#include <vlc_common.h>
#include <vlc_aout.h>
#include <vlc_codec.h>
+#include <vlc_avcodec.h>
/* ffmpeg header */
#ifdef HAVE_LIBAVCODEC_AVCODEC_H
#include "avcodec.h"
-static const unsigned int pi_channels_maps[7] =
-{
- 0,
- AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
- AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
- AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
- | AOUT_CHAN_REARRIGHT,
- AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
- | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT,
- AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
- | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE
-};
-
/*****************************************************************************
* decoder_sys_t : decoder descriptor
*****************************************************************************/
FFMPEG_COMMON_MEMBERS
/* Temporary buffer for libavcodec */
+ int i_output_max;
uint8_t *p_output;
/*
* Output properties
*/
audio_sample_format_t aout_format;
- audio_date_t end_date;
+ date_t end_date;
/*
*
/* */
int i_reject_count;
-};
-
-/*****************************************************************************
- * InitAudioDec: initialize audio decoder
- *****************************************************************************
- * The ffmpeg codec will be opened, some memory allocated.
- *****************************************************************************/
-int InitAudioDec( decoder_t *p_dec, AVCodecContext *p_context,
- AVCodec *p_codec, int i_codec_id, const char *psz_namecodec )
-{
- decoder_sys_t *p_sys;
- /* Allocate the memory needed to store the decoder's structure */
- if( ( p_dec->p_sys = p_sys =
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
- {
- return VLC_ENOMEM;
- }
-
- p_sys->p_context = p_context;
- p_sys->p_codec = p_codec;
- p_sys->i_codec_id = i_codec_id;
- p_sys->psz_namecodec = psz_namecodec;
-
- /* ***** Fill p_context with init values ***** */
- p_sys->p_context->sample_rate = p_dec->fmt_in.audio.i_rate;
- p_sys->p_context->channels = p_dec->fmt_in.audio.i_channels;
- if( !p_dec->fmt_in.audio.i_physical_channels )
- {
- msg_Warn( p_dec, "Physical channel configuration not set : guessing" );
- p_dec->fmt_in.audio.i_original_channels =
- p_dec->fmt_in.audio.i_physical_channels =
- pi_channels_maps[p_sys->p_context->channels];
- }
+ /* */
+ bool b_extract;
+ int pi_extraction[AOUT_CHAN_MAX];
+ int i_previous_channels;
+ int64_t i_previous_layout;
+};
- p_dec->fmt_out.audio.i_physical_channels =
- p_dec->fmt_out.audio.i_original_channels =
- p_dec->fmt_in.audio.i_physical_channels;
+#define BLOCK_FLAG_PRIVATE_REALLOCATED (1 << BLOCK_FLAG_PRIVATE_SHIFT)
- p_sys->p_context->block_align = p_dec->fmt_in.audio.i_blockalign;
- p_sys->p_context->bit_rate = p_dec->fmt_in.i_bitrate;
-#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
- p_sys->p_context->bits_per_sample = p_dec->fmt_in.audio.i_bitspersample;
-#else
- p_sys->p_context->bits_per_coded_sample = p_dec->fmt_in.audio.i_bitspersample;
-#endif
+static void SetupOutputFormat( decoder_t *p_dec, bool b_trust );
+static void InitDecoderConfig( decoder_t *p_dec, AVCodecContext *p_context )
+{
if( p_dec->fmt_in.i_extra > 0 )
{
const uint8_t * const p_src = p_dec->fmt_in.p_extra;
int i_offset;
int i_size;
- if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'f', 'l', 'a', 'c' ) )
+ if( p_dec->fmt_in.i_codec == VLC_CODEC_FLAC )
{
i_offset = 8;
i_size = p_dec->fmt_in.i_extra - 8;
}
- else if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'a', 'l', 'a', 'c' ) )
+ else if( p_dec->fmt_in.i_codec == VLC_CODEC_ALAC )
{
static const uint8_t p_pattern[] = { 0, 0, 0, 36, 'a', 'l', 'a', 'c' };
/* Find alac atom XXX it is a bit ugly */
if( i_size > 0 )
{
- p_sys->p_context->extradata =
+ p_context->extradata =
malloc( i_size + FF_INPUT_BUFFER_PADDING_SIZE );
- if( p_sys->p_context->extradata )
+ if( p_context->extradata )
{
- uint8_t *p_dst = p_sys->p_context->extradata;
+ uint8_t *p_dst = p_context->extradata;
- p_sys->p_context->extradata_size = i_size;
+ p_context->extradata_size = i_size;
memcpy( &p_dst[0], &p_src[i_offset], i_size );
memset( &p_dst[i_size], 0, FF_INPUT_BUFFER_PADDING_SIZE );
}
else
{
- p_sys->p_context->extradata_size = 0;
- p_sys->p_context->extradata = NULL;
+ p_context->extradata_size = 0;
+ p_context->extradata = NULL;
}
+}
- /* ***** Open the codec ***** */
- vlc_mutex_lock( &avcodec_lock );
+/*****************************************************************************
+ * InitAudioDec: initialize audio decoder
+ *****************************************************************************
+ * The ffmpeg codec will be opened, some memory allocated.
