mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 02:01:12 +00:00
fdkaacdec: Support arbitrary channel configs
Try to match the config to GStreamer positions. If something doesn't fit, fall back to a set of unpositioned channels. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1561>
This commit is contained in:
Jan Alexander Steffens (heftig)
GStreamer Marge Bot
parent
d4b4ffc944
commit
e10bd02e1d
2 changed files with 302 additions and 6 deletions
|
|
@ -179,15 +179,305 @@ gst_fdkaacdec_set_format (GstAudioDecoder * dec, GstCaps * caps)
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
/* 8 channels * 2 bytes per sample * 2048 samples */
|
||||
/* 64 channels * 2048 samples * 2 bytes per sample */
|
||||
if (!self->decode_buffer) {
|
||||
self->decode_buffer_size = 8 * 2048;
|
||||
self->decode_buffer_size = 64 * 2048;
|
||||
self->decode_buffer = g_new (gint16, self->decode_buffer_size);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_fdkaacdec_map_channels (GstFdkAacDec * self, const CStreamInfo * in,
|
||||
gboolean * updated)
|
||||
{
|
||||
GstAudioChannelPosition *positions = self->positions;
|
||||
AUDIO_CHANNEL_TYPE *channel_types = in->pChannelType;
|
||||
UCHAR *channel_indices = in->pChannelIndices;
|
||||
INT i, channels = in->numChannels;
|
||||
guint64 mask_mapped = 0;
|
||||
|
||||
#define DEF_CHANSET(name, max) \
|
||||
GstAudioChannelPosition *set_ ## name[max] = {NULL}; \
|
||||
guint n_ ## name = 0, mapped_ ## name = 0
|
||||
|
||||
#define PUSH_CHAN(name, index, pos_index) G_STMT_START { \
|
||||
if ((index) >= G_N_ELEMENTS (set_ ## name)) { \
|
||||
GST_WARNING_OBJECT (self, "Too many %s channels (%d)", \
|
||||
#name, (gint) (index)); \
|
||||
goto error; \
|
||||
} else if (set_ ## name[index] != NULL) { \
|
||||
GST_WARNING_OBJECT (self, "Channel %s[%d] already mapped", \
|
||||
#name, (gint) (index)); \
|
||||
goto error; \
|
||||
} else { \
|
||||
GST_DEBUG_OBJECT (self, "Mapping channel %s[%d] to %d", \
|
||||
#name, (gint) (index), (gint) pos_index); \
|
||||
set_ ## name[index] = &positions[pos_index]; \
|
||||
n_ ## name = MAX (n_ ## name, (index) + 1); \
|
||||
} \
|
||||
} G_STMT_END
|
||||
|
||||
#define SHIFT_CHAN(name, pos) G_STMT_START { \
|
||||
if (mask_mapped & GST_AUDIO_CHANNEL_POSITION_MASK (pos)) { \
|
||||
GST_WARNING_OBJECT (self, "Position %s already mapped", #pos); \
|
||||
goto error; \
|
||||
} else if (set_ ## name[mapped_ ## name] == NULL) { \
|
||||
GST_WARNING_OBJECT (self, "Channel %s[%u] is a hole", \
|
||||
#name, mapped_ ## name); \
|
||||
goto error; \
|
||||
} else { \
|
||||
GST_DEBUG_OBJECT (self, "Mapping channel %s[%u] to %s", \
|
||||
#name, mapped_ ## name, #pos); \
|
||||
*set_ ## name[mapped_ ## name ++] = GST_AUDIO_CHANNEL_POSITION_ ## pos; \
|
||||
mask_mapped |= GST_AUDIO_CHANNEL_POSITION_MASK (pos); \
|
||||
} \
|
||||
} G_STMT_END
|
||||
|
||||
DEF_CHANSET (front, 7);
|
||||
DEF_CHANSET (side, 2);
|
||||
DEF_CHANSET (rear, 3);
|
||||
DEF_CHANSET (lfe, 2);
|
||||
DEF_CHANSET (top_front, 3);
|
||||
DEF_CHANSET (top_center, 3);
|
||||
DEF_CHANSET (top_rear, 3);
|
||||
DEF_CHANSET (bottom_front, 3);
|
||||
|
||||
if (self->channels == channels &&
|
||||
memcmp (self->channel_types, channel_types,
|
||||
channels * sizeof *channel_types) == 0 &&
|
||||
memcmp (self->channel_indices, channel_indices,
|
||||
channels * sizeof *channel_indices) == 0) {
|
||||
GST_TRACE_OBJECT (self, "Reusing cached positions for %d channels",
|
||||
channels);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
self->channels = channels;
|
||||
memcpy (self->channel_types, channel_types, channels * sizeof *channel_types);
|
||||
memcpy (self->channel_indices, channel_indices,
|
||||
channels * sizeof *channel_indices);
|
||||
*updated = TRUE;
|
||||
|
||||
for (i = 0; i < channels; i++) {
