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taaz's virtual patch
Original commit message from CVS: taaz's virtual patch
This commit is contained in:
Thomas Vander Stichele
parent
ff6c7a13b8
commit
dc96794279
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@ -22,15 +22,15 @@
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#include <gstwavparse.h>
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static void gst_parsewav_class_init (GstParseWavClass *klass);
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static void gst_parsewav_init (GstParseWav *parsewav);
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static void gst_wavparse_class_init (GstWavParseClass *klass);
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static void gst_wavparse_init (GstWavParse *wavparse);
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static GstCaps* wav_typefind (GstBuffer *buf, gpointer private);
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static void gst_parsewav_chain (GstPad *pad, GstBuffer *buf);
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static void gst_wavparse_chain (GstPad *pad, GstBuffer *buf);
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/* elementfactory information */
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static GstElementDetails gst_parsewav_details = {
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static GstElementDetails gst_wavparse_details = {
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".wav parser",
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"Parser/Audio",
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"Parse a .wav file into raw audio",
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@ -40,22 +40,22 @@ static GstElementDetails gst_parsewav_details = {
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};
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GST_PADTEMPLATE_FACTORY (sink_template_factory,
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"parsewav_sink",
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"wavparse_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"parsewav_wav",
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"wavparse_wav",
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"audio/wav",
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NULL
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)
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)
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GST_PADTEMPLATE_FACTORY (src_template_factory,
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"parsewav_src",
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"wavparse_src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"parsewav_raw",
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"wavparse_raw",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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@ -78,14 +78,14 @@ GST_PADTEMPLATE_FACTORY (src_template_factory,
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static GstTypeDefinition
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wavdefinition =
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{
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"parsewav_audio/wav",
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"wavparse_audio/wav",
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"audio/wav",
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".wav",
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wav_typefind,
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};
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/* ParseWav signals and args */
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/* WavParse signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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@ -97,31 +97,31 @@ enum {
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};
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static GstElementClass *parent_class = NULL;
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//static guint gst_parsewav_signals[LAST_SIGNAL] = { 0 };
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//static guint gst_wavparse_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_parsewav_get_type (void)
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gst_wavparse_get_type (void)
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{
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static GType parsewav_type = 0;
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static GType wavparse_type = 0;
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if (!parsewav_type) {
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static const GTypeInfo parsewav_info = {
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sizeof(GstParseWavClass), NULL,
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if (!wavparse_type) {
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static const GTypeInfo wavparse_info = {
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sizeof(GstWavParseClass), NULL,
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NULL,
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(GClassInitFunc) gst_parsewav_class_init,
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(GClassInitFunc) gst_wavparse_class_init,
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NULL,
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NULL,
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sizeof(GstParseWav),
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sizeof(GstWavParse),
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0,
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(GInstanceInitFunc) gst_parsewav_init,
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(GInstanceInitFunc) gst_wavparse_init,
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};
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parsewav_type = g_type_register_static (GST_TYPE_ELEMENT, "GstParseWav", &parsewav_info, 0);
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wavparse_type = g_type_register_static (GST_TYPE_ELEMENT, "GstWavParse", &wavparse_info, 0);
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}
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return parsewav_type;
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return wavparse_type;
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}
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static void
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gst_parsewav_class_init (GstParseWavClass *klass)
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gst_wavparse_class_init (GstWavParseClass *klass)
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{
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GstElementClass *gstelement_class;
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@ -131,22 +131,22 @@ gst_parsewav_class_init (GstParseWavClass *klass)
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}
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static void
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gst_parsewav_init (GstParseWav *parsewav)
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gst_wavparse_init (GstWavParse *wavparse)
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{