+ *****************************************************************************/
+int InitAudioDec( decoder_t *p_dec, AVCodecContext *p_context,
+ AVCodec *p_codec, int i_codec_id, const char *psz_namecodec )
+{
+ decoder_sys_t *p_sys;
+
+ /* Allocate the memory needed to store the decoder's structure */
+ if( ( p_dec->p_sys = p_sys = malloc(sizeof(*p_sys)) ) == NULL )
+ {
+ return VLC_ENOMEM;
+ }
+
+ p_codec->type = CODEC_TYPE_AUDIO;
+ p_context->codec_type = CODEC_TYPE_AUDIO;
+ p_context->codec_id = i_codec_id;
+ p_sys->p_context = p_context;
+ p_sys->p_codec = p_codec;
+ p_sys->i_codec_id = i_codec_id;
+ p_sys->psz_namecodec = psz_namecodec;
+ p_sys->b_delayed_open = false;
+
+ // Initialize decoder extradata
+ InitDecoderConfig( p_dec, p_context);
- if (avcodec_open( p_sys->p_context, p_sys->p_codec ) < 0)
+ /* ***** Open the codec ***** */
+ if( ffmpeg_OpenCodec( p_dec ) < 0 )
{
- vlc_mutex_unlock( &avcodec_lock );
msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec );
free( p_sys->p_context->extradata );
free( p_sys );
return VLC_EGENERIC;
}
- vlc_mutex_unlock( &avcodec_lock );
- msg_Dbg( p_dec, "ffmpeg codec (%s) started", p_sys->psz_namecodec );
+ switch( i_codec_id )
+ {
+ case CODEC_ID_WAVPACK:
+ p_sys->i_output_max = 8 * sizeof(int32_t) * 131072;
+ break;
+ case CODEC_ID_TTA:
+ p_sys->i_output_max = p_sys->p_context->channels * sizeof(int32_t) * p_sys->p_context->sample_rate * 2;
+ break;
+ case CODEC_ID_FLAC:
+ p_sys->i_output_max = 8 * sizeof(int32_t) * 65535;
+ break;
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 35, 0 )
+ case CODEC_ID_WMAPRO:
+ p_sys->i_output_max = 8 * sizeof(float) * 6144; /* (1 << 12) * 3/2 */
+ break;
+#endif
+ default:
+ p_sys->i_output_max = 0;
+ break;
+ }
+ if( p_sys->i_output_max < AVCODEC_MAX_AUDIO_FRAME_SIZE )
+ p_sys->i_output_max = AVCODEC_MAX_AUDIO_FRAME_SIZE;
+ msg_Dbg( p_dec, "Using %d bytes output buffer", p_sys->i_output_max );
+ p_sys->p_output = av_malloc( p_sys->i_output_max );
- p_sys->p_output = malloc( AVCODEC_MAX_AUDIO_FRAME_SIZE );
p_sys->p_samples = NULL;
p_sys->i_samples = 0;
p_sys->i_reject_count = 0;
+ p_sys->b_extract = false;
+ p_sys->i_previous_channels = 0;
+ p_sys->i_previous_layout = 0;
- aout_DateSet( &p_sys->end_date, 0 );
- if( p_dec->fmt_in.audio.i_rate )
- aout_DateInit( &p_sys->end_date, p_dec->fmt_in.audio.i_rate );
-
- /* Set output properties */
+ /* */
p_dec->fmt_out.i_cat = AUDIO_ES;
- p_dec->fmt_out.i_codec = AOUT_FMT_S16_NE;
- p_dec->fmt_out.audio.i_bitspersample = 16;
+ /* Try to set as much information as possible but do not trust it */
+ SetupOutputFormat( p_dec, false );
+
+ date_Set( &p_sys->end_date, 0 );
+ if( p_dec->fmt_out.audio.i_rate )
+ date_Init( &p_sys->end_date, p_dec->fmt_out.audio.i_rate, 1 );
+ else if( p_dec->fmt_in.audio.i_rate )
+ date_Init( &p_sys->end_date, p_dec->fmt_in.audio.i_rate, 1 );
return VLC_SUCCESS;
}
if( i_samples == 0 ) return NULL;
