[pulseaudio-commits] [SCM] PulseAudio Sound Server branch, master, updated. v0.9.19-198-g754644f

Lennart Poettering gitmailer-noreply at 0pointer.de
Wed Oct 28 17:54:30 PDT 2009


This is an automated email from the git hooks/post-receive script. It was
generated because of a push to the "PulseAudio Sound Server" repository.

The master branch has been updated
      from  e9ccc61a2f561c37939e34a192bd7bd953eb8cbc (commit)

- Log -----------------------------------------------------------------
754644f Merge remote branch 'origin/master'
e7e4e44 simd: update test cases
2edb4df smoother: add comments about optimization recommendations from Jason Newton
f27a506 libpulse: introduce PA_STREAM_RELATIVE_VOLUME
546bcf3 protocol-native: if a client set volume/mute/device store it since it is user input
2501687 libpulse: explain semantics of pa_stream_connect_playback() in more detail
27c6a80 protocol-native: declare that user configured volumes are always absolute
78984e4 pactl: format cookie a little bit nicer
8678f56 pactl: include information about client context in pactl stat output
7c55d6e clients: drop definition of BUFSIZE which is unused
4538523 libpulse: introduce pa_context_get_tile_size() call
744490a memblock: decrease tile size to 64k again
d25b9ea module-equalizer-sink: drop source executable permissions configure.ac: add enable/disable + summary line for fftw
8f2289c module-equalizer-sink:     *fixed SSE2 optimized dsp logic (default if available)     *cleaned up whitespace formatting (again)
781eb59 module-equalizer-sink: fixed equalizer state save/restore
-----------------------------------------------------------------------

Summary of changes:
 PROTOCOL                        |    6 ++++++
 configure.ac                    |    2 +-
 src/map-file                    |    1 +
 src/pulse/context.c             |   17 +++++++++++++++++
 src/pulse/context.h             |   22 +++++++++++++++++++---
 src/pulse/def.h                 |   10 +++++++++-
 src/pulse/stream.c              |   10 +++++++++-
 src/pulse/stream.h              |   17 ++++++++++++++++-
 src/pulsecore/memblock.c        |    2 +-
 src/pulsecore/protocol-native.c |   29 ++++++++++++++++++++++++-----
 src/pulsecore/svolume_mmx.c     |    4 ++++
 src/pulsecore/svolume_sse.c     |   10 +++++++---
 src/pulsecore/time-smoother.c   |    7 +++++++
 src/utils/pactl.c               |   22 +++++++++++++++++-----
 src/utils/pasuspender.c         |    2 --
 15 files changed, 138 insertions(+), 23 deletions(-)

-----------------------------------------------------------------------

commit 781eb594bb77ea814976c6628483b7ba9de2db70
Author: Jason Newton <nevion at gmail.com>
Date:   Thu Oct 8 20:46:52 2009 -0700

    module-equalizer-sink: fixed equalizer state save/restore

diff --git a/src/modules/module-equalizer-sink.c b/src/modules/module-equalizer-sink.c
index 3a28b49..f5c1fb7 100755
--- a/src/modules/module-equalizer-sink.c
+++ b/src/modules/module-equalizer-sink.c
@@ -814,33 +814,35 @@ static void sink_input_state_change_cb(pa_sink_input *i, pa_sink_input_state_t s
 static void pack(char **strs, size_t len, char **packed, size_t *length){
     size_t t_len = 0;
     size_t headers = (1+len) * sizeof(uint16_t);
-    size_t offset = sizeof(uint16_t);
+    char *p;
     for(size_t i = 0; i < len; ++i){
         t_len += strlen(strs[i]);
     }
     *length = headers + t_len;
-    *packed = pa_xmalloc0(*length);
-    ((uint16_t *) *packed)[0] = (uint16_t) len;
+    p = *packed = pa_xmalloc0(*length);
+    *((uint16_t *) p) = (uint16_t) len;
+    p += sizeof(uint16_t);
     for(size_t i = 0; i < len; ++i){
         uint16_t l = strlen(strs[i]);
-        *((uint16_t *)(*packed + offset)) = l;
-        offset += sizeof(uint16_t);
-        memcpy(*packed + offset, strs[i], l);
-        offset += l;
+        *((uint16_t *) p) = (uint16_t) l;
+        p += sizeof(uint16_t);
+        memcpy(p, strs[i], l);
+        p += l;
     }
 }
 static void unpack(char *str, size_t length, char ***strs, size_t *len){
-    size_t offset = sizeof(uint16_t);
-    *len = ((uint16_t *)str)[0];
+    char *p = str;
+    *len = *((uint16_t *) p);
+    p += sizeof(uint16_t);
     *strs = pa_xnew(char *, *len);
+
     for(size_t i = 0; i < *len; ++i){
-        size_t l = *((uint16_t *)(str+offset));
-        size_t e = PA_MIN(offset + l, length) - offset;
-        offset = PA_MIN(offset + sizeof(uint16_t), length);
-        (*strs)[i] = pa_xnew(char, e + 1);
-        memcpy((*strs)[i], str + offset, e);
-        (*strs)[i][e] = '\0';
-        offset += l;
+        size_t l = *((uint16_t *) p);
+        p += sizeof(uint16_t);
+        (*strs)[i] = pa_xnew(char, l + 1);
+        memcpy((*strs)[i], p, l);
+        (*strs)[i][l] = '\0';
+        p += l;
     }
 }
 static void save_profile(struct userdata *u, size_t channel, char *name){
@@ -885,17 +887,17 @@ static void save_state(struct userdata *u){
 
