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author | ben <ben@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-07-31 17:39:17 +0000 |
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committer | ben <ben@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-07-31 17:39:17 +0000 |
commit | 49867bd432352d19172ab26cf873bd5651e69e25 (patch) | |
tree | c2d419bb4f81564036baa12832a44b8aac27c6d1 /libmpdemux/ai_alsa.c | |
parent | d3b998da64927403879ad588287c178f86b7c849 (diff) | |
download | mpv-49867bd432352d19172ab26cf873bd5651e69e25.tar.bz2 mpv-49867bd432352d19172ab26cf873bd5651e69e25.tar.xz |
introduce new 'stream' directory for all stream layer related components and split them from libmpdemux
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19277 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpdemux/ai_alsa.c')
-rw-r--r-- | libmpdemux/ai_alsa.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/libmpdemux/ai_alsa.c b/libmpdemux/ai_alsa.c deleted file mode 100644 index a1468bed09..0000000000 --- a/libmpdemux/ai_alsa.c +++ /dev/null @@ -1,166 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <sys/time.h> - -#include "config.h" - -#include <alsa/asoundlib.h> -#include "audio_in.h" -#include "mp_msg.h" -#include "help_mp.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(¶ms); - snd_pcm_sw_params_alloca(&swparams); - - err = snd_pcm_hw_params_any(ai->alsa.handle, params); - if (err < 0) { - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_PcmBrokenConfig); - return -1; - } - err = snd_pcm_hw_params_set_access(ai->alsa.handle, params, - SND_PCM_ACCESS_RW_INTERLEAVED); - if (err < 0) { - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_UnavailableAccessType); - return -1; - } - err = snd_pcm_hw_params_set_format(ai->alsa.handle, params, SND_PCM_FORMAT_S16_LE); - if (err < 0) { - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_UnavailableSampleFmt); - 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_UnavailableChanCount, - 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_CannotInstallHWParams); - 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_PeriodEqualsBufferSize, 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_CannotInstallSWParams); - 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_ErrorOpeningAudio, 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_AlsaStatusError, 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_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_AlsaXRUN, - diff.tv_sec * 1000 + diff.tv_usec / 1000.0); - if (mp_msg_test(MSGT_TV, MSGL_V)) { - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_AlsaStatus); - snd_pcm_status_dump(status, ai->alsa.log); - } - if ((res = snd_pcm_prepare(ai->alsa.handle))<0) { - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_AlsaXRUNPrepareError, snd_strerror(res)); - return -1; - } - return 0; /* ok, data should be accepted again */ - } - mp_msg(MSGT_TV, MSGL_ERR, MSGTR_MPDEMUX_AIALSA_AlsaReadWriteError); - return -1; -} |