- if( ( p_buffer = p_dec->pf_aout_buffer_new( p_dec, i_samples ) ) == NULL )
- {
- msg_Err( p_dec, "cannot get aout buffer" );
+ if( ( p_buffer = decoder_NewAudioBuffer( p_dec, i_samples ) ) == NULL )
return NULL;
- }
- p_buffer->start_date = aout_DateGet( &p_sys->end_date );
- p_buffer->end_date = aout_DateIncrement( &p_sys->end_date, i_samples );
+ p_buffer->i_pts = date_Get( &p_sys->end_date );
+ p_buffer->i_length = date_Increment( &p_sys->end_date, i_samples )
+ - p_buffer->i_pts;
- memcpy( p_buffer->p_buffer, p_sys->p_samples, p_buffer->i_nb_bytes );
+ if( p_sys->b_extract )
+ aout_ChannelExtract( p_buffer->p_buffer, p_dec->fmt_out.audio.i_channels,
+ p_sys->p_samples, p_sys->p_context->channels, i_samples,
+ p_sys->pi_extraction, p_dec->fmt_out.audio.i_bitspersample );
+ else
+ memcpy( p_buffer->p_buffer, p_sys->p_samples, p_buffer->i_buffer );
- p_sys->p_samples += p_buffer->i_nb_bytes;
+ p_sys->p_samples += i_samples * p_sys->p_context->channels * ( p_dec->fmt_out.audio.i_bitspersample / 8 );
p_sys->i_samples -= i_samples;
return p_buffer;
{
block_Release( p_block );
avcodec_flush_buffers( p_sys->p_context );
+ p_sys->i_samples = 0;
+ date_Set( &p_sys->end_date, 0 );
if( p_sys->i_codec_id == CODEC_ID_MP2 || p_sys->i_codec_id == CODEC_ID_MP3 )
p_sys->i_reject_count = 3;
return p_buffer;
}
- if( !aout_DateGet( &p_sys->end_date ) && !p_block->i_pts )
+ if( !date_Get( &p_sys->end_date ) && !p_block->i_pts )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
block_Release( p_block );
return NULL;
}
- if( p_block->i_buffer > AVCODEC_MAX_AUDIO_FRAME_SIZE )
- {
- /* Grow output buffer if necessary (eg. for PCM data) */
- p_sys->p_output = realloc(p_sys->p_output, p_block->i_buffer);
- }
- *pp_block = p_block = block_Realloc( p_block, 0, p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE );
- if( !p_block )
- return NULL;
- p_block->i_buffer -= FF_INPUT_BUFFER_PADDING_SIZE;
- memset( &p_block->p_buffer[p_block->i_buffer], 0, FF_INPUT_BUFFER_PADDING_SIZE );
-
-#if LIBAVCODEC_VERSION_INT >= ((52<<16)+(0<<8)+0)
- i_output = __MAX( AVCODEC_MAX_AUDIO_FRAME_SIZE, p_block->i_buffer );
- i_used = avcodec_decode_audio2( p_sys->p_context,
- (int16_t*)p_sys->p_output, &i_output,
- p_block->p_buffer, p_block->i_buffer );
-#else
- i_used = avcodec_decode_audio( p_sys->p_context,
- (int16_t*)p_sys->p_output, &i_output,
- p_block->p_buffer, p_block->i_buffer );
-#endif
-
- if( i_used < 0 || i_output < 0 )
+ if( (p_block->i_flags & BLOCK_FLAG_PRIVATE_REALLOCATED) == 0 )
{
- if( i_used < 0 )
- msg_Warn( p_dec, "cannot decode one frame (%zu bytes)",
- p_block->i_buffer );
+ *pp_block = p_block = block_Realloc( p_block, 0, p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE );
+ if( !p_block )
+ return NULL;
+ p_block->i_buffer -= FF_INPUT_BUFFER_PADDING_SIZE;
+ memset( &p_block->p_buffer[p_block->i_buffer], 0, FF_INPUT_BUFFER_PADDING_SIZE );
- block_Release( p_block );
- return NULL;
+ p_block->i_flags |= BLOCK_FLAG_PRIVATE_REALLOCATED;
}
