added twolame mp2 audio encoder

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15360 b3059339-0415-0410-9bf9-f77b7e298cf2

5 files changed, 245 insertions, 0 deletions

diff --git a/libmpcodecs/Makefile b/libmpcodecs/Makefile
index 061c15916d..c3ad12c6c9 100644
--- a/libmpcodecs/Makefile
+++ b/libmpcodecs/Makefile
@@ -44,6 +44,10 @@ ENCODER_SRCS += ae_toolame.c
 EXTRA_INC += $(TOOLAME_EXTRAFLAGS)
 endif
 
+ifeq ($(TWOLAME),yes)
+ENCODER_SRCS += ae_twolame.c
+endif
+
 ifeq ($(CONFIG_MP3LAME),yes)
 ENCODER_SRCS += ae_lame.c
 endif
diff --git a/libmpcodecs/ae.c b/libmpcodecs/ae.c
index 2b1da10d04..af4a2bb751 100644
--- a/libmpcodecs/ae.c
+++ b/libmpcodecs/ae.c
@@ -27,6 +27,10 @@
 #include "ae_faac.h"
 #endif
 
+#ifdef HAVE_TWOLAME
+#include "ae_twolame.h"
+#endif
+
 audio_encoder_t *new_audio_encoder(muxer_stream_t *stream, audio_encoding_params_t *params)
 {
 	int ris;
@@ -63,6 +67,11 @@ audio_encoder_t *new_audio_encoder(muxer_stream_t *stream, audio_encoding_params
 			ris = mpae_init_faac(encoder);
 			break;
 #endif
+#ifdef HAVE_TWOLAME
+		case ACODEC_TWOLAME:
+			ris = mpae_init_twolame(encoder);
+			break;
+#endif
 	}
 	
 	if(! ris)
diff --git a/libmpcodecs/ae.h b/libmpcodecs/ae.h
index d1da14073d..316af9eb15 100644
--- a/libmpcodecs/ae.h
+++ b/libmpcodecs/ae.h
@@ -9,6 +9,7 @@
 #define ACODEC_LAVC 4
 #define ACODEC_TOOLAME 5
 #define ACODEC_FAAC 6
+#define ACODEC_TWOLAME 7
 
