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Commit 000d98c2 authored by Jean-Paul Saman's avatar Jean-Paul Saman
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Backport changes from master git to modules/codec/faad.c

parent f0b998ef
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Showing with 79 additions and 32 deletions
modules/codec/faad.c
View file @ 000d98c2
......@@ -2,7 +2,7 @@
* decoder.c: AAC decoder using libfaad2
*****************************************************************************
* Copyright (C) 2001, 2003 the VideoLAN team
* $Id$
* $Id: 6211152101577786a1f92852dfe51b98bed24fd2 $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Gildas Bazin <gbazin@videolan.org>
......@@ -47,8 +47,7 @@ vlc_module_end();
* Local prototypes
****************************************************************************/
static aout_buffer_t *DecodeBlock( decoder_t *, block_t ** );
static void DoReordering( decoder_t *, uint32_t *, uint32_t *, int, int,
uint32_t * );
static void DoReordering( uint32_t *, uint32_t *, int, int, uint32_t * );
#define MAX_CHANNEL_POSITIONS 9
......@@ -63,12 +62,14 @@ struct decoder_sys_t
/* temporary buffer */
uint8_t *p_buffer;
int i_buffer;
int i_buffer_size;
size_t i_buffer_size;
/* Channel positions of the current stream (for re-ordering) */
uint32_t pi_channel_positions[MAX_CHANNEL_POSITIONS];
vlc_bool_t b_sbr, b_ps;
int i_input_rate;
};
static const uint32_t pi_channels_in[MAX_CHANNEL_POSITIONS] =
......@@ -87,6 +88,22 @@ static const uint32_t pi_channels_ordered[MAX_CHANNEL_POSITIONS] =
AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
AOUT_CHAN_CENTER, AOUT_CHAN_REARCENTER, AOUT_CHAN_LFE
};
static const uint32_t pi_channels_guessed[MAX_CHANNEL_POSITIONS] =
{ 0, AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_LFE,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
| AOUT_CHAN_REARRIGHT,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
| AOUT_CHAN_REARRIGHT | AOUT_CHAN_CENTER,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
| AOUT_CHAN_REARRIGHT | AOUT_CHAN_CENTER | AOUT_CHAN_LFE,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_MIDDLELEFT
| AOUT_CHAN_MIDDLERIGHT | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
| AOUT_CHAN_CENTER,
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_MIDDLELEFT
| AOUT_CHAN_MIDDLERIGHT | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
| AOUT_CHAN_CENTER | AOUT_CHAN_LFE
};
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
......@@ -121,7 +138,7 @@ static int Open( vlc_object_t *p_this )
aout_DateSet( &p_sys->date, 0 );
p_dec->fmt_out.i_cat = AUDIO_ES;
if (p_this->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
if( p_dec->p_libvlc->i_cpu & CPU_CAPABILITY_FPU )
p_dec->fmt_out.i_codec = VLC_FOURCC('f','l','3','2');
else
p_dec->fmt_out.i_codec = AOUT_FMT_S16_NE;
......@@ -145,6 +162,9 @@ static int Open( vlc_object_t *p_this )
p_dec->fmt_out.audio.i_rate = i_rate;
p_dec->fmt_out.audio.i_channels = i_channels;
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[i_channels];
aout_DateInit( &p_sys->date, i_rate );
}
else
......@@ -156,7 +176,7 @@ static int Open( vlc_object_t *p_this )
/* Set the faad config */
cfg = faacDecGetCurrentConfiguration( p_sys->hfaad );
if (p_this->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
if( p_dec->p_libvlc->i_cpu & CPU_CAPABILITY_FPU )
cfg->outputFormat = FAAD_FMT_FLOAT;
else
cfg->outputFormat = FAAD_FMT_16BIT;
......@@ -164,7 +184,9 @@ static int Open( vlc_object_t *p_this )
/* buffer */
p_sys->i_buffer = p_sys->i_buffer_size = 0;
p_sys->p_buffer = 0;
p_sys->p_buffer = NULL;
p_sys->i_input_rate = INPUT_RATE_DEFAULT;
/* Faad2 can't deal with truncated data (eg. from MPEG TS) */
p_dec->b_need_packetized = VLC_TRUE;
......@@ -191,6 +213,28 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
return NULL;
}
if( p_block->i_rate > 0 )
