Remove support for nonfree libamr library for AMR-NB/WB decoding/encoding.

libopencore can now be used as a replacement except for AMR-WB encoding.

Originally committed as revision 19365 to svn://svn.ffmpeg.org/ffmpeg/trunk

6 files changed, 7 insertions, 487 deletions

diff --git a/LICENSE b/LICENSE
index ca5bc30bdc..7a94f8db5f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -44,6 +44,6 @@ is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of
 those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
 version needs to be upgraded by passing --enable-version3 to configure.
 
-The nonfree external libraries libamrnb, libamrwb and libfaac can be hooked up
-in FFmpeg. You need to pass --enable-nonfree to configure to enable them. Employ
-this option with care as FFmpeg then becomes nonfree and unredistributable.
+The nonfree external library libfaac can be hooked up in FFmpeg. You need to
+pass --enable-nonfree to configure to enable it. Employ this option with care
+as FFmpeg then becomes nonfree and unredistributable.
diff --git a/configure b/configure
index 6b74a029d0..799827340f 100755
--- a/configure
+++ b/configure
@@ -154,8 +154,6 @@ show_help(){
   echo "External library support:"
   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
   echo "  --enable-bzlib           enable bzlib [autodetect]"
-  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
-  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
   echo "  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
   echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
@@ -794,8 +792,6 @@ CONFIG_LIST="
     gray
     hardcoded_tables
     ipv6
-    libamr_nb
-    libamr_wb
     libdc1394
     libdirac
     libfaac
@@ -1115,10 +1111,6 @@ zmbv_encoder_select="zlib"
 h264_parser_select="golomb"
 
 # external libraries
-libamr_nb_decoder_deps="libamr_nb"
-libamr_nb_encoder_deps="libamr_nb"
-libamr_wb_decoder_deps="libamr_wb"
-libamr_wb_encoder_deps="libamr_wb"
 libdirac_decoder_deps="libdirac !libschroedinger"
 libdirac_encoder_deps="libdirac"
 libfaac_encoder_deps="libfaac"
@@ -1792,8 +1784,6 @@ die_license_disabled gpl libxvid
 die_license_disabled gpl postproc
 die_license_disabled gpl x11grab
 
-die_license_disabled nonfree libamr_nb
-die_license_disabled nonfree libamr_wb
 die_license_disabled nonfree libfaac
 
 die_license_disabled version3 libopencore_amrnb
@@ -2097,8 +2087,6 @@ done
 
 # these are off by default, so fail if requested and not available
 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
-enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Decoder_Interface_init -lamrnb -lm
-enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
@@ -2409,8 +2397,6 @@ if enabled sdl_too_old; then
 fi
 echo "Sun medialib support      ${mlib-no}"
 echo "AVISynth enabled          ${avisynth-no}"
-echo "libamr-nb support         ${libamr_nb-no}"
-echo "libamr-wb support         ${libamr_wb-no}"
 echo "libdc1394 support         ${libdc1394-no}"
 echo "libdirac enabled          ${libdirac-no}"
 echo "libfaac enabled           ${libfaac-no}"
diff --git a/doc/general.texi b/doc/general.texi
index 5e73af9eb4..a360878dbf 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -17,9 +17,7 @@ explicitly requested by passing the appropriate flags to @file{./configure}.
 @section AMR
 
 AMR comes in two different flavors, wideband and narrowband. FFmpeg can make
-use of the AMR wideband (floating-point mode) and the AMR narrowband
-(floating-point mode) reference decoders and encoders (libamr) as well as
-the OpenCORE libraries for AMR-NB decoding/encoding and AMR-WB decoding.
+use of the OpenCORE libraries for AMR-NB decoding/encoding and AMR-WB decoding.
 
 @subsection OpenCORE
 
@@ -33,17 +31,6 @@ incompatible with the LGPL version 2.1 and GPL version 2. You have to
 upgrade FFmpeg's license to LGPL version 3 (or if you have enabled
 GPL components, GPL version 3) to use it.
 