     pack(u->base_profiles, u->channels, &packed, &packed_length);
     state = (float *) pa_xmalloc0(filter_state_size + packed_length);
+    memcpy(state + FILTER_STATE_SIZE, packed, packed_length);
+    pa_xfree(packed);
 
     for(size_t c = 0; c < u->channels; ++c){
         a_i = pa_aupdate_read_begin(u->a_H[c]);
-        state[c * CHANNEL_PROFILE_SIZE] = u->Xs[a_i][c];
+        state[c * CHANNEL_PROFILE_SIZE] = u->Xs[c][a_i];
         H = u->Hs[c][a_i];
-        H_n = state + c * CHANNEL_PROFILE_SIZE + 1;
+        H_n = &state[c * CHANNEL_PROFILE_SIZE + 1];
         memcpy(H_n, H, FILTER_SIZE * sizeof(float));
         pa_aupdate_read_end(u->a_H[c]);
     }
-    memcpy(((char *)state) + filter_state_size, packed, packed_length);
-    pa_xfree(packed);
 
     key.data = state_name;
     key.size = strlen(key.data);
@@ -978,13 +980,13 @@ static void load_state(struct userdata *u){
                 memcpy(u->Hs[c][a_i], H, FILTER_SIZE * sizeof(float));
                 pa_aupdate_write_end(u->a_H[c]);
             }
-            //unpack(((char *)value.data) + FILTER_STATE_SIZE, value.size - FILTER_STATE_SIZE, &names, &n_profs);
-            //n_profs = PA_MIN(n_profs, u->channels);
-            //for(size_t c = 0; c < n_profs; ++c){
-            //    pa_xfree(u->base_profiles[c]);
-            //    u->base_profiles[c] = names[c];
-            //}
-            //pa_xfree(names);
+            unpack(((char *)value.data) + FILTER_STATE_SIZE * sizeof(float), value.size - FILTER_STATE_SIZE * sizeof(float), &names, &n_profs);
+            n_profs = PA_MIN(n_profs, u->channels);
+            for(size_t c = 0; c < n_profs; ++c){
+                pa_xfree(u->base_profiles[c]);
+                u->base_profiles[c] = names[c];
+            }
+            pa_xfree(names);
         }
         pa_datum_free(&value);
     }else{

commit 8f2289c563090562d194c6336ccf4ba75a1eacd0
Author: Jason Newton <nevion at gmail.com>
Date:   Sun Oct 18 14:52:32 2009 -0700

    module-equalizer-sink:
        *fixed SSE2 optimized dsp logic (default if available)
        *cleaned up whitespace formatting (again)

diff --git a/src/modules/module-equalizer-sink.c b/src/modules/module-equalizer-sink.c
index f5c1fb7..814a00f 100755
--- a/src/modules/module-equalizer-sink.c
+++ b/src/modules/module-equalizer-sink.c
@@ -337,7 +337,7 @@ static void sink_set_mute_cb(pa_sink *s) {
     pa_sink_input_set_mute(u->sink_input, s->muted, s->save_muted);
 }
 
-
+#ifndef __SSE2__
 //reference implementation
 static void dsp_logic(
     float * restrict dst,//used as a temp array too, needs to be fft_length!
@@ -351,12 +351,12 @@ static void dsp_logic(
     fftwf_complex * restrict output_window,//The transformed window'd src
     struct userdata *u){
     //use a linear-phase sliding STFT and overlap-add method (for each channel)
-    //zero padd the data
-    memset(dst + u->window_size, 0, (u->fft_size - u->window_size) * sizeof(float));
     //window the data
     for(size_t j = 0; j < u->window_size; ++j){
         dst[j] = X * W[j] * src[j];
     }
+    //zero padd the the remaining fft window
+    memset(dst + u->window_size, 0, (u->fft_size - u->window_size) * sizeof(float));
     //Processing is done here!
     //do fft
     fftwf_execute_dft_r2c(u->forward_plan, dst, output_window);
@@ -390,112 +390,104 @@ static void dsp_logic(
         (u->samples_gathered - u->R) * sizeof(float)
     );
 }
-
+#else
 typedef float v4sf __attribute__ ((__aligned__(v_size * sizeof(float))));
 typedef union float_vector {
     float f[v_size];
     v4sf v;
-#ifdef __SSE2__
     __m128 m;
-#endif
 } float_vector_t;
 
