[alsa-devel] [alsa-plugins] [PATCH 1/2] Allow to specify a client name as parameters

[Takashi Iwai]

At Fri, 31 Jan 2014 14:05:42 +0000,
Corfu, ValentinX wrote:
> 
> >From 1ac8268330df7564edf252a542a27f3cf4f4472f Mon Sep 17 00:00:00 2001
> From: Valentin Corfu <valentinx.corfu at intel.com>
> Date: Fri, 31 Jan 2014 08:06:23 -0500
> Subject: [PATCH 1/2] Allow to specify a client name as parameters
> 
> The current jack client name contains the process id of the application providing the audio samples.
> This leads to unpredictable jack client names which makes handling of the connections by a controlling application very hard.
> This modification now, allows to specify a client name as parameters in the configuration file.
> The implementation is backward compatible and simply adds a new configuration option to the plugin.

Thanks, now it's much simpler than previous versions.
But the patch you embedded in the mail couldn't be applied because
your mailer converted the spaces wrongly.  Please fix your mailer, or
use an attachment if it's difficult.

Also, it'd be better to break lines in some fixed width (less than 80
chars) in changelog.


thanks,

Takashi

> 
> Signed-off-by: Valentin Corfu <valentinx.corfu at intel.com>
> 
> diff --git a/jack/pcm_jack.c b/jack/pcm_jack.c
> index c51fe84..475c619 100644
> --- a/jack/pcm_jack.c
> +++ b/jack/pcm_jack.c
> @@ -355,12 +355,19 @@ static int snd_pcm_jack_open(snd_pcm_t **pcmp, const char *name,
>          snd_pcm_jack_free(jack);
>          return -EINVAL;
>      }
> -
> -    if (snprintf(jack_client_name, sizeof(jack_client_name), "alsa-jack.%s%s.%d.%d", name,
> -             stream == SND_PCM_STREAM_PLAYBACK ? "P" : "C", getpid(), num++)
> -        >= (int)sizeof(jack_client_name)) {
> -        fprintf(stderr, "%s: WARNING: JACK client name '%s' truncated to %d characters, might not be unique\n",
> -            __func__, jack_client_name, (int)strlen(jack_client_name));
> +    if ( name == NULL ) {
> +        if (snprintf(jack_client_name, sizeof(jack_client_name), "alsa-jack.%s%s.%d.%d", name,
> +                stream == SND_PCM_STREAM_PLAYBACK ? "P" : "C", getpid(), num++)
> +            >= (int)sizeof(jack_client_name)) {
> +                fprintf(stderr, "%s: WARNING: JACK client name '%s' truncated to %d characters, might not be unique\n",
> +                __func__, jack_client_name, (int)strlen(jack_client_name));
> +        }
> +    } else {
> +        if (snprintf(jack_client_name, sizeof(jack_client_name), "%s", name)
> +            >= (int)sizeof(jack_client_name)) {
> +                fprintf(stderr, "%s: WARNING: JACK client name '%s' truncated to %d characters, might not be unique\n",
> +                __func__, jack_client_name, (int)strlen(jack_client_name));
> +        }
>      }
> 
>      jack->client = jack_client_new(jack_client_name);
> @@ -423,6 +430,10 @@ SND_PCM_PLUGIN_DEFINE_FUNC(jack)
>              continue;
>          if (strcmp(id, "comment") == 0 || strcmp(id, "type") == 0 || strcmp(id, "hint") == 0)
>              continue;
> +        if (strcmp(id, "name") == 0) {
> +            snd_config_get_string(n, &name);
> +            continue;
> +        }
>          if (strcmp(id, "playback_ports") == 0) {
>              if (snd_config_get_type(n) != SND_CONFIG_TYPE_COMPOUND) {
>                  SNDERR("Invalid type for %s", id);
> --
> 1.8.1.4
> 
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