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Commit 11cd21f9 authored by Laurent Aimar's avatar Laurent Aimar
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* wav: es_format_t

parent b2c9cc06
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Showing with 67 additions and 101 deletions
modules/demux/wav.c
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/*****************************************************************************
* wav.c : wav file input module for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: wav.c,v 1.7 2003/09/12 16:26:40 fenrir Exp $
* Copyright (C) 2001-2003 VideoLAN
* $Id: wav.c,v 1.8 2003/11/11 02:49:26 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -52,8 +52,8 @@ static int Demux ( input_thread_t * );
struct demux_sys_t
{
WAVEFORMATEX *p_wf;
es_descriptor_t *p_es;
es_format_t fmt;
es_out_id_t *p_es;
int64_t i_data_pos;
unsigned int i_data_size;
......@@ -84,8 +84,8 @@ static int Open( vlc_object_t * p_this )
demux_sys_t *p_sys;
uint8_t *p_peek;
WAVEFORMATEX *p_wf;
unsigned int i_size;
vlc_fourcc_t i_fourcc;
char *psz_name;
/* Is it a wav file ? */
......@@ -103,7 +103,6 @@ static int Open( vlc_object_t * p_this )
p_input->pf_demux = Demux;
p_input->pf_demux_control = demux_vaControlDefault;
p_input->p_demux_data = p_sys = malloc( sizeof( demux_sys_t ) );
p_sys->p_wf = NULL;
p_sys->p_es = NULL;
p_sys->i_time = 0;
......@@ -124,52 +123,41 @@ static int Open( vlc_object_t * p_this )
stream_Read( p_input->s, NULL, 8 ); /* cannot fail */
/* load waveformatex */
p_sys->p_wf = malloc( __EVEN( i_size ) + 2 ); /* +2, for raw audio -> no cbSize */
p_sys->p_wf->cbSize = 0;
p_wf = malloc( __EVEN( i_size ) + 2 ); /* +2, for raw audio -> no cbSize */
p_wf->cbSize = 0;
if( stream_Read( p_input->s,
p_sys->p_wf, __EVEN( i_size ) ) < (int)__EVEN( i_size ) )
p_wf, __EVEN( i_size ) ) < (int)__EVEN( i_size ) )
{
msg_Err( p_input, "cannot load 'fmt ' chunk" );
goto error;
}
/* le->me */
p_sys->p_wf->wFormatTag = GetWLE ( &p_sys->p_wf->wFormatTag );
p_sys->p_wf->nChannels = GetWLE ( &p_sys->p_wf->nChannels );
p_sys->p_wf->nSamplesPerSec = GetDWLE( &p_sys->p_wf->nSamplesPerSec );
p_sys->p_wf->nAvgBytesPerSec = GetDWLE( &p_sys->p_wf->nAvgBytesPerSec );
p_sys->p_wf->nBlockAlign = GetWLE ( &p_sys->p_wf->nBlockAlign );
p_sys->p_wf->wBitsPerSample = GetWLE ( &p_sys->p_wf->wBitsPerSample );
p_sys->p_wf->cbSize = GetWLE ( &p_sys->p_wf->cbSize );
es_format_Init( &p_sys->fmt, AUDIO_ES, 0 );
wf_tag_to_fourcc( GetWLE( &p_wf->wFormatTag ), &p_sys->fmt.i_codec, &psz_name );
p_sys->fmt.audio.i_channels = GetWLE ( &p_wf->nChannels );
p_sys->fmt.audio.i_samplerate = GetDWLE( &p_wf->nSamplesPerSec );
p_sys->fmt.audio.i_blockalign = GetWLE ( &p_wf->nBlockAlign );
p_sys->fmt.audio.i_bitrate = GetDWLE( &p_wf->nAvgBytesPerSec ) * 8;
p_sys->fmt.audio.i_bitspersample = GetWLE ( &p_wf->wBitsPerSample );;
msg_Dbg( p_input, "format:0x%4.4x channels:%d %dHz %dKo/s blockalign:%d bits/samples:%d extra size:%d",
p_sys->p_wf->wFormatTag,
p_sys->p_wf->nChannels,
p_sys->p_wf->nSamplesPerSec,
p_sys->p_wf->nAvgBytesPerSec / 1024,
p_sys->p_wf->nBlockAlign,
p_sys->p_wf->wBitsPerSample,
p_sys->p_wf->cbSize );