-////regardless of sse enabled, the loops in here assume
-////16 byte aligned addresses and memory allocations divisible by v_size
-//void dsp_logic(
-//    float * restrict dst,//used as a temp array too, needs to be fft_length!
-//    float * restrict src,/*input data w/ overlap at start,
-//                               *automatically cycled in routine
-//                               */
-//    float * restrict overlap,//The size of the overlap
-//    const float X,//multipliar
-//    const float * restrict H,//The freq. magnitude scalers filter
-//    const float * restrict W,//The windowing function
-//    fftwf_complex * restrict output_window,//The transformed window'd src
-//    struct userdata *u){//Collection of constants
-      //float_vector_t x = {X, X, X, X};
-//    const size_t window_size = PA_ROUND_UP(u->window_size,v_size);
-//    const size_t fft_h = PA_ROUND_UP(FILTER_SIZE, v_size / 2);
-//    //const size_t R = PA_ROUND_UP(u->R, v_size);
-//    const size_t overlap_size = PA_ROUND_UP(u->overlap_size, v_size);
-//     overlap_size = PA_ROUND_UP(u->overlap_size, v_size);
-//
-//    //assert(u->samples_gathered >= u->R);
-//    //zero out the bit beyond the real overlap so we don't add garbage
-//    for(size_t j = overlap_size; j > u->overlap_size; --j){
-//       overlap[j-1] = 0;
-//    }
-//    //use a linear-phase sliding STFT and overlap-add method
-//    //zero padd the data
-//    memset(dst + u->window_size, 0, (u->fft_size - u->window_size)*sizeof(float));
-//    //window the data
-//    for(size_t j = 0; j < window_size; j += v_size){
-//        //dst[j] = W[j]*src[j];
-//        float_vector_t *d = (float_vector_t*) (dst+j);
-//        float_vector_t *w = (float_vector_t*) (W+j);
-//        float_vector_t *s = (float_vector_t*) (src+j);
+//regardless of sse enabled, the loops in here assume
+//16 byte aligned addresses and memory allocations divisible by v_size
+static void dsp_logic(
+    float * restrict dst,//used as a temp array too, needs to be fft_length!
+    float * restrict src,/*input data w/ overlap at start,
+                               *automatically cycled in routine
+                               */
+    float * restrict overlap,//The size of the overlap
+    const float X,//multipliar
+    const float * restrict H,//The freq. magnitude scalers filter
+    const float * restrict W,//The windowing function
+    fftwf_complex * restrict output_window,//The transformed window'd src
+    struct userdata *u){//Collection of constants
+    const size_t overlap_size = PA_ROUND_UP(u->overlap_size, v_size);
+
+
+    //assert(u->samples_gathered >= u->R);
+    //use a linear-phase sliding STFT and overlap-add method
+    for(size_t j = 0; j < u->window_size; j += v_size){
+        //dst[j] = W[j] * src[j];
+        float_vector_t *d = (float_vector_t*) (dst + j);
+        float_vector_t *w = (float_vector_t*) (W + j);
+        float_vector_t *s = (float_vector_t*) (src + j);
 //#if __SSE2__
-//        d->m = _mm_mul_ps(x->m, _mm_mul_ps(w->m, s->m));
+        d->m = _mm_mul_ps(w->m, s->m);
 //#else
-//        d->v = x->v * w->v * s->v;
+//        d->v = w->v * s->v;
 //#endif
-//    }
-//    //Processing is done here!
-//    //do fft
-//    fftwf_execute_dft_r2c(u->forward_plan, dst, output_window);
-//
-//
-//    //perform filtering - purely magnitude based
-//    for(size_t j = 0;j < fft_h; j+=v_size/2){
-//        //output_window[j][0]*=H[j];
-//        //output_window[j][1]*=H[j];
-//        float_vector_t *d = (float_vector_t*)(output_window+j);
-//        float_vector_t h;
-//        h.f[0] = h.f[1] = H[j];
-//        h.f[2] = h.f[3] = H[j+1];
+    }
+    //zero padd the the remaining fft window
+    memset(dst + u->window_size, 0, (u->fft_size - u->window_size) * sizeof(float));
+
+    //Processing is done here!
+    //do fft
+    fftwf_execute_dft_r2c(u->forward_plan, dst, output_window);
+    //perform filtering - purely magnitude based
+    for(size_t j = 0; j < FILTER_SIZE; j += v_size / 2){
+        //output_window[j][0]*=H[j];
+        //output_window[j][1]*=H[j];
+        float_vector_t *d = (float_vector_t*)( ((float *) output_window) + 2 * j);
+        float_vector_t h;
+        h.f[0] = h.f[1] = H[j];
+        h.f[2] = h.f[3] = H[j + 1];
 //#if __SSE2__
-//        d->m = _mm_mul_ps(d->m, h.m);
+        d->m = _mm_mul_ps(d->m, h.m);
 //#else
-//        d->v = d->v*h->v;
+//        d->v = d->v * h.v;
 //#endif
-//    }
-//    //inverse fft
-//    fftwf_execute_dft_c2r(u->inverse_plan, output_window, dst);
-//
-//    ////debug: tests overlaping add
-//    ////and negates ALL PREVIOUS processing
-//    ////yields a perfect reconstruction if COLA is held
-//    //for(size_t j = 0; j < u->window_size; ++j){
-//    //    dst[j] = W[j]*src[j];
-//    //}
-//
-//    //overlap add and preserve overlap component from this window (linear phase)
-//    for(size_t j = 0; j < overlap_size; j+=v_size){
-//        //dst[j]+=overlap[j];
-//        //overlap[j]+=dst[j+R];
-//        float_vector_t *d = (float_vector_t*)(dst+j);
-//        float_vector_t *o = (float_vector_t*)(overlap+j);
+    }
+
+    //inverse fft
+    fftwf_execute_dft_c2r(u->inverse_plan, output_window, dst);
+
+    ////debug: tests overlaping add
+    ////and negates ALL PREVIOUS processing
+    ////yields a perfect reconstruction if COLA is held
+    //for(size_t j = 0; j < u->window_size; ++j){
+    //    dst[j] = W[j] * src[j];
+    //}
+
+    //overlap add and preserve overlap component from this window (linear phase)
+    for(size_t j = 0; j < overlap_size; j += v_size){
+        //dst[j]+=overlap[j];
+        //overlap[j]+=dst[j+R];
+        float_vector_t *d = (float_vector_t*)(dst + j);
+        float_vector_t *o = (float_vector_t*)(overlap + j);
 //#if __SSE2__
-//        d->m = _mm_add_ps(d->m, o->m);
-//        o->m = ((float_vector_t*)(dst+u->R+j))->m;
+        d->m = _mm_add_ps(d->m, o->m);
+        o->m = ((float_vector_t*)(dst + u->R + j))->m;
 //#else
-//        d->v = d->v+o->v;
-//        o->v = ((float_vector_t*)(dst+u->R+j))->v;
+//        d->v = d->v + o->v;
+//        o->v = ((float_vector_t*)(dst + u->R + j))->v;
 //#endif
-//    }
-//    //memcpy(overlap, dst+u->R, u->overlap_size*sizeof(float));
-//
-//    //////debug: tests if basic buffering works
-//    //////shouldn't modify the signal AT ALL (beyond roundoff)
-//    //for(size_t j = 0; j < u->window_size; ++j){
-//    //    dst[j] = src[j];
-//    //}
-//
-//    //preseve the needed input for the next window's overlap
-//    memmove(src, src + u->R,
-//        u->overlap_size * sizeof(float)
-//    );
-//}
+    }
+    //memcpy(overlap, dst+u->R, u->overlap_size * sizeof(float)); //overlap preserve (debug)
+    //zero out the bit beyond the real overlap so we don't add garbage next iteration
+    memset(overlap + u->overlap_size, 0, overlap_size - u->overlap_size);
+
+    ////debug: tests if basic buffering works
+    ////shouldn't modify the signal AT ALL (beyond roundoff)
+    //for(size_t j = 0; j < u->window_size; ++j){
+    //    dst[j] = src[j];
+    //}
+
+    //preseve the needed input for the next window's overlap
+    memmove(src, src + u->R,
+        (u->samples_gathered - u->R) * sizeof(float)
+    );
+}
+#endif
 
