1.) Human-readable portnames on larger cards where "playback_56" is
simply to cumbersome to figure out what's actually connected
2.) People who travel with ADAT-ADCs/DACs, but connect them via
different interfaces in different locations, e.g. a Multiface
when on the road and a RayDat when in the studio. Despite the
different cards, the port names and hence any ardour session
would remain intact.
http://adi.loris.tv/jackd2-portnames.png
alsa_pcm:hw:1,0:out1
system:capture_1
alsa_pcm:hw:1,0:out2
system:capture_2
--- /dev/null
+++ b/linux/alsa/port_names.c
@@ -0,0 +1,179 @@
+/* -*- mode: c; c-file-style: "linux"; -*- */
+/*
+ Copyright (C) 2010 Florian Faber, faber@faberman.de
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+#include <math.h>
+#include <stdio.h>
+#include <memory.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <string.h>
+
+#include "alsa_driver.h"
+
+
+static int port_names_load_portfile(alsa_driver_t *driver, const char *filename, char **buf, const unsigned int offset, const unsigned int num) {
+ int fh, i, ret, lineno, id, res=0;
+ char line[256];
+
+ printf("Trying to load portnames from %s\n", filename);
+ fh = open(filename, O_RDONLY);
+ if (-1!=fh) {
+ res = 1;
+ i = 0;
+ lineno = 1;
+ for (;;) {
+ ret = read(fh, &line[i], 1);
+ if (0==ret) {
+ break;
+ } else if (-1==ret) {
+ sprintf(stderr, "Error while reading \"%s\": %s", filename, strerror(errno));
+ break;
+ }
+ if (0x0A==line[i]) {
+ /* new line, parse input */
+ line[i] = 0;
+
+ if ('#' != line[0]) {
+ i=0;
+ while ((i<255) && (line[i]!='=')) i++;
+ if (255==i) {
+ sprintf(stderr, "Error while reading \"%s\": Line %d has no key=value syntax!", filename, lineno);
+ } else {
+ line[i] = 0;
+ id = atoi(line);
+ if ((id>=1) && (id<=num)) {
+ if (NULL==buf[id-1+offset]) {
+ /* don't overwrite existing names */
+ buf[id-1+offset] = strdup(&line[i+1]);
+ }
+ } else {
+ sprintf(stderr, "Error while reading \"%s\": Key %d out of range in line %d (1..%d)", filename, id, lineno, num);
+ }
+ }
+ }
+
+ i = 0;
+ lineno++;
+ } else {
+ i++;
+ if (i==255) {
+ sprintf(stderr, "Error while reading \"%s\": Line %d is too long", filename, lineno);
+ break;
+ }
+ }
+ }
+
+ (void) close(fh);
+ }
+
+ return res;
+}
+
+
+static void port_names_default_portnames(char **buf, const unsigned int offset, const unsigned int num, const char *defaultname) {
+ unsigned int i;
+ char line[256];
+
+ /* Fill in default names */
+ for (i=0; i<num; i++) {
+ if (NULL==buf[i+offset]) {
+ snprintf(line, 255, defaultname, i+1);
+ buf[i+offset] = strdup(line);
+ }
+ }
+}
+
+
+char** port_names_get_portnames(alsa_driver_t *driver) {
+ snd_ctl_card_info_t *card_info;
+ int err;
+ const char *card_name = NULL;
+ char filename[256], *speed;
+ char **buf;
+
+ printf("Using port names patch v0.1 (07.04.2010)\n");
+
+ if (driver->frame_rate > 96000) {
+ speed="qs";
+ } else if (driver->frame_rate > 48000) {
+ speed="ds";
+ } else {
+ speed="ss";
+ }
+
+ snd_ctl_card_info_alloca(&card_info);
+ err = snd_ctl_card_info(driver->ctl_handle, card_info);
+ if (err >= 0) {
+ card_name = snd_ctl_card_info_get_name(card_info);
+ } else {
+ card_name = "noname";
+ }
+
+ buf = malloc(sizeof(char *)*(driver->capture_nchannels + driver->playback_nchannels));
+ if (NULL==buf) {
+ sprintf(stderr, "ALSA: Not enough memory for %d port names", driver->capture_nchannels + driver->playback_nchannels);
+ return NULL;
+ }
+ bzero(buf, sizeof(char *)*(driver->capture_nchannels + driver->playback_nchannels));
+
+ /* Read port names from special to general:
+ * Begin with user and speed specific port names */
