mirror of https://github.com/mpv-player/mpv
iec958-init completly rewritten
some debug printfs cleaned git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7078 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
joyping
parent
4617c88ba9
commit
325311af33
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@ -3,10 +3,11 @@
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(C) Alex Beregszaszi <alex@naxine.org>
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modified for better alsa-0.9.0beta12(rc1)-support by Joy Winter <joy@pingfm.org>
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additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
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modified for real alsa-0.9.0-support by Joy Winter <joy@pingfm.org>
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additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
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08/22/2002 iec958-init rewritten and merged with common init, joy
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Any bugreports regarding to this driver are welcome either to the mplayer-user-mailinglist or directly to the authors.
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Any bugreports regarding to this driver are welcome.
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*/
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#include <errno.h>
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@ -47,7 +48,7 @@ static snd_pcm_t *alsa_handler;
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static snd_pcm_format_t alsa_format;
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static snd_pcm_hw_params_t *alsa_hwparams;
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static snd_pcm_sw_params_t *alsa_swparams;
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static char *alsa_device;
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const char *alsa_device;
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/* possible 4096, original 8192
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* was only needed for calculating chunksize? */
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@ -74,126 +75,6 @@ static int set_block_mode;
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#define SET_CHUNKSIZE
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#undef USE_POLL
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snd_pcm_t *spdif_init(char *pcm_name)
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{
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//char *pcm_name = "hw:0,2"; /* first card second device */
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static snd_aes_iec958_t spdif;
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static snd_aes_iec958_t spdif_test;
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snd_pcm_info_t *info;
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snd_pcm_t *handler;
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snd_pcm_format_t format = SND_PCM_FORMAT_S16_LE;
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unsigned int channels = 2;
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unsigned int rate = 48000;
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int err, c;
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if ((err = snd_pcm_open(&handler, pcm_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
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{
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fprintf(stderr, "open: %s\n", snd_strerror(err));
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return NULL;
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}
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snd_pcm_info_alloca(&info);
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if ((err = snd_pcm_info(handler, info)) < 0) {
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fprintf(stderr, "info: %s\n", snd_strerror(err));
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snd_pcm_close(handler);
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return NULL;
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}
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printf("device: %d, subdevice: %d\n", snd_pcm_info_get_device(info),
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snd_pcm_info_get_subdevice(info));
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{
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snd_ctl_elem_value_t *ctl;
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snd_ctl_t *ctl_handler;
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snd_ctl_elem_id_t *elem_id;
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unsigned int elem_device;
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const char *elem_name;
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char ctl_name[12];
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int ctl_card;
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//elem_id = 36;
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spdif.status[0] = IEC958_AES0_NONAUDIO |
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IEC958_AES0_CON_EMPHASIS_NONE;
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spdif.status[1] = IEC958_AES1_CON_ORIGINAL |
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IEC958_AES1_CON_PCM_CODER;
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spdif.status[2] = 0;
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spdif.status[3] = IEC958_AES3_CON_FS_48000;
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snd_ctl_elem_value_alloca(&ctl);
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snd_ctl_elem_id_alloca(&elem_id);
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snd_ctl_elem_value_set_interface(ctl, SND_CTL_ELEM_IFACE_PCM); //SND_CTL_ELEM_IFACE_MIXER
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snd_ctl_elem_value_set_device(ctl, snd_pcm_info_get_device(info));
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snd_ctl_elem_value_set_subdevice(ctl, snd_pcm_info_get_subdevice(info));
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snd_ctl_elem_value_set_name(ctl,SND_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM)); //SWITCH
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snd_ctl_elem_value_set_iec958(ctl, &spdif);
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ctl_card = snd_pcm_info_get_card(info);
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if (ctl_card < 0) {
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fprintf(stderr, "Unable to setup the IEC958 (S/PDIF) interface - PCM has no assigned card");
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goto __diga_end;