 static void process_samples(struct userdata *u, pa_memchunk *tchunk){
     size_t fs = pa_frame_size(&(u->sink->sample_spec));
@@ -685,7 +677,7 @@ static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
             //invalidate the output q
             pa_memblockq_seek(u->input_q, - (int64_t) amount, PA_SEEK_RELATIVE, TRUE);
             pa_log("Resetting filter");
-            reset_filter(u);
+            //reset_filter(u); //this is the "proper" thing to do...
         }
     }
 
@@ -1064,9 +1056,12 @@ int pa__init(pa_module*m) {
     pa_modargs_get_value_boolean(ma, "set_default", &u->set_default);
 
     u->channels = ss.channels;
-    u->fft_size = pow(2, ceil(log(ss.rate)/log(2)));//probably unstable near corner cases of powers of 2
+    u->fft_size = pow(2, ceil(log(ss.rate) / log(2)));//probably unstable near corner cases of powers of 2
     pa_log_debug("fft size: %ld", u->fft_size);
     u->window_size = 15999;
+    if(u->window_size % 2 == 0){
+        u->window_size--;
+    }
     u->R = (u->window_size + 1) / 2;
     u->overlap_size = u->window_size - u->R;
     u->samples_gathered = 0;
@@ -1090,7 +1085,6 @@ int pa__init(pa_module*m) {
         u->a_H[c] = pa_aupdate_new();
         u->input[c] = NULL;
         u->overlap_accum[c] = alloc(u->overlap_size, sizeof(float));
-        memset(u->overlap_accum[c], 0, u->overlap_size*sizeof(float));
     }
     u->output_window = alloc((FILTER_SIZE), sizeof(fftwf_complex));
     u->forward_plan = fftwf_plan_dft_r2c_1d(u->fft_size, u->work_buffer, u->output_window, FFTW_ESTIMATE);

commit d25b9eab0fff1040713cf297f40450e0f7641870
Author: Jason Newton <jason at archer.wyred.org>
Date:   Mon Oct 19 18:28:25 2009 -0700

    module-equalizer-sink: drop source executable permissions configure.ac: add enable/disable + summary line for fftw

diff --git a/configure.ac b/configure.ac
index 77ec884..b34821a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1513,6 +1513,11 @@ if test "x${HAVE_SIMPLEDB}" = "x1" ; then
     ENABLE_SIMPLEDB=yes
 fi
 
+ENABLE_FFTW=no
+if test "x${HAVE_FFTW}" = "x1" ; then
+   ENABLE_FFTW=yes
+fi
+
 ENABLE_OPENSSL=no
 if test "x${HAVE_OPENSSL}" = "x1" ; then
    ENABLE_OPENSSL=yes
@@ -1563,6 +1568,7 @@ echo "
     Enable tdb:                    ${ENABLE_TDB}
     Enable gdbm:                   ${ENABLE_GDBM}
     Enable simple database:        ${ENABLE_SIMPLEDB}
+    Enable fftw:                   ${ENABLE_FFTW}
 
     System User:                   ${PA_SYSTEM_USER}
     System Group:                  ${PA_SYSTEM_GROUP}
diff --git a/src/modules/module-equalizer-sink.c b/src/modules/module-equalizer-sink.c
old mode 100755
new mode 100644

commit 744490a681be7356efba4160bfb29a3e76e85888
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 21:29:01 2009 +0100

    memblock: decrease tile size to 64k again

diff --git a/src/pulsecore/memblock.c b/src/pulsecore/memblock.c
index eac4a59..f38b17c 100644
--- a/src/pulsecore/memblock.c
+++ b/src/pulsecore/memblock.c
@@ -54,7 +54,7 @@
  * stored in SHM and our OS does not commit the memory before we use
  * it for the first time. */
 #define PA_MEMPOOL_SLOTS_MAX 1024
-#define PA_MEMPOOL_SLOT_SIZE (128*1024)
+#define PA_MEMPOOL_SLOT_SIZE (64*1024)
 
