mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-24 02:31:03 +00:00
Code Issues 1 Projects Releases Wiki Activity

Wavpack ported to 0.9. No support for correction file yet.

Browse source 
Original commit message from CVS:
Wavpack ported to 0.9. No support for correction file yet.
This commit is contained in:
Edgard Lima 2005-11-25 19:58:19 +00:00
parent 4fbab01946
commit 7b85852951
5 changed files with 391 additions and 237 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
ext/wavpack/Makefile.am
View file

@ -1,10 +1,10 @@
plugin_LTLIBRARIES = libgstwavpack.la
libgstwavpack_la_SOURCES = gstwavpack.c \
gstwavpackcommon.c \
gstwavpackparse.c \
gstwavpackdec.c
libgstwavpack_la_SOURCES = gstwavpack.c \
gstwavpackcommon.c \
gstwavpackparse.c \
gstwavpackdec.c
libgstwavpack_la_CFLAGS = $(GST_CFLAGS) $(WAVPACK_CFLAGS)
libgstwavpack_la_LIBADD = $(WAVPACK_LIBS)

138
ext/wavpack/gstwavpackdec.c
View file

@ -76,20 +76,20 @@ static void gst_wavpack_dec_class_init (GstWavpackDecClass * klass);
static void gst_wavpack_dec_base_init (GstWavpackDecClass * klass);
static void gst_wavpack_dec_init (GstWavpackDec * wavpackdec);
static void gst_wavpack_dec_loop (GstElement * element);
static GstFlowReturn gst_wavpack_dec_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent = NULL;
static GstPadLinkReturn
gst_wavpack_dec_link (GstPad * pad, const GstCaps * caps)
gst_wavpack_dec_link (GstPad * pad, GstPad * peer)
{
GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (gst_pad_get_parent (pad));
GstStructure *structure = gst_caps_get_structure (caps, 0);
GstStructure *structure = gst_caps_get_structure (GST_PAD_CAPS (peer), 0);
GstCaps *srccaps;
gint bits;
if (!gst_caps_is_fixed (caps))
return GST_PAD_LINK_DELAYED;
if (!gst_caps_is_fixed (GST_PAD_CAPS (peer)))
return GST_PAD_LINK_REFUSED;
gst_structure_get_int (structure, "rate",
(gint32 *) & wavpackdec->samplerate);
@ -114,24 +114,22 @@ gst_wavpack_dec_link (GstPad * pad, const GstCaps * caps)
"endianness", G_TYPE_INT, LITTLE_ENDIAN,
"buffer-frames", G_TYPE_INT, 0, NULL);
}
gst_pad_set_caps (wavpackdec->srcpad, srccaps);
gst_pad_use_fixed_caps (wavpackdec->srcpad);
gst_pad_set_explicit_caps (wavpackdec->srcpad, srccaps);
// blocks are usually 0.5 seconds long, assume that's always the case for now
wavpackdec->decodebuf =
(int32_t *) g_malloc ((wavpackdec->samplerate / 2) *
wavpackdec->channels * sizeof (int32_t));
return GST_PAD_LINK_OK;
}
#if 0
static GstPadLinkReturn
gst_wavpack_dec_wvclink (GstPad * pad, const GstCaps * caps)
gst_wavpack_dec_wvclink (GstPad * pad, GstPad * peer)
{
if (!gst_caps_is_fixed (caps))
return GST_PAD_LINK_DELAYED;
if (!gst_caps_is_fixed (GST_PAD_CAPS (peer)))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
#endif
GType
gst_wavpack_dec_get_type (void)
@ -201,10 +199,9 @@ gst_wavpack_dec_class_init (GstWavpackDecClass * klass)
}
static gboolean
gst_wavpack_dec_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value)
gst_wavpack_dec_src_query (GstPad * pad, GstQuery * query)
{
return gst_pad_query_default (pad, type, format, value);
return gst_pad_query_default (pad, query);
}
static void
@ -215,27 +212,31 @@ gst_wavpack_dec_init (GstWavpackDec * wavpackdec)
wavpackdec->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->sinkpad);
gst_pad_set_chain_function (wavpackdec->sinkpad, gst_wavpack_dec_chain);