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parsewav->sinkpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (sink_template_factory), "sink");
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gst_element_add_pad (GST_ELEMENT (parsewav), parsewav->sinkpad);
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gst_pad_set_chain_function (parsewav->sinkpad, gst_parsewav_chain);
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wavparse->sinkpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (sink_template_factory), "sink");
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gst_element_add_pad (GST_ELEMENT (wavparse), wavparse->sinkpad);
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gst_pad_set_chain_function (wavparse->sinkpad, gst_wavparse_chain);
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parsewav->srcpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (src_template_factory), "src");
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gst_element_add_pad (GST_ELEMENT (parsewav), parsewav->srcpad);
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wavparse->srcpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (src_template_factory), "src");
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gst_element_add_pad (GST_ELEMENT (wavparse), wavparse->srcpad);
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parsewav->riff = NULL;
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wavparse->riff = NULL;
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parsewav->state = GST_PARSEWAV_UNKNOWN;
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parsewav->riff = NULL;
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parsewav->riff_nextlikely = 0;
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parsewav->size = 0;
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parsewav->bps = 0;
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wavparse->state = GST_WAVPARSE_UNKNOWN;
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wavparse->riff = NULL;
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wavparse->riff_nextlikely = 0;
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wavparse->size = 0;
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wavparse->bps = 0;
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}
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static GstCaps*
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@ -162,9 +162,9 @@ wav_typefind (GstBuffer *buf, gpointer private)
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static void
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gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
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{
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GstParseWav *parsewav;
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GstWavParse *wavparse;
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gboolean buffer_riffed = FALSE; /* so we don't parse twice */
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gchar *data;
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gulong size;
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@ -174,29 +174,29 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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g_return_if_fail (buf != NULL);
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g_return_if_fail (GST_BUFFER_DATA (buf) != NULL);
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parsewav = GST_PARSEWAV (gst_pad_get_parent (pad));
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GST_DEBUG (0, "gst_parsewav_chain: got buffer in '%s'\n",
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gst_object_get_name (GST_OBJECT (parsewav)));
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wavparse = GST_WAVPARSE (gst_pad_get_parent (pad));
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GST_DEBUG (0, "gst_wavparse_chain: got buffer in '%s'\n",
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gst_object_get_name (GST_OBJECT (wavparse)));
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data = (guchar *) GST_BUFFER_DATA (buf);
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size = GST_BUFFER_SIZE (buf);
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/* walk through the states in priority order */
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/* we're in the data region */
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if (parsewav->state == GST_PARSEWAV_DATA) {
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if (wavparse->state == GST_WAVPARSE_DATA) {
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/* if we're expected to see a new chunk in this buffer */
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if ((parsewav->riff_nextlikely - GST_BUFFER_OFFSET (buf)) < GST_BUFFER_SIZE (buf)) {
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if ((wavparse->riff_nextlikely - GST_BUFFER_OFFSET (buf)) < GST_BUFFER_SIZE (buf)) {
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GST_BUFFER_SIZE (buf) = parsewav->riff_nextlikely - GST_BUFFER_OFFSET (buf);
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GST_BUFFER_SIZE (buf) = wavparse->riff_nextlikely - GST_BUFFER_OFFSET (buf);
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parsewav->state = GST_PARSEWAV_OTHER;
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wavparse->state = GST_WAVPARSE_OTHER;
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/* I suppose we could signal an EOF at this point, but that may be
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premature. We've stopped data flow, that's the main thing. */
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}
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gst_pad_push (parsewav->srcpad, buf);
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gst_pad_push (wavparse->srcpad, buf);
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return;
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}
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if (parsewav->state == GST_PARSEWAV_OTHER) {
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if (wavparse->state == GST_WAVPARSE_OTHER) {
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GST_DEBUG (0, "we're in unknown territory here, not passing on\n");
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return;
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}
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@ -207,16 +207,16 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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fmt, data) will fire in sequence, as they should */
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/* we're in null state now, look for the RIFF header, start parsing */
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if (parsewav->state == GST_PARSEWAV_UNKNOWN) {
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if (wavparse->state == GST_WAVPARSE_UNKNOWN) {
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gint retval;
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GST_DEBUG (0, "GstParseWav: checking for RIFF format\n");
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GST_DEBUG (0, "GstWavParse: checking for RIFF format\n");
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/* create a new RIFF parser */