|
||||
guint8 type = in->pChannelType[i];
|
||||
guint8 index = in->pChannelIndices[i];
|
||||
|
||||
switch (type) {
|
||||
case ACT_FRONT:
|
||||
PUSH_CHAN (front, index, i);
|
||||
break;
|
||||
case ACT_SIDE:
|
||||
PUSH_CHAN (side, index, i);
|
||||
break;
|
||||
case ACT_BACK:
|
||||
PUSH_CHAN (rear, index, i);
|
||||
break;
|
||||
case ACT_LFE:
|
||||
PUSH_CHAN (lfe, index, i);
|
||||
break;
|
||||
case ACT_FRONT_TOP:
|
||||
PUSH_CHAN (top_front, index, i);
|
||||
break;
|
||||
case ACT_SIDE_TOP:
|
||||
PUSH_CHAN (top_center, index, i);
|
||||
break;
|
||||
case ACT_BACK_TOP:
|
||||
PUSH_CHAN (top_rear, index, i);
|
||||
break;
|
||||
#ifdef HAVE_FDK_AAC_0_1_4
|
||||
case ACT_FRONT_BOTTOM:
|
||||
PUSH_CHAN (bottom_front, index, i);
|
||||
break;
|
||||
#endif
|
||||
case ACT_NONE:
|
||||
GST_INFO_OBJECT (self, "Channel %d is unpositioned", i);
|
||||
goto error;
|
||||
default:
|
||||
GST_ERROR_OBJECT (self, "Channel %d has unknown type %d", i, type);
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
|
||||
/* Outwards from the front center, following ISO/IEC 13818-7 8.5.2.2
|
||||
* "Explicit channel mapping using a program_config_element()" */
|
||||
switch (n_front) {
|
||||
case 7:
|
||||
SHIFT_CHAN (front, FRONT_CENTER);
|
||||
case 6:
|
||||
SHIFT_CHAN (front, FRONT_LEFT_OF_CENTER);
|
||||
SHIFT_CHAN (front, FRONT_RIGHT_OF_CENTER);
|
||||
SHIFT_CHAN (front, FRONT_LEFT);
|
||||
SHIFT_CHAN (front, FRONT_RIGHT);
|
||||
SHIFT_CHAN (front, WIDE_LEFT);
|
||||
SHIFT_CHAN (front, WIDE_RIGHT);
|
||||
break;
|
||||
|
||||
case 5:
|
||||
SHIFT_CHAN (front, FRONT_CENTER);
|
||||
case 4:
|
||||
SHIFT_CHAN (front, FRONT_LEFT_OF_CENTER);
|
||||
SHIFT_CHAN (front, FRONT_RIGHT_OF_CENTER);
|
||||
SHIFT_CHAN (front, WIDE_LEFT);
|
||||
SHIFT_CHAN (front, WIDE_RIGHT);
|
||||
break;
|
||||
|
||||
case 3:
|
||||
SHIFT_CHAN (front, FRONT_CENTER);
|
||||
case 2:
|
||||
SHIFT_CHAN (front, FRONT_LEFT);
|
||||
SHIFT_CHAN (front, FRONT_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (front, FRONT_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Front to rear */
|
||||
switch (n_side) {
|
||||
case 2:
|
||||
SHIFT_CHAN (side, SIDE_LEFT);
|
||||
SHIFT_CHAN (side, SIDE_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
GST_ERROR_OBJECT (self, "Single side channel not supported");
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Inwards to the rear center */
|
||||
switch (n_rear) {
|
||||
case 5:
|
||||
SHIFT_CHAN (rear, SURROUND_LEFT);
|
||||
SHIFT_CHAN (rear, SURROUND_RIGHT);
|
||||
SHIFT_CHAN (rear, REAR_LEFT);
|
||||
SHIFT_CHAN (rear, REAR_RIGHT);
|
||||
SHIFT_CHAN (rear, REAR_CENTER);
|
||||
break;
|
||||
|
||||
case 4:
|
||||
SHIFT_CHAN (rear, SURROUND_LEFT);
|
||||
SHIFT_CHAN (rear, SURROUND_RIGHT);
|
||||
SHIFT_CHAN (rear, REAR_LEFT);
|
||||
SHIFT_CHAN (rear, REAR_RIGHT);
|
||||
break;
|
||||
|
||||
case 3:
|
||||
SHIFT_CHAN (rear, SURROUND_LEFT);
|
||||
SHIFT_CHAN (rear, SURROUND_RIGHT);
|
||||
SHIFT_CHAN (rear, REAR_CENTER);
|
||||
break;
|
||||
|
||||
case 2:
|
||||
SHIFT_CHAN (rear, SURROUND_LEFT);
|
||||
SHIFT_CHAN (rear, SURROUND_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (rear, REAR_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (n_lfe) {
|
||||
case 2:
|
||||
SHIFT_CHAN (lfe, LFE1);
|
||||
SHIFT_CHAN (lfe, LFE2);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (lfe, LFE1);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (n_top_front) {
|
||||
case 3:
|
||||
SHIFT_CHAN (top_front, TOP_FRONT_CENTER);
|
||||
case 2:
|
||||
SHIFT_CHAN (top_front, TOP_FRONT_LEFT);
|
||||
SHIFT_CHAN (top_front, TOP_FRONT_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (top_front, TOP_FRONT_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (n_top_center) {
|
||||
case 3:
|
||||
SHIFT_CHAN (top_center, TOP_CENTER);
|
||||
case 2:
