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authorDiego Biurrun <diego@biurrun.de>2007-06-06 00:14:18 +0000
committerDiego Biurrun <diego@biurrun.de>2007-06-06 00:14:18 +0000
commit6f1af73557824b1872732b7823e881a14f870077 (patch)
tree3d22e9a9585b538bd4295898f1e2f5a89d36619b /libavcodec/amr.c
parent6f74b71ef0f5457b8cc736cb8f828ec1b75a217c (diff)
downloadffmpeg-6f1af73557824b1872732b7823e881a14f870077.tar.gz
Give all wrappers for external libraries names starting with lib.
Originally committed as revision 9226 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/amr.c')
-rw-r--r--libavcodec/amr.c711
1 files changed, 0 insertions, 711 deletions
diff --git a/libavcodec/amr.c b/libavcodec/amr.c
deleted file mode 100644
index afe597de23..0000000000
--- a/libavcodec/amr.c
+++ /dev/null
@@ -1,711 +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. Two versions exists: One fixed-point
- * and one floating-point. For some reason the float encoder is significantly
- * faster at least on a P4 1.5GHz (0.9s instead of 9.9s on a 30s audio clip
- * at MR102). Both float and fixed point are supported for AMR-NB, but only
- * float for AMR-WB.
- *
- * \section AMR-NB
- *
- * \subsection Float
- * The float version (default) can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-610.zip
- *
- * \subsection Fixed-point
- * The fixed-point (TS26.073) can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.073/26073-600.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
- *
- * \subsection Float
- * The reference code can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-600.zip
- *
- * \subsection Fixed-point
- * If someone wants to use the fixed point version it can be downloaded from:
- * http://www.3gpp.org/ftp/Specs/archive/26_series/26.173/26173-571.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"
-
-#ifdef CONFIG_LIBAMR_NB_FIXED
-
-#define MMS_IO
-
-#include "amr/sp_dec.h"
-#include "amr/d_homing.h"
-#include "amr/typedef.h"
-#include "amr/sp_enc.h"
-#include "amr/sid_sync.h"
-#include "amr/e_homing.h"
-
-#else
-#include <amrnb/interf_dec.h>
-#include <amrnb/interf_enc.h>
-#endif
-
-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";
-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";
-
-/* Common code for fixed and float version*/
-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;
-}
-
-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 == 0)
- {
- avctx->sample_rate = 8000 * is_amr_wb;
- }
-
- if(avctx->channels == 0)
- {
- avctx->channels = 1;
- }
-
- avctx->frame_size = 160 * is_amr_wb;
-}
-
-#ifdef CONFIG_LIBAMR_NB_FIXED
-/* fixed point version*/
-/* frame size in serial bitstream file (frame type + serial stream + flags) */
-#define SERIAL_FRAMESIZE (1+MAX_SERIAL_SIZE+5)
-
-typedef struct AMRContext {
- int frameCount;
- Speech_Decode_FrameState *speech_decoder_state;
- enum RXFrameType rx_type;
- enum Mode mode;
- Word16 reset_flag;
- Word16 reset_flag_old;
-
- int enc_bitrate;
- Speech_Encode_FrameState *enstate;
- sid_syncState *sidstate;
- enum TXFrameType tx_frametype;
-} AMRContext;
-
-static int amr_nb_decode_init(AVCodecContext * avctx)
-{
- AMRContext *s = avctx->priv_data;
-
- s->frameCount=0;
- s->speech_decoder_state=NULL;
- s->rx_type = (enum RXFrameType)0;
- s->mode= (enum Mode)0;
- s->reset_flag=0;
- s->reset_flag_old=1;
-
- if(Speech_Decode_Frame_init(&s->speech_decoder_state, "Decoder"))
- {
- av_log(avctx, AV_LOG_ERROR, "Speech_Decode_Frame_init error\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 int amr_nb_encode_init(AVCodecContext * avctx)
-{
- AMRContext *s = avctx->priv_data;
-
- s->frameCount=0;
- s->speech_decoder_state=NULL;
- s->rx_type = (enum RXFrameType)0;
- s->mode= (enum Mode)0;
- s->reset_flag=0;
- s->reset_flag_old=1;
-
- 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();
-
- if(Speech_Encode_Frame_init(&s->enstate, 0, "encoder") || sid_sync_init (&s->sidstate))
- {
- av_log(avctx, AV_LOG_ERROR, "Speech_Encode_Frame_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 int amr_nb_encode_close(AVCodecContext * avctx)
-{
- AMRContext *s = avctx->priv_data;
-
- Speech_Encode_Frame_exit(&s->enstate);
- sid_sync_exit (&s->sidstate);
- av_freep(&avctx->coded_frame);
- return 0;
-}
-
-static int amr_nb_decode_close(AVCodecContext * avctx)
-{
- AMRContext *s = avctx->priv_data;
-
- Speech_Decode_Frame_exit(&s->speech_decoder_state);
- return 0;
-}
-
-static int amr_nb_decode_frame(AVCodecContext * avctx,
- void *data, int *data_size,
- uint8_t * buf, int buf_size)
-{
- AMRContext *s = avctx->priv_data;
- uint8_t*amrData=buf;
- int offset=0;
- UWord8 toc, q, ft;