 #define AE_NEEDS_COMPRESSED_INPUT 1
 
diff --git a/libmpcodecs/ae_twolame.c b/libmpcodecs/ae_twolame.c
new file mode 100644
index 0000000000..b6f06c774a
--- /dev/null
+++ b/libmpcodecs/ae_twolame.c
@@ -0,0 +1,217 @@
+#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 "ae_twolame.h"
+#include "../libmpdemux/mp3_hdr.h"
+
+
+static int 
+    param_bitrate = 192,
+    param_psy = 3,
+    param_maxvbr = 0,
+    param_errprot = 0,
+    param_debug = 0;
+    
+static float param_vbr = 0;
+static char *param_mode = "stereo";
+    
+m_option_t twolameopts_conf[] = {
+	{"br", &param_bitrate, CONF_TYPE_INT, 0, 0, 0, NULL},
+	{"mode", &param_mode, CONF_TYPE_STRING, 0, 0, 0, NULL},
+	{"psy", &param_psy, CONF_TYPE_INT, CONF_RANGE, 0, 3, NULL},
+	{"vbr", &param_vbr, CONF_TYPE_FLOAT, CONF_RANGE, -50, 50, NULL},
+	{"maxvbr", &param_maxvbr, CONF_TYPE_INT, 0, 0, 0, NULL},
+	{"errprot", &param_errprot, CONF_TYPE_INT, CONF_RANGE, 0, 1, NULL},
+	{"debug", &param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 100000000, NULL},
+	{NULL, NULL, 0, 0, 0, 0, NULL}
+};
+
+
+static int bind_twolame(audio_encoder_t *encoder, muxer_stream_t *mux_a)
+{
+	mpae_twolame_ctx *ctx = (mpae_twolame_ctx *) encoder->priv;
+	
+	mux_a->wf = malloc(sizeof(WAVEFORMATEX)+256);
+	mux_a->wf->wFormatTag = 0x50;
+	mux_a->wf->nChannels = encoder->params.channels;
+	mux_a->wf->nSamplesPerSec = encoder->params.sample_rate;
+	mux_a->wf->nAvgBytesPerSec = encoder->params.bitrate / 8;
+	
+	if(ctx->vbr || ((mux_a->wf->nAvgBytesPerSec * encoder->params.samples_per_frame) % mux_a->wf->nSamplesPerSec))
+	{
+		mux_a->h.dwScale = encoder->params.samples_per_frame;
+		mux_a->h.dwRate = encoder->params.sample_rate;
+		mux_a->h.dwSampleSize = 0; // Blocksize not constant
+	}
+	else
+	{
+		mux_a->h.dwScale = (mux_a->wf->nAvgBytesPerSec * encoder->params.samples_per_frame)/ mux_a->wf->nSamplesPerSec; /* for cbr */
+		mux_a->h.dwRate = mux_a->wf->nAvgBytesPerSec;
+		mux_a->h.dwSampleSize = mux_a->h.dwScale;
+	}
+	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 = 0; //12;
+	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);
+	
+	encoder->input_format = AF_FORMAT_S16_NE;
+	encoder->min_buffer_size = mux_a->h.dwSuggestedBufferSize;
+	encoder->max_buffer_size = mux_a->h.dwSuggestedBufferSize*2;
+
+	return 1;
+}
+
+static int encode_twolame(audio_encoder_t *encoder, uint8_t *dest, void *src, int len, int max_size)
+{
+	mpae_twolame_ctx *ctx = (mpae_twolame_ctx *)encoder->priv;
+	int ret_size = 0, r2;
+	
+	len /= (2*encoder->params.channels);
+	ret_size = twolame_encode_buffer_interleaved(ctx->twolame_ctx, src, len, dest, max_size);
+	r2 = mp_decode_mp3_header(dest);	
+	mp_msg(MSGT_MENCODER, MSGL_V, "\nSIZE: %d, max: %d, r2: %d\n", ret_size, max_size, r2);
+	if(r2 > 0)
+		ret_size = r2;
+	return ret_size;
+}
+
+int close_twolame(audio_encoder_t *encoder)
+{
+	free(encoder->priv);
+	return 1;
+}
+
+static int get_frame_size(audio_encoder_t *encoder)
+{
+	int sz;
+	if(encoder->stream->buffer_len < 4)
+		return 0;
+	sz = mp_decode_mp3_header(encoder->stream->buffer);
+	if(sz <= 0)
+		return 0;
+	return sz;
+}
+
+
+int mpae_init_twolame(audio_encoder_t *encoder)
+{
+	int mode;
+	mpae_twolame_ctx *ctx = NULL;
+	
+	if(encoder->params.channels == 1)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_INFO, "ae_twolame, 1 audio channel, forcing mono mode\n");
+		mode = TWOLAME_MONO;
+	}
+	else if(encoder->params.channels == 2)
+	{
+		if(! strcasecmp(param_mode, "dual"))
+			mode = TWOLAME_DUAL_CHANNEL;
+		else if(! strcasecmp(param_mode, "jstereo"))
+			mode = TWOLAME_JOINT_STEREO;
+		else if(! strcasecmp(param_mode, "stereo"))
+			mode = TWOLAME_STEREO;
+		else
+		{
+			mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_twolame, unknown mode %s, exiting\n", param_mode);
+		}
+	}
+	else
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_twolame, Twolame can't encode > 2 channels, exiting\n");
+	
+	ctx = (mpae_twolame_ctx *) calloc(1, sizeof(mpae_twolame_ctx));
+	if(ctx == NULL)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_twolame, couldn't alloc a %d bytes context, exiting\n", sizeof(mpae_twolame_ctx));
+		return 0;
+	}
+	
+	ctx->twolame_ctx = twolame_init();
+	if(ctx->twolame_ctx == NULL)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_twolame, couldn't initial parameters from libtwolame, exiting\n");
+		free(ctx);
+		return 0;
+	}
+	ctx->vbr = 0;
+
+	if(twolame_set_num_channels(ctx->twolame_ctx, encoder->params.channels) != 0)
+		return 0;
+	if(twolame_set_mode(ctx->twolame_ctx, mode) != 0)
+		return 0;
+		
+	if(twolame_set_in_samplerate(ctx->twolame_ctx, encoder->params.sample_rate) != 0)
+		return 0;
+		
+	if(twolame_set_out_samplerate(ctx->twolame_ctx, encoder->params.sample_rate) != 0)
+		return 0;
+	
+	if(encoder->params.sample_rate < 32000)
+		twolame_set_version(ctx->twolame_ctx, TWOLAME_MPEG2);
+	else
+		twolame_set_version(ctx->twolame_ctx, TWOLAME_MPEG1);
+	
+	if(twolame_set_psymodel(ctx->twolame_ctx, param_psy) != 0)
+		return 0;
+	
+	if(twolame_set_bitrate(ctx->twolame_ctx, param_bitrate) != 0)
+		return 0;
+	
+	if(param_errprot)
+		if(twolame_set_error_protection(ctx->twolame_ctx, TRUE) != 0)
+			return 0;
+	
+	if(param_vbr != 0)
+	{
+		if(twolame_set_VBR(ctx->twolame_ctx, TRUE) != 0)
+			return 0;
+		if(twolame_set_VBR_q(ctx->twolame_ctx, param_vbr) != 0)
+			return 0;
+		if(twolame_set_padding(ctx->twolame_ctx, FALSE) != 0)
+			return 0;
+		if(param_maxvbr)
+		{
+			if(twolame_set_VBR_max_bitrate_kbps(ctx->twolame_ctx, param_maxvbr) != 0)
+				return 0;
+		}
+		ctx->vbr = 1;
+	}
+	
+	if(twolame_set_verbosity(ctx->twolame_ctx, param_debug) != 0)
+		return 0;
+	
+	if(twolame_init_params(ctx->twolame_ctx) != 0)
+		return 0;
+	
+	encoder->params.bitrate = param_bitrate * 1000;
+	encoder->params.samples_per_frame = 1152;
+	encoder->priv = ctx;
+	encoder->decode_buffer_size = 1152 * 2 * encoder->params.channels;
+	
+	encoder->bind = bind_twolame;
+	encoder->get_frame_size = get_frame_size;
+	encoder->encode = encode_twolame;
+	encoder->close = close_twolame;
+	
+	return 1;
+}
+
diff --git a/libmpcodecs/ae_twolame.h b/libmpcodecs/ae_twolame.h
new file mode 100644
index 0000000000..65d3590f9b
--- /dev/null
+++ b/libmpcodecs/ae_twolame.h
@@ -0,0 +1,14 @@
+#ifndef MPAE_TWOLAME_H
+#define MPAE_TWOLAME_H
+
+#include "ae.h"
+#include <twolame.h>
+
+typedef struct {
+	twolame_options *twolame_ctx;
+	int vbr;
+} mpae_twolame_ctx;
+
+int mpae_init_twolame(audio_encoder_t *encoder);
+
+#endif