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}
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sprintf(ctl_name, "hw:%d", ctl_card);
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printf("hw:%d\n", ctl_card);
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if ((err = snd_ctl_open(&ctl_handler, ctl_name, 0)) < 0) {
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fprintf(stderr, "Unable to open the control interface '%s': %s\n", ctl_name, snd_strerror(err));
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goto __diga_end;
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}
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if ((err = snd_ctl_elem_write(ctl_handler, ctl)) < 0) {
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//fprintf(stderr, "Unable to update the IEC958 control: %s\n", snd_strerror(err));
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printf("alsa-spdif-init: cant set spdif-through automatically\n");
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goto __diga_end;
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}
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snd_ctl_close(ctl_handler);
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__diga_end:
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}
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{
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snd_pcm_hw_params_t *params;
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snd_pcm_sw_params_t *swparams;
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snd_pcm_hw_params_alloca(¶ms);
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snd_pcm_sw_params_alloca(&swparams);
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err = snd_pcm_hw_params_any(handler, params);
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if (err < 0) {
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fprintf(stderr, "Broken configuration for this PCM: no configurations available");
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return NULL;
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}
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err = snd_pcm_hw_params_set_access(handler, params,SND_PCM_ACCESS_RW_INTERLEAVED);
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if (err < 0) {
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fprintf(stderr, "Access tyep not available");
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return NULL;
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}
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err = snd_pcm_hw_params_set_format(handler, params, format);
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if (err < 0) {
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fprintf(stderr, "Sample format non available");
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return NULL;
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}
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err = snd_pcm_hw_params_set_channels(handler, params, channels);
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if (err < 0) {
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fprintf(stderr, "Channels count non avaible");
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return NULL;
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}
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err = snd_pcm_hw_params_set_rate_near(handler, params, rate, 0); assert(err >= 0);
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err = snd_pcm_hw_params(handler, params);
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if (err < 0) {
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fprintf(stderr, "Cannot set buffer size\n");
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return NULL;
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}
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snd_pcm_sw_params_current(handler, swparams);
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}
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return handler;
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}
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/* to set/get/query special features/parameters */
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static int control(int cmd, int arg)
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@ -413,7 +294,6 @@ static int init(int rate_hz, int channels, int format, int flags)
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char *token_str[3];
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char* test_str = strdup(ao_subdevice);
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//printf("subd=%s, test=%s\n", ao_subdevice,test_str);
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if ((strcspn(ao_subdevice, ":")) > 0) {
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@ -422,12 +302,10 @@ static int init(int rate_hz, int channels, int format, int flags)
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while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
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*(token_str+i2) = sub_str;
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//printf("token %i: %s\n", i2, *(token_str+i2));
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i2 += 1;
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}
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for (i3=0; i3 <= i2-1; i3++) {
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//printf("test %i, %s\n", i3, *(token_str+i3));
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if (strcmp(*(token_str + i3), "mmap") == 0) {
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ao_mmap = 1;
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}
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@ -436,19 +314,16 @@ static int init(int rate_hz, int channels, int format, int flags)
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}
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else if (strcmp(*(token_str+i3), "hw") == 0) {
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if ((i3 < i2-1) && (strcmp(*(token_str+i3+1), "noblock") != 0) && (strcmp(*(token_str+i3+1), "mmap") != 0)) {
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//printf("next tok = %s\n", *(token_str+(i3+1)));
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alsa_device = alloca(ALSA_DEVICE_SIZE);
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snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
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device_set = 1;
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}
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else {
