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audioparsers: port wavpackparse to 0.11

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This commit is contained in:
Mark Nauwelaerts 2012-03-05 12:15:44 +01:00
parent 26dd999b68
commit 690884bc57
4 changed files with 106 additions and 119 deletions
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2
gst/audioparsers/Makefile.am
View file

@ -3,7 +3,7 @@ plugin_LTLIBRARIES = libgstaudioparsers.la
libgstaudioparsers_la_SOURCES = \
gstaacparse.c gstamrparse.c gstac3parse.c \
gstdcaparse.c gstflacparse.c gstmpegaudioparse.c \
plugin.c
gstwavpackparse.c plugin.c
libgstaudioparsers_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS)

214
gst/audioparsers/gstwavpackparse.c
View file

@ -42,7 +42,7 @@
#include "gstwavpackparse.h"
#include <gst/base/gstbytereader.h>
#include <gst/audio/multichannel.h>
#include <gst/audio/audio.h>
GST_DEBUG_CATEGORY_STATIC (wavpack_parse_debug);
#define GST_CAT_DEFAULT wavpack_parse_debug
@ -51,7 +51,7 @@ static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-wavpack, "
"width = (int) [ 1, 32 ], "
"depth = (int) [ 1, 32 ], "
"channels = (int) [ 1, 8 ], "
"rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE; "
"audio/x-wavpack-correction, " "framed = (boolean) TRUE")
@ -66,36 +66,19 @@ static void gst_wavpack_parse_finalize (GObject * object);
static gboolean gst_wavpack_parse_start (GstBaseParse * parse);
static gboolean gst_wavpack_parse_stop (GstBaseParse * parse);
static gboolean gst_wavpack_parse_check_valid_frame (GstBaseParse * parse,
GstBaseParseFrame * frame, guint * size, gint * skipsize);
static GstFlowReturn gst_wavpack_parse_parse_frame (GstBaseParse * parse,
GstBaseParseFrame * frame);
static GstCaps *gst_wavpack_parse_get_sink_caps (GstBaseParse * parse);
static GstFlowReturn gst_wavpack_parse_handle_frame (GstBaseParse * parse,
GstBaseParseFrame * frame, gint * skipsize);
static GstCaps *gst_wavpack_parse_get_sink_caps (GstBaseParse * parse,
GstCaps * filter);
/* FIXME remove when all properly renamed */
typedef GstWavpackParse GstWavpackParse2;
typedef GstWavpackParseClass GstWavpackParse2Class;
GST_BOILERPLATE (GstWavpackParse2, gst_wavpack_parse, GstBaseParse,
GST_TYPE_BASE_PARSE);
static void
gst_wavpack_parse_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_static_pad_template (element_class, &sink_template);
gst_element_class_add_static_pad_template (element_class, &src_template);
gst_element_class_set_details_simple (element_class,
"Wavpack audio stream parser", "Codec/Parser/Audio",
"Wavpack parser", "Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>");
}
#define gst_wavpack_parse_parent_class parent_class
G_DEFINE_TYPE (GstWavpackParse, gst_wavpack_parse, GST_TYPE_BASE_PARSE);
static void
gst_wavpack_parse_class_init (GstWavpackParseClass * klass)
{
GstBaseParseClass *parse_class = GST_BASE_PARSE_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (wavpack_parse_debug, "wavpackparse", 0,
@ -105,11 +88,19 @@ gst_wavpack_parse_class_init (GstWavpackParseClass * klass)
parse_class->start = GST_DEBUG_FUNCPTR (gst_wavpack_parse_start);
parse_class->stop = GST_DEBUG_FUNCPTR (gst_wavpack_parse_stop);
parse_class->check_valid_frame =
GST_DEBUG_FUNCPTR (gst_wavpack_parse_check_valid_frame);
parse_class->parse_frame = GST_DEBUG_FUNCPTR (gst_wavpack_parse_parse_frame);
parse_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_wavpack_parse_handle_frame);