 #define PA_MEMEXPORT_SLOTS_MAX 128
 

commit 4538523a2999ee36e19f3f09a8ca5328185f9a67
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:26:48 2009 +0100

    libpulse: introduce pa_context_get_tile_size() call

diff --git a/src/map-file b/src/map-file
index 6f7bdac..5011122 100644
--- a/src/map-file
+++ b/src/map-file
@@ -66,6 +66,7 @@ pa_context_get_source_info_list;
 pa_context_get_source_output_info;
 pa_context_get_source_output_info_list;
 pa_context_get_state;
+pa_context_get_tile_size;
 pa_context_is_local;
 pa_context_is_pending;
 pa_context_kill_client;
diff --git a/src/pulse/context.c b/src/pulse/context.c
index 7468d0a..e33143d 100644
--- a/src/pulse/context.c
+++ b/src/pulse/context.c
@@ -1488,6 +1488,7 @@ pa_time_event* pa_context_rttime_new(pa_context *c, pa_usec_t usec, pa_time_even
     struct timeval tv;
 
     pa_assert(c);
+    pa_assert(PA_REFCNT_VALUE(c) >= 1);
     pa_assert(c->mainloop);
 
     if (usec == PA_USEC_INVALID)
@@ -1502,8 +1503,10 @@ void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec)
     struct timeval tv;
 
     pa_assert(c);
+    pa_assert(PA_REFCNT_VALUE(c) >= 1);
     pa_assert(c->mainloop);
 
+
     if (usec == PA_USEC_INVALID)
         c->mainloop->time_restart(e, NULL);
     else {
@@ -1511,3 +1514,17 @@ void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec)
         c->mainloop->time_restart(e, &tv);
     }
 }
+
+size_t pa_context_get_tile_size(pa_context *c, const pa_sample_spec *ss) {
+    size_t fs, mbs;
+
+    pa_assert(c);
+    pa_assert(PA_REFCNT_VALUE(c) >= 1);
+
+    PA_CHECK_VALIDITY_RETURN_ANY(c, !pa_detect_fork(), PA_ERR_FORKED, (size_t) -1);
+    PA_CHECK_VALIDITY_RETURN_ANY(c, !ss || pa_sample_spec_valid(ss), PA_ERR_INVALID, (size_t) -1);
+
+    fs = ss ? pa_frame_size(ss) : 1;
+    mbs = PA_ROUND_DOWN(pa_mempool_block_size_max(c->mempool), fs);
+    return PA_MAX(mbs, fs);
+}
diff --git a/src/pulse/context.h b/src/pulse/context.h
index ecff58d..6ac8ee5 100644
--- a/src/pulse/context.h
+++ b/src/pulse/context.h
@@ -255,12 +255,28 @@ pa_operation *pa_context_proplist_remove(pa_context *c, const char *const keys[]
 uint32_t pa_context_get_index(pa_context *s);
 
 /** Create a new timer event source for the specified time (wrapper
-    for mainloop->time_new). \since 0.9.16 */
+ * for mainloop->time_new). \since 0.9.16 */
 pa_time_event* pa_context_rttime_new(pa_context *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
-/** Restart a running or expired timer event source (wrapper
-    for mainloop->time_restart). \since 0.9.16 */
+
+/** Restart a running or expired timer event source (wrapper for
+ * mainloop->time_restart). \since 0.9.16 */
 void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec);
 
+/* Return the optimal block size for passing around audio buffers. It
+ * is recommended to allocate buffers of the size returned here when
+ * writing audio data to playback streams, if the latency constraints
+ * permit this. It is not recommended writing larger blocks than this
+ * because usually they will then be split up internally into chunks
+ * of this size. It is not recommended writing smaller blocks than
+ * this (unless required due to latency demands) because this
+ * increases CPU usage. If ss is NULL you will be returned the
+ * byte-exact tile size. If you pass a valid ss, then the tile size
+ * will be rounded down to multiple of the frame size. This is
+ * supposed to be used in a construct such as
+ * pa_context_get_tile_size(pa_stream_get_context(s),
+ * pa_stream_get_sample_spec(ss)); \since 0.9.20 */
+size_t pa_context_get_tile_size(pa_context *c, const pa_sample_spec *ss);
+
 PA_C_DECL_END
 
 #endif

commit 7c55d6e91d21971e187bf9602dce38cb49666cc4
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:27:14 2009 +0100

    clients: drop definition of BUFSIZE which is unused

diff --git a/src/utils/pactl.c b/src/utils/pactl.c
index 141ab5b..51de120 100644
--- a/src/utils/pactl.c
+++ b/src/utils/pactl.c
@@ -44,8 +44,6 @@
 #include <pulsecore/log.h>
 #include <pulsecore/sndfile-util.h>
 
-#define BUFSIZE (16*1024)
-
 static pa_context *context = NULL;
 static pa_mainloop_api *mainloop_api = NULL;
 
diff --git a/src/utils/pasuspender.c b/src/utils/pasuspender.c
index c327ee4..534b77b 100644
--- a/src/utils/pasuspender.c
+++ b/src/utils/pasuspender.c
@@ -45,8 +45,6 @@
 #include <pulse/pulseaudio.h>
 #include <pulsecore/macro.h>
 
-#define BUFSIZE 1024
-
 static pa_context *context = NULL;
 static pa_mainloop_api *mainloop_api = NULL;
 static char **child_argv = NULL;

commit 8678f565322ccc1bfbaa0f21024f7255ed58b933
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:27:50 2009 +0100

    pactl: include information about client context in pactl stat output

diff --git a/src/utils/pactl.c b/src/utils/pactl.c
index 51de120..7ef02ec 100644
--- a/src/utils/pactl.c
+++ b/src/utils/pactl.c
@@ -156,10 +156,23 @@ static void get_server_info_callback(pa_context *c, const pa_server_info *i, voi
         return;
     }
 