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//printf("setting hw\n");
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alsa_device = *(token_str+i3);
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device_set = 1;
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}
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}
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else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
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//printf("setting common, %s\n", *(token_str+i3));
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alsa_device = *(token_str+i3);
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device_set = 1;
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}
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@ -456,6 +331,50 @@ static int init(int rate_hz, int channels, int format, int flags)
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}
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} //end parsing ao_subdevice
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/* switch for spdif
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* sets opening sequence for SPDIF
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* sets also the playback and other switches 'on the fly'
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* while opening the abstract alias for the spdif subdevice
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* 'iec958'
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*/
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if (format == AFMT_AC3) {
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char devstr[128];
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unsigned char s[4];
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int err, c;
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switch (channels) {
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case 1:
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case 2:
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s[0] = IEC958_AES0_NONAUDIO |
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IEC958_AES0_CON_EMPHASIS_NONE;
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s[1] = IEC958_AES1_CON_ORIGINAL |
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IEC958_AES1_CON_PCM_CODER;
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s[2] = 0;
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s[3] = IEC958_AES3_CON_FS_48000;
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sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x",
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s[0], s[1], s[2], s[3]);
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if (verbose)
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printf("alsa-spdif-init: playing AC3, %i channels\n", channels);
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break;
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case 4:
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strcpy(devstr, "surround40");
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break;
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case 6:
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strcpy(devstr, "surround51");
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break;
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default:
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fprintf(stderr, "%d channels are not supported\n", channels);
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exit (0);
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}
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alsa_device = devstr;
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}
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if (alsa_device == NULL)
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{
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int tmp_device, tmp_subdevice, err;
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@ -507,15 +426,6 @@ static int init(int rate_hz, int channels, int format, int flags)
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printf("alsa-init: soundcard set to %s\n", alsa_device);
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}
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// switch for spdif
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// Try to initialize the SPDIF interface
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if (format == AFMT_AC3) {
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if (device_set)
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alsa_handler = spdif_init(alsa_device);
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else
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alsa_handler = spdif_init("iec958");
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}
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//setting modes for block or nonblock-mode
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if (ao_noblock) {
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open_mode = SND_PCM_NONBLOCK;
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@ -3,10 +3,11 @@
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(C) Alex Beregszaszi <alex@naxine.org>
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modified for better alsa-0.9.0beta12(rc1)-support by Joy Winter <joy@pingfm.org>
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additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
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modified for real alsa-0.9.0-support by Joy Winter <joy@pingfm.org>
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additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
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08/22/2002 iec958-init rewritten and merged with common init, joy
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Any bugreports regarding to this driver are welcome either to the mplayer-user-mailinglist or directly to the authors.
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Any bugreports regarding to this driver are welcome.
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*/
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#include <errno.h>
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@ -47,7 +48,7 @@ static snd_pcm_t *alsa_handler;
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static snd_pcm_format_t alsa_format;
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static snd_pcm_hw_params_t *alsa_hwparams;
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static snd_pcm_sw_params_t *alsa_swparams;
