[pulseaudio-discuss] [PATCH] parecord: Automatically detect file format from extension

[Maarten Bosmans]

And fix a small bug in pa_sndfile_format_from_string.
---
 src/pulsecore/sndfile-util.c |    2 +-
 src/utils/pacat.c            |   18 +++++++++++-------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/pulsecore/sndfile-util.c b/src/pulsecore/sndfile-util.c
index 85d7a1c..ab6485d 100644
--- a/src/pulsecore/sndfile-util.c
+++ b/src/pulsecore/sndfile-util.c
@@ -446,7 +446,7 @@ int pa_sndfile_format_from_string(const char *name) {
 
         pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) 
== 0);
 
-        if (strncasecmp(name, fi.extension, strlen(name)) == 0)
+        if (strncasecmp(name, fi.name, strlen(name)) == 0)
             return fi.format;
     }
 
diff --git a/src/utils/pacat.c b/src/utils/pacat.c
index 749593e..323f071 100644
--- a/src/utils/pacat.c
+++ b/src/utils/pacat.c
@@ -926,8 +926,6 @@ int main(int argc, char *argv[]) {
                 break;
 
             case ARG_FILE_FORMAT:
-                raw = FALSE;
-
                 if (optarg) {
                     if ((file_format = pa_sndfile_format_from_string(optarg)) 
< 0) {
                         pa_log(_("Unknown file format %s."), optarg);
@@ -986,13 +984,19 @@ int main(int argc, char *argv[]) {
                 goto quit;
             }
 
-            /* Transparently upgrade classic .wav to wavex for multichannel 
audio */
             if (file_format <= 0) {
-                if ((sample_spec.channels == 2 && (!channel_map_set || 
(channel_map.map[0] == PA_CHANNEL_POSITION_LEFT &&
-                                                                        
channel_map.map[1] == PA_CHANNEL_POSITION_RIGHT))) ||
-                    (sample_spec.channels == 1 && (!channel_map_set || 
(channel_map.map[0] == PA_CHANNEL_POSITION_MONO))))
+                char *extension;
+                if (filename && (extension = strrchr(filename, '.')))
+                    file_format = pa_sndfile_format_from_string(extension+1);
+                if (file_format <= 0)
                     file_format = SF_FORMAT_WAV;
-                else
+                /* Transparently upgrade classic .wav to wavex for 
multichannel audio */
+                if (file_format == SF_FORMAT_WAV &&
+                    (sample_spec.channels > 2 ||
+                    (channel_map_set &&
+                    !(sample_spec.channels == 1 && channel_map.map[0] == 
PA_CHANNEL_POSITION_MONO) &&
+                    !(sample_spec.channels == 2 && channel_map.map[0] == 
PA_CHANNEL_POSITION_LEFT
+                                                && channel_map.map[1] == 
PA_CHANNEL_POSITION_RIGHT))))
                     file_format = SF_FORMAT_WAVEX;
             }
 
-- 
1.7.4.1

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