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authorMichael Niedermayer <michaelni@gmx.at>2012-07-04 20:39:50 +0200
committerMichael Niedermayer <michaelni@gmx.at>2012-07-04 21:03:28 +0200
commit039e9fe01ca27606a0ec1a944d51041541e10aab (patch)
tree9fc96837e878cdb2c13b6016d9f3d69785570488 /libavcodec/flacdsp_template.c
parent8b421fad24acbba69935caf2a2775bd04f8a707a (diff)
parent7c29377b702783680b223a12503df784b1808086 (diff)
downloadffmpeg-039e9fe01ca27606a0ec1a944d51041541e10aab.tar.gz
Merge remote-tracking branch 'qatar/master'
* qatar/master: (29 commits) lavfi: reclassify showfiltfmts as a TESTPROG graph2dot: fix printf format specifier swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. vp8: loopfilter >=sse2 functions need aligned stack on x86-32. amr: remove shift out of the AMR_BIT() macro. dsputilenc: group yasm and inline asm function pointer assignment. mov: use forward declaration of a function instead of a table. Clarify Doxygen comment for FF_API_* #defines. configure: simplify get_version() Create version.h headers for libraries that lack them gitignore: Use full path instead of relative path to specify patterns mpegvideo: remove VLAs Add XTEA encryption support in libavutil Add Blowfish encryption support in libavutil eval: Add the isinf() function and tests for it flacdec: move lpc filter to flacdsp flacdec: split off channel decorrelation as flacdsp avplay: Add an option for not limiting the input buffer size FATE: add a test for WMA cover art. FATE: add a test for apetag cover art ... Conflicts: .gitignore configure ffplay.c libavcodec/Makefile libavcodec/error_resilience.c libavcodec/mpegvideo.c libavcodec/ratecontrol.c libavdevice/avdevice.h libavfilter/Makefile libavfilter/filtfmts.c libavfilter/version.h libavformat/mov.c libavformat/version.h libavutil/Makefile libavutil/avutil.h libavutil/version.h libswscale/swscale.h libswscale/x86/swscale_mmx.c tests/fate/libavutil.mak tests/lavfi-regression.sh tools/graph2dot.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/flacdsp_template.c')
-rw-r--r--libavcodec/flacdsp_template.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/libavcodec/flacdsp_template.c b/libavcodec/flacdsp_template.c
new file mode 100644
index 0000000000..808b20d41d
--- /dev/null
+++ b/libavcodec/flacdsp_template.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
+ *
+ * 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
+ */
+
+#include <stdint.h>
+
+#undef FUNC
+#undef sample
+
+#if SAMPLE_SIZE == 32
+# define FUNC(n) n ## _32
+# define sample int32_t
+#else
+# define FUNC(n) n ## _16
+# define sample int16_t
+#endif
+
+static void FUNC(flac_decorrelate_indep_c)(uint8_t **out, int32_t **in,
+ int channels, int len, int shift)
+{
+ sample *samples = (sample *) out[0];
+ int i, j;
+
+ for (j = 0; j < len; j++)
+ for (i = 0; i < channels; i++)
+ *samples++ = in[i][j] << shift;
+}
+
+static void FUNC(flac_decorrelate_ls_c)(uint8_t **out, int32_t **in,
+ int channels, int len, int shift)
+{
+ sample *samples = (sample *) out[0];
+ int i;
+
+ for (i = 0; i < len; i++) {
+ int a = in[0][i];
+ int b = in[1][i];
+ *samples++ = a << shift;
+ *samples++ = (a - b) << shift;
+ }
+}
+
+static void FUNC(flac_decorrelate_rs_c)(uint8_t **out, int32_t **in,
+ int channels, int len, int shift)
+{
+ sample *samples = (sample *) out[0];
+ int i;
+
+ for (i = 0; i < len; i++) {
+ int a = in[0][i];
+ int b = in[1][i];
+ *samples++ = (a + b) << shift;
+ *samples++ = b << shift;
+ }
+}
+
+static void FUNC(flac_decorrelate_ms_c)(uint8_t **out, int32_t **in,
+ int channels, int len, int shift)
+{
+ sample *samples = (sample *) out[0];
+ int i;
+
+ for (i = 0; i < len; i++) {
+ int a = in[0][i];
+ int b = in[1][i];
+ a -= b >> 1;
+ *samples++ = (a + b) << shift;
+ *samples++ = a << shift;
+ }
+}