mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-03-28 12:32:17 +02:00
Merge recent libamr changes from trunk, as preparation for OpenCORE support.
Originally committed as revision 19131 to svn://svn.ffmpeg.org/ffmpeg/branches/0.5
This commit is contained in:
Diego Biurrun
parent
dd2089dfd8
commit
4fcef88c4d
@ -25,22 +25,13 @@
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* This code implements both an AMR-NarrowBand (AMR-NB) and an AMR-WideBand
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* (AMR-WB) audio encoder/decoder through external reference code from
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* http://www.3gpp.org/. The license of the code from 3gpp is unclear so you
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* have to download the code separately. Two versions exists: One fixed-point
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* and one floating-point. For some reason the float encoder is significantly
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* faster at least on a P4 1.5GHz (0.9s instead of 9.9s on a 30s audio clip
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* at MR102). Both float and fixed point are supported for AMR-NB, but only
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* float for AMR-WB.
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* have to download the code separately.
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*
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* \section AMR-NB
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*
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* \subsection Float
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* The float version (default) can be downloaded from:
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* http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-610.zip
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*
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* \subsection Fixed-point
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* The fixed-point (TS26.073) can be downloaded from:
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* http://www.3gpp.org/ftp/Specs/archive/26_series/26.073/26073-600.zip
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*
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* \subsection Specification
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* The specification for AMR-NB can be found in TS 26.071
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* (http://www.3gpp.org/ftp/Specs/html-info/26071.htm) and some other
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@ -48,14 +39,9 @@
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*
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* \section AMR-WB
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*
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* \subsection Float
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* The reference code can be downloaded from:
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* http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-600.zip
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*
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* \subsection Fixed-point
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* If someone wants to use the fixed point version it can be downloaded from:
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* http://www.3gpp.org/ftp/Specs/archive/26_series/26.173/26173-571.zip.
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*
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* \subsection Specification
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* The specification for AMR-WB can be found in TS 26.171
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* (http://www.3gpp.org/ftp/Specs/html-info/26171.htm) and some other
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@ -65,31 +51,30 @@
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#include "avcodec.h"
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#if CONFIG_LIBAMR_NB_FIXED
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static void amr_decode_fix_avctx(AVCodecContext *avctx)
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{
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const int is_amr_wb = 1 + (avctx->codec_id == CODEC_ID_AMR_WB);
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#define MMS_IO
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if (!avctx->sample_rate)
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avctx->sample_rate = 8000 * is_amr_wb;
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#include "amr/sp_dec.h"
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#include "amr/d_homing.h"
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#include "amr/typedef.h"
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#include "amr/sp_enc.h"
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#include "amr/sid_sync.h"
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#include "amr/e_homing.h"
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if (!avctx->channels)
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avctx->channels = 1;
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avctx->frame_size = 160 * is_amr_wb;
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avctx->sample_fmt = SAMPLE_FMT_S16;
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}
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#if CONFIG_LIBAMR_NB
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#else
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#include <amrnb/interf_dec.h>
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#include <amrnb/interf_enc.h>
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#endif
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static const char nb_bitrate_unsupported[] =
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"bitrate not supported: use one of 4.75k, 5.15k, 5.9k, 6.7k, 7.4k, 7.95k, 10.2k or 12.2k\n";
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static const char wb_bitrate_unsupported[] =
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"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";
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/* Common code for fixed and float version*/
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typedef struct AMR_bitrates
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{
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int rate;
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typedef struct AMR_bitrates {
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int rate;
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enum Mode mode;
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} AMR_bitrates;
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@ -97,287 +82,44 @@ typedef struct AMR_bitrates
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static int getBitrateMode(int bitrate)
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{
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/* make the correspondance between bitrate and mode */
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AMR_bitrates rates[]={ {4750,MR475},
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{5150,MR515},
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{5900,MR59},
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{6700,MR67},
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{7400,MR74},
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{7950,MR795},
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{10200,MR102},
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{12200,MR122},
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};
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AMR_bitrates rates[] = { { 4750, MR475},
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{ 5150, MR515},
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{ 5900, MR59},
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{ 6700, MR67},
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{ 7400, MR74},
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{ 7950, MR795},
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{10200, MR102},
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{12200, MR122}, };
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int i;
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for(i=0;i<8;i++)
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{
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if(rates[i].rate==bitrate)
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{