gst_pad_set_link_function (wavpackdec->sinkpad, gst_wavpack_dec_link);
#if 0
wavpackdec->wvcsinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"wvcsink"), "wvcsink");
gst_pad_set_link_function (wavpackdec->wvcsinkpad, gst_wavpack_dec_wvclink);
gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->wvcsinkpad);
#endif
wavpackdec->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"src"), "src");
gst_pad_use_explicit_caps (wavpackdec->srcpad);
gst_pad_use_fixed_caps (wavpackdec->srcpad);
gst_pad_set_query_function (wavpackdec->srcpad, gst_wavpack_dec_src_query);
gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->sinkpad);
gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->srcpad);
gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->wvcsinkpad);
gst_element_set_loop_function (GST_ELEMENT (wavpackdec),
gst_wavpack_dec_loop);
wavpackdec->decodebuf = NULL;
wavpackdec->decodebuf_size = 0;
wavpackdec->stream = (WavpackStream *) g_malloc0 (sizeof (WavpackStream));
wavpackdec->context = (WavpackContext *) g_malloc0 (sizeof (WavpackContext));
}
@ -246,6 +247,7 @@ gst_wavpack_dec_setup_context (GstWavpackDec * wavpackdec, guchar * data,
{
WavpackContext *context = wavpackdec->context;
WavpackStream *stream = wavpackdec->stream;
guint buffer_size;
memset (context, 0, sizeof (context));
@ -267,6 +269,14 @@ gst_wavpack_dec_setup_context (GstWavpackDec * wavpackdec, guchar * data,
context->wvc_flag = FALSE;
}
buffer_size =
stream->wphdr.block_samples * wavpackdec->channels * sizeof (int32_t);
if (wavpackdec->decodebuf_size < buffer_size) {
wavpackdec->decodebuf =
(int32_t *) g_realloc (wavpackdec->decodebuf, buffer_size);
wavpackdec->decodebuf_size = buffer_size;
}
unpack_init (context);
}
@ -317,71 +327,25 @@ gst_wavpack_dec_format_samples (GstWavpackDec * wavpackdec, int32_t * samples,
return buf;
}
static void
gst_wavpack_dec_loop (GstElement * element)
static GstFlowReturn
gst_wavpack_dec_chain (GstPad * pad, GstBuffer * buf)
{
GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (element);
GstData *data, *cdata = NULL;
GstBuffer *buf, *outbuf, *cbuf = NULL;
gboolean got_event = FALSE;
if (!gst_pad_is_linked (wavpackdec->sinkpad)) {
return;
}
/*
if (!gst_pad_is_linked (wavpackdec->wvcsinkpad)) {
return;
}
*/
data = gst_pad_pull (wavpackdec->sinkpad);
if (GST_IS_EVENT (data)) {
GstEvent *event = GST_EVENT (data);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
gst_event_unref (event);
gst_pad_push (wavpackdec->srcpad,
GST_DATA (gst_event_new (GST_EVENT_EOS)));
gst_element_set_eos (element);
break;
default:
gst_pad_event_default (wavpackdec->srcpad, event);
break;
}
got_event = TRUE;
}
GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (gst_pad_get_parent (pad));
GstBuffer *outbuf, *cbuf = NULL;
GstFlowReturn ret = GST_FLOW_OK;
#if 0
if (gst_pad_is_linked (wavpackdec->wvcsinkpad)) {
cdata = gst_pad_pull (wavpackdec->wvcsinkpad);
if (GST_IS_EVENT (cdata)) {
GstEvent *event = GST_EVENT (cdata);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
gst_event_unref (event);
gst_pad_push (wavpackdec->srcpad,
GST_DATA (gst_event_new (GST_EVENT_EOS)));
gst_element_set_eos (element);
break;
default:
gst_pad_event_default (wavpackdec->srcpad, event);
break;
}
got_event = TRUE;
if (GST_FLOW_OK != gst_pad_pull_range (wavpackdec->wvcsinkpad,
wavpackdec->wvcflushed_bytes, -1, &cbuf)) {