- else if( (size_t)i_used > p_block->i_buffer )
+
+ do
{
- i_used = p_block->i_buffer;
- }
+ i_output = __MAX( p_block->i_buffer, p_sys->i_output_max );
+ if( i_output > p_sys->i_output_max )
+ {
+ /* Grow output buffer if necessary (eg. for PCM data) */
+ p_sys->p_output = av_realloc( p_sys->p_output, i_output );
+ }
- p_block->i_buffer -= i_used;
- p_block->p_buffer += i_used;
+ i_used = avcodec_decode_audio2( p_sys->p_context,
+ (int16_t*)p_sys->p_output, &i_output,
+ p_block->p_buffer, p_block->i_buffer );
- if( p_sys->p_context->channels <= 0 || p_sys->p_context->channels > 6 ||
+ if( i_used < 0 || i_output < 0 )
+ {
+ if( i_used < 0 )
+ msg_Warn( p_dec, "cannot decode one frame (%zu bytes)",
+ p_block->i_buffer );
+
+ block_Release( p_block );
+ return NULL;
+ }
+ else if( (size_t)i_used > p_block->i_buffer )
+ {
+ i_used = p_block->i_buffer;
+ }
+
+ p_block->i_buffer -= i_used;
+ p_block->p_buffer += i_used;
+
+ } while( p_block->i_buffer > 0 && i_output <= 0 );
+
+ if( p_sys->p_context->channels <= 0 || p_sys->p_context->channels > 8 ||
p_sys->p_context->sample_rate <= 0 )
{
msg_Warn( p_dec, "invalid audio properties channels count %d, sample rate %d",
if( p_dec->fmt_out.audio.i_rate != (unsigned int)p_sys->p_context->sample_rate )
{
- aout_DateInit( &p_sys->end_date, p_sys->p_context->sample_rate );
- aout_DateSet( &p_sys->end_date, p_block->i_pts );
+ date_Init( &p_sys->end_date, p_sys->p_context->sample_rate, 1 );
+ date_Set( &p_sys->end_date, p_block->i_pts );
}
/* **** Set audio output parameters **** */
- p_dec->fmt_out.audio.i_rate = p_sys->p_context->sample_rate;
- p_dec->fmt_out.audio.i_channels = p_sys->p_context->channels;
- p_dec->fmt_out.audio.i_original_channels =
- p_dec->fmt_out.audio.i_physical_channels =
- pi_channels_maps[p_sys->p_context->channels];
+ SetupOutputFormat( p_dec, true );
if( p_block->i_pts != 0 &&
- p_block->i_pts != aout_DateGet( &p_sys->end_date ) )
+ p_block->i_pts != date_Get( &p_sys->end_date ) )
{
- aout_DateSet( &p_sys->end_date, p_block->i_pts );
+ date_Set( &p_sys->end_date, p_block->i_pts );
}
p_block->i_pts = 0;
/* **** Now we can output these samples **** */
- p_sys->i_samples = i_output / sizeof(int16_t) / p_sys->p_context->channels;
+ p_sys->i_samples = i_output / (p_dec->fmt_out.audio.i_bitspersample / 8) / p_sys->p_context->channels;
p_sys->p_samples = p_sys->p_output;
/* Silent unwanted samples */
{
decoder_sys_t *p_sys = p_dec->p_sys;
- free( p_sys->p_output );
+ av_free( p_sys->p_output );
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+
+void GetVlcAudioFormat( vlc_fourcc_t *pi_codec, unsigned *pi_bits, int i_sample_fmt )
+{
+ switch( i_sample_fmt )
+ {
+ case SAMPLE_FMT_U8:
+ *pi_codec = VLC_CODEC_U8;
+ *pi_bits = 8;
+ break;
+ case SAMPLE_FMT_S32:
+ *pi_codec = VLC_CODEC_S32N;
+ *pi_bits = 32;
+ break;
+ case SAMPLE_FMT_FLT:
+ *pi_codec = VLC_CODEC_FL32;
+ *pi_bits = 32;
+ break;
+ case SAMPLE_FMT_DBL:
+ *pi_codec = VLC_CODEC_FL64;