+    printf(_("Server String: %s\n"
+             "Library Protocol Version: %u\n"
+             "Server Protocol Version: %u\n"
+             "Is Local: %s\n"
+             "Client Index: %u\n"
+             "Tile Size: %zu\n"),
+             pa_context_get_server(c),
+             pa_context_get_protocol_version(c),
+             pa_context_get_server_protocol_version(c),
+             pa_yes_no(pa_context_is_local(c)),
+             pa_context_get_index(c),
+             pa_context_get_tile_size(c, NULL));
+
     pa_sample_spec_snprint(ss, sizeof(ss), &i->sample_spec);
     pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map);
 
-    printf(_("User name: %s\n"
+    printf(_("User Name: %s\n"
              "Host Name: %s\n"
              "Server Name: %s\n"
              "Server Version: %s\n"

commit 78984e439553f5e6eeb97c90ec1df9141fbe91d8
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:28:12 2009 +0100

    pactl: format cookie a little bit nicer

diff --git a/src/utils/pactl.c b/src/utils/pactl.c
index 7ef02ec..ee67c42 100644
--- a/src/utils/pactl.c
+++ b/src/utils/pactl.c
@@ -180,7 +180,7 @@ static void get_server_info_callback(pa_context *c, const pa_server_info *i, voi
              "Default Channel Map: %s\n"
              "Default Sink: %s\n"
              "Default Source: %s\n"
-             "Cookie: %08x\n"),
+             "Cookie: %04x:%04x\n"),
            i->user_name,
            i->host_name,
            i->server_name,
@@ -189,7 +189,8 @@ static void get_server_info_callback(pa_context *c, const pa_server_info *i, voi
            cm,
            i->default_sink_name,
            i->default_source_name,
-           i->cookie);
+           i->cookie >> 16,
+           i->cookie & 0xFFFFU);
 
     complete_action();
 }

commit 27c6a80ccb9ccfdd00524360938599cf2d14d4b6
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:47:21 2009 +0100

    protocol-native: declare that user configured volumes are always absolute

diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c
index d06dd4e..b7471c0 100644
--- a/src/pulsecore/protocol-native.c
+++ b/src/pulsecore/protocol-native.c
@@ -1047,8 +1047,10 @@ static playback_stream* playback_stream_new(
     data.sink = sink;
     pa_sink_input_new_data_set_sample_spec(&data, ss);
     pa_sink_input_new_data_set_channel_map(&data, map);
-    if (volume)
+    if (volume) {
         pa_sink_input_new_data_set_volume(&data, volume);
+        data.volume_is_absolute = TRUE;
+    }
     if (muted_set)
         pa_sink_input_new_data_set_muted(&data, muted);
     data.sync_base = ssync ? ssync->sink_input : NULL;

commit 2501687579e359d5032a4d165b2ffc8f5b1b8ba6
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:47:50 2009 +0100

    libpulse: explain semantics of pa_stream_connect_playback() in more detail

diff --git a/src/pulse/stream.h b/src/pulse/stream.h
index 2e8e71a..bc54a11 100644
--- a/src/pulse/stream.h
+++ b/src/pulse/stream.h
@@ -401,7 +401,22 @@ int pa_stream_is_suspended(pa_stream *s);
  * not, and negative on error. \since 0.9.11 */
 int pa_stream_is_corked(pa_stream *s);
 
-/** Connect the stream to a sink */
+/** Connect the stream to a sink. It is strongly recommended to pass
+ * NULL in both dev and volume and not to set either
+ * PA_STREAM_START_MUTED nor PA_STREAM_START_UNMUTED -- unless these
+ * options are directly dependant on user input or configuration. If
+ * you follow this rule then the sound server will have the full
+ * flexibility to choose the device, volume and mute status
+ * automatically, based on server-side policies, heuristics and stored
+ * information from previous uses. Also the server may choose to
+ * reconfigure audio devices to make other sinks/sources or
+ * capabilities available to be able to accept the stream. Before
+ * 0.9.20 it was not defined whether the 'volume' parameter was
+ * interpreted relative to the sink's current volume or treated as
+ * absolute device volume. Since 0.9.20 it is an absolute volume when
+ * the sink is in flat volume mode, and relative otherwise, thus
+ * making sure the volume passed here has always the same semantics as
+ * the volume passed to pa_context_set_sink_input_volume(). */
 int pa_stream_connect_playback(
         pa_stream *s                  /**< The stream to connect to a sink */,
         const char *dev               /**< Name of the sink to connect to, or NULL for default */ ,

commit 546bcf3f2f9711f0d08c21c3b775994844e7e2a2
Author: Lennart Poettering <lennart at poettering.net>
Date:   Wed Oct 28 23:50:42 2009 +0100

    protocol-native: if a client set volume/mute/device store it since it is user input

diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c
index b7471c0..010420e 100644
--- a/src/pulsecore/protocol-native.c
+++ b/src/pulsecore/protocol-native.c
@@ -1044,15 +1044,21 @@ static playback_stream* playback_stream_new(
     data.driver = __FILE__;
     data.module = c->options->module;
     data.client = c->client;
-    data.sink = sink;
+    if (sink) {
+        data.sink = sink;
+        data.save_sink = TRUE;
+    }
     pa_sink_input_new_data_set_sample_spec(&data, ss);
     pa_sink_input_new_data_set_channel_map(&data, map);
     if (volume) {
         pa_sink_input_new_data_set_volume(&data, volume);
         data.volume_is_absolute = TRUE;
+        data.save_volume = TRUE;
     }
-    if (muted_set)
+    if (muted_set) {
         pa_sink_input_new_data_set_muted(&data, muted);
+        data.save_muted = TRUE;
+    }
     data.sync_base = ssync ? ssync->sink_input : NULL;
     data.flags = flags;
 

commit f27a50691c8fe45bac7dd6b21fac91a359def3a1
Author: Lennart Poettering <lennart at poettering.net>
Date:   Thu Oct 29 00:46:22 2009 +0100

    libpulse: introduce PA_STREAM_RELATIVE_VOLUME

diff --git a/PROTOCOL b/PROTOCOL
index 92cc283..883b8bb 100644
--- a/PROTOCOL
+++ b/PROTOCOL
@@ -188,3 +188,9 @@ new messages:
 