if( ChunkFind( p_input, "data", &p_sys->i_data_size ) )
p_sys->fmt.i_extra = GetWLE ( &p_wf->cbSize );
if( p_sys->fmt.i_extra > 0 )
{
msg_Err( p_input, "cannot find 'data' chunk" );
goto error;
p_sys->fmt.p_extra = malloc( p_sys->fmt.i_extra );
memcpy( p_sys->fmt.p_extra, &p_wf[1], p_sys->fmt.i_extra );
}
p_sys->i_data_pos = stream_Tell( p_input->s );
stream_Read( p_input->s, NULL, 8 ); /* cannot fail */
wf_tag_to_fourcc( p_sys->p_wf->wFormatTag, &i_fourcc, &psz_name );
if( i_fourcc == VLC_FOURCC( 'u', 'n', 'd', 'f' ) )
{
msg_Err( p_input,"unrecognize audio format(0x%x)",
p_sys->p_wf->wFormatTag );
goto error;
}
switch( i_fourcc )
msg_Dbg( p_input, "format:0x%4.4x channels:%d %dHz %dKo/s blockalign:%d bits/samples:%d extra size:%d",
GetWLE( &p_wf->wFormatTag ),
p_sys->fmt.audio.i_channels,
p_sys->fmt.audio.i_samplerate,
p_sys->fmt.audio.i_bitrate / 8 / 1024,
p_sys->fmt.audio.i_blockalign,
p_sys->fmt.audio.i_bitspersample,
p_sys->fmt.i_extra );
free( p_wf );
switch( p_sys->fmt.i_codec )
{
case VLC_FOURCC( 'a', 'r', 'a', 'w' ):
case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
......@@ -192,11 +180,21 @@ static int Open( vlc_object_t * p_this )
/* FIXME set end of area FIXME */
goto relay;
default:
msg_Err( p_input, "unsupported codec (%4.4s)", (char*)&i_fourcc );
msg_Err( p_input, "unsupported codec (%4.4s)", (char*)&p_sys->fmt.i_codec );
goto error;
}
msg_Dbg( p_input, "found %s audio format", psz_name );
if( ChunkFind( p_input, "data", &p_sys->i_data_size ) )
{
msg_Err( p_input, "cannot find 'data' chunk" );
goto error;
}
p_sys->i_data_pos = stream_Tell( p_input->s );
stream_Read( p_input->s, NULL, 8 ); /* cannot fail */
/* create one program */
vlc_mutex_lock( &p_input->stream.stream_lock );
......@@ -206,49 +204,20 @@ static int Open( vlc_object_t * p_this )
msg_Err( p_input, "cannot init stream" );
goto error;
}
if( input_AddProgram( p_input, 0, 0) == NULL )
{
vlc_mutex_unlock( &p_input->stream.stream_lock );
msg_Err( p_input, "cannot add program" );
goto error;
}
p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
p_input->stream.i_mux_rate = 0;
if( p_sys->i_data_size > 0 )
{
p_input->stream.i_mux_rate = (mtime_t)p_sys->i_frame_size *
(mtime_t)1000000 / 50 / p_sys->i_frame_length;
}
else
{
p_input->stream.i_mux_rate = 0;
}
p_sys->p_es = input_AddES( p_input,
p_input->stream.p_selected_program,
1, AUDIO_ES, NULL, 0 );
p_sys->p_es->i_stream_id = 1;
p_sys->p_es->i_fourcc = i_fourcc;
p_sys->p_es->p_waveformatex = malloc( sizeof( WAVEFORMATEX ) + p_sys->p_wf->cbSize );
memcpy( p_sys->p_es->p_waveformatex,
p_sys->p_wf,
sizeof( WAVEFORMATEX ) + p_sys->p_wf->cbSize );
input_SelectES( p_input, p_sys->p_es );
p_input->stream.p_selected_program->b_is_ok = 1;
vlc_mutex_unlock( &p_input->stream.stream_lock );
p_sys->p_es = es_out_Add( p_input->p_es_out, &p_sys->fmt );
return VLC_SUCCESS;
error:
relay:
if( p_sys->p_wf )
{
free( p_sys->p_wf );
}
free( p_sys );
return VLC_EGENERIC;
}
......@@ -266,9 +235,9 @@ static int Demux( input_thread_t *p_input )
if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
{
i_pos = stream_Tell( p_input->s );
if( p_sys->p_wf->nBlockAlign != 0 )
if( p_sys->fmt.audio.i_blockalign != 0 )
{