-@subsection libamr
-
-Go to @url{http://www.penguin.cz/~utx/amr} and follow the instructions for
-installing the libraries. Then pass @code{--enable-libamr-nb} and/or
-@code{--enable-libamr-wb} to configure to enable the libraries.
-
-Note that libamr is copyrighted without any sort of license grant. This means
-that you can use it if you legally obtained it but you are not allowed to
-redistribute it in any way. @strong{Any FFmpeg binaries with libamr support
-you create are non-free and unredistributable!}
-
 
 @chapter Supported File Formats and Codecs
 
@@ -537,10 +524,9 @@ following image formats are supported:
     @tab Used in Westwood Studios games like Command and Conquer.
 @item ADPCM Yamaha           @tab  X  @tab  X
 @item AMR-NB                 @tab  E  @tab  E
-    @tab supported through external libraries libamrnb and libopencore-amrnb
-@item AMR-WB                 @tab  E  @tab  E
-    @tab decoding supported through external libraries libamrwb and libopencore-amrwb,
-         encoding supported through external library libamrwb
+    @tab supported through external library libopencore-amrnb
+@item AMR-WB                 @tab     @tab  E
+    @tab decoding supported through external library libopencore-amrwb
 @item Apple lossless audio   @tab  X  @tab  X
     @tab QuickTime fourcc 'alac'
 @item Atrac 3                @tab     @tab  X
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 503c5d4a3c..3c6467b328 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -382,8 +382,6 @@ OBJS-$(CONFIG_OGG_MUXER)               += xiph.o flacdec.o flacdata.o flac.o
 OBJS-$(CONFIG_RTP_MUXER)               += mpegvideo.o
 
 # external codec libraries
-OBJS-$(CONFIG_LIBAMR_NB)               += libamr.o
-OBJS-$(CONFIG_LIBAMR_WB)               += libamr.o
 OBJS-$(CONFIG_LIBDIRAC_DECODER)        += libdiracdec.o
 OBJS-$(CONFIG_LIBDIRAC_ENCODER)        += libdiracenc.o libdirac_libschro.o
 OBJS-$(CONFIG_LIBFAAC)                 += libfaac.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 5a83c37553..6a171147f8 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -303,8 +303,6 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC  (XSUB, xsub);
 
