_tstamp_mode_called++;
return 0;
}
int snd_pcm_sw_params_set_tstamp_type(snd_pcm_t* pcm,
snd_pcm_sw_params_t* params,
snd_pcm_tstamp_type_t val) {
snd_pcm_sw_params_set_tstamp_type_called++;
return 0;
}
int snd_pcm_sw_params(snd_pcm_t* pcm, snd_pcm_sw_params_t* params) {
int rc;
if (snd_pcm_sw_params_ret_vals.size() == 0)
return 0;
rc = snd_pcm_sw_params_ret_vals.back();
snd_pcm_sw_params_ret_vals.pop_back();
return rc;
}
snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t* pcm) {
return snd_pcm_htimestamp_avail_ret_val;
}
int snd_pcm_htimestamp(snd_pcm_t* pcm,
snd_pcm_uframes_t* avail,
snd_htimestamp_t* tstamp) {
*avail = snd_pcm_htimestamp_avail_ret_val;
*tstamp = snd_pcm_htimestamp_tstamp_ret_val;
return 0;
}
}
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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