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for (i = 0; i < 8; i++)
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if (rates[i].rate == bitrate)
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return rates[i].mode;
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}
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}
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/* no bitrate matching, return an error */
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return -1;
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}
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static void amr_decode_fix_avctx(AVCodecContext * avctx)
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{
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const int is_amr_wb = 1 + (avctx->codec_id == CODEC_ID_AMR_WB);
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if(avctx->sample_rate == 0)
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{
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avctx->sample_rate = 8000 * is_amr_wb;
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}
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if(avctx->channels == 0)
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{
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avctx->channels = 1;
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}
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avctx->frame_size = 160 * is_amr_wb;
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avctx->sample_fmt = SAMPLE_FMT_S16;
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}
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#if CONFIG_LIBAMR_NB_FIXED
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/* fixed point version*/
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/* frame size in serial bitstream file (frame type + serial stream + flags) */
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#define SERIAL_FRAMESIZE (1+MAX_SERIAL_SIZE+5)
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typedef struct AMRContext {
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int frameCount;
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Speech_Decode_FrameState *speech_decoder_state;
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enum RXFrameType rx_type;
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enum Mode mode;
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Word16 reset_flag;
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Word16 reset_flag_old;
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int enc_bitrate;
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Speech_Encode_FrameState *enstate;
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sid_syncState *sidstate;
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enum TXFrameType tx_frametype;
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int frameCount;
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void *decState;
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int *enstate;
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int enc_bitrate;
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} AMRContext;
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static av_cold int amr_nb_decode_init(AVCodecContext * avctx)
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static av_cold int amr_nb_decode_init(AVCodecContext *avctx)
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{
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AMRContext *s = avctx->priv_data;
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s->frameCount=0;
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s->speech_decoder_state=NULL;
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s->rx_type = (enum RXFrameType)0;
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s->mode= (enum Mode)0;
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s->reset_flag=0;
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s->reset_flag_old=1;
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if(Speech_Decode_Frame_init(&s->speech_decoder_state, "Decoder"))
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{
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av_log(avctx, AV_LOG_ERROR, "Speech_Decode_Frame_init error\n");
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return -1;
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}
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amr_decode_fix_avctx(avctx);
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if(avctx->channels > 1)
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{
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av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
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return -1;
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}
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return 0;
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}
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static av_cold int amr_nb_encode_init(AVCodecContext * avctx)
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{
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AMRContext *s = avctx->priv_data;
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s->frameCount=0;
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s->speech_decoder_state=NULL;
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s->rx_type = (enum RXFrameType)0;
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s->mode= (enum Mode)0;
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s->reset_flag=0;
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s->reset_flag_old=1;
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if(avctx->sample_rate!=8000)
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{
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av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n");
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return -1;
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}
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if(avctx->channels!=1)
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{
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av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
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return -1;
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}
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avctx->frame_size=160;
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avctx->coded_frame= avcodec_alloc_frame();
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if(Speech_Encode_Frame_init(&s->enstate, 0, "encoder") || sid_sync_init (&s->sidstate))
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{
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av_log(avctx, AV_LOG_ERROR, "Speech_Encode_Frame_init error\n");
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return -1;
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}
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if((s->enc_bitrate=getBitrateMode(avctx->bit_rate))<0)
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{
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av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
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return -1;
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}
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return 0;
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}
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static av_cold int amr_nb_encode_close(AVCodecContext * avctx)
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{
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AMRContext *s = avctx->priv_data;
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Speech_Encode_Frame_exit(&s->enstate);
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sid_sync_exit (&s->sidstate);
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av_freep(&avctx->coded_frame);
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return 0;
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}
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static av_cold int amr_nb_decode_close(AVCodecContext * avctx)
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{
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AMRContext *s = avctx->priv_data;
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Speech_Decode_Frame_exit(&s->speech_decoder_state);
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return 0;
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}
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static int amr_nb_decode_frame(AVCodecContext * avctx,
