set_capability( "packetizer", 100 )
set_callbacks( OpenPacketizer, CloseCommon )
+#ifdef ENABLE_SOUT
add_submodule ()
set_description( N_("Linear PCM audio encoder") )
set_capability( "encoder", 100 )
set_callbacks( OpenEncoder, CloseEncoder )
add_shortcut( "lpcm" )
+#endif
vlc_module_end ()
int i_type;
};
+#ifdef ENABLE_SOUT
struct encoder_sys_t
{
int i_channels;
int i_buffer_used;
int i_frame_num;
};
+#endif
/*
* LPCM DVD header :
- * - number of frames in this packet (8 bits)
- * - first access unit (16 bits) == 0x0003 ?
- * - emphasis (1 bit)
- * - mute (1 bit)
- * - reserved (1 bit)
- * - current frame (5 bits)
- * - quantisation (2 bits) 0 == 16bps, 1 == 20bps, 2 == 24bps, 3 == illegal
- * - frequency (2 bits) 0 == 48 kHz, 1 == 96 kHz, 2 == 44.1 kHz, 3 == 32 kHz
- * - reserved (1 bit)
+ * - frame number (8 bits)
+ * - unknown (16 bits) == 0x0003 ?
+ * - unknown (4 bits)
+ * - current frame (4 bits)
+ * - unknown (2 bits)
+ * - frequency (2 bits) 0 == 48 kHz, 1 == 32 kHz, 2 == ?, 3 == ?
+ * - unknown (1 bit)
* - number of channels - 1 (3 bits) 1 == 2 channels
- * - dynamic range (8 bits) 0x80 == neutral
+ * - start code (8 bits) == 0x80
*
* LPCM DVD-A header (http://dvd-audio.sourceforge.net/spec/aob.shtml)
* - continuity counter (8 bits, clipped to 0x00-0x1f)
free( p_dec->p_sys );
}
+#ifdef ENABLE_SOUT
/*****************************************************************************
* OpenEncoder: lpcm encoder construction
*****************************************************************************/
if( ( p_enc->p_sys = p_sys =
(encoder_sys_t *)malloc(sizeof(encoder_sys_t)) ) == NULL )
return VLC_ENOMEM;
+
+ /* In DVD LCPM, a frame is always 150 PTS ticks. */
+ p_sys->i_frame_samples = p_enc->fmt_in.audio.i_rate * 150 / 90000;
+ p_sys->p_buffer = (uint8_t *)malloc(
+ p_sys->i_frame_samples *
+ p_enc->fmt_in.audio.i_channels *
+ p_enc->fmt_in.audio.i_bitspersample);
+ p_sys->i_buffer_used = 0;
+ p_sys->i_frame_num = 0;
+ p_sys->i_channels = p_enc->fmt_in.audio.i_channels;
+ p_sys->i_rate = p_enc->fmt_in.audio.i_rate;
+
p_enc->pf_encode_audio = EncodeFrames;
p_enc->fmt_in.i_codec = p_enc->fmt_out.i_codec;
p_enc->fmt_out.i_bitrate =
p_enc->fmt_in.audio.i_channels *
p_enc->fmt_in.audio.i_rate *
- p_enc->fmt_in.audio.i_bitspersample;
-
- p_sys->i_channels = p_enc->fmt_in.audio.i_channels;
- p_sys->i_rate = p_enc->fmt_in.audio.i_rate;
+ p_enc->fmt_in.audio.i_bitspersample *
+ (p_sys->i_frame_samples + LPCM_VOB_HEADER_LEN) /
+ p_sys->i_frame_samples;
- /* In DVD LCPM, a frame is always 150 PTS ticks. */
- p_sys->i_frame_samples = p_enc->fmt_in.audio.i_rate * 150 / 90000;
- p_sys->p_buffer = (uint8_t *)malloc(
- p_sys->i_frame_samples *
- p_enc->fmt_in.audio.i_channels *
- p_enc->fmt_in.audio.i_bitspersample);
- p_sys->i_buffer_used = 0;
- p_sys->i_frame_num = 0;
-
return VLC_SUCCESS;
}
if( !p_first_block )
p_first_block = p_last_block = p_block;
else
- block_ChainLastAppend( &p_last_block, p_block );
+ p_last_block = p_last_block->p_next = p_block;
}
memcpy( p_sys->p_buffer,
return p_first_block;
}
+#endif
/*****************************************************************************
*