encoder_sys_t *p_sys;
/* We only support DVD LPCM yet. */
- if( p_enc->fmt_out.i_codec != VLC_CODEC_DVD_LPCM ||
- ( p_enc->fmt_in.audio.i_rate != 48000 &&
- p_enc->fmt_in.audio.i_rate != 96000 &&
- p_enc->fmt_in.audio.i_rate != 44100 &&
- p_enc->fmt_in.audio.i_rate != 32000 ) ||
- p_enc->fmt_in.audio.i_channels > 8 )
+ if( p_enc->fmt_out.i_codec != VLC_CODEC_DVD_LPCM )
return VLC_EGENERIC;
+ if( p_enc->fmt_in.audio.i_rate != 48000 &&
+ p_enc->fmt_in.audio.i_rate != 96000 &&
+ p_enc->fmt_in.audio.i_rate != 44100 &&
+ p_enc->fmt_in.audio.i_rate != 32000 )
+ {
+ msg_Err( p_enc, "DVD LPCM supports only sample rates of 48, 96, 44.1 or 32 kHz" );
+ return VLC_EGENERIC;
+ }
+
+ if( p_enc->fmt_in.audio.i_channels > 8 )
+ {
+ msg_Err( p_enc, "DVD LPCM supports a maximum of eight channels" );
+ return VLC_EGENERIC;
+ }
+
/* Allocate the memory needed to store the encoder's structure */
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_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_in.audio.i_bitspersample *
(p_sys->i_frame_samples + LPCM_VOB_HEADER_LEN) /
p_sys->i_frame_samples;
-
+
return VLC_SUCCESS;
}
case 32000:
i_freq_code = 3;
break;
+ default:
+ assert(0);
}
int i_bytes_consumed = 0;
memcpy( frame + 6, p_sys->p_buffer, i_kept_bytes );
memcpy( frame + 6 + i_kept_bytes, p_aout_buf->p_buffer + i_bytes_consumed, i_consume_bytes );
-
+
p_sys->i_frame_num++;
p_sys->i_buffer_used = 0;
i_bytes_consumed += i_consume_bytes;
p_block->i_dts = p_block->i_pts = p_aout_buf->i_pts +
(i * p_sys->i_frame_samples + i_start_offset) * CLOCK_FREQ / p_sys->i_rate;
p_block->i_length = p_sys->i_frame_samples * CLOCK_FREQ / p_sys->i_rate;
-
+
if( !p_first_block )
p_first_block = p_last_block = p_block;
else