+ snprintf(filename, 255, "%s/.config/jack/cards/%s.%s.ports.in", getenv("HOME"), card_name, speed);
+ (void) port_names_load_portfile(driver, filename, buf, 0, driver->capture_nchannels);
+
+ /* Now user general */
+ snprintf(filename, 255, "%s/.config/jack/cards/%s.ports.in", getenv("HOME"), card_name);
+ (void) port_names_load_portfile(driver, filename, buf, 0, driver->capture_nchannels);
+
+ /* System speed specific */
+ snprintf(filename, 255, "/etc/jack/cards/%s.%s.ports.in", card_name, speed);
+ (void) port_names_load_portfile(driver, filename, buf, 0, driver->capture_nchannels);
+
+ /* System general */
+ snprintf(filename, 255, "/etc/jack/cards/%s.ports.in", card_name);
+ (void) port_names_load_portfile(driver, filename, buf, 0, driver->capture_nchannels);
+
+ /* Fill all still unnamed ports with default names */
+ port_names_default_portnames(buf, 0, driver->capture_nchannels, "capture_%lu");
+
+
+ /* Same procedure for the playback channels */
+ snprintf(filename, 255, "%s/.config/jack/cards/%s.%s.ports.out", getenv("HOME"), card_name, speed);
+ (void) port_names_load_portfile(driver, filename, buf, driver->capture_nchannels, driver->playback_nchannels);
+
+ snprintf(filename, 255, "%s/.config/jack/cards/%s.ports.out", getenv("HOME"), card_name);
+ (void) port_names_load_portfile(driver, filename, buf, driver->capture_nchannels, driver->playback_nchannels);
+
+ snprintf(filename, 255, "/etc/jack/cards/%s.%s.ports.out", card_name, speed);
+ (void) port_names_load_portfile(driver, filename, buf, driver->capture_nchannels, driver->playback_nchannels);
+
+ snprintf(filename, 255, "/etc/jack/cards/%s.ports.out", card_name);
+ (void) port_names_load_portfile(driver, filename, buf, driver->capture_nchannels, driver->playback_nchannels);
+
+ port_names_default_portnames(buf, driver->capture_nchannels, driver->playback_nchannels, "playback_%lu");
+
+ return buf;
+}
--- /dev/null
+++ b/linux/alsa/port_names.h
@@ -0,0 +1,34 @@
+/*
+ Copyright (C) 2010 Florian Faber, faber@faberman.de
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __jack_port_names_h__
+#define __jack_port_names_h__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+char** port_names_get_portnames(alsa_driver_t *driver);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __jack_port_names_h__ */
--- a/linux/alsa/JackAlsaDriver.cpp
+++ b/linux/alsa/JackAlsaDriver.cpp
@@ -42,6 +42,7 @@
#include "JackPosixThread.h"
#include "JackCompilerDeps.h"
#include "JackServerGlobals.h"
+#include "port_names.h"
namespace Jack
{
@@ -97,6 +98,8 @@
unsigned long port_flags = (unsigned long)CaptureDriverFlags;
char name[REAL_JACK_PORT_NAME_SIZE];
char alias[REAL_JACK_PORT_NAME_SIZE];
+ char old_name[REAL_JACK_PORT_NAME_SIZE];
+ char **portnames;
assert(fCaptureChannels < DRIVER_PORT_NUM);
assert(fPlaybackChannels < DRIVER_PORT_NUM);
@@ -112,13 +115,17 @@
jack_log("JackAlsaDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
+ portnames = port_names_get_portnames(alsa_driver);
+
for (int i = 0; i < fCaptureChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:out%d", fAliasName, fCaptureDriverName, i + 1);
- snprintf(name, sizeof(name), "%s:capture_%d", fClientControl.fName, i + 1);
+ snprintf(old_name, sizeof(old_name), "%s:capture_%d", fClientControl.fName, i + 1);
+ snprintf(name, sizeof(name), "%s:%s", fClientControl.fName, portnames[i]);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
+ free(portnames[i]);
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fCapturePortList[i] = port_index;
@@ -129,11 +136,13 @@
