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-rw-r--r--stream/ai_alsa.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/stream/ai_alsa.c b/stream/ai_alsa.c
deleted file mode 100644
index c5e2f3f623..0000000000
--- a/stream/ai_alsa.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <alloca.h>
-
-#include "config.h"
-
-#include <alsa/asoundlib.h>
-#include "audio_in.h"
-#include "mp_msg.h"
-
-int ai_alsa_setup(audio_in_t *ai)
-{
- snd_pcm_hw_params_t *params;
- snd_pcm_sw_params_t *swparams;
- int buffer_size;
- int err;
- unsigned int rate;
-
- snd_pcm_hw_params_alloca(&params);
- snd_pcm_sw_params_alloca(&swparams);
-
- err = snd_pcm_hw_params_any(ai->alsa.handle, params);
- if (err < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Broken configuration for this PCM: no configurations available.\n");
- return -1;
- }
- err = snd_pcm_hw_params_set_access(ai->alsa.handle, params,
- SND_PCM_ACCESS_RW_INTERLEAVED);
- if (err < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Access type not available.\n");
- return -1;
- }
- err = snd_pcm_hw_params_set_format(ai->alsa.handle, params, SND_PCM_FORMAT_S16_LE);
- if (err < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Sample format not available.\n");
- return -1;
- }
- err = snd_pcm_hw_params_set_channels(ai->alsa.handle, params, ai->req_channels);
- if (err < 0) {
- ai->channels = snd_pcm_hw_params_get_channels(params);
- mp_tmsg(MSGT_TV, MSGL_ERR, "Channel count not available - reverting to default: %d\n",
- ai->channels);
- } else {
- ai->channels = ai->req_channels;
- }
-
- err = snd_pcm_hw_params_set_rate_near(ai->alsa.handle, params, ai->req_samplerate, 0);
- assert(err >= 0);
- rate = err;
- ai->samplerate = rate;
-
- ai->alsa.buffer_time = 1000000;
- ai->alsa.buffer_time = snd_pcm_hw_params_set_buffer_time_near(ai->alsa.handle, params,
- ai->alsa.buffer_time, 0);
- assert(ai->alsa.buffer_time >= 0);
- ai->alsa.period_time = ai->alsa.buffer_time / 4;
- ai->alsa.period_time = snd_pcm_hw_params_set_period_time_near(ai->alsa.handle, params,
- ai->alsa.period_time, 0);
- assert(ai->alsa.period_time >= 0);
- err = snd_pcm_hw_params(ai->alsa.handle, params);
- if (err < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to install hardware parameters: %s");
- snd_pcm_hw_params_dump(params, ai->alsa.log);
- return -1;
- }
- ai->alsa.chunk_size = snd_pcm_hw_params_get_period_size(params, 0);
- buffer_size = snd_pcm_hw_params_get_buffer_size(params);
- if (ai->alsa.chunk_size == buffer_size) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Can't use period equal to buffer size (%u == %lu)\n", ai->alsa.chunk_size, (long)buffer_size);
- return -1;
- }
- snd_pcm_sw_params_current(ai->alsa.handle, swparams);
- err = snd_pcm_sw_params_set_sleep_min(ai->alsa.handle, swparams,0);
- assert(err >= 0);
- err = snd_pcm_sw_params_set_avail_min(ai->alsa.handle, swparams, ai->alsa.chunk_size);
- assert(err >= 0);
-
- err = snd_pcm_sw_params_set_start_threshold(ai->alsa.handle, swparams, 0);
- assert(err >= 0);
- err = snd_pcm_sw_params_set_stop_threshold(ai->alsa.handle, swparams, buffer_size);
- assert(err >= 0);
-
- assert(err >= 0);
- if (snd_pcm_sw_params(ai->alsa.handle, swparams) < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to install software parameters:\n");
- snd_pcm_sw_params_dump(swparams, ai->alsa.log);
- return -1;
- }
-
- if (mp_msg_test(MSGT_TV, MSGL_V)) {
- snd_pcm_dump(ai->alsa.handle, ai->alsa.log);
- }
-
- ai->alsa.bits_per_sample = snd_pcm_format_physical_width(SND_PCM_FORMAT_S16_LE);
- ai->alsa.bits_per_frame = ai->alsa.bits_per_sample * ai->channels;
- ai->blocksize = ai->alsa.chunk_size * ai->alsa.bits_per_frame / 8;
- ai->samplesize = ai->alsa.bits_per_sample;
- ai->bytes_per_sample = ai->alsa.bits_per_sample/8;
-
- return 0;
-}
-
-int ai_alsa_init(audio_in_t *ai)
-{
- int err;
-
- err = snd_pcm_open(&ai->alsa.handle, ai->alsa.device, SND_PCM_STREAM_CAPTURE, 0);
- if (err < 0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "Error opening audio: %s\n", snd_strerror(err));
- return -1;
- }
-
- err = snd_output_stdio_attach(&ai->alsa.log, stderr, 0);
-
- if (err < 0) {
- return -1;
- }
-
- err = ai_alsa_setup(ai);
-
- return err;
-}
-
-#ifndef timersub
-#define timersub(a, b, result) \
-do { \
- (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
- (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
- if ((result)->tv_usec < 0) { \
- --(result)->tv_sec; \
- (result)->tv_usec += 1000000; \
- } \
-} while (0)
-#endif
-
-int ai_alsa_xrun(audio_in_t *ai)
-{
- snd_pcm_status_t *status;
- int res;
-
- snd_pcm_status_alloca(&status);
- if ((res = snd_pcm_status(ai->alsa.handle, status))<0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "ALSA status error: %s", snd_strerror(res));
- return -1;
- }
- if (snd_pcm_status_get_state(status) == SND_PCM_STATE_XRUN) {
- struct timeval now, diff, tstamp;
- gettimeofday(&now, 0);
- snd_pcm_status_get_trigger_tstamp(status, &tstamp);
- timersub(&now, &tstamp, &diff);
- mp_tmsg(MSGT_TV, MSGL_ERR, "ALSA xrun!!! (at least %.3f ms long)\n",
- diff.tv_sec * 1000 + diff.tv_usec / 1000.0);
- if (mp_msg_test(MSGT_TV, MSGL_V)) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "ALSA Status:\n");
- snd_pcm_status_dump(status, ai->alsa.log);
- }
- if ((res = snd_pcm_prepare(ai->alsa.handle))<0) {
- mp_tmsg(MSGT_TV, MSGL_ERR, "ALSA xrun: prepare error: %s", snd_strerror(res));
- return -1;
- }
- return 0; /* ok, data should be accepted again */
- }
- mp_tmsg(MSGT_TV, MSGL_ERR, "ALSA read/write error");
- return -1;
-}