added faac audio encoder

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15260 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 188 insertions, 0 deletions

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 <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include "m_option.h"
+#include "../mp_msg.h"
+#include "aviheader.h"
+#include "../libaf/af_format.h"
+#include "ms_hdr.h"
+#include "muxer.h"
+#include <faac.h>
+#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", &param_bitrate, CONF_TYPE_INT, 0, 0, 0, NULL},
+	{"quality", &param_quality, CONF_TYPE_INT, CONF_RANGE, 0, 1000, NULL},
+	{"object", &param_object_type, CONF_TYPE_INT, CONF_RANGE, MAIN, LTP, NULL},
+	{"mpeg", &param_mpeg, CONF_TYPE_INT, CONF_RANGE, 2, 4, NULL},
+	{"tns", &param_tns, CONF_TYPE_FLAG, 0, 0, 1, NULL},
+	{"cutoff", &param_cutoff, CONF_TYPE_INT, 0, 0, 0, NULL},
+	{"format", &param_format, CONF_TYPE_INT, 0, 0, 0, NULL},
+	{"raw", &param_raw, CONF_TYPE_FLAG, 0, 0, 1, NULL},
+	{"debug", &param_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;
+}