* #27232: jni: added pjproject checkout as regular git content
We will remove it once the next release of pjsip (with Android support)
comes out and is merged into SFLphone.
diff --git a/jni/pjproject-android/.svn/pristine/cf/cf77a859e790b33202e534f501c71bc76791fac4.svn-base b/jni/pjproject-android/.svn/pristine/cf/cf77a859e790b33202e534f501c71bc76791fac4.svn-base
new file mode 100644
index 0000000..7f1066f
--- /dev/null
+++ b/jni/pjproject-android/.svn/pristine/cf/cf77a859e790b33202e534f501c71bc76791fac4.svn-base
@@ -0,0 +1,346 @@
+/* $Id$ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <pjmedia/resample.h>
+
+#include <pjmedia/errno.h>
+#include <pj/assert.h>
+#include <pj/log.h>
+#include <pj/pool.h>
+
+
+#if PJMEDIA_RESAMPLE_IMP==PJMEDIA_RESAMPLE_LIBRESAMPLE
+
+#include <third_party/resample/include/resamplesubs.h>
+
+#define THIS_FILE "resample.c"
+
+
+
+struct pjmedia_resample
+{
+ double factor; /* Conversion factor = rate_out / rate_in. */
+ pj_bool_t large_filter; /* Large filter? */
+ pj_bool_t high_quality; /* Not fast? */
+ unsigned xoff; /* History and lookahead size, in samples */
+ unsigned frame_size; /* Samples per frame. */
+ unsigned channel_cnt; /* Channel count. */
+
+ /* Buffer for monochannel */
+ pj_int16_t *buffer; /* Input buffer. */
+
+ /* Buffer for multichannel */
+ pj_int16_t **in_buffer; /* Array of input buffer for each channel. */
+ pj_int16_t *tmp_buffer; /* Temporary output buffer for processing. */
+};
+
+
+PJ_DEF(pj_status_t) pjmedia_resample_create( pj_pool_t *pool,
+ pj_bool_t high_quality,
+ pj_bool_t large_filter,
+ unsigned channel_count,
+ unsigned rate_in,
+ unsigned rate_out,
+ unsigned samples_per_frame,
+ pjmedia_resample **p_resample)
+{
+ pjmedia_resample *resample;
+
+ PJ_ASSERT_RETURN(pool && p_resample && rate_in &&
+ rate_out && samples_per_frame, PJ_EINVAL);
+
+ resample = PJ_POOL_ZALLOC_T(pool, pjmedia_resample);
+ PJ_ASSERT_RETURN(resample, PJ_ENOMEM);
+
+ /*
+ * If we're downsampling, always use the fast algorithm since it seems
+ * to yield the same quality.
+ */
+ if (rate_out < rate_in) {
+ //no this is not a good idea. It sounds pretty good with speech,
+ //but very poor with background noise etc.
+ //high_quality = 0;
+ }
+
+ resample->factor = rate_out * 1.0 / rate_in;
+ resample->large_filter = large_filter;
+ resample->high_quality = high_quality;
+ resample->channel_cnt = channel_count;
+ resample->frame_size = samples_per_frame;
+
+ if (high_quality) {
+ /* This is a bug in xoff calculation, thanks Stephane Lussier
+ * of Macadamian dot com.