     /* external libraries */
-    REGISTER_ENCDEC  (LIBAMR_NB, libamr_nb);
-    REGISTER_ENCDEC  (LIBAMR_WB, libamr_wb);
     REGISTER_ENCDEC  (LIBDIRAC, libdirac);
     REGISTER_ENCODER (LIBFAAC, libfaac);
     REGISTER_DECODER (LIBFAAD, libfaad);
diff --git a/libavcodec/libamr.c b/libavcodec/libamr.c
deleted file mode 100644
index 4610931320..0000000000
--- a/libavcodec/libamr.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/*
- * AMR Audio decoder stub
- * Copyright (c) 2003 the ffmpeg project
- *
- * 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
- * Adaptive Multi-Rate (AMR) Audio decoder stub.
- *
- * This code implements both an AMR-NarrowBand (AMR-NB) and an AMR-WideBand
- * (AMR-WB) audio encoder/decoder through external reference code from
- * http://www.3gpp.org/. The license of the code from 3gpp is unclear so you
- * have to download the code separately.
- *
- * \section AMR-NB
- *
- * The float version (default) can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-610.zip
- *
- * \subsection Specification
- * The specification for AMR-NB can be found in TS 26.071
- * (http://www.3gpp.org/ftp/Specs/html-info/26071.htm) and some other
- * info at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm.
- *
- * \section AMR-WB
- *
- * The reference code can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-600.zip
- *
- * \subsection Specification
- * The specification for AMR-WB can be found in TS 26.171
- * (http://www.3gpp.org/ftp/Specs/html-info/26171.htm) and some other
- * info at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm.
- *
- */
-
-#include "avcodec.h"
-
-static void amr_decode_fix_avctx(AVCodecContext *avctx)
-{
-    const int is_amr_wb = 1 + (avctx->codec_id == CODEC_ID_AMR_WB);
-
-    if (!avctx->sample_rate)
-        avctx->sample_rate = 8000 * is_amr_wb;
-
-    if (!avctx->channels)
-        avctx->channels = 1;
-
-    avctx->frame_size = 160 * is_amr_wb;
-    avctx->sample_fmt = SAMPLE_FMT_S16;
-}
-
-#if CONFIG_LIBAMR_NB
-
-#include <amrnb/interf_dec.h>
-#include <amrnb/interf_enc.h>
-
-static const char nb_bitrate_unsupported[] =
-    "bitrate not supported: use one of 4.75k, 5.15k, 5.9k, 6.7k, 7.4k, 7.95k, 10.2k or 12.2k\n";
-
-typedef struct AMR_bitrates {
-    int       rate;
-    enum Mode mode;
-} AMR_bitrates;
-
-/* Match desired bitrate */
-static int getBitrateMode(int bitrate)
-{
-    /* make the correspondance between bitrate and mode */
-    AMR_bitrates rates[] = { { 4750, MR475},
-                             { 5150, MR515},
-                             { 5900, MR59},
-                             { 6700, MR67},
-                             { 7400, MR74},
-                             { 7950, MR795},
-                             {10200, MR102},
-                             {12200, MR122}, };
-    int i;
-
-    for (i = 0; i < 8; i++)
-        if (rates[i].rate == bitrate)
-            return rates[i].mode;
-    /* no bitrate matching, return an error */
-    return -1;
-}
-
-typedef struct AMRContext {
-    int   frameCount;
-    void *decState;
-    int  *enstate;
-    int   enc_bitrate;
-} AMRContext;
-
-static av_cold int amr_nb_decode_init(AVCodecContext *avctx)
-{
-    AMRContext *s = avctx->priv_data;
-
-    s->frameCount = 0;
-    s->decState   = Decoder_Interface_init();
-    if (!s->decState) {
-        av_log(avctx, AV_LOG_ERROR, "Decoder_Interface_init error\r\n");
-        return -1;
-    }
-
-    amr_decode_fix_avctx(avctx);
-
-    if (avctx->channels > 1) {
-        av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
-        return -1;
-    }
-
-    return 0;
-}
-
-static av_cold int amr_nb_decode_close(AVCodecContext *avctx)
-{
-    AMRContext *s = avctx->priv_data;
-
-    Decoder_Interface_exit(s->decState);
-    return 0;
-}
-
-static int amr_nb_decode_frame(AVCodecContext *avctx, void *data,
-                               int *data_size, AVPacket *avpkt)
-{
-    const uint8_t *buf = avpkt->data;
-    int buf_size       = avpkt->size;
-    AMRContext *s = avctx->priv_data;