cbuf = NULL;
} else {
cbuf = GST_BUFFER (cdata);
wavpackdec->wvcflushed_bytes += GST_BUFFER_SIZE (cbuf);
}
}
if (got_event)
return;
buf = GST_BUFFER (data);
#endif
gst_wavpack_dec_setup_context (wavpackdec, GST_BUFFER_DATA (buf),
cbuf ? GST_BUFFER_DATA (cbuf) : NULL);
@ -393,9 +357,19 @@ gst_wavpack_dec_loop (GstElement * element)
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
gst_buffer_unref (buf);
gst_pad_push (wavpackdec->srcpad, GST_DATA (outbuf));
gst_buffer_unref (buf);
if (cbuf) {
gst_buffer_unref (cbuf);
}
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (wavpackdec->srcpad));
if (GST_FLOW_OK != (ret = gst_pad_push (wavpackdec->srcpad, outbuf))) {
gst_buffer_unref (outbuf);
}
return ret;
}
gboolean

7
ext/wavpack/gstwavpackdec.h
View file

@ -48,11 +48,14 @@ struct _GstWavpackDec
GstElement element;
GstPad *sinkpad, *srcpad;
#if 0
GstPad *wvcsinkpad;
#endif
WavpackContext *context;
int32_t *decodebuf;
guint decodebuf_size;
WavpackStream *stream;
@ -61,6 +64,10 @@ struct _GstWavpackDec
guint width;
long frame_length;
guint64 wvcflushed_bytes;
guint64 duration;
guint64 wvcduration;
guchar *decdata;
long *cache;
};

468
ext/wavpack/gstwavpackparse.c
View file

@ -69,10 +69,15 @@ static void gst_wavpack_parse_class_init (GstWavpackParseClass * klass);
static void gst_wavpack_parse_base_init (GstWavpackParseClass * klass);
static void gst_wavpack_parse_init (GstWavpackParse * wavpackparse);
static void gst_wavpack_parse_handle_event (GstElement * element);
static gboolean gst_wavepack_parse_sink_activate (GstPad * sinkpad);
static gboolean
gst_wavepack_parse_sink_activate_pull (GstPad * sinkpad, gboolean active);
static gboolean gst_wavpack_parse_sink_event (GstPad * pad, GstEvent * event);
static void gst_wavpack_parse_loop (GstElement * element);
static GstElementStateReturn gst_wavpack_parse_change_state (GstElement *
element);
static GstStateChangeReturn gst_wavpack_parse_change_state (GstElement *
element, GstStateChange transition);
static GstElementClass *parent = NULL;
@ -141,61 +146,97 @@ gst_wavpack_parse_class_init (GstWavpackParseClass * klass)
}
static gboolean
gst_wavpack_parse_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value)
gst_wavpack_parse_src_query (GstPad * pad, GstQuery * query)
{
GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (gst_pad_get_parent (pad));
GstFormat format = GST_FORMAT_DEFAULT;
gint64 value;
gboolean ret = FALSE;
if ((type == GST_QUERY_TOTAL) && (*format == GST_FORMAT_TIME)) {
if (wavpackparse->total_samples == 0) {
*value = 0;
return FALSE;
}
*value =
((gdouble) wavpackparse->total_samples /
(gdouble) wavpackparse->samplerate) * GST_SECOND;
return TRUE;
} else if ((type == GST_QUERY_POSITION) && (*format == GST_FORMAT_TIME)) {
*value = wavpackparse->timestamp;
return TRUE;
} else {
return gst_pad_query_default (pad, type, format, value);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, &value);
if (format == GST_FORMAT_TIME) {
value = wavpackparse->timestamp;
gst_query_set_duration (query, format, value);
g_object_unref (wavpackparse);
ret = TRUE;
break;
}
break;
case GST_QUERY_DURATION:
gst_query_parse_duration (query, &format, &value);
if (format == GST_FORMAT_TIME) {
if (wavpackparse->total_samples == 0) {
value = 0;
gst_query_set_duration (query, format, value);
g_object_unref (wavpackparse);
