lavfi/aconvert: use libswresample.

This commit also drops the planar parameter; you now need to use the 'p'
suffix in order to request a planar sample format.

1 files changed, 0 insertions, 172 deletions

diff --git a/libavfilter/af_aconvert_rematrix.c b/libavfilter/af_aconvert_rematrix.c
deleted file mode 100644
index d75ca5aa40..0000000000
--- a/libavfilter/af_aconvert_rematrix.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (c) 2011 Mina Nagy Zaki
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * audio rematrixing functions, based on functions from libavcodec/resample.c
- */
-
-#if defined(FLOATING)
-# define DIV2 /2
-#else
-# define DIV2 >>1
-#endif
-
-REMATRIX_FUNC_SIG(stereo_to_mono_packed)
-{
-    while (nb_samples >= 4) {
-        outp[0][0] = (inp[0][0] + inp[0][1]) DIV2;
-        outp[0][1] = (inp[0][2] + inp[0][3]) DIV2;
-        outp[0][2] = (inp[0][4] + inp[0][5]) DIV2;
-        outp[0][3] = (inp[0][6] + inp[0][7]) DIV2;
-        outp[0] += 4;
-        inp[0]  += 8;
-        nb_samples -= 4;
-    }
-    while (nb_samples--) {
-        outp[0][0] = (inp[0][0] + inp[0][1]) DIV2;
-        outp[0]++;
-        inp[0] += 2;
-    }
-}
-
-REMATRIX_FUNC_SIG(stereo_downmix_packed)
-{
-    while (nb_samples--) {
-        *outp[0]++ = inp[0][0];
-        *outp[0]++ = inp[0][1];
-        inp[0] += aconvert->in_nb_channels;
-    }
-}
-
-REMATRIX_FUNC_SIG(mono_to_stereo_packed)
-{
-    while (nb_samples >= 4) {
-        outp[0][0] = outp[0][1] = inp[0][0];
-        outp[0][2] = outp[0][3] = inp[0][1];
-        outp[0][4] = outp[0][5] = inp[0][2];
-        outp[0][6] = outp[0][7] = inp[0][3];
-        outp[0] += 8;
-        inp[0]  += 4;
-        nb_samples -= 4;
-    }
-    while (nb_samples--) {
-        outp[0][0] = outp[0][1] = inp[0][0];
-        outp[0] += 2;
-        inp[0]  += 1;
-    }
-}
-
-/**
- * This is for when we have more than 2 input channels, need to downmix to mono
- * and do not have a conversion formula available.  We just use first two input
- * channels - left and right. This is a placeholder until more conversion
- * functions are written.
- */
-REMATRIX_FUNC_SIG(mono_downmix_packed)
-{
-    while (nb_samples--) {
-        outp[0][0] = (inp[0][0] + inp[0][1]) DIV2;
-        inp[0] += aconvert->in_nb_channels;
-        outp[0]++;
-    }
-}
-
-REMATRIX_FUNC_SIG(mono_downmix_planar)
-{
-    FMT_TYPE *out = outp[0];
-
-    while (nb_samples >= 4) {
-        out[0] = (inp[0][0] + inp[1][0]) DIV2;
-        out[1] = (inp[0][1] + inp[1][1]) DIV2;
-        out[2] = (inp[0][2] + inp[1][2]) DIV2;
-        out[3] = (inp[0][3] + inp[1][3]) DIV2;
-        out    += 4;
-        inp[0] += 4;
-        inp[1] += 4;
-        nb_samples -= 4;
-    }
-    while (nb_samples--) {
-        out[0] = (inp[0][0] + inp[1][0]) DIV2;
-        out++;
-        inp[0]++;
-        inp[1]++;
-    }
-}
-
-/* Stereo to 5.1 output */
-REMATRIX_FUNC_SIG(stereo_to_surround_5p1_packed)
-{
-    while (nb_samples--) {
-      outp[0][0] = inp[0][0];  /* left */
-      outp[0][1] = inp[0][1];  /* right */
-      outp[0][2] = (inp[0][0] + inp[0][1]) DIV2; /* center */
-      outp[0][3] = 0;          /* low freq */
-      outp[0][4] = 0;          /* FIXME: left surround: -3dB or -6dB or -9dB of stereo left  */
-      outp[0][5] = 0;          /* FIXME: right surroud: -3dB or -6dB or -9dB of stereo right */
-      inp[0]  += 2;
-      outp[0] += 6;
-    }
-}
-
-REMATRIX_FUNC_SIG(stereo_to_surround_5p1_planar)
-{
-    while (nb_samples--) {
-      *outp[0]++ = *inp[0];    /* left */
-      *outp[1]++ = *inp[1];    /* right */
-      *outp[2]++ = (*inp[0] + *inp[1]) DIV2; /* center */
-      *outp[3]++ = 0;          /* low freq */
-      *outp[4]++ = 0;          /* FIXME: left surround: -3dB or -6dB or -9dB of stereo left  */
-      *outp[5]++ = 0;          /* FIXME: right surroud: -3dB or -6dB or -9dB of stereo right */
-      inp[0]++; inp[1]++;
-    }
-}
-
-
-/*
-5.1 to stereo input: [fl, fr, c, lfe, rl, rr]
-- Left = front_left + rear_gain * rear_left + center_gain * center
-- Right = front_right + rear_gain * rear_right + center_gain * center
-Where rear_gain is usually around 0.5-1.0 and
-      center_gain is almost always 0.7 (-3 dB)
-*/
-REMATRIX_FUNC_SIG(surround_5p1_to_stereo_packed)
-{
-    while (nb_samples--) {
-        *outp[0]++ = inp[0][0] + (0.5 * inp[0][4]) + (0.7 * inp[0][2]); //FIXME CLIPPING!
-        *outp[0]++ = inp[0][1] + (0.5 * inp[0][5]) + (0.7 * inp[0][2]); //FIXME CLIPPING!
-
-        inp[0] += 6;
-    }
-}
-
-REMATRIX_FUNC_SIG(surround_5p1_to_stereo_planar)
-{
-    while (nb_samples--) {
-        *outp[0]++ = *inp[0] + (0.5 * *inp[4]) + (0.7 * *inp[2]); //FIXME CLIPPING!
-        *outp[1]++ = *inp[1] + (0.5 * *inp[5]) + (0.7 * *inp[2]); //FIXME CLIPPING!
-
-        inp[0]++; inp[1]++; inp[2]++; inp[3]++; inp[4]++; inp[5]++;
-    }
-}
-
-#undef DIV2
-#undef REMATRIX_FUNC_NAME
-#undef FMT_TYPE