LGPL SSE2 H.264 iDCT

This leaves no more GPL-only H.264 decoding asm code.

Approved by Loren.

Originally committed as revision 25092 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/x86/Makefile

@@ -6,11 +6,11 @@ YASM-OBJS-FFT-$(HAVE_AMD3DNOWEXT)      += x86/fft_3dn2.o
 YASM-OBJS-FFT-$(HAVE_SSE)              += x86/fft_sse.o
 YASM-OBJS-$(CONFIG_FFT)                += x86/fft_mmx.o                 \
                                           $(YASM-OBJS-FFT-yes)
-YASM-OBJS-$(CONFIG_GPL)                += x86/h264_idct_sse2.o          \
 
 MMX-OBJS-$(CONFIG_H264DSP)             += x86/h264dsp_mmx.o
 YASM-OBJS-$(CONFIG_H264DSP)            += x86/h264_deblock.o            \
                                           x86/h264_weight.o             \
+                                          x86/h264_idct_sse2.o          \
 
 YASM-OBJS-$(CONFIG_H264PRED)           += x86/h264_intrapred.o
 MMX-OBJS-$(CONFIG_H264PRED)            += x86/h264_intrapred_init.o

libavcodec/x86/h264_idct_sse2.asm

@@ -8,19 +8,21 @@
 ;*          Holger Lubitz <hal@duncan.ol.sub.de>
 ;*          Min Chen <chenm001.163.com>
 ;*
-;* 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 file is part of FFmpeg.
 ;*
-;* This program is distributed in the hope that it will be useful,
+;* 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 General Public License for more details.
+;* 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 General Public License
-;* along with this program; if not, write to the Free Software
-;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 ;*****************************************************************************
 
 %include "x86inc.asm"

libavcodec/x86/h264dsp_mmx.c

@@ -475,7 +475,7 @@ static void ff_h264_idct_add8_mmx2(uint8_t **dest, const int *block_offset, DCTE
     }
 }
 
-#if CONFIG_GPL && HAVE_YASM
+#if HAVE_YASM
 static void ff_h264_idct_dc_add8_mmx2(uint8_t *dst, int16_t *block, int stride)
 {
     __asm__ volatile(
@@ -820,11 +820,9 @@ void ff_h264dsp_init_x86(H264DSPContext *c)
                 c->h264_v_loop_filter_luma_intra = ff_x264_deblock_v_luma_intra_sse2;
                 c->h264_h_loop_filter_luma_intra = ff_x264_deblock_h_luma_intra_sse2;
 #endif
-#if CONFIG_GPL
                 c->h264_idct_add16 = ff_h264_idct_add16_sse2;
                 c->h264_idct_add8  = ff_h264_idct_add8_sse2;
                 c->h264_idct_add16intra = ff_h264_idct_add16intra_sse2;
-#endif
             }
             if (mm_flags&AV_CPU_FLAG_SSSE3) {
                 c->biweight_h264_pixels_tab[0]= ff_h264_biweight_16x16_ssse3;