ret = FALSE;
break;
}
value = ((gdouble) wavpackparse->total_samples /
(gdouble) wavpackparse->samplerate) * GST_SECOND;
gst_query_set_duration (query, format, value);
g_object_unref (wavpackparse);
ret = TRUE;
break;
}
break;
default:
g_object_unref (wavpackparse);
ret = gst_pad_query_default (pad, query);
break;
}
return FALSE;
return ret;
}
static gboolean
gst_wavpack_parse_src_event (GstPad * pad, GstEvent * event)
{
GstWavpackParse *wavpackparse;
GstSeekType method;
GstSeekType type;
GstFormat format;
gboolean need_flush;
gint64 offset, dest;
GstSeekFlags flags;
gboolean ret = TRUE;
wavpackparse = GST_WAVPACK_PARSE (gst_pad_get_parent (pad));
if (GST_EVENT_TYPE (event) != GST_EVENT_SEEK) {
return gst_pad_send_event (GST_PAD_PEER (wavpackparse->sinkpad), event);
GstPad *peer;
if (!(peer = gst_pad_get_peer (wavpackparse->sinkpad))) {
ret = FALSE;
goto done;
}
ret = gst_pad_send_event (peer, event);
gst_object_unref (peer);
goto done;
}
format = GST_EVENT_SEEK_FORMAT (event);
offset = GST_EVENT_SEEK_OFFSET (event);
method = GST_EVENT_SEEK_METHOD (event);
need_flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
gst_event_parse_seek (event, NULL, &format, &flags, &type, &offset, NULL,
NULL);
gst_data_unref (GST_DATA (event));
event = NULL;
need_flush = flags & GST_SEEK_FLAG_FLUSH;
if (offset < 0 || method != GST_SEEK_METHOD_SET)
return FALSE;
if (offset < 0 || type != GST_SEEK_TYPE_SET) {
ret = FALSE;
goto done;
}
if (format == GST_FORMAT_TIME) {
dest = offset * wavpackparse->samplerate / GST_SECOND;
} else if (format == GST_FORMAT_DEFAULT) {
dest = offset;
} else {
return FALSE;
ret = FALSE;
goto done;
}
wavpackparse->need_discont = TRUE;
@ -204,50 +245,65 @@ gst_wavpack_parse_src_event (GstPad * pad, GstEvent * event)
wavpackparse->seek_pending = TRUE;
wavpackparse->seek_offset = dest;
return TRUE;
done:
gst_event_unref (event);
gst_object_unref (wavpackparse);
return ret;
}
#define BUFSIZE 4096
static guint64
find_header (GstByteStream * bs, guint64 filepos, WavpackHeader * wphdr)
find_header (GstWavpackParse * wavpackparse, guint64 filepos,
WavpackHeader * wphdr)
{
guint64 pos = filepos;
gint read = 0;
GstBuffer *buf = NULL;
gst_bytestream_seek (bs, filepos, GST_SEEK_METHOD_SET);
while (TRUE) {
guint8 *cur;
while (1) {
guint8 *data, *cur;
gint read;
read = gst_bytestream_peek_bytes (bs, &data, BUFSIZE);
while (read != BUFSIZE) {
guint remaining;
GstEvent *event = NULL;
gst_bytestream_get_status (bs, &remaining, &event);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
gst_event_unref (event);
return gst_bytestream_length (bs);
}
gst_event_unref (event);
read = gst_bytestream_peek_bytes (bs, &data, BUFSIZE);
continue;
if (GST_FLOW_OK != gst_pad_pull_range (wavpackparse->sinkpad,
wavpackparse->flushed_bytes + filepos, BUFSIZE, &buf)) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
return 0;
}
cur = data;
read = GST_BUFFER_SIZE (buf);
if (read == 0) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
gst_buffer_unref (buf);
return 0;
}
cur = GST_BUFFER_DATA (buf);
do {
if (cur[0] == 'w' && cur[1] == 'v' && cur[2] == 'p' && cur[3] == 'k') {
gst_wavpack_read_header (wphdr, cur);
return pos + (cur - data);
pos += (cur - GST_BUFFER_DATA (buf));
gst_buffer_unref (buf);
buf = NULL;
return pos;
}
cur++;
} while ((cur - data) < (BUFSIZE - sizeof (WavpackHeader)));
