mirror of
https://github.com/mpv-player/mpv
synced 2025-02-14 19:07:14 +00:00
string, alloca etc. fixes
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12748 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
joyping
parent
bfcc1e6a01
commit
319dfbad80
100
libao2/ao_alsa.c
100
libao2/ao_alsa.c
@ -53,7 +53,6 @@ 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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/* possible 4096, original 8192
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* was only needed for calculating chunksize? */
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@ -77,7 +76,7 @@ static int open_mode;
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static int set_block_mode;
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static int alsa_can_pause = 0;
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#define ALSA_DEVICE_SIZE 48
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#define ALSA_DEVICE_SIZE 256
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#undef BUFFERTIME
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#undef SET_CHUNKSIZE
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@ -100,27 +99,15 @@ static int control(int cmd, void *arg)
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snd_mixer_elem_t *elem;
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snd_mixer_selem_id_t *sid;
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static char *mix_name = NULL;
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static char *card = NULL;
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static char *mix_name = "PCM";
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static char *card = "default";
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long pmin, pmax;
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long get_vol, set_vol;
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float calc_vol, diff, f_multi;
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if(mix_name == NULL){
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if(mixer_device) {
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card = strdup(mixer_device);
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mix_name = strchr(card, '/');
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if(mix_name) {
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*mix_name++ = 0;
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} else {
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mix_name = "PCM";
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}
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} else {
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mix_name = "PCM";
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card = "default";
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}
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}
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if(mixer_channel) mix_name = mixer_channel;
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if(mixer_device) card = mixer_device;
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if(ao_data.format == AFMT_AC3)
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return CONTROL_TRUE;
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@ -225,6 +212,9 @@ static int init(int rate_hz, int channels, int format, int flags)
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int device_set = 0;
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int dir = 0;
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snd_pcm_uframes_t bufsize;
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char alsa_device[ALSA_DEVICE_SIZE + 1];
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// make sure alsa_device is null-terminated even when using strncpy etc.
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memset(alsa_device, 0, ALSA_DEVICE_SIZE + 1);
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mp_msg(MSGT_AO,MSGL_V,"alsa-init: requested format: %d Hz, %d channels, %s\n", rate_hz,
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channels, audio_out_format_name(format));
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@ -343,19 +333,18 @@ static int init(int rate_hz, int channels, int format, int flags)
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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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char *tmp;
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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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if ((tmp = strrchr(alsa_device, '.')) && isdigit(*(tmp+1)))
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*tmp = ',';
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device_set = 1;
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}
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else {
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alsa_device = *(token_str+i3);
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strncpy (alsa_device, token_str[i3], ALSA_DEVICE_SIZE);
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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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alsa_device = *(token_str+i3);
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strncpy (alsa_device, token_str[i3], ALSA_DEVICE_SIZE);
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device_set = 1;
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}
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}
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@ -364,28 +353,26 @@ static int init(int rate_hz, int channels, int format, int flags)
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/* in any case for multichannel playback we should select
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* appropriate device
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*/
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char devstr[128];
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switch (channels) {
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case 1:
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case 2:
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mp_msg(MSGT_AO,MSGL_V,"alsa-init: setup for 1/2 channel(s)\n");
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break;
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case 4:
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if (alsa_format == SND_PCM_FORMAT_FLOAT_LE)
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// hack - use the converter plugin
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strcpy(devstr, "plug:surround40");
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else
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strcpy(devstr, "surround40");
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alsa_device = devstr;
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if (alsa_format == SND_PCM_FORMAT_FLOAT_LE)
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// hack - use the converter plugin
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strncpy(alsa_device, "plug:surround40", ALSA_DEVICE_SIZE);
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else
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strncpy(alsa_device, "surround40", ALSA_DEVICE_SIZE);
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device_set = 1;
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mp_msg(MSGT_AO,MSGL_V,"alsa-init: device set to surround40\n");
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break;
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case 6:
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if (alsa_format == SND_PCM_FORMAT_FLOAT_LE)
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strcpy(devstr, "plug:surround51");
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else
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strcpy(devstr, "surround51");
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alsa_device = devstr;