   PA_COMMAND_SET_SINK_PORT
   PA_COMMAND_SET_SOURCE_PORT
+
+## v17, implemented by >= 0.9.20
+
+new flag at end of CREATE_PLAYBACK_STREAM:
+
+    bool relative_volume
diff --git a/configure.ac b/configure.ac
index b34821a..d7f55ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,7 +40,7 @@ AC_SUBST(PA_MAJORMINORMICRO, pa_major.pa_minor.pa_micro)
 AC_SUBST(PACKAGE_URL, [http://pulseaudio.org/])
 
 AC_SUBST(PA_API_VERSION, 12)
-AC_SUBST(PA_PROTOCOL_VERSION, 16)
+AC_SUBST(PA_PROTOCOL_VERSION, 17)
 
 # The stable ABI for client applications, for the version info x:y:z
 # always will hold y=z
diff --git a/src/pulse/def.h b/src/pulse/def.h
index 5d0a0b4..30a076d 100644
--- a/src/pulse/def.h
+++ b/src/pulse/def.h
@@ -276,11 +276,18 @@ typedef enum pa_stream_flags {
      * whether to create the stream in muted or in unmuted
      * state. \since 0.9.15 */
 
-    PA_STREAM_FAIL_ON_SUSPEND = 0x20000U
+    PA_STREAM_FAIL_ON_SUSPEND = 0x20000U,
     /**< If the sink/source this stream is connected to is suspended
      * during the creation of this stream, cause it to fail. If the
      * sink/source is being suspended during creation of this stream,
      * make sure this stream is terminated. \since 0.9.15 */
+
+    PA_STREAM_RELATIVE_VOLUME = 0x40000U,
+    /**< If a volume is passed when this stream is created, consider
+     * it relative to the sink's current volume, never as absolute
+     * device volume. If this is not specified the volume will be
+     * consider absolute when the sink is in flat volume mode,
+     * relative otherwise. \since 0.9.20 */
 } pa_stream_flags_t;
 
 /** \cond fulldocs */
@@ -307,6 +314,7 @@ typedef enum pa_stream_flags {
 #define PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND
 #define PA_STREAM_START_UNMUTED PA_STREAM_START_UNMUTED
 #define PA_STREAM_FAIL_ON_SUSPEND PA_STREAM_FAIL_ON_SUSPEND
+#define PA_STREAM_RELATIVE_VOLUME PA_STREAM_RELATIVE_VOLUME
 
 /** \endcond */
 
diff --git a/src/pulse/stream.c b/src/pulse/stream.c
index 2bc2b1e..2997962 100644
--- a/src/pulse/stream.c
+++ b/src/pulse/stream.c
@@ -1025,7 +1025,8 @@ static int create_stream(
                                               PA_STREAM_EARLY_REQUESTS|
                                               PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND|
                                               PA_STREAM_START_UNMUTED|
-                                              PA_STREAM_FAIL_ON_SUSPEND)), PA_ERR_INVALID);
+                                              PA_STREAM_FAIL_ON_SUSPEND|
+                                              PA_STREAM_RELATIVE_VOLUME)), PA_ERR_INVALID);
 
     PA_CHECK_VALIDITY(s->context, s->context->version >= 12 || !(flags & PA_STREAM_VARIABLE_RATE), PA_ERR_NOTSUPPORTED);
     PA_CHECK_VALIDITY(s->context, s->context->version >= 13 || !(flags & PA_STREAM_PEAK_DETECT), PA_ERR_NOTSUPPORTED);
@@ -1158,6 +1159,13 @@ static int create_stream(
         pa_tagstruct_put_boolean(t, flags & PA_STREAM_FAIL_ON_SUSPEND);
     }
 
+    if (s->context->version >= 17) {
+
+        if (s->direction == PA_STREAM_PLAYBACK)
+            pa_tagstruct_put_boolean(t, flags & PA_STREAM_RELATIVE_VOLUME);
+
+    }
+
     pa_pstream_send_tagstruct(s->context->pstream, t);
     pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);
 
diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c
index 010420e..bb29a19 100644
--- a/src/pulsecore/protocol-native.c
+++ b/src/pulsecore/protocol-native.c
@@ -1002,6 +1002,7 @@ static playback_stream* playback_stream_new(
         pa_proplist *p,
         pa_bool_t adjust_latency,
         pa_bool_t early_requests,
+        pa_bool_t relative_volume,
         int *ret) {
 
     playback_stream *s, *ssync;
@@ -1052,7 +1053,7 @@ static playback_stream* playback_stream_new(
     pa_sink_input_new_data_set_channel_map(&data, map);
     if (volume) {
         pa_sink_input_new_data_set_volume(&data, volume);
-        data.volume_is_absolute = TRUE;
+        data.volume_is_absolute = !relative_volume;
         data.save_volume = TRUE;
     }
     if (muted_set) {
@@ -1846,7 +1847,8 @@ static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, u
         early_requests = FALSE,
         dont_inhibit_auto_suspend = FALSE,
         muted_set = FALSE,
-        fail_on_suspend = FALSE;
+        fail_on_suspend = FALSE,
+        relative_volume = FALSE;
     pa_sink_input_flags_t flags = 0;
     pa_proplist *p;
     pa_bool_t volume_set = TRUE;
@@ -1939,6 +1941,15 @@ static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, u
         }
     }
 