+ * resample->xoff = large_filter ? 32 : 6;
+ */
+ resample->xoff = res_GetXOFF(resample->factor, (char)large_filter);
+ } else {
+ resample->xoff = 1;
+ }
+
+ if (channel_count == 1) {
+ unsigned size;
+
+ /* Allocate input buffer */
+ size = (samples_per_frame + 2*resample->xoff) * sizeof(pj_int16_t);
+ resample->buffer = (pj_int16_t*) pj_pool_alloc(pool, size);
+ PJ_ASSERT_RETURN(resample->buffer, PJ_ENOMEM);
+
+ pjmedia_zero_samples(resample->buffer, resample->xoff*2);
+
+ } else if (channel_count > 1) {
+ unsigned i, size;
+
+ /* Allocate input buffer table */
+ size = channel_count * sizeof(pj_int16_t*);
+ resample->in_buffer = (pj_int16_t**)pj_pool_alloc(pool, size);
+
+ /* Allocate input buffer */
+ size = (samples_per_frame/channel_count + 2*resample->xoff) *
+ sizeof(pj_int16_t);
+ for (i = 0; i < channel_count; ++i) {
+ resample->in_buffer[i] = (pj_int16_t*)pj_pool_alloc(pool, size);
+ PJ_ASSERT_RETURN(resample->in_buffer, PJ_ENOMEM);
+ pjmedia_zero_samples(resample->in_buffer[i], resample->xoff*2);
+ }
+
+ /* Allocate temporary output buffer */
+ size = (unsigned) (resample->frame_size * sizeof(pj_int16_t) *
+ resample->factor / channel_count + 0.5);
+ resample->tmp_buffer = (pj_int16_t*) pj_pool_alloc(pool, size);
+ PJ_ASSERT_RETURN(resample->tmp_buffer, PJ_ENOMEM);
+ }
+
+ *p_resample = resample;
+
+ PJ_LOG(5,(THIS_FILE, "resample created: %s qualiy, %s filter, in/out "
+ "rate=%d/%d",
+ (high_quality?"high":"low"),
+ (large_filter?"large":"small"),
+ rate_in, rate_out));
+ return PJ_SUCCESS;
+}
+
+
+
+PJ_DEF(void) pjmedia_resample_run( pjmedia_resample *resample,
+ const pj_int16_t *input,
+ pj_int16_t *output )
+{
+ PJ_ASSERT_ON_FAIL(resample, return);
+
+ /* Okay chaps, here's how we do resampling.
+ *
+ * The original resample algorithm requires xoff samples *before* the
+ * input buffer as history, and another xoff samples *after* the
+ * end of the input buffer as lookahead. Since application can only
+ * supply framesize buffer on each run, PJMEDIA needs to arrange the
+ * buffer to meet these requirements.
+ *
+ * So here comes the trick.
+ *
+ * First of all, because of the history and lookahead requirement,
+ * resample->buffer need to accomodate framesize+2*xoff samples in its
+ * buffer. This is done when the buffer is created.
+ *
+ * On the first run, the input frame (supplied by application) is
+ * copied to resample->buffer at 2*xoff position. The first 2*xoff
+ * samples are initially zeroed (in the initialization). The resample
+ * algorithm then invoked at resample->buffer+xoff ONLY, thus giving
+ * it one xoff at the beginning as zero, and one xoff at the end
+ * as the end of the original input. The resample algorithm will see
+ * that the first xoff samples in the input as zero.
+ *
+ * So here's the layout of resample->buffer on the first run.
+ *
+ * run 0
+ * +------+------+--------------+
+ * | 0000 | 0000 | frame0... |
+ * +------+------+--------------+
+ * ^ ^ ^ ^
+ * 0 xoff 2*xoff size+2*xoff
+ *
+ * (Note again: resample algorithm is called at resample->buffer+xoff)
+ *
+ * At the end of the run, 2*xoff samples from the end of
+ * resample->buffer are copied to the beginning of resample->buffer.
+ * The first xoff part of this will be used as history for the next
+ * run, and the second xoff part of this is actually the start of
+ * resampling for the next run.
+ *
+ * And the first run completes, the function returns.
+ *
+ *
+ * On the next run, the input frame supplied by application is again
+ * copied at 2*xoff position in the resample->buffer, and the
+ * resample algorithm is again invoked at resample->buffer+xoff
+ * position. So effectively, the resample algorithm will start its
+ * operation on the last xoff from the previous frame, and gets the
+ * history from the last 2*xoff of the previous frame, and the look-
+ * ahead from the last xoff of current frame.
+ *
+ * So on this run, the buffer layout is:
+ *
+ * run 1
+ * +------+------+--------------+
+ * | frm0 | frm0 | frame1... |
+ * +------+------+--------------+
+ * ^ ^ ^ ^
+ * 0 xoff 2*xoff size+2*xoff
+ *
+ * As you can see from above diagram, the resampling algorithm is
+ * actually called from the last xoff part of previous frame (frm0).
+ *
+ * And so on the process continues for the next frame, and the next,
+ * and the next, ...