for (int i = 0; i < fPlaybackChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:in%d", fAliasName, fPlaybackDriverName, i + 1);
- snprintf(name, sizeof(name), "%s:playback_%d", fClientControl.fName, i + 1);
+ snprintf(old_name, sizeof(old_name), "%s:playback_%d", fClientControl.fName, i + 1);
+ snprintf(name, sizeof(name), "%s:%s", fClientControl.fName, portnames[i+fCaptureChannels]);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
+ free(portnames[i+fCaptureChannels]);
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fPlaybackPortList[i] = port_index;
@@ -151,6 +160,8 @@
}
}
+ free(portnames);
+
UpdateLatencies();
if (alsa_driver->midi) {
--- a/linux/wscript
+++ b/linux/wscript
@@ -55,6 +55,7 @@
'alsa/hdsp.c',
'alsa/alsa_driver.c',
'alsa/hammerfall.c',
+ 'alsa/port_names.c',
'alsa/ice1712.c'
]
alsa_pcm:hw:1,0:out1
system:capture_1
alsa_pcm:hw:1,0:out2
system:capture_2
alsa_pcm:hw:1,0:out3
system:capture_3
alsa_pcm:hw:1,0:out4
system:capture_4
alsa_pcm:hw:1,0:out5
system:capture_5
alsa_pcm:hw:1,0:out6
system:capture_6
alsa_pcm:hw:1,0:out7
system:capture_7
alsa_pcm:hw:1,0:out8
system:capture_8
alsa_pcm:hw:1,0:out9
system:capture_9
alsa_pcm:hw:1,0:out10
system:capture_10
alsa_pcm:hw:1,0:out11
system:capture_11
alsa_pcm:hw:1,0:out12
system:capture_12
alsa_pcm:hw:1,0:out13
system:capture_13
alsa_pcm:hw:1,0:out14
system:capture_14
alsa_pcm:hw:1,0:out15
system:capture_15
alsa_pcm:hw:1,0:out16
system:capture_16
alsa_pcm:hw:1,0:out17
system:capture_17
alsa_pcm:hw:1,0:out18
system:capture_18
alsa_pcm:hw:1,0:out19
system:capture_19
alsa_pcm:hw:1,0:out20
system:capture_20
alsa_pcm:hw:1,0:out21
system:capture_21
alsa_pcm:hw:1,0:out22
system:capture_22
alsa_pcm:hw:1,0:out23
system:capture_23
alsa_pcm:hw:1,0:out24
system:capture_24
alsa_pcm:hw:1,0:out25
system:capture_25
alsa_pcm:hw:1,0:out26
system:capture_26
alsa_pcm:hw:1,0:out27
system:capture_27
alsa_pcm:hw:1,0:out28
system:capture_28
alsa_pcm:hw:1,0:out29
system:capture_29
alsa_pcm:hw:1,0:out30
system:capture_30
alsa_pcm:hw:1,0:out31
system:capture_31
alsa_pcm:hw:1,0:out32
system:capture_32
alsa_pcm:hw:1,0:out33
system:capture_33
alsa_pcm:hw:1,0:out34
system:capture_34
alsa_pcm:hw:1,0:out35
system:capture_35
alsa_pcm:hw:1,0:out36
system:capture_36
alsa_pcm:hw:1,0:in1
system:playback_1
alsa_pcm:hw:1,0:in2
system:playback_2
alsa_pcm:hw:1,0:in3
system:playback_3
alsa_pcm:hw:1,0:in4
system:playback_4
alsa_pcm:hw:1,0:in5
system:playback_5
alsa_pcm:hw:1,0:in6
system:playback_6
alsa_pcm:hw:1,0:in7
system:playback_7
alsa_pcm:hw:1,0:in8
system:playback_8
alsa_pcm:hw:1,0:in9
system:playback_9
alsa_pcm:hw:1,0:in10
system:playback_10
alsa_pcm:hw:1,0:in11
system:playback_11
alsa_pcm:hw:1,0:in12
system:playback_12
alsa_pcm:hw:1,0:in13
system:playback_13
alsa_pcm:hw:1,0:in14
system:playback_14
alsa_pcm:hw:1,0:in15
system:playback_15
alsa_pcm:hw:1,0:in16
system:playback_16
alsa_pcm:hw:1,0:in17
system:playback_17
alsa_pcm:hw:1,0:in18
system:playback_18
alsa_pcm:hw:1,0:in19
system:playback_19
alsa_pcm:hw:1,0:in20
system:playback_20
alsa_pcm:hw:1,0:in21
system:playback_21
alsa_pcm:hw:1,0:in22
system:playback_22
alsa_pcm:hw:1,0:in23
system:playback_23
alsa_pcm:hw:1,0:in24
system:playback_24
alsa_pcm:hw:1,0:in25
system:playback_25
alsa_pcm:hw:1,0:in26
system:playback_26
alsa_pcm:hw:1,0:in27
system:playback_27
alsa_pcm:hw:1,0:in28
system:playback_28
alsa_pcm:hw:1,0:in29
system:playback_29
alsa_pcm:hw:1,0:in30
system:playback_30
alsa_pcm:hw:1,0:in31
system:playback_31
alsa_pcm:hw:1,0:in32
system:playback_32
alsa_pcm:hw:1,0:in33
system:playback_33
alsa_pcm:hw:1,0:in34
system:playback_34
alsa_pcm:hw:1,0:in35
system:playback_35
alsa_pcm:hw:1,0:in36
system:playback_36