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https://github.com/mpv-player/mpv
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ao_alsa: more reformat
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wm4
parent
9afad5180c
commit
c6076b5de5
@ -490,152 +490,147 @@ static int init(int rate_hz, const struct mp_chmap *channels, int format,
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alsa_can_pause = 1;
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if (!alsa_handler) {
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int open_mode = block ? 0 : SND_PCM_NONBLOCK;
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int isac3 = AF_FORMAT_IS_IEC61937(format);
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//modes = 0, SND_PCM_NONBLOCK, SND_PCM_ASYNC
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err = try_open_device(alsa_device, open_mode, isac3);
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if (err < 0) {
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if (err != -EBUSY && !block) {
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mp_tmsg(MSGT_AO, MSGL_INFO, "[AO_ALSA] Open in nonblock-mode "
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"failed, trying to open in block-mode.\n");
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err = try_open_device(alsa_device, 0, isac3);
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}
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CHECK_ALSA_ERROR("Playback open error");
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int open_mode = block ? 0 : SND_PCM_NONBLOCK;
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int isac3 = AF_FORMAT_IS_IEC61937(format);
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//modes = 0, SND_PCM_NONBLOCK, SND_PCM_ASYNC
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err = try_open_device(alsa_device, open_mode, isac3);
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if (err < 0) {
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if (err != -EBUSY && !block) {
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mp_tmsg(MSGT_AO, MSGL_INFO, "[AO_ALSA] Open in nonblock-mode "
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"failed, trying to open in block-mode.\n");
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err = try_open_device(alsa_device, 0, isac3);
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}
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CHECK_ALSA_ERROR("Playback open error");
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}
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err = snd_pcm_nonblock(alsa_handler, 0);
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if (err < 0) {
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mp_tmsg(MSGT_AO, MSGL_ERR,
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"[AL_ALSA] Error setting block-mode %s.\n",
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snd_strerror(err));
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} else {
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: pcm opened in blocking mode\n");
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}
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err = snd_pcm_nonblock(alsa_handler, 0);
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if (err < 0) {
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mp_tmsg(MSGT_AO, MSGL_ERR,
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"[AL_ALSA] Error setting block-mode %s.\n",
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snd_strerror(err));
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} else {
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: pcm opened in blocking mode\n");
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}
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snd_pcm_hw_params_t *alsa_hwparams;
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snd_pcm_sw_params_t *alsa_swparams;
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snd_pcm_hw_params_t *alsa_hwparams;
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snd_pcm_sw_params_t *alsa_swparams;
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snd_pcm_hw_params_alloca(&alsa_hwparams);
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snd_pcm_sw_params_alloca(&alsa_swparams);
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snd_pcm_hw_params_alloca(&alsa_hwparams);
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snd_pcm_sw_params_alloca(&alsa_swparams);
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// setting hw-parameters
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err = snd_pcm_hw_params_any(alsa_handler, alsa_hwparams);
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CHECK_ALSA_ERROR("Unable to get initial parameters");
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// setting hw-parameters
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err = snd_pcm_hw_params_any(alsa_handler, alsa_hwparams);
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CHECK_ALSA_ERROR("Unable to get initial parameters");
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err = snd_pcm_hw_params_set_access
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(alsa_handler, alsa_hwparams, SND_PCM_ACCESS_RW_INTERLEAVED);
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CHECK_ALSA_ERROR("Unable to set access type");
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err = snd_pcm_hw_params_set_access
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(alsa_handler, alsa_hwparams, SND_PCM_ACCESS_RW_INTERLEAVED);
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CHECK_ALSA_ERROR("Unable to set access type");
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/* workaround for nonsupported formats
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sets default format to S16_LE if the given formats aren't supported */
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err = snd_pcm_hw_params_test_format
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(alsa_handler, alsa_hwparams, alsa_format);
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if (err < 0) {
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mp_tmsg(MSGT_AO, MSGL_INFO, "[AO_ALSA] Format %s is not supported "
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"by hardware, trying default.\n", af_fmt2str_short(format));
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alsa_format = SND_PCM_FORMAT_S16_LE;
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if (AF_FORMAT_IS_AC3(ao_data.format))
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ao_data.format = AF_FORMAT_AC3_LE;
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else if (AF_FORMAT_IS_IEC61937(ao_data.format))
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ao_data.format = AF_FORMAT_IEC61937_LE;
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else
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ao_data.format = AF_FORMAT_S16_LE;
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}
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/* workaround for nonsupported formats
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sets default format to S16_LE if the given formats aren't supported */