- Word16 serial[SERIAL_FRAMESIZE]; /* coded bits */
- Word16 *synth;
- UWord8 *packed_bits;
- static Word16 packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
- int i;
-
- //printf("amr_decode_frame data_size=%i buf=0x%X buf_size=%d frameCount=%d!!\n",*data_size,buf,buf_size,s->frameCount);
-
- synth=data;
-
- toc=amrData[offset];
- /* read rest of the frame based on ToC byte */
- q = (toc >> 2) & 0x01;
- ft = (toc >> 3) & 0x0F;
-
- //printf("offset=%d, packet_size=%d amrData= 0x%X %X %X %X\n",offset,packed_size[ft],amrData[offset],amrData[offset+1],amrData[offset+2],amrData[offset+3]);
-
- offset++;
-
- packed_bits=amrData+offset;
-
- offset+=packed_size[ft];
-
- //Unsort and unpack bits
- s->rx_type = UnpackBits(q, ft, packed_bits, &s->mode, &serial[1]);
-
- //We have a new frame
- s->frameCount++;
-
- if (s->rx_type == RX_NO_DATA)
- {
- s->mode = s->speech_decoder_state->prev_mode;
- }
- else {
- s->speech_decoder_state->prev_mode = s->mode;
- }
-
- /* if homed: check if this frame is another homing frame */
- if (s->reset_flag_old == 1)
- {
- /* only check until end of first subframe */
- s->reset_flag = decoder_homing_frame_test_first(&serial[1], s->mode);
- }
- /* produce encoder homing frame if homed & input=decoder homing frame */
- if ((s->reset_flag != 0) && (s->reset_flag_old != 0))
- {
- for (i = 0; i < L_FRAME; i++)
- {
- synth[i] = EHF_MASK;
- }
- }
- else
- {
- /* decode frame */
- Speech_Decode_Frame(s->speech_decoder_state, s->mode, &serial[1], s->rx_type, synth);
- }
-
- //Each AMR-frame results in 160 16-bit samples
- *data_size=160*2;
-
- /* if not homed: check whether current frame is a homing frame */
- if (s->reset_flag_old == 0)
- {
- /* check whole frame */
- s->reset_flag = decoder_homing_frame_test(&serial[1], s->mode);
- }
- /* reset decoder if current frame is a homing frame */
- if (s->reset_flag != 0)
- {
- Speech_Decode_Frame_reset(s->speech_decoder_state);
- }
- s->reset_flag_old = s->reset_flag;
-
- return offset;
-}
-
-
-static int amr_nb_encode_frame(AVCodecContext *avctx,
- unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
-{
- short serial_data[250] = {0};
- AMRContext *s = avctx->priv_data;
- int written;
-
- s->reset_flag = encoder_homing_frame_test(data);
-
- Speech_Encode_Frame(s->enstate, s->enc_bitrate, data, &serial_data[1], &s->mode);
-
- /* add frame type and mode */
- sid_sync (s->sidstate, s->mode, &s->tx_frametype);
-
- written = PackBits(s->mode, s->enc_bitrate, s->tx_frametype, &serial_data[1], frame);
-
- if (s->reset_flag != 0)
- {
- Speech_Encode_Frame_reset(s->enstate);
- sid_sync_reset(s->sidstate);
- }
- return written;
-}
-
-
-#elif defined(CONFIG_LIBAMR_NB) /* Float point version*/
-
-typedef struct AMRContext {
- int frameCount;
- void * decState;
- int *enstate;
- int enc_bitrate;
-} AMRContext;
-
-static 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 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 int amr_nb_decode_close(AVCodecContext * avctx)
-{
- AMRContext *s = avctx->priv_data;
-
- Decoder_Interface_exit(s->decState);
- return 0;
-}
-
-static 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_decode_frame(AVCodecContext * avctx,
- void *data, int *data_size,
- uint8_t * buf, int buf_size)
-{
- AMRContext *s = avctx->priv_data;
- uint8_t*amrData=buf;
- static short 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;
-}
-
-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;
-}
-
-#endif
-
-#if defined(CONFIG_LIBAMR_NB) || defined(CONFIG_LIBAMR_NB_FIXED)
-
-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,
-};
-
-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,
-};
-
-#endif
-
-/* -----------AMR wideband ------------*/
-#ifdef CONFIG_LIBAMR_WB
-
-#ifdef _TYPEDEF_H
-//To avoid duplicate typedefs from typdef in amr-nb
-#define typedef_h
-#endif
-
-#include <amrwb/enc_if.h>
-#include <amrwb/dec_if.h>
-#include <amrwb/if_rom.h>
-
-/* Common code for fixed and float version*/
-typedef struct AMRWB_bitrates
-{
- int rate;
- int mode;
-} AMRWB_bitrates;
-
-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;
-}
-
-
-typedef struct AMRWBContext {
- int frameCount;
- void *state;
- int mode;
- Word16 allow_dtx;
-} AMRWBContext;
-
-static 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;
-}
-
-static 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,
- uint8_t * buf, int buf_size)
-{
- AMRWBContext *s = avctx->priv_data;
- uint8_t*amrData=buf;
- int mode;
- int packet_size;
-
- if(buf_size==0) {
- /* 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,
-};
-
-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,
-};
-
-#endif //CONFIG_LIBAMR_WB