-    const uint8_t *amrData = buf;
-    static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
-    enum Mode dec_mode;
-    int packet_size;
-
-    /* av_log(NULL, AV_LOG_DEBUG, "amr_decode_frame buf=%p buf_size=%d frameCount=%d!!\n",
-              buf, buf_size, s->frameCount); */
-
-    dec_mode = (buf[0] >> 3) & 0x000F;
-    packet_size = block_size[dec_mode] + 1;
-
-    if (packet_size > buf_size) {
-        av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n",
-               buf_size, packet_size);
-        return -1;
-    }
-
-    s->frameCount++;
-    /* av_log(NULL, AV_LOG_DEBUG, "packet_size=%d amrData= 0x%X %X %X %X\n",
-              packet_size, amrData[0], amrData[1], amrData[2], amrData[3]); */
-    /* call decoder */
-    Decoder_Interface_Decode(s->decState, amrData, data, 0);
-    *data_size = 160 * 2;
-
-    return packet_size;
-}
-
-AVCodec libamr_nb_decoder = {
-    "libamr_nb",
-    CODEC_TYPE_AUDIO,
-    CODEC_ID_AMR_NB,
-    sizeof(AMRContext),
-    amr_nb_decode_init,
-    NULL,
-    amr_nb_decode_close,
-    amr_nb_decode_frame,
-    .long_name = NULL_IF_CONFIG_SMALL("libamr-nb Adaptive Multi-Rate (AMR) Narrow-Band"),
-};
-
-static av_cold int amr_nb_encode_init(AVCodecContext *avctx)
-{
-    AMRContext *s = avctx->priv_data;
-
-    s->frameCount = 0;
-
-    if (avctx->sample_rate != 8000) {
-        av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n");
-        return -1;
-    }
-
-    if (avctx->channels != 1) {
-        av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
-        return -1;
-    }
-
-    avctx->frame_size  = 160;
-    avctx->coded_frame = avcodec_alloc_frame();
-
-    s->enstate=Encoder_Interface_init(0);
-    if (!s->enstate) {
-        av_log(avctx, AV_LOG_ERROR, "Encoder_Interface_init error\n");
-        return -1;
-    }
-
-    if ((s->enc_bitrate = getBitrateMode(avctx->bit_rate)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
-        return -1;
-    }
-
-    return 0;
-}
-
-static av_cold int amr_nb_encode_close(AVCodecContext *avctx)
-{
-    AMRContext *s = avctx->priv_data;
-
-    Encoder_Interface_exit(s->enstate);
-    av_freep(&avctx->coded_frame);
-    return 0;
-}
-
-static int amr_nb_encode_frame(AVCodecContext *avctx,
-                               unsigned char *frame/*out*/,
-                               int buf_size, void *data/*in*/)
-{
-    AMRContext *s = avctx->priv_data;
-    int written;
-
-    if ((s->enc_bitrate = getBitrateMode(avctx->bit_rate)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
-        return -1;
-    }
-
-    written = Encoder_Interface_Encode(s->enstate, s->enc_bitrate, data,
-                                       frame, 0);
-    /* av_log(NULL, AV_LOG_DEBUG, "amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n",
-              written, s->enc_bitrate, frame[0] ); */
-
-    return written;
-}
-
-AVCodec libamr_nb_encoder = {
-    "libamr_nb",
-    CODEC_TYPE_AUDIO,
-    CODEC_ID_AMR_NB,
-    sizeof(AMRContext),
-    amr_nb_encode_init,
-    amr_nb_encode_frame,
-    amr_nb_encode_close,
-    NULL,
-    .sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE},
-    .long_name = NULL_IF_CONFIG_SMALL("libamr-nb Adaptive Multi-Rate (AMR) Narrow-Band"),
-};
-
-#endif
-
-/* -----------AMR wideband ------------*/
-#if CONFIG_LIBAMR_WB
-
-#ifdef _TYPEDEF_H
-//To avoid duplicate typedefs from typedef in amr-nb
-#define typedef_h
-#endif
-
-#include <amrwb/dec_if.h>
-#include <amrwb/if_rom.h>
-
-static const char wb_bitrate_unsupported[] =
-    "bitrate not supported: use one of 6.6k, 8.85k, 12.65k, 14.25k, 15.85k, 18.25k, 19.85k, 23.05k, or 23.85k\n";
-
-typedef struct AMRWB_bitrates {
-    int rate;
-    int mode;
-} AMRWB_bitrates;
-
-typedef struct AMRWBContext {
-    int    frameCount;
-    void  *state;
-    int    mode;
-    Word16 allow_dtx;
-} AMRWBContext;
-
-#if CONFIG_LIBAMR_WB_ENCODER
-
-#include <amrwb/enc_if.h>
-
-static int getWBBitrateMode(int bitrate)
-{
-    /* make the correspondance between bitrate and mode */