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if (alsa_format == SND_PCM_FORMAT_FLOAT_LE)
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strncpy(alsa_device, "plug:surround51", ALSA_DEVICE_SIZE);
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else
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strncpy(alsa_device, "surround51", ALSA_DEVICE_SIZE);
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device_set = 1;
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mp_msg(MSGT_AO,MSGL_V,"alsa-init: device set to surround51\n");
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break;
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default:
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@ -400,9 +387,7 @@ static int init(int rate_hz, int channels, int format, int flags)
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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; //unused
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switch (channels) {
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case 1:
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@ -415,40 +400,34 @@ static int init(int rate_hz, int channels, int format, int flags)
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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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snprintf(alsa_device, ALSA_DEVICE_SIZE,
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"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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mp_msg(MSGT_AO,MSGL_V,"alsa-spdif-init: playing AC3, %i channels\n", channels);
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mp_msg(MSGT_AO,MSGL_V,"alsa-spdif-init: playing AC3, %i channels\n", channels);
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device_set = 1;
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break;
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case 4:
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strcpy(devstr, "surround40");
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strncpy(alsa_device, "surround40", ALSA_DEVICE_SIZE);
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device_set = 1;
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break;
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case 6:
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strcpy(devstr, "surround51");
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strncpy(alsa_device, "surround51", ALSA_DEVICE_SIZE);
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device_set = 1;
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break;
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default:
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-spdif-init: %d channels are not supported\n", channels);
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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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if (!device_set)
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{
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int tmp_device, tmp_subdevice, err;
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if ((err = snd_pcm_info_malloc(&alsa_info)) < 0)
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{
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-init: memory allocation error: %s\n", snd_strerror(err));
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}
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snd_pcm_info_alloca(&alsa_info);
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if ((alsa_device = alloca(ALSA_DEVICE_SIZE)) == NULL)
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{
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-init: memory allocation error: %s\n", strerror(errno));
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}
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if ((tmp_device = snd_pcm_info_get_device(alsa_info)) < 0)
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{
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-init: can't get device\n");
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@ -469,7 +448,6 @@ static int init(int rate_hz, int channels, int format, int flags)
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-init: can't write device-id\n");
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}
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snd_pcm_info_free(alsa_info);
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mp_msg(MSGT_AO,MSGL_INFO,"alsa-init: %d soundcard%s found, using: %s\n", cards+1,(cards >= 0) ? "" : "s", alsa_device);
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} else if (strcmp(alsa_device, "help") == 0) {
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printf("alsa-help: available options are:\n");
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@ -762,7 +740,6 @@ static void uninit(int immed)
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}
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else {
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alsa_handler = NULL;
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alsa_device = NULL;
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mp_msg(MSGT_AO,MSGL_INFO,"alsa-uninit: pcm closed\n");
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}
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}
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@ -1084,11 +1061,7 @@ static int get_space()
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//snd_pcm_sframes_t avail_frames = 0;
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if ((ret = snd_pcm_status_malloc(&status)) < 0)
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{
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-space: memory allocation error: %s\n", snd_strerror(ret));
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return(0);
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}
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snd_pcm_status_alloca(&status);
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if ((ret = snd_pcm_status(alsa_handler, status)) < 0)
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{
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@ -1136,7 +1109,6 @@ static int get_space()
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if (str_status != "running")
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mp_msg(MSGT_AO,MSGL_V,"alsa-space: free space = %i, status=%i, %s --\n", ret, status, str_status);
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snd_pcm_status_free(status);
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if (ret < 0) {
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mp_msg(MSGT_AO,MSGL_ERR,"negative value!!\n");
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@ -1159,10 +1131,7 @@ static float get_delay()
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snd_pcm_status_t *status;
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float ret;
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if ((ret = snd_pcm_status_malloc(&status)) < 0)
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{
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mp_msg(MSGT_AO,MSGL_ERR,"alsa-delay: memory allocation error: %s\n", snd_strerror(ret));
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}
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snd_pcm_status_alloca(&status);
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if ((ret = snd_pcm_status(alsa_handler, status)) < 0)
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{
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@ -1180,7 +1149,6 @@ static float get_delay()
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ret = 0;
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}
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snd_pcm_status_free(status);
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if (ret < 0)
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ret = 0;
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