gst_bytestream_flush_fast (bs, BUFSIZE - sizeof (WavpackHeader));
} while ((cur - GST_BUFFER_DATA (buf)) <
(BUFSIZE - sizeof (WavpackHeader)));
wavpackparse->flushed_bytes += BUFSIZE - sizeof (WavpackHeader);
pos += BUFSIZE - sizeof (WavpackHeader);
}
/* never reached */
return gst_bytestream_length (bs);
if (buf) {
gst_buffer_unref (buf);
buf = NULL;
}
return wavpackparse->duration - wavpackparse->flushed_bytes;
}
/* find the position of sample in the input bytestream, adapted from the
@ -256,13 +312,14 @@ static guint64
find_sample (GstWavpackParse * wavpackparse, guint32 sample)
{
WavpackHeader wphdr;
guint64 file_pos1 = 0, file_pos2 = gst_bytestream_length (wavpackparse->bs);
guint64 file_pos1 = 0;
guint64 file_pos2 = wavpackparse->duration - wavpackparse->flushed_bytes;
guint64 sample_pos1 = 0, sample_pos2 = wavpackparse->total_samples;
double ratio = 0.96;
int file_skip = 0;
if (sample >= wavpackparse->total_samples) {
return gst_bytestream_length (wavpackparse->bs);
return wavpackparse->duration - wavpackparse->flushed_bytes;
}
while (1) {
@ -273,15 +330,15 @@ find_sample (GstWavpackParse * wavpackparse, guint32 sample)
bytes_per_sample /= sample_pos2 - sample_pos1;
seek_pos = file_pos1 + (file_skip ? 32 : 0);
seek_pos += (guint64) (bytes_per_sample * (sample - sample_pos1) * ratio);
seek_pos = find_header (wavpackparse->bs, seek_pos, &wphdr);
seek_pos = find_header (wavpackparse, seek_pos, &wphdr);
if (seek_pos == gst_bytestream_length (wavpackparse->bs)
if (seek_pos == wavpackparse->duration - wavpackparse->flushed_bytes
|| seek_pos >= file_pos2) {
if (ratio > 0.0) {
if ((ratio -= 0.24) < 0.0)
ratio = 0.0;
} else {
return gst_bytestream_length (wavpackparse->bs);
return wavpackparse->duration - wavpackparse->flushed_bytes;
}
} else if (wphdr.block_index > sample) {
sample_pos2 = wphdr.block_index;
@ -303,16 +360,13 @@ find_sample (GstWavpackParse * wavpackparse, guint32 sample)
static void
gst_wavpack_parse_seek (GstWavpackParse * wavpackparse)
{
guint8 *data;
GstBuffer *buf;
gint num;
guint remaining;
WavpackHeader *header = g_malloc (sizeof (WavpackHeader));
guint64 offset = find_sample (wavpackparse, wavpackparse->seek_offset);
gst_bytestream_seek (wavpackparse->bs, offset, GST_SEEK_METHOD_SET);
if (offset == gst_bytestream_length (wavpackparse->bs)) {
if (offset >= wavpackparse->duration - wavpackparse->flushed_bytes) {
/* seek failed or went beyond the end, go EOS */
wavpackparse->timestamp =
((gdouble) wavpackparse->total_samples /
@ -320,29 +374,26 @@ gst_wavpack_parse_seek (GstWavpackParse * wavpackparse)
return;
}
num =
gst_bytestream_peek_bytes (wavpackparse->bs, &data,
sizeof (WavpackHeader));
while (num != sizeof (WavpackHeader)) {
GstEvent *event = NULL;
gst_bytestream_get_status (wavpackparse->bs, &remaining, &event);
if (!event) {
return;
}
gst_event_unref (event);
num =
gst_bytestream_peek_bytes (wavpackparse->bs, &data,
sizeof (WavpackHeader));
continue;
if (GST_FLOW_OK != gst_pad_pull_range (wavpackparse->sinkpad,
wavpackparse->flushed_bytes + offset, sizeof (WavpackHeader), &buf)) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
return;
}
gst_wavpack_read_header (header, data);
num = GST_BUFFER_SIZE (buf);
if (num != sizeof (WavpackHeader)) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
return;
}
gst_wavpack_read_header (header, GST_BUFFER_DATA (buf));