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err = snd_pcm_hw_params_test_format
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(alsa_handler, alsa_hwparams, alsa_format);
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if (err < 0) {
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mp_tmsg(MSGT_AO, MSGL_INFO, "[AO_ALSA] Format %s is not supported "
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"by hardware, trying default.\n", af_fmt2str_short(format));
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alsa_format = SND_PCM_FORMAT_S16_LE;
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if (AF_FORMAT_IS_AC3(ao_data.format))
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ao_data.format = AF_FORMAT_AC3_LE;
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else if (AF_FORMAT_IS_IEC61937(ao_data.format))
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ao_data.format = AF_FORMAT_IEC61937_LE;
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else
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ao_data.format = AF_FORMAT_S16_LE;
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}
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err = snd_pcm_hw_params_set_format
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(alsa_handler, alsa_hwparams, alsa_format);
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CHECK_ALSA_ERROR("Unable to set format");
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err = snd_pcm_hw_params_set_format(alsa_handler, alsa_hwparams, alsa_format);
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CHECK_ALSA_ERROR("Unable to set format");
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int num_channels = ao_data.channels.num;
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err = snd_pcm_hw_params_set_channels_near
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(alsa_handler, alsa_hwparams, &num_channels);
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CHECK_ALSA_ERROR("Unable to set channels");
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int num_channels = ao_data.channels.num;
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err = snd_pcm_hw_params_set_channels_near
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(alsa_handler, alsa_hwparams, &num_channels);
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CHECK_ALSA_ERROR("Unable to set channels");
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mp_chmap_from_channels(&ao_data.channels, num_channels);
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if (!AF_FORMAT_IS_IEC61937(format))
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mp_chmap_reorder_to_alsa(&ao_data.channels);
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mp_chmap_from_channels(&ao_data.channels, num_channels);
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if (!AF_FORMAT_IS_IEC61937(format))
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mp_chmap_reorder_to_alsa(&ao_data.channels);
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/* workaround for buggy rate plugin (should be fixed in ALSA 1.0.11)
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prefer our own resampler, since that allows users to choose the resampler,
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even per file if desired */
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err = snd_pcm_hw_params_set_rate_resample
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(alsa_handler, alsa_hwparams, 0);
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CHECK_ALSA_ERROR("Unable to disable resampling");
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/* workaround for buggy rate plugin (should be fixed in ALSA 1.0.11)
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prefer our own resampler, since that allows users to choose the resampler,
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even per file if desired */
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err = snd_pcm_hw_params_set_rate_resample(alsa_handler, alsa_hwparams, 0);
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CHECK_ALSA_ERROR("Unable to disable resampling");
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err = snd_pcm_hw_params_set_rate_near
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(alsa_handler, alsa_hwparams, &ao_data.samplerate, NULL);
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CHECK_ALSA_ERROR("Unable to set samplerate-2");
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err = snd_pcm_hw_params_set_rate_near
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(alsa_handler, alsa_hwparams, &ao_data.samplerate, NULL);
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CHECK_ALSA_ERROR("Unable to set samplerate-2");
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bytes_per_sample = af_fmt2bits(ao_data.format) / 8;
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bytes_per_sample *= ao_data.channels.num;
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ao_data.bps = ao_data.samplerate * bytes_per_sample;
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bytes_per_sample = af_fmt2bits(ao_data.format) / 8;
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bytes_per_sample *= ao_data.channels.num;
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ao_data.bps = ao_data.samplerate * bytes_per_sample;
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err = snd_pcm_hw_params_set_buffer_time_near
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(alsa_handler, alsa_hwparams, &(unsigned int){BUFFER_TIME}, NULL);
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CHECK_ALSA_ERROR("Unable to set buffer time near");
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err = snd_pcm_hw_params_set_buffer_time_near
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(alsa_handler, alsa_hwparams, &(unsigned int){BUFFER_TIME}, NULL);
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CHECK_ALSA_ERROR("Unable to set buffer time near");
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err = snd_pcm_hw_params_set_periods_near
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(alsa_handler, alsa_hwparams, &(unsigned int){FRAGCOUNT}, NULL);
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CHECK_ALSA_ERROR("Unable to set periods");
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err = snd_pcm_hw_params_set_periods_near
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(alsa_handler, alsa_hwparams, &(unsigned int){FRAGCOUNT}, NULL);
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CHECK_ALSA_ERROR("Unable to set periods");
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/* finally install hardware parameters */
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err = snd_pcm_hw_params(alsa_handler, alsa_hwparams);
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CHECK_ALSA_ERROR("Unable to set hw-parameters");
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/* finally install hardware parameters */
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err = snd_pcm_hw_params(alsa_handler, alsa_hwparams);
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CHECK_ALSA_ERROR("Unable to set hw-parameters");
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// end setting hw-params
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// end setting hw-params