parse_class->get_sink_caps =
GST_DEBUG_FUNCPTR (gst_wavpack_parse_get_sink_caps);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details_simple (element_class,
"Wavpack audio stream parser", "Codec/Parser/Audio",
"Wavpack parser", "Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>");
}
static void
@ -123,7 +114,7 @@ gst_wavpack_parse_reset (GstWavpackParse * wvparse)
}
static void
gst_wavpack_parse_init (GstWavpackParse * wvparse, GstWavpackParseClass * klass)
gst_wavpack_parse_init (GstWavpackParse * wvparse)
{
gst_wavpack_parse_reset (wvparse);
}
@ -209,7 +200,7 @@ static const struct
0x00001, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT}, {
0x00002, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, {
0x00004, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}, {
0x00008, GST_AUDIO_CHANNEL_POSITION_LFE}, {
0x00008, GST_AUDIO_CHANNEL_POSITION_LFE1}, {
0x00010, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT}, {
0x00020, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
0x00040, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER}, {
@ -217,37 +208,25 @@ static const struct
0x00100, GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}, {
0x00200, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT}, {
0x00400, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT}, {
0x00800, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_CENTER */
{
0x01000, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_FRONT_LEFT */
{
0x02000, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_FRONT_CENTER */
{
0x04000, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_FRONT_RIGHT */
{
0x08000, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_BACK_LEFT */
{
0x10000, GST_AUDIO_CHANNEL_POSITION_INVALID}, /* TOP_BACK_CENTER */
{
0x20000, GST_AUDIO_CHANNEL_POSITION_INVALID} /* TOP_BACK_RIGHT */
0x00800, GST_AUDIO_CHANNEL_POSITION_TOP_CENTER}, {
0x01000, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT}, {
0x02000, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER}, {
0x04000, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT}, {
0x08000, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT}, {
0x10000, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER}, {
0x20000, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT}
};
#define MAX_CHANNEL_POSITIONS G_N_ELEMENTS (layout_mapping)
static gboolean
gst_wavpack_set_channel_layout (GstCaps * caps, gint layout)
gst_wavpack_get_channel_positions (gint num_channels, gint layout,
GstAudioChannelPosition * pos)
{
GstAudioChannelPosition pos[MAX_CHANNEL_POSITIONS];
GstStructure *s;
gint num_channels, i, p;
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &num_channels))
g_return_val_if_reached (FALSE);
gint i, p;
if (num_channels == 1 && layout == 0x00004) {
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO;
gst_audio_set_channel_positions (s, pos);
pos[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
return TRUE;
}
@ -276,7 +255,6 @@ gst_wavpack_set_channel_layout (GstCaps * caps, gint layout)
return FALSE;
}
gst_audio_set_channel_positions (s, pos);
return TRUE;
}
@ -297,12 +275,15 @@ gst_wavpack_parse_frame_metadata (GstWavpackParse * parse, GstBuffer * buf,
{
GstByteReader br;
gint i;
GstMapInfo map;
g_return_val_if_fail (wph != NULL || wpi != NULL, FALSE);
g_return_val_if_fail (GST_BUFFER_SIZE (buf) >= skip + sizeof (WavpackHeader),
FALSE);
g_return_val_if_fail (gst_buffer_get_size (buf) >=