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static char *alsa_device;
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const char *alsa_device;
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/* possible 4096, original 8192
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* was only needed for calculating chunksize? */
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@ -74,126 +75,6 @@ static int set_block_mode;
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#define SET_CHUNKSIZE
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#undef USE_POLL
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snd_pcm_t *spdif_init(char *pcm_name)
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{
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//char *pcm_name = "hw:0,2"; /* first card second device */
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static snd_aes_iec958_t spdif;
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static snd_aes_iec958_t spdif_test;
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snd_pcm_info_t *info;
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snd_pcm_t *handler;
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snd_pcm_format_t format = SND_PCM_FORMAT_S16_LE;
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unsigned int channels = 2;
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unsigned int rate = 48000;
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int err, c;
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if ((err = snd_pcm_open(&handler, pcm_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
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{
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fprintf(stderr, "open: %s\n", snd_strerror(err));
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return NULL;
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}
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snd_pcm_info_alloca(&info);
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if ((err = snd_pcm_info(handler, info)) < 0) {
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fprintf(stderr, "info: %s\n", snd_strerror(err));
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snd_pcm_close(handler);
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return NULL;
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}
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printf("device: %d, subdevice: %d\n", snd_pcm_info_get_device(info),
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snd_pcm_info_get_subdevice(info));
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{
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snd_ctl_elem_value_t *ctl;
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snd_ctl_t *ctl_handler;
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snd_ctl_elem_id_t *elem_id;
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unsigned int elem_device;
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const char *elem_name;
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char ctl_name[12];
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int ctl_card;
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//elem_id = 36;
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spdif.status[0] = IEC958_AES0_NONAUDIO |
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IEC958_AES0_CON_EMPHASIS_NONE;
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spdif.status[1] = IEC958_AES1_CON_ORIGINAL |
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IEC958_AES1_CON_PCM_CODER;
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spdif.status[2] = 0;
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spdif.status[3] = IEC958_AES3_CON_FS_48000;
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snd_ctl_elem_value_alloca(&ctl);
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snd_ctl_elem_id_alloca(&elem_id);
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snd_ctl_elem_value_set_interface(ctl, SND_CTL_ELEM_IFACE_PCM); //SND_CTL_ELEM_IFACE_MIXER
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snd_ctl_elem_value_set_device(ctl, snd_pcm_info_get_device(info));
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snd_ctl_elem_value_set_subdevice(ctl, snd_pcm_info_get_subdevice(info));
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snd_ctl_elem_value_set_name(ctl,SND_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM)); //SWITCH
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snd_ctl_elem_value_set_iec958(ctl, &spdif);
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ctl_card = snd_pcm_info_get_card(info);
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if (ctl_card < 0) {
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fprintf(stderr, "Unable to setup the IEC958 (S/PDIF) interface - PCM has no assigned card");
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goto __diga_end;
|
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}
|
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|
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sprintf(ctl_name, "hw:%d", ctl_card);
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printf("hw:%d\n", ctl_card);
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if ((err = snd_ctl_open(&ctl_handler, ctl_name, 0)) < 0) {
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fprintf(stderr, "Unable to open the control interface '%s': %s\n", ctl_name, snd_strerror(err));
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goto __diga_end;
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}
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if ((err = snd_ctl_elem_write(ctl_handler, ctl)) < 0) {
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//fprintf(stderr, "Unable to update the IEC958 control: %s\n", snd_strerror(err));
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printf("alsa-spdif-init: cant set spdif-through automatically\n");
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goto __diga_end;
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}
|
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|
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snd_ctl_close(ctl_handler);
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__diga_end:
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|
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}
|
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|
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{
|
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snd_pcm_hw_params_t *params;
|
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snd_pcm_sw_params_t *swparams;
|
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|
