encoding to mp2 with libtoolame - only cbr atm

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13426 b3059339-0415-0410-9bf9-f77b7e298cf2

2 files changed, 143 insertions, 0 deletions

diff --git a/libmpcodecs/ae_toolame.c b/libmpcodecs/ae_toolame.c
new file mode 100644
index 0000000000..04b88e05d4
--- /dev/null
+++ b/libmpcodecs/ae_toolame.c
@@ -0,0 +1,128 @@
+#include "m_option.h"
+#include "../mp_msg.h"
+#include <inttypes.h>
+#include "ae_toolame.h"
+
+
+static int 
+    param_bitrate = 192,
+    param_srate = 48000,
+    param_psy = 3,
+    param_maxvbr = 192,
+    param_errprot = 0,
+    param_debug = 0;
+    
+float param_vbr = 0;
+static char *param_mode = "stereo";
+    
+m_option_t toolameopts_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, 0, 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}
+};
+
+
+mpae_toolame_ctx *mpae_init_toolame(int channels, int srate)
+{
+	int mode;
+	mpae_toolame_ctx *ctx = NULL;
+	
+	if(channels == 1)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_INFO, "ae_toolame, 1 audio channel, forcing mono mode\n");
+		mode = MPG_MD_MONO;
+	}
+	else if(channels == 2)
+	{
+		if(! strcasecmp(param_mode, "dual"))
+			mode = MPG_MD_DUAL_CHANNEL;
+		else if(! strcasecmp(param_mode, "jstereo"))
+			mode = MPG_MD_JOINT_STEREO;
+		else if(! strcasecmp(param_mode, "stereo"))
+			mode = MPG_MD_STEREO;
+		else
+		{
+			mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_toolame, unknown mode %s, exiting\n", param_mode);
+		}
+	}
+	else
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_toolame, Toolame can't encode > 2 channels, exiting\n");
+	
+	ctx = (mpae_toolame_ctx *) calloc(1, sizeof(mpae_toolame_ctx));
+	if(ctx == NULL)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_toolame, couldn't alloc a %d bytes context, exiting\n", sizeof(mpae_toolame_ctx));
+		return NULL;
+	}
+	
+	ctx->toolame_ctx = toolame_init();
+	if(ctx->toolame_ctx == NULL)
+	{
+		mp_msg(MSGT_MENCODER, MSGL_ERR, "ae_toolame, couldn't initial parameters from libtoolame, exiting\n");
+		free(ctx);
+		return NULL;
+	}
+	ctx->channels = channels;
+	ctx->srate = srate;
+
+	if(toolame_setMode(ctx->toolame_ctx, mode) != 0)
+		return NULL;
+	
+	if(toolame_setPsymodel(ctx->toolame_ctx, param_psy) != 0)
+		return NULL;
+	
+	if(toolame_setSampleFreq(ctx->toolame_ctx, srate) != 0)
+		return NULL;
+	
+	if(toolame_setBitrate(ctx->toolame_ctx, param_bitrate) != 0)
+		return NULL;
+	
+	if(param_errprot)
+		if(toolame_setErrorProtection(ctx->toolame_ctx, TRUE) != 0)
+			return NULL;
+	
+	if(param_vbr > 0)
+	{
+		if(toolame_setVBR(ctx->toolame_ctx, TRUE) != 0)
+			return NULL;
+		if(toolame_setVBRLevel(ctx->toolame_ctx, param_maxvbr) != 0)
+			return NULL;
+		if(toolame_setPadding(ctx->toolame_ctx, FALSE) != 0)
+			return NULL;
+		if(toolame_setVBRUpperBitrate(ctx->toolame_ctx, param_maxvbr) != 0)
+			return NULL;
+	}
+	
+	if(toolame_setVerbosity(ctx->toolame_ctx, param_debug) != 0)
+		return NULL;
+	
+	if(toolame_init_params(ctx->toolame_ctx) != 0)
+		return NULL;
+	
+	ctx->bitrate = param_bitrate;
+	
+	return ctx;
+}
+
+
+int mpae_encode_toolame(mpae_toolame_ctx *ctx, uint8_t *dest, int nsamples, void *src, int max_size)
+{
+	int ret_size = 0, i;
+	int16_t *buffer;
+	
+	buffer = (uint16_t *) src;
+	for(i = 0; i < nsamples; i++)
+	{
+	    ctx->left_pcm[i] = buffer[2 * i];
+	    ctx->right_pcm[i] = buffer[2 * i + (ctx->channels - 1)];
+	}
+	
+	toolame_encode_buffer(ctx->toolame_ctx, ctx->left_pcm, ctx->right_pcm, nsamples, dest, max_size, &ret_size);
+	
+	return ret_size;
+}
diff --git a/libmpcodecs/ae_toolame.h b/libmpcodecs/ae_toolame.h
new file mode 100644
index 0000000000..fea0c5a117
--- /dev/null
+++ b/libmpcodecs/ae_toolame.h
@@ -0,0 +1,15 @@
+#ifndef MPAE_TOOLAME_H
+#define MPAE_TOOLAME_H
+
+#include <toolame.h>
+
+typedef struct {
+	toolame_options *toolame_ctx;
+	int channels, srate, bitrate;
+	int16_t left_pcm[1152], right_pcm[1152];
+} mpae_toolame_ctx;
+
+mpae_toolame_ctx *mpae_init_toolame(int channels, int srate);
+int mpae_encode_toolame(mpae_toolame_ctx *ctx, uint8_t *dest, int nsamples, void *src, int max_size);
+
+#endif