skip + sizeof (WavpackHeader), FALSE);
gst_byte_reader_init (&br, GST_BUFFER_DATA (buf) + skip, wph->ckSize + 8);
gst_buffer_map (buf, &map, GST_MAP_READ);
gst_byte_reader_init (&br, map.data + skip, wph->ckSize + 8);
/* skip past header */
gst_byte_reader_skip_unchecked (&br, sizeof (WavpackHeader));
@ -382,11 +363,14 @@ gst_wavpack_parse_frame_metadata (GstWavpackParse * parse, GstBuffer * buf,
}
}
gst_buffer_unmap (buf, &map);
return TRUE;
/* ERRORS */
read_failed:
{
gst_buffer_unmap (buf, &map);
GST_DEBUG_OBJECT (parse, "short read while parsing metadata");
/* let's look the other way anyway */
return TRUE;
@ -398,11 +382,15 @@ static gboolean
gst_wavpack_parse_frame_header (GstWavpackParse * parse, GstBuffer * buf,
gint skip, WavpackHeader * _wph)
{
GstByteReader br = GST_BYTE_READER_INIT_FROM_BUFFER (buf);
WavpackHeader wph = { {0,}, 0, };
GstByteReader br;
WavpackHeader wph;
GstMapInfo map;
g_return_val_if_fail (GST_BUFFER_SIZE (buf) >= skip + sizeof (WavpackHeader),
FALSE);
g_return_val_if_fail (gst_buffer_get_size (buf) >=
skip + sizeof (WavpackHeader), FALSE);
gst_buffer_map (buf, &map, GST_MAP_READ);
gst_byte_reader_init (&br, map.data, map.size);
/* marker */
gst_byte_reader_skip_unchecked (&br, skip + 4);
@ -436,34 +424,41 @@ gst_wavpack_parse_frame_header (GstWavpackParse * parse, GstBuffer * buf,
if (_wph)
*_wph = wph;
gst_buffer_unmap (buf, &map);
return TRUE;
}
static gboolean
gst_wavpack_parse_check_valid_frame (GstBaseParse * parse,
GstBaseParseFrame * frame, guint * framesize, gint * skipsize)
static GstFlowReturn
gst_wavpack_parse_handle_frame (GstBaseParse * parse,
GstBaseParseFrame * frame, gint * skipsize)
{
GstWavpackParse *wvparse = GST_WAVPACK_PARSE (parse);
GstBuffer *buf = frame->buffer;
GstByteReader reader = GST_BYTE_READER_INIT_FROM_BUFFER (buf);
GstByteReader reader;
gint off;
guint rate, chans, width, mask;
gboolean lost_sync, draining, final;
guint frmsize = 0;
WavpackHeader wph;
WavpackInfo wpi = { 0, };
GstMapInfo map;
if (G_UNLIKELY (GST_BUFFER_SIZE (buf) < sizeof (WavpackHeader)))
if (G_UNLIKELY (gst_buffer_get_size (buf) < sizeof (WavpackHeader)))
return FALSE;
gst_buffer_map (buf, &map, GST_MAP_READ);
gst_byte_reader_init (&reader, map.data, map.size);
/* scan for 'wvpk' marker */
off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffffffff, 0x7776706b,
0, GST_BUFFER_SIZE (buf));
0, map.size);
GST_LOG_OBJECT (parse, "possible sync at buffer offset %d", off);
/* didn't find anything that looks like a sync word, skip */
if (off < 0) {
*skipsize = GST_BUFFER_SIZE (buf) - 3;
*skipsize = map.size - 3;
goto skip;
}
@ -530,71 +525,50 @@ gst_wavpack_parse_check_valid_frame (GstBaseParse * parse,
lost_sync = FALSE;
}
/* found frame (up to final), record gathered metadata */
wvparse->wpi = wpi;
wvparse->wph = wph;
*framesize = frmsize;
gst_base_parse_set_min_frame_size (parse, sizeof (WavpackHeader));
return TRUE;
skip:
GST_LOG_OBJECT (wvparse, "skipping %d", *skipsize);
return FALSE;
more:
GST_LOG_OBJECT (wvparse, "need at least %u", frmsize);
gst_base_parse_set_min_frame_size (parse, frmsize);
*skipsize = 0;
return FALSE;
}
static GstFlowReturn
gst_wavpack_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
{
GstWavpackParse *wvparse = GST_WAVPACK_PARSE (parse);
GstBuffer *buf = frame->buffer;
guint rate, chans, width, mask;
/* re-use previously parsed data */
rate = wvparse->wpi.rate;
width = wvparse->wpi.width;
chans = wvparse->wpi.channels;
