make osx_write work for any bitrate

[paraslash.git] / osx_writer.c

diff --git a/osx_writer.c b/osx_writer.c
index df4194122f50818270c904da533fc4a113d81c93..2af553db4386561ff58cc1652be235f30f8f551a 100644 (file)
--- a/osx_writer.c
+++ b/osx_writer.c
@@ -50,6 +50,7 @@ struct private_osx_writer_data {
        sem_t *semaphore;
        osx_buffer *from; /* Current buffers */
        osx_buffer *to;
        sem_t *semaphore;
        osx_buffer *from; /* Current buffers */
        osx_buffer *to;

+       unsigned samplerate;

 };
 
 
 };
 
 


@@ -113,9 +114,14 @@ static void fill_buffer(osx_buffer *b, short *source, long size)
                b->size = size;
        }
        dest = b->buffer;
                b->size = size;
        }
        dest = b->buffer;

-       while (size--)
+       while (size--) {
+               char *tmp = (char *)source;
+               char c = *tmp;
+               *tmp = *(tmp + 1);
+               *(tmp + 1) = c;

                /* *dest++ = ((*source++) + 32768) / 65536.0; */
                *dest++ = (*source++) / 32768.0;
                /* *dest++ = ((*source++) + 32768) / 65536.0; */
                *dest++ = (*source++) / 32768.0;

+       }

        b->ptr = b->buffer;
        b->remaining = b->size;
 }
        b->ptr = b->buffer;
        b->remaining = b->size;
 }


@@ -176,6 +182,8 @@ static int osx_writer_open(struct writer_node *wn)
        AudioStreamBasicDescription format;
        char s[10];
        int m, ret;
        AudioStreamBasicDescription format;
        char s[10];
        int m, ret;

+       struct writer_node_group *wng = wn->wng;
+       struct osx_write_args_info *conf = wn->conf;

 
        wn->private_data = powd;
        /* where did that default audio output go? */
 
        wn->private_data = powd;
        /* where did that default audio output go? */


@@ -204,7 +212,11 @@ static int osx_writer_open(struct writer_node *wn)
         * AND you want the DefaultOutputUnit to do any format conversions
         * necessary from your format to the device's format.
         */
         * AND you want the DefaultOutputUnit to do any format conversions
         * necessary from your format to the device's format.
         */

-       format.mSampleRate = 44100.0; /* The sample rate of the audio stream */
+       if (!conf->samplerate_given && wng->samplerate)
+               powd->samplerate = *wng->samplerate;
+       else
+               powd->samplerate = conf->samplerate_arg;
+       format.mSampleRate = powd->samplerate;

        /* The specific encoding type of audio stream*/
        format.mFormatID = kAudioFormatLinearPCM;
        /* flags specific to each format */
        /* The specific encoding type of audio stream*/
        format.mFormatID = kAudioFormatLinearPCM;
        /* flags specific to each format */


@@ -240,7 +252,7 @@ static int osx_writer_open(struct writer_node *wn)
                        kAudioUnitScope_Input, 0, &inputCallback,
                        sizeof(inputCallback)) < 0)
                goto e3;
                        kAudioUnitScope_Input, 0, &inputCallback,
                        sizeof(inputCallback)) < 0)
                goto e3;

-       return 0;
+       return 1;

 e3:
        destroy_buffers(powd);
 e2:
 e3:
        destroy_buffers(powd);
 e2:


@@ -279,20 +291,30 @@ static void osx_writer_close(struct writer_node *wn)
        free(powd);
 }
 
        free(powd);
 }
 

+static int need_new_buffer(struct writer_node *wn)
+{
+       struct writer_node_group *wng = wn->wng;
+       struct private_osx_writer_data *powd = wn->private_data;
+
+       if (*wng->loaded < sizeof(short))
+               return 0;
+       if (powd->to->remaining) /* Non empty buffer, must still be playing */
+               return 0;
+       return 1;
+}
+

 static int osx_write_post_select(__a_unused struct sched *s,
                struct writer_node *wn)
 {
        struct private_osx_writer_data *powd = wn->private_data;
        struct writer_node_group *wng = wn->wng;
 static int osx_write_post_select(__a_unused struct sched *s,
                struct writer_node *wn)
 {
        struct private_osx_writer_data *powd = wn->private_data;
        struct writer_node_group *wng = wn->wng;

-       short *data = (short*)wng->buf + wn->written;
+       short *data = (short*)wng->buf;

 
 

-       if (*wng->loaded <= wn->written)
-               return 1;
-       if (powd->to->remaining) /* Non empty buffer, must still be playing */
+       if (!need_new_buffer(wn))

                return 1;
                return 1;

-       fill_buffer(powd->to, data, (*wng->loaded - wn->written) / sizeof(short));
+       fill_buffer(powd->to, data, *wng->loaded / sizeof(short));

        powd->to = powd->to->next;
        powd->to = powd->to->next;

-       wn->written += (*wng->loaded - wn->written);
+       wn->written = *wng->loaded;

        if (!powd->play) {
                if (AudioOutputUnitStart(powd->output))
                        return -1;
        if (!powd->play) {
                if (AudioOutputUnitStart(powd->output))
                        return -1;


@@ -301,15 +323,8 @@ static int osx_write_post_select(__a_unused struct sched *s,
        return 1;
 }
 
        return 1;
 }
 

-static int osx_write_pre_select(struct sched *s, struct writer_node *wn)
+static int osx_write_pre_select(struct sched *s, __a_unused struct writer_node *wn)

 {
 {

-       struct writer_node_group *wng = wn->wng;
-       struct private_osx_writer_data *powd = wn->private_data;
-
-//     if (!*wng->loaded)
-//             return 1;
-//     if (powd->to->remaining) /* Non empty buffer, must still be playing */
-//             return 1;

        s->timeout.tv_sec = 0;
        s->timeout.tv_usec = 20;
        return 1;
        s->timeout.tv_sec = 0;
        s->timeout.tv_usec = 20;
        return 1;