gst_buffer_unref (buf);
if (wavpackparse->need_flush) {
GstEvent *flush = gst_event_new (GST_EVENT_FLUSH);
gst_pad_push (wavpackparse->srcpad, GST_DATA (flush));
wavpackparse->need_flush = FALSE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_flush_start ());
}
wavpackparse->need_discont = TRUE;
@ -356,53 +407,62 @@ gst_wavpack_parse_init (GstWavpackParse * wavpackparse)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (wavpackparse);
wavpackparse->duration = -1;
wavpackparse->flushed_bytes = -1;
wavpackparse->eos = FALSE;
wavpackparse->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_element_add_pad (GST_ELEMENT (wavpackparse), wavpackparse->sinkpad);
gst_element_set_loop_function (GST_ELEMENT (wavpackparse),
gst_wavpack_parse_loop);
gst_pad_set_event_function (wavpackparse->sinkpad,
gst_wavpack_parse_sink_event);
gst_element_add_pad (GST_ELEMENT (wavpackparse), wavpackparse->sinkpad);
gst_pad_set_activate_function (wavpackparse->sinkpad,
gst_wavepack_parse_sink_activate);
gst_pad_set_activatepull_function (wavpackparse->sinkpad,
gst_wavepack_parse_sink_activate_pull);
wavpackparse->srcpad = NULL;
GST_FLAG_SET (wavpackparse, GST_ELEMENT_EVENT_AWARE);
}
static void
gst_wavpack_parse_handle_event (GstElement * element)
static gboolean
gst_wavpack_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
GstEvent *event = NULL;
guint remaining;
GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (gst_pad_get_parent (pad));
gboolean res = TRUE;
gst_bytestream_get_status (wavpackparse->bs, &remaining, &event);
if (event) {
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
if (GST_IS_PAD (wavpackparse->srcpad)
&& gst_pad_is_active (wavpackparse->srcpad))
gst_pad_push (wavpackparse->srcpad, GST_DATA (event));
gst_element_set_eos (element);
} else if (GST_EVENT_TYPE (event) == GST_EVENT_DISCONTINUOUS) {
if (GST_IS_PAD (wavpackparse->srcpad)
&& gst_pad_is_active (wavpackparse->srcpad))
gst_pad_event_default (wavpackparse->srcpad, event);
} else {
gst_event_unref (event);
}
} else {
GST_ELEMENT_ERROR (element, STREAM, DEMUX, ("couldn't read wavpack header"),
(NULL));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
wavpackparse->eos = TRUE;
/* fall through */
default:
res = gst_pad_event_default (pad, event);
gst_object_unref (wavpackparse);
return res;
break;
}
}
static void
gst_wavpack_parse_loop (GstElement * element)
{
GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
guint8 *data;
gint num;
GstBuffer *buf;
WavpackHeader *header = g_malloc (sizeof (WavpackHeader));
GST_PAD_STREAM_LOCK (wavpackparse->sinkpad);
if (wavpackparse->eos) {
goto done;
}
if (wavpackparse->seek_pending) {
gst_wavpack_parse_seek (wavpackparse);
wavpackparse->need_discont = TRUE;
@ -410,45 +470,68 @@ gst_wavpack_parse_loop (GstElement * element)
}
if (wavpackparse->need_discont) {
if (GST_IS_PAD (wavpackparse->srcpad)
&& gst_pad_is_active (wavpackparse->srcpad))
gst_pad_push (wavpackparse->srcpad,
GST_DATA (gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME,
wavpackparse->timestamp, GST_FORMAT_UNDEFINED)));
wavpackparse->need_discont = FALSE;
if (GST_IS_PAD (wavpackparse->srcpad)) {
gst_pad_push_event (wavpackparse->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
wavpackparse->timestamp, GST_CLOCK_TIME_NONE, 0));
wavpackparse->need_discont = FALSE;
}
}
num =
gst_bytestream_peek_bytes (wavpackparse->bs, &data,
