]> git.sesse.net Git - vlc/blobdiff - modules/codec/avcodec/audio.c
s/informations/information/
[vlc] / modules / codec / avcodec / audio.c
index b7cd91801d13600563c00bd97c4185b7bb1502da..ac31b7c475e8acad76fac059f6d892df522daac6 100644 (file)
@@ -78,6 +78,8 @@ struct decoder_sys_t
     int64_t i_previous_layout;
 };
 
+#define BLOCK_FLAG_PRIVATE_REALLOCATED (1 << BLOCK_FLAG_PRIVATE_SHIFT)
+
 static void SetupOutputFormat( decoder_t *p_dec, bool b_trust );
 
 /*****************************************************************************
@@ -111,11 +113,7 @@ int InitAudioDec( decoder_t *p_dec, AVCodecContext *p_context,
 
     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 < AV_VERSION_INT( 52, 0, 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
 
     if( p_dec->fmt_in.i_extra > 0 )
     {
@@ -215,15 +213,17 @@ int InitAudioDec( decoder_t *p_dec, AVCodecContext *p_context,
     p_sys->i_previous_channels = 0;
     p_sys->i_previous_layout = 0;
 
-    date_Set( &p_sys->end_date, 0 );
-    if( p_dec->fmt_in.audio.i_rate )
-        date_Init( &p_sys->end_date, p_dec->fmt_in.audio.i_rate, 1 );
-
     /* */
     p_dec->fmt_out.i_cat = AUDIO_ES;
-    /* Try to set as much informations as possible but do not trust it */
+    /* 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;
 }
 
@@ -306,45 +306,48 @@ aout_buffer_t * DecodeAudio ( decoder_t *p_dec, block_t **pp_block )
         return NULL;
     }
 
-    i_output = __MAX( p_block->i_buffer, p_sys->i_output_max );
-    if( i_output > p_sys->i_output_max )
+    if( (p_block->i_flags & BLOCK_FLAG_PRIVATE_REALLOCATED) == 0 )
     {
-        /* Grow output buffer if necessary (eg. for PCM data) */
-        p_sys->p_output = av_realloc( p_sys->p_output, i_output );
+        *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 );
+
+        p_block->i_flags |= BLOCK_FLAG_PRIVATE_REALLOCATED;
     }
 
-    *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 );
+    do
+    {
+        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 );
+        }
 
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 0, 0 )
-    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
+        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( i_used < 0 || i_output < 0 )
-    {
-        if( i_used < 0 )
-            msg_Warn( p_dec, "cannot decode one frame (%zu bytes)",
-                      p_block->i_buffer );
+        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;
-    }
+            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;
+        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 )
@@ -400,13 +403,36 @@ void EndAudioDec( decoder_t *p_dec )
 /*****************************************************************************
  *
  *****************************************************************************/
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 2, 0 )
-#   define LIBAVCODEC_AUDIO_LAYOUT
-#else
-#   warning "Audio channel layout is unsupported by your avcodec version."
-#endif
 
-#if defined(LIBAVCODEC_AUDIO_LAYOUT)
+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 },
@@ -430,97 +456,33 @@ static const uint64_t pi_channels_map[][2] =
     { CH_STEREO_LEFT,       0 },
     { CH_STEREO_RIGHT,      0 },
 };
-#else
-static const uint64_t pi_channels_map[][2] =
-{
-    { 0, AOUT_CHAN_LEFT },
-    { 0, AOUT_CHAN_RIGHT },
-    { 0, AOUT_CHAN_CENTER },
-    { 0, AOUT_CHAN_LFE },
-    { 0, AOUT_CHAN_REARLEFT },
-    { 0, AOUT_CHAN_REARRIGHT },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, AOUT_CHAN_REARCENTER },
-    { 0, AOUT_CHAN_MIDDLELEFT },
-    { 0, AOUT_CHAN_MIDDLERIGHT },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-    { 0, 0 },
-};
-#endif
 
 static void SetupOutputFormat( decoder_t *p_dec, bool b_trust )
 {
     decoder_sys_t *p_sys = p_dec->p_sys;
 
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 51, 65, 0 )
-    switch( p_sys->p_context->sample_fmt )
-    {
-    case SAMPLE_FMT_U8:
-        p_dec->fmt_out.i_codec = VLC_CODEC_U8;
-        p_dec->fmt_out.audio.i_bitspersample = 8;
-        break;
-    case SAMPLE_FMT_S32:
-        p_dec->fmt_out.i_codec = VLC_CODEC_S32N;
-        p_dec->fmt_out.audio.i_bitspersample = 32;
-        break;
-    case SAMPLE_FMT_FLT:
-        p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
-        p_dec->fmt_out.audio.i_bitspersample = 32;
-        break;
-    case SAMPLE_FMT_DBL:
-        p_dec->fmt_out.i_codec = VLC_CODEC_FL64;
-        p_dec->fmt_out.audio.i_bitspersample = 64;
-        break;
-
-    case SAMPLE_FMT_S16:
-    default:
-        p_dec->fmt_out.i_codec = VLC_CODEC_S16N;
-        p_dec->fmt_out.audio.i_bitspersample = 16;
-        break;
-    }
-#else
-    p_dec->fmt_out.i_codec = VLC_CODEC_S16N;
-    p_dec->fmt_out.audio.i_bitspersample = 16;
-#endif
-    p_dec->fmt_out.audio.i_rate     = p_sys->p_context->sample_rate;
+    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 defined(LIBAVCODEC_AUDIO_LAYOUT)
     if( p_sys->i_previous_channels == p_sys->p_context->channels &&
         p_sys->i_previous_layout == p_sys->p_context->channel_layout )
         return;
-#else
-    if( p_sys->i_previous_channels == p_sys->p_context->channels )
-        return;
-#endif
     if( b_trust )
     {
         p_sys->i_previous_channels = p_sys->p_context->channels;
-#if defined(LIBAVCODEC_AUDIO_LAYOUT)
         p_sys->i_previous_layout = p_sys->p_context->channel_layout;
-#endif
     }
 
     /* Specified order
      * FIXME should we use fmt_in.audio.i_physical_channels or not ?
      */
-#if defined(LIBAVCODEC_AUDIO_LAYOUT)
     const unsigned i_order_max = 8 * sizeof(p_sys->p_context->channel_layout);
-#else
-    const unsigned i_order_max = 64;
-#endif
     uint32_t pi_order_src[i_order_max];
     int i_channels_src = 0;
 
-#if defined(LIBAVCODEC_AUDIO_LAYOUT)
     if( p_sys->p_context->channel_layout )
     {
         for( unsigned i = 0; i < sizeof(pi_channels_map)/sizeof(*pi_channels_map); i++ )
@@ -530,7 +492,6 @@ static void SetupOutputFormat( decoder_t *p_dec, bool b_trust )
         }
     }
     else
-#endif
     {
         /* Create default order  */
         if( b_trust )