From 4ba968706493931a3eb559a12155dd99acdc9f2e Mon Sep 17 00:00:00 2001 From: nicodvb Date: Mon, 25 Apr 2005 07:07:57 +0000 Subject: added faac audio encoder git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15260 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpcodecs/ae_faac.c | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 libmpcodecs/ae_faac.c (limited to 'libmpcodecs/ae_faac.c') diff --git a/libmpcodecs/ae_faac.c b/libmpcodecs/ae_faac.c new file mode 100644 index 0000000000..c241ca1d7b --- /dev/null +++ b/libmpcodecs/ae_faac.c @@ -0,0 +1,188 @@ +#include +#include +#include +#include +#include +#include +#include "m_option.h" +#include "../mp_msg.h" +#include "aviheader.h" +#include "../libaf/af_format.h" +#include "ms_hdr.h" +#include "muxer.h" +#include +#include "ae.h" + + +static faacEncHandle faac; +static faacEncConfigurationPtr config = NULL; +static int + param_bitrate = 128, + param_quality = 0, + param_object_type = MAIN, + param_mpeg = 2, + param_tns = 0, + param_raw = 0, + param_cutoff = 0, + param_format = 16, + param_debug = 0; + +static int enc_frame_size = 0, divisor; +static unsigned long samples_input, max_bytes_output; +static unsigned char *decoder_specific_buffer = NULL; +static unsigned long decoder_specific_len = 0; + +m_option_t faacopts_conf[] = { + {"br", ¶m_bitrate, CONF_TYPE_INT, 0, 0, 0, NULL}, + {"quality", ¶m_quality, CONF_TYPE_INT, CONF_RANGE, 0, 1000, NULL}, + {"object", ¶m_object_type, CONF_TYPE_INT, CONF_RANGE, MAIN, LTP, NULL}, + {"mpeg", ¶m_mpeg, CONF_TYPE_INT, CONF_RANGE, 2, 4, NULL}, + {"tns", ¶m_tns, CONF_TYPE_FLAG, 0, 0, 1, NULL}, + {"cutoff", ¶m_cutoff, CONF_TYPE_INT, 0, 0, 0, NULL}, + {"format", ¶m_format, CONF_TYPE_INT, 0, 0, 0, NULL}, + {"raw", ¶m_raw, CONF_TYPE_FLAG, 0, 0, 1, NULL}, + {"debug", ¶m_debug, CONF_TYPE_INT, CONF_RANGE, 0, 100000000, NULL}, + {NULL, NULL, 0, 0, 0, 0, NULL} +}; + + +static int bind_faac(audio_encoder_t *encoder, muxer_stream_t *mux_a) +{ + mux_a->wf = calloc(1, sizeof(WAVEFORMATEX) + decoder_specific_len + 256); + mux_a->wf->wFormatTag = 0x706D; + mux_a->wf->nChannels = encoder->params.channels; + mux_a->h.dwSampleSize=0; // VBR + mux_a->h.dwRate=encoder->params.sample_rate; + mux_a->h.dwScale=encoder->params.samples_per_frame; + mux_a->wf->nSamplesPerSec=mux_a->h.dwRate; + mux_a->wf->nAvgBytesPerSec = 125 * encoder->params.bitrate; + + mux_a->wf->nBlockAlign = mux_a->h.dwScale; + mux_a->h.dwSuggestedBufferSize = (encoder->params.audio_preload*mux_a->wf->nAvgBytesPerSec)/1000; + mux_a->h.dwSuggestedBufferSize -= mux_a->h.dwSuggestedBufferSize % mux_a->wf->nBlockAlign; + + mux_a->wf->cbSize = decoder_specific_len; + mux_a->wf->wBitsPerSample = 0; /* does not apply */ + ((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->wID = 1; + ((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->fdwFlags = 2; + ((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->nBlockSize = mux_a->wf->nBlockAlign; + ((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->nFramesPerBlock = 1; + ((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->nCodecDelay = 0; + + // Fix allocation + mux_a->wf = realloc(mux_a->wf, sizeof(WAVEFORMATEX)+mux_a->wf->cbSize); + + if(config->inputFormat == FAAC_INPUT_FLOAT) + encoder->input_format = AF_FORMAT_FLOAT_NE; + else if(config->inputFormat == FAAC_INPUT_32BIT) + encoder->input_format = AF_FORMAT_S32_NE; + else + encoder->input_format = AF_FORMAT_S16_NE; + + encoder->min_buffer_size = mux_a->h.dwSuggestedBufferSize; + encoder->max_buffer_size = mux_a->h.dwSuggestedBufferSize*2; + + if(decoder_specific_buffer && decoder_specific_len) + memcpy(mux_a->wf + 1, decoder_specific_buffer, decoder_specific_len); + + return 1; +} + +static int get_frame_size(audio_encoder_t *encoder) +{ + int sz = enc_frame_size; + enc_frame_size = 0; + return sz; +} + +static int encode_faac(audio_encoder_t *encoder, uint8_t *dest, void *src, int len, int max_size) +{ + // len is divided by the number of bytes per sample + enc_frame_size = faacEncEncode(faac, (int32_t*) src, len / divisor, dest, max_size); + + return enc_frame_size; +} + +int close_faac(audio_encoder_t *encoder) +{ + return 1; +} + +int mpae_init_faac(audio_encoder_t *encoder) +{ + if(encoder->params.channels < 1 || encoder->params.channels > 6 || (param_mpeg != 2 && param_mpeg != 4)) + { + mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, unsupported number of channels: %d, or mpeg version: %d, exit\n", encoder->params.channels, param_mpeg); + return 0; + } + + faac = faacEncOpen(encoder->params.sample_rate, encoder->params.channels, &samples_input, &max_bytes_output); + if(!faac) + { + mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, couldn't init, exit\n"); + return 0; + } + mp_msg(MSGT_MENCODER, MSGL_V, "AE_FAAC, sample_input: %u, max_bytes_output: %u\n", samples_input, max_bytes_output); + config = faacEncGetCurrentConfiguration(faac); + if(!config) + { + mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, couldn't get init configuration, exit\n"); + return 0; + } + + param_bitrate *= 1000; + if(param_quality) + config->quantqual = param_quality; + else + config->bitRate = param_bitrate / encoder->params.channels; + + if(param_format==33) + { + config->inputFormat = FAAC_INPUT_FLOAT; + divisor = 4; + } + else if(param_format==32) + { + config->inputFormat = FAAC_INPUT_32BIT; + divisor = 4; + } + else + { + config->inputFormat = FAAC_INPUT_16BIT; + divisor = 2; + } + config->outputFormat = param_raw ? 0 : 1; // 1 is ADTS + config->aacObjectType = param_object_type; + config->mpegVersion = (param_mpeg == 4 ? MPEG4 : MPEG2); + config->useTns = param_tns; + config->allowMidside = 1; + config->shortctl = SHORTCTL_NORMAL; + param_cutoff = param_cutoff ? param_cutoff : encoder->params.sample_rate / 2; + if(param_cutoff > encoder->params.sample_rate / 2) + param_cutoff = encoder->params.sample_rate / 2; + config->bandWidth = param_cutoff; + if(encoder->params.channels == 6) + config->useLfe = 1; + + if(!faacEncSetConfiguration(faac, config)) + { + mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, counldn't set specified parameters, exiting\n"); + return 0; + } + + if(param_raw) + faacEncGetDecoderSpecificInfo(faac, &decoder_specific_buffer, &decoder_specific_len); + else + decoder_specific_len = 0; + + encoder->params.bitrate = param_bitrate; + encoder->params.samples_per_frame = 1024; + encoder->decode_buffer_size = divisor * samples_input; //samples * 16 bits_per_sample + + encoder->bind = bind_faac; + encoder->get_frame_size = get_frame_size; + encoder->encode = encode_faac; + encoder->close = close_faac; + + return 1; +} -- cgit v1.2.3