sizeof (WavpackHeader));
if (GST_FLOW_OK != gst_pad_pull_range (wavpackparse->sinkpad,
wavpackparse->flushed_bytes, sizeof (WavpackHeader), &buf)) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
goto done;
}
num = GST_BUFFER_SIZE (buf);
if (num != sizeof (WavpackHeader)) {
gst_wavpack_parse_handle_event (element);
return;
gst_buffer_unref (buf);
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
goto done;
}
gst_wavpack_read_header (header, data);
num = gst_bytestream_peek_bytes (wavpackparse->bs, &data, header->ckSize + 8);
gst_wavpack_read_header (header, GST_BUFFER_DATA (buf));
gst_buffer_unref (buf);
if (GST_FLOW_OK != gst_pad_pull_range (wavpackparse->sinkpad,
wavpackparse->flushed_bytes, header->ckSize + 8, &buf)) {
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
goto done;
}
num = GST_BUFFER_SIZE (buf);
if (num != header->ckSize + 8) {
gst_wavpack_parse_handle_event (element);
return;
gst_buffer_unref (buf);
wavpackparse->eos = TRUE;
gst_pad_push_event (wavpackparse->srcpad, gst_event_new_eos ());
goto done;
}
if (!GST_IS_PAD (wavpackparse->srcpad)) {
guchar *bufptr = data + sizeof (WavpackHeader);
guchar *bufptr = GST_BUFFER_DATA (buf) + sizeof (WavpackHeader);
GstCaps *caps = NULL;
WavpackMetadata meta;
while (read_metadata_buff (&meta, data, &bufptr)) {
while (read_metadata_buff (&meta, GST_BUFFER_DATA (buf), &bufptr)) {
if (meta.id == ID_WVC_BITSTREAM) {
caps = gst_caps_new_simple ("audio/x-wavpack-correction",
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
if (GST_IS_PAD (wavpackparse->srcpad)) {
gst_object_unref (wavpackparse->srcpad);
}
wavpackparse->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_GET_CLASS (wavpackparse), "wvcsrc"), "wvcsrc");
} else if (meta.id == ID_RIFF_HEADER) {
WaveHeader *wheader = g_malloc (sizeof (WaveHeader));
// skip RiffChunkHeader and ChunkHeader
/* skip RiffChunkHeader and ChunkHeader */
g_memmove (wheader, meta.data + 20, sizeof (WaveHeader));
little_endian_to_native (wheader, WaveHeaderFormat);
wavpackparse->samplerate = wheader->SampleRate;
@ -459,24 +542,44 @@ gst_wavpack_parse_loop (GstElement * element)
"channels", G_TYPE_INT, wavpackparse->channels,
"rate", G_TYPE_INT, wavpackparse->samplerate,
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
if (GST_IS_PAD (wavpackparse->srcpad)) {
gst_object_unref (wavpackparse->srcpad);
}
wavpackparse->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_GET_CLASS (wavpackparse), "src"), "src");
}
}
gst_pad_use_explicit_caps (wavpackparse->srcpad);
if (!(caps && GST_IS_PAD (wavpackparse->srcpad))) {
gst_buffer_unref (buf);
goto done;
}
gst_pad_set_query_function (wavpackparse->srcpad,
gst_wavpack_parse_src_query);
gst_pad_set_event_function (wavpackparse->srcpad,
gst_wavpack_parse_src_event);
gst_pad_set_caps (wavpackparse->srcpad, caps);
gst_pad_use_fixed_caps (wavpackparse->srcpad);
gst_element_add_pad (GST_ELEMENT (wavpackparse), wavpackparse->srcpad);
gst_pad_set_explicit_caps (wavpackparse->srcpad, caps);
}
buf = gst_buffer_new_and_alloc (header->ckSize + 8);
memcpy (GST_BUFFER_DATA (buf), data, header->ckSize + 8);
gst_bytestream_flush_fast (wavpackparse->bs, header->ckSize + 8);
if (wavpackparse->need_discont) {
if (GST_IS_PAD (wavpackparse->srcpad)) {
gst_pad_push_event (wavpackparse->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