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void *data, int *data_size,
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const uint8_t * buf, int buf_size)
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{
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AMRContext *s = avctx->priv_data;
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const uint8_t*amrData=buf;
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int offset=0;
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UWord8 toc, q, ft;
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Word16 serial[SERIAL_FRAMESIZE]; /* coded bits */
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Word16 *synth;
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UWord8 *packed_bits;
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static Word16 packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
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int i;
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//printf("amr_decode_frame data_size=%i buf=0x%X buf_size=%d frameCount=%d!!\n",*data_size,buf,buf_size,s->frameCount);
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synth=data;
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toc=amrData[offset];
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/* read rest of the frame based on ToC byte */
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q = (toc >> 2) & 0x01;
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ft = (toc >> 3) & 0x0F;
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//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]);
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offset++;
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packed_bits=amrData+offset;
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offset+=packed_size[ft];
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//Unsort and unpack bits
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s->rx_type = UnpackBits(q, ft, packed_bits, &s->mode, &serial[1]);
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//We have a new frame
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s->frameCount++;
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if (s->rx_type == RX_NO_DATA)
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{
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s->mode = s->speech_decoder_state->prev_mode;
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}
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else {
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s->speech_decoder_state->prev_mode = s->mode;
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}
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/* if homed: check if this frame is another homing frame */
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if (s->reset_flag_old == 1)
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{
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/* only check until end of first subframe */
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s->reset_flag = decoder_homing_frame_test_first(&serial[1], s->mode);
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}
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/* produce encoder homing frame if homed & input=decoder homing frame */
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if ((s->reset_flag != 0) && (s->reset_flag_old != 0))
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{
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for (i = 0; i < L_FRAME; i++)
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{
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synth[i] = EHF_MASK;
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}
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}
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else
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{
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/* decode frame */
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Speech_Decode_Frame(s->speech_decoder_state, s->mode, &serial[1], s->rx_type, synth);
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}
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//Each AMR-frame results in 160 16-bit samples
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*data_size=160*2;
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/* if not homed: check whether current frame is a homing frame */
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if (s->reset_flag_old == 0)
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{
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/* check whole frame */
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s->reset_flag = decoder_homing_frame_test(&serial[1], s->mode);
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}
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/* reset decoder if current frame is a homing frame */
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if (s->reset_flag != 0)
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{
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Speech_Decode_Frame_reset(s->speech_decoder_state);
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}
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s->reset_flag_old = s->reset_flag;
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return offset;
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}
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static int amr_nb_encode_frame(AVCodecContext *avctx,
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unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
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{
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short serial_data[250] = {0};
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AMRContext *s = avctx->priv_data;
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int written;
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s->reset_flag = encoder_homing_frame_test(data);
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Speech_Encode_Frame(s->enstate, s->enc_bitrate, data, &serial_data[1], &s->mode);
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/* add frame type and mode */
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sid_sync (s->sidstate, s->mode, &s->tx_frametype);
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written = PackBits(s->mode, s->enc_bitrate, s->tx_frametype, &serial_data[1], frame);
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if (s->reset_flag != 0)
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{
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Speech_Encode_Frame_reset(s->enstate);
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sid_sync_reset(s->sidstate);
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}
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return written;
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}
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#elif CONFIG_LIBAMR_NB /* Float point version*/
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typedef struct AMRContext {
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int frameCount;
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void * decState;
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int *enstate;
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int enc_bitrate;
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} AMRContext;
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static av_cold int amr_nb_decode_init(AVCodecContext * avctx)
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{
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AMRContext *s = avctx->priv_data;
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s->frameCount=0;
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s->decState=Decoder_Interface_init();
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if(!s->decState)
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{
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s->frameCount = 0;
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s->decState = Decoder_Interface_init();
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if (!s->decState) {
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av_log(avctx, AV_LOG_ERROR, "Decoder_Interface_init error\r\n");
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return -1;
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}
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amr_decode_fix_avctx(avctx);
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if(avctx->channels > 1)
