echo " --enable-faad enable faad support via libfaad [default=no]"
echo " --enable-faadbin build faad support with runtime linking [default=no]"
echo " --enable-faac enable faac support via libfaac [default=no]"
+echo " --enable-libgsm enable gsm support via libgsm [default=no]"
echo " --enable-xvid enable xvid support via xvidcore [default=no]"
echo " --enable-x264 enable H.264 encoding via x264 [default=no]"
echo " --enable-mingw32 enable mingw32 native/cross windows compile"
dc1394="no"
network="yes"
zlib="yes"
+libgsm="no"
mp3lame="no"
libogg="no"
vorbis="no"
;;
--enable-shared-pp) shared_pp="yes"
;;
+ --enable-libgsm) libgsm="yes"
+ ;;
--enable-mp3lame) mp3lame="yes"
;;
--enable-libogg) libogg="yes"
fi
echo "gprof enabled $gprof"
echo "zlib enabled $zlib"
+echo "libgsm enabled $libgsm"
echo "mp3lame enabled $mp3lame"
echo "libogg enabled $libogg"
echo "vorbis enabled $vorbis"
echo "CONFIG_ZLIB=yes" >> config.mak
fi
+if test "$libgsm" = "yes" ; then
+ echo "#define CONFIG_LIBGSM 1" >> $TMPH
+ echo "CONFIG_LIBGSM=yes" >> config.mak
+fi
+
if test "$mp3lame" = "yes" ; then
echo "#define CONFIG_MP3LAME 1" >> $TMPH
echo "CONFIG_MP3LAME=yes" >> config.mak
register_avcodec(&x264_encoder);
#endif //CONFIG_X264_ENCODER
#endif
+#ifdef CONFIG_LIBGSM
+ register_avcodec(&libgsm_encoder);
+#endif //CONFIG_LIBGSM
#endif /* CONFIG_ENCODERS */
#ifdef CONFIG_RAWVIDEO_ENCODER
register_avcodec(&rawvideo_encoder);
#ifdef CONFIG_VORBIS_DECODER
register_avcodec(&vorbis_decoder);
#endif
+#ifdef CONFIG_LIBGSM
+ register_avcodec(&libgsm_decoder);
+#endif //CONFIG_LIBGSM
#endif /* CONFIG_DECODERS */
#ifdef AMR_NB
--- /dev/null
+/*
+ * Interface to libgsm for gsm encoding/decoding
+ * Copyright (c) 2005 Alban Bedel <albeu@free.fr>
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file libgsm.c
+ * Interface to libgsm for gsm encoding/decoding
+ */
+
+#include "avcodec.h"
+#include <gsm.h>
+
+// gsm.h miss some essential constants
+#define GSM_BLOCK_SIZE 33
+#define GSM_FRAME_SIZE 160
+
+static int libgsm_init(AVCodecContext *avctx) {
+ if (avctx->channels > 1 || avctx->sample_rate != 8000)
+ return -1;
+
+ avctx->frame_size = GSM_FRAME_SIZE;
+ avctx->block_align = GSM_BLOCK_SIZE;
+
+ avctx->priv_data = gsm_create();
+
+ avctx->coded_frame= avcodec_alloc_frame();
+ avctx->coded_frame->key_frame= 1;
+
+ return 0;
+}
+
+static int libgsm_close(AVCodecContext *avctx) {
+ gsm_destroy(avctx->priv_data);
+ avctx->priv_data = NULL;
+ return 0;
+}
+
+static int libgsm_encode_frame(AVCodecContext *avctx,
+ unsigned char *frame, int buf_size, void *data) {
+ // we need a full block
+ if(buf_size < GSM_BLOCK_SIZE) return 0;
+
+ gsm_encode(avctx->priv_data,data,frame);
+
+ return GSM_BLOCK_SIZE;
+}
+
+
+AVCodec libgsm_encoder = {
+ "gsm",
+ CODEC_TYPE_AUDIO,
+ CODEC_ID_GSM,
+ 0,
+ libgsm_init,
+ libgsm_encode_frame,
+ libgsm_close,
+};
+
+static int libgsm_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size) {
+
+ if(buf_size < GSM_BLOCK_SIZE) return 0;
+
+ if(gsm_decode(avctx->priv_data,buf,data)) return -1;
+
+ *data_size = GSM_FRAME_SIZE*2;
+ return GSM_BLOCK_SIZE;
+}
+
+AVCodec libgsm_decoder = {
+ "gsm",
+ CODEC_TYPE_AUDIO,
+ CODEC_ID_GSM,
+ 0,
+ libgsm_init,
+ NULL,
+ libgsm_close,
+ libgsm_decode_frame,
+};