wavpackparse->timestamp, GST_CLOCK_TIME_NONE, 0));
wavpackparse->need_discont = FALSE;
}
}
wavpackparse->flushed_bytes += header->ckSize + 8;
wavpackparse->timestamp =
((gdouble) header->block_index / (gdouble) wavpackparse->samplerate) *
GST_SECOND;
@ -484,38 +587,107 @@ gst_wavpack_parse_loop (GstElement * element)
GST_BUFFER_DURATION (buf) =
((gdouble) header->block_samples / (gdouble) wavpackparse->samplerate) *
GST_SECOND;
gst_pad_push (wavpackparse->srcpad, GST_DATA (buf));
gst_buffer_set_caps (buf, GST_PAD_CAPS (wavpackparse->srcpad));
if (GST_FLOW_OK != gst_pad_push (wavpackparse->srcpad, buf)) {
gst_buffer_unref (buf);
}
done:
GST_PAD_STREAM_UNLOCK (wavpackparse->sinkpad);
return;
}
static GstElementStateReturn
gst_wavpack_parse_change_state (GstElement * element)
static GstStateChangeReturn
gst_wavpack_parse_change_state (GstElement * element, GstStateChange transition)
{
GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_READY_TO_PAUSED:
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
wavpackparse->flushed_bytes = 0;
wavpackparse->need_discont = TRUE;
wavpackparse->bs = gst_bytestream_new (wavpackparse->sinkpad);
wavpackparse->eos = FALSE;
break;
case GST_STATE_PAUSED_TO_READY:
gst_bytestream_destroy (wavpackparse->bs);
wavpackparse->seek_pending = FALSE;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
{
GstQuery *query;
GstFormat format = GST_FORMAT_BYTES;
query = gst_query_new_duration (GST_FORMAT_BYTES);
if (gst_pad_query (GST_PAD_PEER (wavpackparse->sinkpad), query)) {
gst_query_parse_duration (query, &format,
(gint64 *) & wavpackparse->duration);
if (format != GST_FORMAT_BYTES) {
wavpackparse->duration = -1;
ret = GST_STATE_CHANGE_FAILURE;
}
} else {
wavpackparse->duration = -1;
ret = GST_STATE_CHANGE_FAILURE;
}
gst_query_unref (query);
}
break;
default:
break;
}
if (GST_ELEMENT_CLASS (parent)->change_state)
return GST_ELEMENT_CLASS (parent)->change_state (element);
ret = GST_ELEMENT_CLASS (parent)->change_state (element, transition);
return GST_STATE_SUCCESS;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
wavpackparse->seek_pending = FALSE;
break;
default:
break;
}
return ret;
}
static gboolean
gst_wavepack_parse_sink_activate (GstPad * sinkpad)
{
if (gst_pad_check_pull_range (sinkpad)) {
return gst_pad_activate_pull (sinkpad, TRUE);
} else {
return FALSE;
}
}
static gboolean
gst_wavepack_parse_sink_activate_pull (GstPad * sinkpad, gboolean active)
{
gboolean result;
if (active) {
result = gst_pad_start_task (sinkpad,
(GstTaskFunction) gst_wavpack_parse_loop, GST_PAD_PARENT (sinkpad));
} else {
result = gst_pad_stop_task (sinkpad);
}
return result;
return TRUE;
}
gboolean
gst_wavpack_parse_plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
if (!gst_element_register (plugin, "wavpackparse",
GST_RANK_PRIMARY, GST_TYPE_WAVPACK_PARSE)) {

7
ext/wavpack/gstwavpackparse.h
View file

@ -23,7 +23,6 @@
#define __GST_WAVPACK_PARSE_H__
#include <gst/gst.h>
#include <gst/bytestream/bytestream.h>
G_BEGIN_DECLS
@ -48,17 +47,19 @@ struct _GstWavpackParse
GstPad *sinkpad, *srcpad;
GstByteStream* bs;
guint32 samplerate;
guint32 channels;
guint32 total_samples;
guint64 timestamp;
guint64 flushed_bytes;
guint64 duration;
guint64 seek_offset;
gboolean seek_pending;
gboolean need_discont;
gboolean need_flush;
gboolean eos;
};
struct _GstWavpackParseClass