p_sys->i_input_rate = p_block->i_rate;
/* Remove ADTS header if we have decoder specific config */
if( p_dec->fmt_in.i_extra && p_block->i_buffer > 7 )
{
if( p_block->p_buffer[0] == 0xff &&
( p_block->p_buffer[1] & 0xf0 ) == 0xf0 ) /* syncword */
{ /* ADTS header present */
size_t i_header_size; /* 7 bytes (+ 2 bytes for crc) */
i_header_size = 7 + ( ( p_block->p_buffer[1] & 0x01 ) ? 0 : 2 );
/* FIXME: multiple blocks per frame */
if( (size_t)p_block->i_buffer > i_header_size )
{
memcpy( p_block->p_buffer,
p_block->p_buffer + i_header_size,
p_block->i_buffer - i_header_size );
p_block->i_buffer -= i_header_size;
}
}
}
/* Append the block to the temporary buffer */
if( p_sys->i_buffer_size < p_sys->i_buffer + p_block->i_buffer )
{
......@@ -198,7 +242,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
p_sys->p_buffer = realloc( p_sys->p_buffer, p_sys->i_buffer_size );
}
if( p_block->i_buffer )
if( p_block->i_buffer > 0 )
{
memcpy( &p_sys->p_buffer[p_sys->i_buffer],
p_block->p_buffer, p_block->i_buffer );
......@@ -254,7 +298,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
}
/* Decode all data */
if( p_sys->i_buffer )
if( p_sys->i_buffer > 0 )
{
void *samples;
faacDecFrameInfo frame;
......@@ -320,13 +364,15 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
p_dec->p_parent->i_object_type == VLC_OBJECT_INPUT )
{
input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
char *psz_cat, *psz_ext = (frame.sbr && frame.ps) ? "SBR+PS" :
char *psz_cat;
const char *psz_ext = (frame.sbr && frame.ps) ? "SBR+PS" :
frame.sbr ? "SBR" : "PS";
msg_Dbg( p_dec, "AAC %s (channels: %u, samplerate: %lu)",
psz_ext, frame.channels, frame.samplerate );
asprintf( &psz_cat, _("Stream %d"), p_dec->fmt_in.i_id );
if( asprintf( &psz_cat, _("Stream %d"), p_dec->fmt_in.i_id ) != -1 )
{
input_Control( p_input, INPUT_ADD_INFO, psz_cat,
_("AAC extension"), "%s", psz_ext );
input_Control( p_input, INPUT_ADD_INFO, psz_cat,
......@@ -334,6 +380,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
input_Control( p_input, INPUT_ADD_INFO, psz_cat,
_("Sample rate"), _("%d Hz"), frame.samplerate );
free( psz_cat );
}
p_sys->b_sbr = frame.sbr; p_sys->b_ps = frame.ps;
}
......@@ -373,9 +420,9 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
p_out->start_date = aout_DateGet( &p_sys->date );
p_out->end_date = aout_DateIncrement( &p_sys->date,
frame.samples / frame.channels );
(frame.samples / frame.channels) * p_sys->i_input_rate / INPUT_RATE_DEFAULT );
DoReordering( p_dec, (uint32_t *)p_out->p_buffer, samples,
DoReordering( (uint32_t *)p_out->p_buffer, samples,
frame.samples / frame.channels, frame.channels,
p_sys->pi_channel_positions );
......@@ -402,7 +449,7 @@ static void Close( vlc_object_t *p_this )
decoder_sys_t *p_sys = p_dec->p_sys;
faacDecClose( p_sys->hfaad );
if( p_sys->p_buffer ) free( p_sys->p_buffer );
free( p_sys->p_buffer );
free( p_sys );
}
......@@ -410,17 +457,16 @@ static void Close( vlc_object_t *p_this )
* DoReordering: do some channel re-ordering (the ac3 channel order is
* different from the aac one).
*****************************************************************************/
static void DoReordering( decoder_t *p_dec,
uint32_t *p_out, uint32_t *p_in, int i_samples,
static void DoReordering( uint32_t *p_out, uint32_t *p_in, int i_samples,
int i_nb_channels, uint32_t *pi_chan_positions )
{
int pi_chan_table[MAX_CHANNEL_POSITIONS];
int i, j, k;
/* Find the channels mapping */
for( k = 0, j = 0; k < i_nb_channels; k++ )
for( i = 0, j = 0; i < MAX_CHANNEL_POSITIONS; i++ )
{
for( i = 0; i < MAX_CHANNEL_POSITIONS; i++ )
for( k = 0; k < i_nb_channels; k++ )
{
if( pi_channels_ordered[i] == pi_chan_positions[k] )
{
......@@ -442,3 +488,4 @@ static void DoReordering( decoder_t *p_dec,
((uint16_t *)p_out)[i * i_nb_channels + pi_chan_table[j]] =
((uint16_t *)p_in)[i * i_nb_channels + j];
}
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