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snd_pcm_hw_params_alloca(¶ms);
|
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snd_pcm_sw_params_alloca(&swparams);
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err = snd_pcm_hw_params_any(handler, params);
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if (err < 0) {
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fprintf(stderr, "Broken configuration for this PCM: no configurations available");
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return NULL;
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}
|
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|
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err = snd_pcm_hw_params_set_access(handler, params,SND_PCM_ACCESS_RW_INTERLEAVED);
|
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if (err < 0) {
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fprintf(stderr, "Access tyep not available");
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return NULL;
|
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}
|
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err = snd_pcm_hw_params_set_format(handler, params, format);
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|
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if (err < 0) {
|
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fprintf(stderr, "Sample format non available");
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return NULL;
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}
|
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|
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err = snd_pcm_hw_params_set_channels(handler, params, channels);
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|
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if (err < 0) {
|
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fprintf(stderr, "Channels count non avaible");
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return NULL;
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}
|
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|
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err = snd_pcm_hw_params_set_rate_near(handler, params, rate, 0); assert(err >= 0);
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|
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err = snd_pcm_hw_params(handler, params);
|
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|
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if (err < 0) {
|
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fprintf(stderr, "Cannot set buffer size\n");
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return NULL;
|
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}
|
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snd_pcm_sw_params_current(handler, swparams);
|
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}
|
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return handler;
|
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}
|
||||
|
||||
|
||||
/* to set/get/query special features/parameters */
|
||||
static int control(int cmd, int arg)
|
||||
|
|
@ -413,7 +294,6 @@ static int init(int rate_hz, int channels, int format, int flags)
|
|||
char *token_str[3];
|
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char* test_str = strdup(ao_subdevice);
|
||||
|
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//printf("subd=%s, test=%s\n", ao_subdevice,test_str);
|
||||
|
||||
if ((strcspn(ao_subdevice, ":")) > 0) {
|
||||
|
||||
|
|
@ -422,12 +302,10 @@ static int init(int rate_hz, int channels, int format, int flags)
|
|||
|
||||
while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
|
||||
*(token_str+i2) = sub_str;
|
||||
//printf("token %i: %s\n", i2, *(token_str+i2));
|
||||
i2 += 1;
|
||||
}
|
||||
|
||||
for (i3=0; i3 <= i2-1; i3++) {
|
||||
//printf("test %i, %s\n", i3, *(token_str+i3));
|
||||
if (strcmp(*(token_str + i3), "mmap") == 0) {
|
||||
ao_mmap = 1;
|
||||
}
|
||||
|
|
@ -436,19 +314,16 @@ static int init(int rate_hz, int channels, int format, int flags)
|
|||
}
|
||||
else if (strcmp(*(token_str+i3), "hw") == 0) {
|
||||
if ((i3 < i2-1) && (strcmp(*(token_str+i3+1), "noblock") != 0) && (strcmp(*(token_str+i3+1), "mmap") != 0)) {
|
||||
//printf("next tok = %s\n", *(token_str+(i3+1)));
|
||||
alsa_device = alloca(ALSA_DEVICE_SIZE);
|
||||
snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
|
||||
device_set = 1;
|
||||
}
|
||||
else {
|
||||
//printf("setting hw\n");
|
||||
alsa_device = *(token_str+i3);
|
||||
device_set = 1;
|
||||
}
|
||||
}
|
||||
else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
|
||||
//printf("setting common, %s\n", *(token_str+i3));
|
||||
alsa_device = *(token_str+i3);
|
||||
device_set = 1;
|
||||
}
|
||||
|
|
@ -456,6 +331,50 @@ static int init(int rate_hz, int channels, int format, int flags)
|
|||
}
|
||||
} //end parsing ao_subdevice
|
||||
|
||||
/* switch for spdif
|
||||
* sets opening sequence for SPDIF
|
||||
* sets also the playback and other switches 'on the fly'
|
||||
* while opening the abstract alias for the spdif subdevice
|
||||
* 'iec958'
|
||||
*/
|
||||
if (format == AFMT_AC3) {
|
||||
char devstr[128];
|
||||
unsigned char s[4];
|
||||
int err, c;
|
||||
|
||||
switch (channels) {
|
||||
case 1:
|
||||
case 2:
|
||||
|
||||
s[0] = IEC958_AES0_NONAUDIO |
|
||||
IEC958_AES0_CON_EMPHASIS_NONE;
|
||||
s[1] = IEC958_AES1_CON_ORIGINAL |
|
||||
IEC958_AES1_CON_PCM_CODER;
|
||||
s[2] = 0;
|
||||
s[3] = IEC958_AES3_CON_FS_48000;
|
||||
|
||||
sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x",
|
||||
s[0], s[1], s[2], s[3]);
|
||||
|
||||
if (verbose)
|
||||
printf("alsa-spdif-init: playing AC3, %i channels\n", channels);
|
||||
break;
|
||||
case 4:
|
||||
strcpy(devstr, "surround40");
|
||||
break;
|
||||
|
||||
case 6:
|
||||
strcpy(devstr, "surround51");
|
||||
break;
|
||||
|
||||
default:
|
||||
fprintf(stderr, "%d channels are not supported\n", channels);
|
||||
exit (0);
|
||||
}
|
||||
|
||||
alsa_device = devstr;
|
||||
}
|
||||
|
||||
if (alsa_device == NULL)
|
||||
{
|
||||
int tmp_device, tmp_subdevice, err;
|
||||
|
|
@ -507,15 +426,6 @@ static int init(int rate_hz, int channels, int format, int flags)
|
|||
printf("alsa-init: soundcard set to %s\n", alsa_device);
|
||||
}
|
||||
|
||||
// switch for spdif
|
||||
// Try to initialize the SPDIF interface
|
||||
if (format == AFMT_AC3) {
|
||||
if (device_set)
|
||||
alsa_handler = spdif_init(alsa_device);
|
||||
else
|
||||
alsa_handler = spdif_init("iec958");
|
||||
}
|
||||
|
||||
//setting modes for block or nonblock-mode
|
||||
if (ao_noblock) {
|
||||
open_mode = SND_PCM_NONBLOCK;
|
||||
|
|
|
|||
Loading…
Reference in New Issue