X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Famr.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Famr.c;h=0000000000000000000000000000000000000000;hb=3a6643238c67c043fc3592837a05d6d2861967f1;hp=50fe003f81318e22ea767d81dda719fd3f9a55fa;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/amr.c b/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/amr.c deleted file mode 100644 index 50fe003..0000000 --- a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/amr.c +++ /dev/null @@ -1,460 +0,0 @@ -/* - * AMR Audio decoder stub - * Copyright (c) 2003 the ffmpeg project - * - * 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 - */ - /* - This code implements amr-nb audio encoder/decoder through external reference - code from www.3gpp.org. The licence of the code from 3gpp is unclear so you - have to download the code separately. Two versions exists: One fixed-point - and one with floats. For some reason the float-encoder is significant faster - atleast on a P4 1.5GHz (0.9s instead of 9.9s on a 30s audio clip at MR102). - - The fixed-point (TS26.073) can be downloaded from: - http://www.3gpp.org/ftp/Specs/latest/Rel-5/26_series/26073-510.zip - Extract the soure into ffmpeg/libavcodec/amr - To use the float version run "./configure" with "--enable-amr-nb-fixed" - - The float version (default) can be downloaded from: - http://www.3gpp.org/ftp/Specs/latest/Rel-5/26_series/26104-510.zip - Extract the soure into ffmpeg/libavcodec/amr_float - - 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 - - In the future support for AMR-WB might also be included here. - Reference code exist in TS26.173 and TS 26.204. - - */ -#define DEBUG -//#define AMR_NB_FIXED -#include "../config.h" -#include "avcodec.h" - -#ifdef AMR_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 "amr_float/interf_dec.h" -#include "amr_float/interf_enc.h" -#endif - -/* Common code for fixed and float version*/ -typedef struct AMR_bitrates -{ - int startrate; - int stoprate; - enum Mode mode; - -} AMR_bitrates; - -/* Match desired bitrate with closest one*/ -static enum Mode getBitrateMode(int bitrate) -{ - /* Adjusted so that all bitrates can be used from commandline where - only a multiple of 1000 can be specified*/ - AMR_bitrates rates[]={ {0,4999,MR475}, //4 - {5000,5899,MR515},//5 - {5900,6699,MR59},//6 - {6700,7000,MR67},//7 - {7001,7949,MR74},//8 - {7950,9999,MR795},//9 - {10000,11999,MR102},//10 - {12000,64000,MR122},//12 - - }; - int i; - for(i=0;i=bitrate) - { - return(rates[i].mode); - } - } - /*Return highest possible*/ - return(MR122); -} - -#ifdef AMR_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; - - enum Mode 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")) - { - printf("Speech_Decode_Frame_init error\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) - { -#ifdef DEBUG - printf("Only 8000Hz sample rate supported\n"); -#endif - return -1; - } - - if(avctx->channels!=1) - { -#ifdef DEBUG - printf("Only mono supported\n"); -#endif - 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)) - { -#ifdef DEBUG - printf("Speech_Encode_Frame_init error\n"); -#endif - return -1; - } - - s->enc_bitrate=getBitrateMode(avctx->bit_rate); - - 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; - *data_size=0; - - 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; - -// while(offset> 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; - synth+=160; - - /* 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; -} - - -#else /* Float point version*/ - -typedef struct AMRContext { - int frameCount; - void * decState; - int *enstate; - enum Mode 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) - { - printf("Decoder_Interface_init error\r\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) - { -#ifdef DEBUG - printf("Only 8000Hz sample rate supported\n"); -#endif - return -1; - } - - if(avctx->channels!=1) - { -#ifdef DEBUG - printf("Only mono supported\n"); -#endif - return -1; - } - - avctx->frame_size=160; - avctx->coded_frame= avcodec_alloc_frame(); - - s->enstate=Encoder_Interface_init(0); - if(!s->enstate) - { - printf("Encoder_Interface_init error\n"); - return -1; - } - - s->enc_bitrate=getBitrateMode(avctx->bit_rate); - - 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 = (AMRContext*)avctx->priv_data; - - uint8_t*amrData=buf; - int offset=0; - 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; - *data_size=0; - - //printf("amr_decode_frame data_size=%i buf=0x%X buf_size=%d frameCount=%d!!\n",*data_size,buf,buf_size,s->frameCount); - - while(offset> 3) & 0x000F; - packet_size = block_size[dec_mode]; - - s->frameCount++; - //printf("offset=%d, packet_size=%d amrData= 0x%X %X %X %X\n",offset,packet_size,amrData[offset],amrData[offset+1],amrData[offset+2],amrData[offset+3]); - /* call decoder */ - Decoder_Interface_Decode(s->decState, &amrData[offset], data+*data_size, 0); - *data_size+=160*2; - - offset+=packet_size+1; - } - return buf_size; -} - -static int amr_nb_encode_frame(AVCodecContext *avctx, - unsigned char *frame/*out*/, int buf_size, void *data/*in*/) -{ - AMRContext *s = (AMRContext*)avctx->priv_data; - int written; - - written = Encoder_Interface_Encode(s->enstate, - s->enc_bitrate, - data, - frame, - 0); - - return written; -} - -#endif - -AVCodec amr_nb_decoder = -{ - "amr_nb", - CODEC_TYPE_AUDIO, - CODEC_ID_AMR_NB, - sizeof(AMRContext), - amr_nb_decode_init, - NULL, - amr_nb_decode_close, - amr_nb_decode_frame, -}; - -AVCodec amr_nb_encoder = -{ - "amr_nb", - CODEC_TYPE_AUDIO, - CODEC_ID_AMR_NB, - sizeof(AMRContext), - amr_nb_encode_init, - amr_nb_encode_frame, - amr_nb_encode_close, - NULL, -};