mask = wvparse->wpi.channel_mask;
rate = wpi.rate;
width = wpi.width;
chans = wpi.channels;
mask = wpi.channel_mask;
GST_LOG_OBJECT (parse, "rate: %u, width: %u, chans: %u", rate, width, chans);
GST_BUFFER_TIMESTAMP (buf) =
gst_util_uint64_scale_int (wvparse->wph.block_index, GST_SECOND, rate);
gst_util_uint64_scale_int (wph.block_index, GST_SECOND, rate);
GST_BUFFER_DURATION (buf) =
gst_util_uint64_scale_int (wvparse->wph.block_index +
wvparse->wph.block_samples, GST_SECOND, rate) -
GST_BUFFER_TIMESTAMP (buf);
gst_util_uint64_scale_int (wph.block_index + wph.block_samples,
GST_SECOND, rate) - GST_BUFFER_TIMESTAMP (buf);
if (G_UNLIKELY (wvparse->sample_rate != rate || wvparse->channels != chans
|| wvparse->width != width || wvparse->channel_mask != mask)) {
GstCaps *caps;
if (wvparse->wpi.correction) {
if (wpi.correction) {
caps = gst_caps_new_simple ("audio/x-wavpack-correction",
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
} else {
caps = gst_caps_new_simple ("audio/x-wavpack",
"channels", G_TYPE_INT, chans,
"rate", G_TYPE_INT, rate,
"width", G_TYPE_INT, width, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
"depth", G_TYPE_INT, width, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
if (!mask)
mask = gst_wavpack_get_default_channel_mask (wvparse->channels);
if (mask != 0) {
if (!gst_wavpack_set_channel_layout (caps, mask)) {
GST_WARNING_OBJECT (wvparse, "Failed to set channel layout");
GstAudioChannelPosition pos[64] =
{ GST_AUDIO_CHANNEL_POSITION_INVALID, };
guint64 gmask;
if (!gst_wavpack_get_channel_positions (chans, mask, pos)) {
GST_WARNING_OBJECT (wvparse, "Failed to determine channel layout");
} else {
gst_audio_channel_positions_to_mask (pos, chans, &gmask);
if (gmask)
gst_caps_set_simple (caps,
"channel-mask", GST_TYPE_BITMASK, gmask, NULL);
}
}
}
gst_buffer_set_caps (buf, caps);
gst_pad_set_caps (GST_BASE_PARSE_SRC_PAD (parse), caps);
gst_caps_unref (caps);
@ -611,15 +585,33 @@ gst_wavpack_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
}
}
/* return to normal size */
gst_base_parse_set_min_frame_size (parse, sizeof (WavpackHeader));
gst_buffer_unmap (buf, &map);
return gst_base_parse_finish_frame (parse, frame, frmsize);
skip:
gst_buffer_unmap (buf, &map);
GST_LOG_OBJECT (wvparse, "skipping %d", *skipsize);
return GST_FLOW_OK;
more:
gst_buffer_unmap (buf, &map);
GST_LOG_OBJECT (wvparse, "need at least %u", frmsize);
gst_base_parse_set_min_frame_size (parse, frmsize);
*skipsize = 0;
return GST_FLOW_OK;
}
static GstCaps *
gst_wavpack_parse_get_sink_caps (GstBaseParse * parse)
gst_wavpack_parse_get_sink_caps (GstBaseParse * parse, GstCaps * filter)
{
GstCaps *peercaps;
GstCaps *res;
/* FIXME: handle filter caps */
peercaps = gst_pad_get_allowed_caps (GST_BASE_PARSE_SRC_PAD (parse));
if (peercaps) {
guint i, n;

3
gst/audioparsers/gstwavpackparse.h
View file

@ -112,9 +112,6 @@ struct _GstWavpackParse {
gint channel_mask;
guint total_samples;
WavpackHeader wph;
WavpackInfo wpi;
};
/**

6
gst/audioparsers/plugin.c
View file

@ -46,10 +46,8 @@ plugin_init (GstPlugin * plugin)
GST_RANK_PRIMARY + 1, GST_TYPE_FLAC_PARSE);
ret &= gst_element_register (plugin, "mpegaudioparse",
GST_RANK_PRIMARY + 2, GST_TYPE_MPEG_AUDIO_PARSE);
#if 0
ret &= gst_element_register (plugin, "wavpackparse2",
GST_RANK_SECONDARY, GST_TYPE_WAVPACK_PARSE);
#endif
ret &= gst_element_register (plugin, "wavpackparse",
GST_RANK_PRIMARY + 1, GST_TYPE_WAVPACK_PARSE);
return ret;
}