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{
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if (avctx->channels > 1) {
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av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
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return -1;
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}
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@ -385,44 +127,7 @@ static av_cold int amr_nb_decode_init(AVCodecContext * avctx)
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return 0;
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}
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static av_cold int amr_nb_encode_init(AVCodecContext * avctx)
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{
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AMRContext *s = avctx->priv_data;
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s->frameCount=0;
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if(avctx->sample_rate!=8000)
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{
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av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n");
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return -1;
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}
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if(avctx->channels!=1)
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{
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av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
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return -1;
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}
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avctx->frame_size=160;
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avctx->coded_frame= avcodec_alloc_frame();
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s->enstate=Encoder_Interface_init(0);
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if(!s->enstate)
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{
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av_log(avctx, AV_LOG_ERROR, "Encoder_Interface_init error\n");
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return -1;
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}
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if((s->enc_bitrate=getBitrateMode(avctx->bit_rate))<0)
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{
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av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
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return -1;
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}
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return 0;
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}
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static av_cold int amr_nb_decode_close(AVCodecContext * avctx)
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static av_cold int amr_nb_decode_close(AVCodecContext *avctx)
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{
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AMRContext *s = avctx->priv_data;
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@ -430,72 +135,39 @@ static av_cold int amr_nb_decode_close(AVCodecContext * avctx)
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return 0;
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}
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static av_cold int amr_nb_encode_close(AVCodecContext * avctx)
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static int amr_nb_decode_frame(AVCodecContext *avctx, void *data,
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int *data_size,
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const uint8_t *buf, int buf_size)
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{
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AMRContext *s = avctx->priv_data;
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Encoder_Interface_exit(s->enstate);
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av_freep(&avctx->coded_frame);
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return 0;
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}
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static int amr_nb_decode_frame(AVCodecContext * avctx,
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void *data, int *data_size,
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const uint8_t * buf, int buf_size)
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{
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AMRContext *s = avctx->priv_data;
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const uint8_t*amrData=buf;
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static const uint8_t block_size[16]={ 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
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const uint8_t *amrData = buf;
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static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
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||||
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); */
|
||||
/* 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;
|
||||
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);
|
||||
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]); */
|
||||
/* 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;
|
||||
*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 CONFIG_LIBAMR_NB || CONFIG_LIBAMR_NB_FIXED
|
||||
|
||||
AVCodec libamr_nb_decoder =
|
||||
{
|
||||
AVCodec libamr_nb_decoder = {
|
||||
"libamr_nb",
|
||||
CODEC_TYPE_AUDIO,
|
||||
CODEC_ID_AMR_NB,
|
||||
@ -507,8 +179,69 @@ AVCodec libamr_nb_decoder =
|
||||
.long_name = NULL_IF_CONFIG_SMALL("libamr-nb Adaptive Multi-Rate (AMR) Narrow-Band"),
|
||||
};
|
||||
|
||||
AVCodec libamr_nb_encoder =
|
||||
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,
|
||||
@ -531,85 +264,80 @@ AVCodec libamr_nb_encoder =
|
||||
#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
|
||||
{
|
||||
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},
|
||||
};
|
||||
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)
|
||||
{
|
||||
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)
|
||||
static av_cold int amr_wb_encode_init(AVCodecContext *avctx)
|
||||
{
|
||||
AMRWBContext *s = avctx->priv_data;
|
||||
|
||||
s->frameCount=0;
|
||||
s->frameCount = 0;
|
||||
|
||||
if(avctx->sample_rate!=16000)
|
||||
{
|
||||
if (avctx->sample_rate != 16000) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Only 16000Hz sample rate supported\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if(avctx->channels!=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)
|
||||
{
|
||||
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();
|
||||
avctx->frame_size = 320;
|
||||
avctx->coded_frame = avcodec_alloc_frame();
|
||||
|
||||
s->state = E_IF_init();
|
||||
s->allow_dtx=0;
|
||||
s->state = E_IF_init();
|
||||
s->allow_dtx = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int amr_wb_encode_close(AVCodecContext * avctx)
|
||||
static int amr_wb_encode_close(AVCodecContext *avctx)
|
||||
{
|
||||
AMRWBContext *s = avctx->priv_data;
|
||||
|
||||
@ -620,13 +348,13 @@ static int amr_wb_encode_close(AVCodecContext * avctx)
|
||||
}
|
||||
|
||||
static int amr_wb_encode_frame(AVCodecContext *avctx,
|
||||
unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
|
||||
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)
|
||||
{
|
||||
if ((s->mode = getWBBitrateMode(avctx->bit_rate)) < 0) {
|
||||
av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
|
||||
return -1;
|
||||
}
|
||||
@ -634,76 +362,7 @@ static int amr_wb_encode_frame(AVCodecContext *avctx,
|
||||
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,
|
||||
const uint8_t * buf, int buf_size)
|
||||
{
|
||||
AMRWBContext *s = avctx->priv_data;
|
||||
const uint8_t*amrData=buf;
|
||||
int mode;
|
||||
int packet_size;
|
||||
static const uint8_t block_size[16] = {18, 23, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
|
||||
|
||||
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,
|
||||
.long_name = NULL_IF_CONFIG_SMALL("libamr-wb Adaptive Multi-Rate (AMR) Wide-Band"),
|
||||
};
|
||||
|
||||
AVCodec libamr_wb_encoder =
|
||||
{
|
||||
AVCodec libamr_wb_encoder = {
|
||||
"libamr_wb",
|
||||
CODEC_TYPE_AUDIO,
|
||||
CODEC_ID_AMR_WB,
|
||||
@ -716,4 +375,72 @@ AVCodec libamr_wb_encoder =
|
||||
.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,
|
||||
const uint8_t *buf, int buf_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
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user