+    if (c->version >= 17) {
+
+        if (pa_tagstruct_get_boolean(t, &relative_volume) < 0) {
+            protocol_error(c);
+            pa_proplist_free(p);
+            return;
+        }
+    }
+
     if (!pa_tagstruct_eof(t)) {
         protocol_error(c);
         pa_proplist_free(p);
@@ -1978,7 +1989,7 @@ static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, u
      * flag. For older versions we synthesize it here */
     muted_set = muted_set || muted;
 
-    s = playback_stream_new(c, sink, &ss, &map, &attr, volume_set ? &volume : NULL, muted, muted_set, syncid, &missing, flags, p, adjust_latency, early_requests, &ret);
+    s = playback_stream_new(c, sink, &ss, &map, &attr, volume_set ? &volume : NULL, muted, muted_set, syncid, &missing, flags, p, adjust_latency, early_requests, relative_volume, &ret);
     pa_proplist_free(p);
 
     CHECK_VALIDITY(c->pstream, s, tag, ret);

commit 2edb4df175ee69e386ec3923e69af6899f55e2eb
Author: Lennart Poettering <lennart at poettering.net>
Date:   Thu Oct 29 01:49:40 2009 +0100

    smoother: add comments about optimization recommendations from Jason Newton

diff --git a/src/pulsecore/time-smoother.c b/src/pulsecore/time-smoother.c
index d6c3787..1371ad5 100644
--- a/src/pulsecore/time-smoother.c
+++ b/src/pulsecore/time-smoother.c
@@ -196,6 +196,13 @@ static double avg_gradient(pa_smoother *s, pa_usec_t x) {
     int64_t ax = 0, ay = 0, k, t;
     double r;
 
+    /* FIXME: Optimization: Jason Newton suggested that instead of
+     * going through the history on each iteration we could calculated
+     * avg_gradient() as we go.
+     *
+     * Second idea: it might make sense to weight history entries:
+     * more recent entries should matter more than old ones. */
+
     /* Too few measurements, assume gradient of 1 */
     if (s->n_history < s->min_history)
         return 1;

commit e7e4e4459e6dad888d1f9a01d0b185221e1a120e
Author: Lennart Poettering <lennart at poettering.net>
Date:   Thu Oct 29 01:52:39 2009 +0100

    simd: update test cases

diff --git a/src/pulsecore/svolume_mmx.c b/src/pulsecore/svolume_mmx.c
index 745c7de..5bf72ed 100644
--- a/src/pulsecore/svolume_mmx.c
+++ b/src/pulsecore/svolume_mmx.c
@@ -25,6 +25,8 @@
 #endif
 
 #include <pulse/timeval.h>
+#include <pulse/rtclock.h>
+
 #include <pulsecore/random.h>
 #include <pulsecore/macro.h>
 #include <pulsecore/g711.h>
@@ -287,6 +289,8 @@ static void run_test (void) {
     }
     stop = pa_rtclock_now();
     pa_log_info("ref: %llu usec.", (long long unsigned int)(stop - start));
+
+    pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
 }
 #endif
 
diff --git a/src/pulsecore/svolume_sse.c b/src/pulsecore/svolume_sse.c
index 1cc4e0a..620524f 100644
--- a/src/pulsecore/svolume_sse.c
+++ b/src/pulsecore/svolume_sse.c
@@ -25,6 +25,8 @@
 #endif
 
 #include <pulse/timeval.h>
+#include <pulse/rtclock.h>
+
 #include <pulsecore/random.h>
 #include <pulsecore/macro.h>
 #include <pulsecore/g711.h>
@@ -261,7 +263,7 @@ static void run_test (void) {
 
     func = pa_get_volume_func (PA_SAMPLE_S16NE);
 
-    printf ("checking SSE %zd\n", sizeof (samples));
+    printf ("checking SSE2 %zd\n", sizeof (samples));
 
     pa_random (samples, sizeof (samples));
     memcpy (samples_ref, samples, sizeof (samples));
@@ -273,7 +275,7 @@ static void run_test (void) {
         volumes[i] = volumes[padding];
 
     func (samples_ref, volumes, CHANNELS, sizeof (samples));
-    pa_volume_s16ne_sse (samples, volumes, CHANNELS, sizeof (samples));
+    pa_volume_s16ne_sse2 (samples, volumes, CHANNELS, sizeof (samples));
     for (i = 0; i < SAMPLES; i++) {
         if (samples[i] != samples_ref[i]) {
             printf ("%d: %04x != %04x (%04x * %04x)\n", i, samples[i], samples_ref[i],
@@ -284,7 +286,7 @@ static void run_test (void) {
     start = pa_rtclock_now();
     for (j = 0; j < TIMES; j++) {
         memcpy (samples, samples_orig, sizeof (samples));
-        pa_volume_s16ne_sse (samples, volumes, CHANNELS, sizeof (samples));
+        pa_volume_s16ne_sse2 (samples, volumes, CHANNELS, sizeof (samples));
     }
     stop = pa_rtclock_now();
     pa_log_info("SSE: %llu usec.", (long long unsigned int)(stop - start));
@@ -296,6 +298,8 @@ static void run_test (void) {
     }
     stop = pa_rtclock_now();
     pa_log_info("ref: %llu usec.", (long long unsigned int)(stop - start));
+
+    pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
 }
 #endif
 #endif /* defined (__i386__) || defined (__amd64__) */

commit 754644fa6e1ec83dba85bf586a2b09c2283aa096
Merge: e7e4e44 e9ccc61
Author: Lennart Poettering <lennart at poettering.net>
Date:   Thu Oct 29 01:54:45 2009 +0100

    Merge remote branch 'origin/master'


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