-    AMRWB_bitrates rates[] = { { 6600, 0},
-                               { 8850, 1},
-                               {12650, 2},
-                               {14250, 3},
-                               {15850, 4},
-                               {18250, 5},
-                               {19850, 6},
-                               {23050, 7},
-                               {23850, 8}, };
-    int i;
-
-    for (i = 0; i < 9; i++)
-        if (rates[i].rate == bitrate)
-            return rates[i].mode;
-    /* no bitrate matching, return an error */
-    return -1;
-}
-
-static av_cold int amr_wb_encode_init(AVCodecContext *avctx)
-{
-    AMRWBContext *s = avctx->priv_data;
-
-    s->frameCount = 0;
-
-    if (avctx->sample_rate != 16000) {
-        av_log(avctx, AV_LOG_ERROR, "Only 16000Hz sample rate supported\n");
-        return -1;
-    }
-
-    if (avctx->channels != 1) {
-        av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
-        return -1;
-    }
-
-    if ((s->mode = getWBBitrateMode(avctx->bit_rate)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
-        return -1;
-    }
-
-    avctx->frame_size  = 320;
-    avctx->coded_frame = avcodec_alloc_frame();
-
-    s->state     = E_IF_init();
-    s->allow_dtx = 0;
-
-    return 0;
-}
-
-static int amr_wb_encode_close(AVCodecContext *avctx)
-{
-    AMRWBContext *s = avctx->priv_data;
-
-    E_IF_exit(s->state);
-    av_freep(&avctx->coded_frame);
-    s->frameCount++;
-    return 0;
-}
-
-static int amr_wb_encode_frame(AVCodecContext *avctx,
-                               unsigned char *frame/*out*/,
-                               int buf_size, void *data/*in*/)
-{
-    AMRWBContext *s = avctx->priv_data;
-    int size;
-
-    if ((s->mode = getWBBitrateMode(avctx->bit_rate)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
-        return -1;
-    }
-    size = E_IF_encode(s->state, s->mode, data, frame, s->allow_dtx);
-    return size;
-}
-
-AVCodec libamr_wb_encoder = {
-    "libamr_wb",
-    CODEC_TYPE_AUDIO,
-    CODEC_ID_AMR_WB,
-    sizeof(AMRWBContext),
-    amr_wb_encode_init,
-    amr_wb_encode_frame,
-    amr_wb_encode_close,
-    NULL,
-    .sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE},
-    .long_name = NULL_IF_CONFIG_SMALL("libamr-wb Adaptive Multi-Rate (AMR) Wide-Band"),
-};
-
-#endif
-
-static av_cold int amr_wb_decode_init(AVCodecContext *avctx)
-{
-    AMRWBContext *s = avctx->priv_data;
-
-    s->frameCount = 0;
-    s->state      = D_IF_init();
-
-    amr_decode_fix_avctx(avctx);
-
-    if (avctx->channels > 1) {
-        av_log(avctx, AV_LOG_ERROR, "amr_wb: multichannel decoding not supported\n");
-        return -1;
-    }
-
-    return 0;
-}
-
-static int amr_wb_decode_frame(AVCodecContext *avctx, void *data,
-                               int *data_size, AVPacket *avpkt)
-{
-    const uint8_t *buf = avpkt->data;
-    int buf_size       = avpkt->size;
-    AMRWBContext *s = avctx->priv_data;
-    const uint8_t *amrData = buf;
-    int mode;
-    int packet_size;
-    static const uint8_t block_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
-
-    if (!buf_size)
-        /* nothing to do */
-        return 0;
-
-    mode = (amrData[0] >> 3) & 0x000F;
-    packet_size = block_size[mode];
-
-    if (packet_size > buf_size) {
-        av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n",
-               buf_size, packet_size + 1);
-        return -1;
-    }
-
-    s->frameCount++;
-    D_IF_decode(s->state, amrData, data, _good_frame);
-    *data_size = 320 * 2;
-    return packet_size;
-}
-
-static int amr_wb_decode_close(AVCodecContext *avctx)
-{
-    AMRWBContext *s = avctx->priv_data;
-
-    D_IF_exit(s->state);
-    return 0;
-}
-
-AVCodec libamr_wb_decoder = {
-    "libamr_wb",
-    CODEC_TYPE_AUDIO,
-    CODEC_ID_AMR_WB,
-    sizeof(AMRWBContext),
-    amr_wb_decode_init,
-    NULL,
-    amr_wb_decode_close,
-    amr_wb_decode_frame,
-    .long_name = NULL_IF_CONFIG_SMALL("libamr-wb Adaptive Multi-Rate (AMR) Wide-Band"),
-};
-
-#endif //CONFIG_LIBAMR_WB