+ *pi_bits = 64;
+ break;
+
+ case SAMPLE_FMT_S16:
+ default:
+ *pi_codec = VLC_CODEC_S16N;
+ *pi_bits = 16;
+ break;
+ }
+}
+
+static const uint64_t pi_channels_map[][2] =
+{
+ { CH_FRONT_LEFT, AOUT_CHAN_LEFT },
+ { CH_FRONT_RIGHT, AOUT_CHAN_RIGHT },
+ { CH_FRONT_CENTER, AOUT_CHAN_CENTER },
+ { CH_LOW_FREQUENCY, AOUT_CHAN_LFE },
+ { CH_BACK_LEFT, AOUT_CHAN_REARLEFT },
+ { CH_BACK_RIGHT, AOUT_CHAN_REARRIGHT },
+ { CH_FRONT_LEFT_OF_CENTER, 0 },
+ { CH_FRONT_RIGHT_OF_CENTER, 0 },
+ { CH_BACK_CENTER, AOUT_CHAN_REARCENTER },
+ { CH_SIDE_LEFT, AOUT_CHAN_MIDDLELEFT },
+ { CH_SIDE_RIGHT, AOUT_CHAN_MIDDLERIGHT },
+ { CH_TOP_CENTER, 0 },
+ { CH_TOP_FRONT_LEFT, 0 },
+ { CH_TOP_FRONT_CENTER, 0 },
+ { CH_TOP_FRONT_RIGHT, 0 },
+ { CH_TOP_BACK_LEFT, 0 },
+ { CH_TOP_BACK_CENTER, 0 },
+ { CH_TOP_BACK_RIGHT, 0 },
+ { CH_STEREO_LEFT, 0 },
+ { CH_STEREO_RIGHT, 0 },
+};
+
+static void SetupOutputFormat( decoder_t *p_dec, bool b_trust )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+
+ GetVlcAudioFormat( &p_dec->fmt_out.i_codec,
+ &p_dec->fmt_out.audio.i_bitspersample,
+ p_sys->p_context->sample_fmt );
+ p_dec->fmt_out.audio.i_rate = p_sys->p_context->sample_rate;
+
+ /* */
+ if( p_sys->i_previous_channels == p_sys->p_context->channels &&
+ p_sys->i_previous_layout == p_sys->p_context->channel_layout )
+ return;
+ if( b_trust )
+ {
+ p_sys->i_previous_channels = p_sys->p_context->channels;
+ p_sys->i_previous_layout = p_sys->p_context->channel_layout;
+ }
+
+ /* Specified order
+ * FIXME should we use fmt_in.audio.i_physical_channels or not ?
+ */
+ const unsigned i_order_max = 8 * sizeof(p_sys->p_context->channel_layout);
+ uint32_t pi_order_src[i_order_max];
+ int i_channels_src = 0;
+
+ if( p_sys->p_context->channel_layout )
+ {
+ for( unsigned i = 0; i < sizeof(pi_channels_map)/sizeof(*pi_channels_map); i++ )
+ {
+ if( p_sys->p_context->channel_layout & pi_channels_map[i][0] )
+ pi_order_src[i_channels_src++] = pi_channels_map[i][1];
+ }
+ }
+ else
+ {
+ /* Create default order */
+ if( b_trust )
+ msg_Warn( p_dec, "Physical channel configuration not set : guessing" );
+ for( unsigned int i = 0; i < __MIN( i_order_max, (unsigned)p_sys->p_context->channels ); i++ )
+ {
+ if( i < sizeof(pi_channels_map)/sizeof(*pi_channels_map) )
+ pi_order_src[i_channels_src++] = pi_channels_map[i][1];
+ }
+ }
+ if( i_channels_src != p_sys->p_context->channels && b_trust )
+ msg_Err( p_dec, "Channel layout not understood" );
+
+ uint32_t i_layout_dst;
+ int i_channels_dst;
+ p_sys->b_extract = aout_CheckChannelExtraction( p_sys->pi_extraction,
+ &i_layout_dst, &i_channels_dst,
+ NULL, pi_order_src, i_channels_src );
+ if( i_channels_dst != i_channels_src && b_trust )
+ msg_Warn( p_dec, "%d channels are dropped", i_channels_src - i_channels_dst );
+
+ p_dec->fmt_out.audio.i_physical_channels =
+ p_dec->fmt_out.audio.i_original_channels = i_layout_dst;
+ p_dec->fmt_out.audio.i_channels = i_channels_dst;
}
+
projects / vlc / blobdiff