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// gets buffersize for control
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err = snd_pcm_hw_params_get_buffer_size(alsa_hwparams, &bufsize);
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CHECK_ALSA_ERROR("Unable to get buffersize");
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// gets buffersize for control
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err = snd_pcm_hw_params_get_buffer_size(alsa_hwparams, &bufsize);
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CHECK_ALSA_ERROR("Unable to get buffersize");
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ao_data.buffersize = bufsize * bytes_per_sample;
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: got buffersize=%i\n",
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ao_data.buffersize);
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ao_data.buffersize = bufsize * bytes_per_sample;
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: got buffersize=%i\n",
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ao_data.buffersize);
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err = snd_pcm_hw_params_get_period_size
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(alsa_hwparams, &chunk_size, NULL);
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CHECK_ALSA_ERROR("Unable to get period size");
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err = snd_pcm_hw_params_get_period_size(alsa_hwparams, &chunk_size, NULL);
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CHECK_ALSA_ERROR("Unable to get period size");
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: got period size %li\n", chunk_size);
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ao_data.outburst = chunk_size * bytes_per_sample;
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mp_msg(MSGT_AO, MSGL_V, "alsa-init: got period size %li\n", chunk_size);
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ao_data.outburst = chunk_size * bytes_per_sample;
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/* setting software parameters */
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err = snd_pcm_sw_params_current(alsa_handler, alsa_swparams);
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CHECK_ALSA_ERROR("Unable to get sw-parameters");
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/* setting software parameters */
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err = snd_pcm_sw_params_current(alsa_handler, alsa_swparams);
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CHECK_ALSA_ERROR("Unable to get sw-parameters");
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err = snd_pcm_sw_params_get_boundary(alsa_swparams, &boundary);
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CHECK_ALSA_ERROR("Unable to get boundary");
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err = snd_pcm_sw_params_get_boundary(alsa_swparams, &boundary);
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CHECK_ALSA_ERROR("Unable to get boundary");
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/* start playing when one period has been written */
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err = snd_pcm_sw_params_set_start_threshold
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(alsa_handler, alsa_swparams, chunk_size);
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CHECK_ALSA_ERROR("Unable to set start threshold");
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/* start playing when one period has been written */
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err = snd_pcm_sw_params_set_start_threshold
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(alsa_handler, alsa_swparams, chunk_size);
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CHECK_ALSA_ERROR("Unable to set start threshold");
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/* disable underrun reporting */
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err = snd_pcm_sw_params_set_stop_threshold
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(alsa_handler, alsa_swparams, boundary);
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CHECK_ALSA_ERROR("Unable to set stop threshold");
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/* disable underrun reporting */
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err = snd_pcm_sw_params_set_stop_threshold
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(alsa_handler, alsa_swparams, boundary);
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CHECK_ALSA_ERROR("Unable to set stop threshold");
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/* play silence when there is an underrun */
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err = snd_pcm_sw_params_set_silence_size
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(alsa_handler, alsa_swparams, boundary);
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CHECK_ALSA_ERROR("Unable to set silence size");
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/* play silence when there is an underrun */
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err = snd_pcm_sw_params_set_silence_size
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(alsa_handler, alsa_swparams, boundary);
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CHECK_ALSA_ERROR("Unable to set silence size");
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err = snd_pcm_sw_params(alsa_handler, alsa_swparams);
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CHECK_ALSA_ERROR("Unable to get sw-parameters");
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err = snd_pcm_sw_params(alsa_handler, alsa_swparams);
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CHECK_ALSA_ERROR("Unable to get sw-parameters");
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/* end setting sw-params */
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/* end setting sw-params */
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alsa_can_pause = snd_pcm_hw_params_can_pause(alsa_hwparams);
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alsa_can_pause = snd_pcm_hw_params_can_pause(alsa_hwparams);
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mp_msg(MSGT_AO, MSGL_V,
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"alsa: %d Hz/%d channels/%d bpf/%d bytes buffer/%s\n",
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ao_data.samplerate, ao_data.channels.num, (int)bytes_per_sample,
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ao_data.buffersize, snd_pcm_format_description(alsa_format));
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mp_msg(MSGT_AO, MSGL_V,
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"alsa: %d Hz/%d channels/%d bpf/%d bytes buffer/%s\n",
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ao_data.samplerate, ao_data.channels.num, (int)bytes_per_sample,
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ao_data.buffersize, snd_pcm_format_description(alsa_format));
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} // end switch alsa_handler (spdif)
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return 1;
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alsa_error:
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