media/libspeex_resampler/truncation.patch
author Benoit Girard <b56girard@gmail.com>
Tue, 16 Jul 2013 16:17:18 -0400
changeset 154501 b5319d82251e332db56a65a778f8b159511eb5ac
parent 128708 79addb03eb8672db2be1251846a234696550e316
permissions -rw-r--r--
Bug 873378 - Add a limit on mobile of 20 layers per container layer. r=roc

From 5adadc5626ee2d5d3a3ca21e70fd195b9d002a0b Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jmvalin@jmvalin.ca>
Date: Wed, 1 Aug 2012 13:19:38 -0400
Subject: [PATCH] Properly save in_len for multiple channels in the resampler.

This fixes issues with clicking in one channel and/or truncation
with some unusual sample rates.
---
 src/resample.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/resample.c b/src/resample.c
index 84aaf59..6e92bd0 100644
--- a/src/resample.c
+++ b/src/resample.c
@@ -966,13 +966,15 @@ SPX_RESAMPLE_EXPORT int speex_resampler_process_interleaved_float(SpeexResampler
 {
    spx_uint32_t i;
    int istride_save, ostride_save;
-   spx_uint32_t bak_len = *out_len;
+   spx_uint32_t bak_out_len = *out_len;
+   spx_uint32_t bak_in_len = *in_len;
    istride_save = st->in_stride;
    ostride_save = st->out_stride;
    st->in_stride = st->out_stride = st->nb_channels;
    for (i=0;i<st->nb_channels;i++)
    {
-      *out_len = bak_len;
+      *out_len = bak_out_len;
+      *in_len = bak_in_len;
       if (in != NULL)
          speex_resampler_process_float(st, i, in+i, in_len, out+i, out_len);
       else
@@ -987,13 +989,15 @@ SPX_RESAMPLE_EXPORT int speex_resampler_process_interleaved_int(SpeexResamplerSt
 {
    spx_uint32_t i;
    int istride_save, ostride_save;
-   spx_uint32_t bak_len = *out_len;
+   spx_uint32_t bak_out_len = *out_len;
+   spx_uint32_t bak_in_len = *in_len;
    istride_save = st->in_stride;
    ostride_save = st->out_stride;
    st->in_stride = st->out_stride = st->nb_channels;
    for (i=0;i<st->nb_channels;i++)
    {
-      *out_len = bak_len;
+      *out_len = bak_out_len;
+      *in_len = bak_in_len;
       if (in != NULL)
          speex_resampler_process_int(st, i, in+i, in_len, out+i, out_len);
       else
-- 
1.7.2.5