|
||||
SHIFT_CHAN (top_center, TOP_SIDE_LEFT);
|
||||
SHIFT_CHAN (top_center, TOP_SIDE_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (top_center, TOP_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (n_top_rear) {
|
||||
case 3:
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_LEFT);
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_RIGHT);
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_CENTER);
|
||||
break;
|
||||
|
||||
case 2:
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_LEFT);
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (top_rear, TOP_REAR_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (n_bottom_front) {
|
||||
case 3:
|
||||
SHIFT_CHAN (bottom_front, BOTTOM_FRONT_CENTER);
|
||||
case 2:
|
||||
SHIFT_CHAN (bottom_front, BOTTOM_FRONT_LEFT);
|
||||
SHIFT_CHAN (bottom_front, BOTTOM_FRONT_RIGHT);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
SHIFT_CHAN (bottom_front, BOTTOM_FRONT_CENTER);
|
||||
break;
|
||||
}
|
||||
|
||||
if (mask_mapped != 0) {
|
||||
GST_INFO_OBJECT (self, "Mapped %d front, %d side, %d rear, %d lfe,"
|
||||
" %d top front, %d top center, %d top rear, %d bottom front channels",
|
||||
mapped_front, mapped_side, mapped_rear, mapped_lfe, mapped_top_front,
|
||||
mapped_top_center, mapped_top_rear, mapped_bottom_front);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
if (channels == 1) {
|
||||
GST_INFO_OBJECT (self, "Mapped a mono channel");
|
||||
positions[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
error:
|
||||
if (channels > 0) {
|
||||
GST_WARNING_OBJECT (self, "Mapped %d channels, without positions",
|
||||
channels);
|
||||
for (i = 0; i < channels; i++)
|
||||
positions[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GST_ERROR_OBJECT (self, "No channels to map");
|
||||
return FALSE;
|
||||
|
||||
#undef DEF_CHANSET
|
||||
#undef PUSH_CHAN
|
||||
#undef SHIFT_CHAN
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_fdkaacdec_map_channel_config (GstFdkAacDec * self, const CStreamInfo * in,
|
||||
gboolean * updated)
|
||||
|
|
@ -196,6 +486,10 @@ gst_fdkaacdec_map_channel_config (GstFdkAacDec * self, const CStreamInfo * in,
|
|||
CHANNEL_MODE config = in->channelConfig;
|
||||
INT channels = in->numChannels;
|
||||
|
||||
if (config == 0) {
|
||||
return gst_fdkaacdec_map_channels (self, in, updated);
|
||||
}
|
||||
|
||||
if (self->config == config && self->channels == channels) {
|
||||
GST_TRACE_OBJECT (self,
|
||||
"Reusing cached positions for channelConfig %d (%d channels)",
|
||||
|
|
@ -213,9 +507,9 @@ gst_fdkaacdec_map_channel_config (GstFdkAacDec * self, const CStreamInfo * in,
|
|||
}
|
||||
|
||||
if (!layout->channels) {
|
||||
GST_ERROR_OBJECT (self, "Unknown channelConfig %d (%d channels)",
|
||||
GST_WARNING_OBJECT (self, "Unknown channelConfig %d (%d channels)",
|
||||
config, channels);
|
||||
return FALSE;
|
||||
return gst_fdkaacdec_map_channels (self, in, updated);
|
||||
}
|
||||
|
||||
GST_INFO_OBJECT (self, "Known channelConfig %d (%d channels)",
|
||||
|
|
@ -229,7 +523,7 @@ gst_fdkaacdec_map_channel_config (GstFdkAacDec * self, const CStreamInfo * in,
|
|||
static gboolean
|
||||
gst_fdkaacdec_update_info (GstFdkAacDec * self)
|
||||
{
|
||||
GstAudioChannelPosition positions[8];
|
||||
GstAudioChannelPosition positions[64];
|
||||
GstAudioInfo *info = &self->info;
|
||||
gint channels = self->channels;
|
||||
|
||||
|
|
|
|||
|
|
@ -51,7 +51,9 @@ struct _GstFdkAacDec {
|
|||
INT sample_rate;
|
||||
CHANNEL_MODE config;
|
||||
INT channels;
|
||||
GstAudioChannelPosition positions[8];
|
||||
AUDIO_CHANNEL_TYPE channel_types[64];
|
||||
UCHAR channel_indices[64];
|
||||
GstAudioChannelPosition positions[64];
|
||||
|
||||
gboolean need_reorder;
|
||||
GstAudioInfo info;
|
||||
|
|
|
|||
Loading…
Reference in a new issue