i_pos += p_sys->p_wf->nBlockAlign - i_pos % p_sys->p_wf->nBlockAlign;
i_pos += p_sys->fmt.audio.i_blockalign - i_pos % p_sys->fmt.audio.i_blockalign;
if( stream_Seek( p_input->s, i_pos ) )
{
msg_Err( p_input, "stream_Sekk failed (cannot resync)" );
......@@ -299,15 +268,10 @@ static int Demux( input_thread_t *p_input )
p_input->stream.p_selected_program,
p_sys->i_time * 9 / 100 );
if( !p_sys->p_es->p_decoder_fifo )
{
msg_Err( p_input, "no audio decoder" );
input_DeletePES( p_input->p_method_data, p_pes );
return( -1 );
}
es_out_Send( p_input->p_es_out, p_sys->p_es, p_pes );
input_DecodePES( p_sys->p_es->p_decoder_fifo, p_pes );
p_sys->i_time += p_sys->i_frame_length;
return( 1 );
}
......@@ -319,7 +283,6 @@ static void Close ( vlc_object_t * p_this )
input_thread_t *p_input = (input_thread_t *)p_this;
demux_sys_t *p_sys = p_input->p_demux_data;
free( p_sys->p_wf );
free( p_sys );
}
......@@ -367,27 +330,28 @@ static void FrameInfo_PCM( input_thread_t *p_input,
unsigned int *pi_size,
mtime_t *pi_length )
{
WAVEFORMATEX *p_wf = p_input->p_demux_data->p_wf;
demux_sys_t *p_sys = p_input->p_demux_data;
int i_samples;
int i_bytes;
int i_modulo;
/* read samples for 50ms of */
i_samples = __MAX( p_wf->nSamplesPerSec / 20, 1 );
i_samples = __MAX( p_sys->fmt.audio.i_samplerate / 20, 1 );
*pi_length = (mtime_t)1000000 *
(mtime_t)i_samples /
(mtime_t)p_wf->nSamplesPerSec;
(mtime_t)p_sys->fmt.audio.i_samplerate;
i_bytes = i_samples * p_wf->nChannels * ( (p_wf->wBitsPerSample + 7) / 8 );
i_bytes = i_samples * p_sys->fmt.audio.i_channels * ( (p_sys->fmt.audio.i_bitspersample + 7) / 8 );
if( p_wf->nBlockAlign > 0 )
if( p_sys->fmt.audio.i_blockalign > 0 )
{
if( ( i_modulo = i_bytes % p_wf->nBlockAlign ) != 0 )
if( ( i_modulo = i_bytes % p_sys->fmt.audio.i_blockalign ) != 0 )
{
i_bytes += p_wf->nBlockAlign - i_modulo;
i_bytes += p_sys->fmt.audio.i_blockalign - i_modulo;
}
}
*pi_size = i_bytes;
......@@ -397,33 +361,35 @@ static void FrameInfo_MS_ADPCM( input_thread_t *p_input,
unsigned int *pi_size,
mtime_t *pi_length )
{
WAVEFORMATEX *p_wf = p_input->p_demux_data->p_wf;
demux_sys_t *p_sys = p_input->p_demux_data;
int i_samples;
i_samples = 2 + 2 * ( p_wf->nBlockAlign -
7 * p_wf->nChannels ) / p_wf->nChannels;
i_samples = 2 + 2 * ( p_sys->fmt.audio.i_blockalign -
7 * p_sys->fmt.audio.i_channels ) / p_sys->fmt.audio.i_channels;
*pi_length = (mtime_t)1000000 *
(mtime_t)i_samples /
(mtime_t)p_wf->nSamplesPerSec;
(mtime_t)p_sys->fmt.audio.i_samplerate;
*pi_size = p_wf->nBlockAlign;
*pi_size = p_sys->fmt.audio.i_blockalign;
}
static void FrameInfo_IMA_ADPCM( input_thread_t *p_input,
unsigned int *pi_size,
mtime_t *pi_length )
{
WAVEFORMATEX *p_wf = p_input->p_demux_data->p_wf;
demux_sys_t *p_sys = p_input->p_demux_data;
int i_samples;
i_samples = 2 * ( p_wf->nBlockAlign -
4 * p_wf->nChannels ) / p_wf->nChannels;
i_samples = 2 * ( p_sys->fmt.audio.i_blockalign -
4 * p_sys->fmt.audio.i_channels ) / p_sys->fmt.audio.i_channels;
*pi_length = (mtime_t)1000000 *
(mtime_t)i_samples /
(mtime_t)p_wf->nSamplesPerSec;
(mtime_t)p_sys->fmt.audio.i_samplerate;
*pi_size = p_wf->nBlockAlign;
*pi_size = p_sys->fmt.audio.i_blockalign;
}
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