+ *
+ */
+ if (resample->channel_cnt == 1) {
+ pj_int16_t *dst_buf;
+ const pj_int16_t *src_buf;
+
+ /* Prepare input frame */
+ dst_buf = resample->buffer + resample->xoff*2;
+ pjmedia_copy_samples(dst_buf, input, resample->frame_size);
+
+ /* Resample */
+ if (resample->high_quality) {
+ res_Resample(resample->buffer + resample->xoff, output,
+ resample->factor, (pj_uint16_t)resample->frame_size,
+ (char)resample->large_filter, (char)PJ_TRUE);
+ } else {
+ res_SrcLinear(resample->buffer + resample->xoff, output,
+ resample->factor, (pj_uint16_t)resample->frame_size);
+ }
+
+ /* Update history */
+ dst_buf = resample->buffer;
+ src_buf = input + resample->frame_size - resample->xoff*2;
+ pjmedia_copy_samples(dst_buf, src_buf, resample->xoff * 2);
+
+ } else { /* Multichannel */
+ unsigned i, j;
+
+ for (i = 0; i < resample->channel_cnt; ++i) {
+ pj_int16_t *dst_buf;
+ const pj_int16_t *src_buf;
+ unsigned mono_frm_sz_in;
+ unsigned mono_frm_sz_out;
+
+ mono_frm_sz_in = resample->frame_size / resample->channel_cnt;
+ mono_frm_sz_out = (unsigned)(mono_frm_sz_in * resample->factor + 0.5);
+
+ /* Deinterleave input */
+ dst_buf = resample->in_buffer[i] + resample->xoff*2;
+ src_buf = input + i;
+ for (j = 0; j < mono_frm_sz_in; ++j) {
+ *dst_buf++ = *src_buf;
+ src_buf += resample->channel_cnt;
+ }
+
+ /* Resample this channel */
+ if (resample->high_quality) {
+ res_Resample(resample->in_buffer[i] + resample->xoff,
+ resample->tmp_buffer, resample->factor,
+ (pj_uint16_t)mono_frm_sz_in,
+ (char)resample->large_filter, (char)PJ_TRUE);
+ } else {
+ res_SrcLinear( resample->in_buffer[i],
+ resample->tmp_buffer,
+ resample->factor,
+ (pj_uint16_t)mono_frm_sz_in);
+ }
+
+ /* Update history */
+ dst_buf = resample->in_buffer[i];
+ src_buf = resample->in_buffer[i] + mono_frm_sz_in;
+ pjmedia_copy_samples(dst_buf, src_buf, resample->xoff * 2);
+
+ /* Reinterleave output */
+ dst_buf = output + i;
+ src_buf = resample->tmp_buffer;
+ for (j = 0; j < mono_frm_sz_out; ++j) {
+ *dst_buf = *src_buf++;
+ dst_buf += resample->channel_cnt;
+ }
+ }
+ }
+}
+
+PJ_DEF(unsigned) pjmedia_resample_get_input_size(pjmedia_resample *resample)
+{
+ PJ_ASSERT_RETURN(resample != NULL, 0);
+ return resample->frame_size;
+}
+
+PJ_DEF(void) pjmedia_resample_destroy(pjmedia_resample *resample)
+{
+ PJ_UNUSED_ARG(resample);
+}
+
+
+#elif PJMEDIA_RESAMPLE_IMP==PJMEDIA_RESAMPLE_NONE
+
+/*
+ * This is the configuration when sample rate conversion is disabled.
+ */
+PJ_DEF(pj_status_t) pjmedia_resample_create( pj_pool_t *pool,
+ pj_bool_t high_quality,
+ pj_bool_t large_filter,
+ unsigned channel_count,
+ unsigned rate_in,
+ unsigned rate_out,
+ unsigned samples_per_frame,
+ pjmedia_resample **p_resample)
+{
+ PJ_UNUSED_ARG(pool);
+ PJ_UNUSED_ARG(high_quality);
+ PJ_UNUSED_ARG(large_filter);
+ PJ_UNUSED_ARG(channel_count);
+ PJ_UNUSED_ARG(rate_in);
+ PJ_UNUSED_ARG(rate_out);
+ PJ_UNUSED_ARG(samples_per_frame);
+ PJ_UNUSED_ARG(p_resample);
+
+ return PJ_EINVALIDOP;
+}
+
+PJ_DEF(void) pjmedia_resample_run( pjmedia_resample *resample,
+ const pj_int16_t *input,
+ pj_int16_t *output )
+{
+ PJ_UNUSED_ARG(resample);
+ PJ_UNUSED_ARG(input);
+ PJ_UNUSED_ARG(output);
+}
+
+PJ_DEF(unsigned) pjmedia_resample_get_input_size(pjmedia_resample *resample)
+{
+ PJ_UNUSED_ARG(resample);
+ return 0;
+}
+
+PJ_DEF(void) pjmedia_resample_destroy(pjmedia_resample *resample)
+{
+ PJ_UNUSED_ARG(resample);
+}
+
+#endif /* PJMEDIA_RESAMPLE_IMP */
+