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parsewav->riff = gst_riff_new ();
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wavparse->riff = gst_riff_new ();
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/* give it the current buffer to start parsing */
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retval = gst_riff_next_buffer (parsewav->riff, buf, 0);
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retval = gst_riff_next_buffer (wavparse->riff, buf, 0);
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buffer_riffed = TRUE;
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if (retval < 0) {
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GST_DEBUG (0, "sorry, isn't RIFF\n");
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@ -224,41 +224,41 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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}
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/* this has to be a file of form WAVE for us to deal with it */
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if (parsewav->riff->form != gst_riff_fourcc_to_id ("WAVE")) {
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if (wavparse->riff->form != gst_riff_fourcc_to_id ("WAVE")) {
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GST_DEBUG (0, "sorry, isn't WAVE\n");
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return;
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}
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/* at this point we're waiting for the 'fmt ' chunk */
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parsewav->state = GST_PARSEWAV_CHUNK_FMT;
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wavparse->state = GST_WAVPARSE_CHUNK_FMT;
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}
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/* we're now looking for the 'fmt ' chunk to get the audio info */
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if (parsewav->state == GST_PARSEWAV_CHUNK_FMT) {
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if (wavparse->state == GST_WAVPARSE_CHUNK_FMT) {
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GstRiffChunk *fmt;
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GstParseWavFormat *format;
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GstWavParseFormat *format;
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GST_DEBUG (0, "GstParseWav: looking for fmt chunk\n");
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GST_DEBUG (0, "GstWavParse: looking for fmt chunk\n");
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/* there's a good possibility we may not have parsed this buffer */
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if (buffer_riffed == FALSE) {
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gst_riff_next_buffer (parsewav->riff, buf, GST_BUFFER_OFFSET (buf));
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gst_riff_next_buffer (wavparse->riff, buf, GST_BUFFER_OFFSET (buf));
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buffer_riffed = TRUE;
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}
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/* see if the fmt chunk is available yet */
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fmt = gst_riff_get_chunk (parsewav->riff, "fmt ");
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fmt = gst_riff_get_chunk (wavparse->riff, "fmt ");
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/* if we've got something, deal with it */
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if (fmt != NULL) {
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/* we can gather format information now */
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format = (GstParseWavFormat *)((guchar *) GST_BUFFER_DATA (buf) + fmt->offset);
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format = (GstWavParseFormat *)((guchar *) GST_BUFFER_DATA (buf) + fmt->offset);
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/* set the caps on the src pad */
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gst_pad_try_set_caps (parsewav->srcpad,
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gst_pad_try_set_caps (wavparse->srcpad,
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GST_CAPS_NEW (
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"parsewav_src",
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"wavparse_src",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0), //FIXME
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@ -270,12 +270,12 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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"channels", GST_PROPS_INT (format->wChannels)
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));
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parsewav->bps = format->wBlockAlign;
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wavparse->bps = format->wBlockAlign;
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GST_DEBUG (0, "frequency %d, channels %d\n",
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format->dwSamplesPerSec, format->wChannels);
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/* we're now looking for the data chunk */
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parsewav->state = GST_PARSEWAV_CHUNK_DATA;
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wavparse->state = GST_WAVPARSE_CHUNK_DATA;
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} else {
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/* otherwise we just sort of give up for this buffer */
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gst_buffer_unref (buf);
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@ -284,19 +284,19 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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}
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/* now we look for the data chunk */
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if (parsewav->state == GST_PARSEWAV_CHUNK_DATA) {
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if (wavparse->state == GST_WAVPARSE_CHUNK_DATA) {
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GstBuffer *newbuf;
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GstRiffChunk *datachunk;
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GST_DEBUG (0, "GstParseWav: looking for data chunk\n");
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GST_DEBUG (0, "GstWavParse: looking for data chunk\n");
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/* again, we might need to parse the buffer */
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if (buffer_riffed == FALSE) {
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gst_riff_next_buffer (parsewav->riff, buf, GST_BUFFER_OFFSET (buf));
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gst_riff_next_buffer (wavparse->riff, buf, GST_BUFFER_OFFSET (buf));
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buffer_riffed = TRUE;
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}
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datachunk = gst_riff_get_chunk (parsewav->riff, "data");
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datachunk = gst_riff_get_chunk (wavparse->riff, "data");
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if (datachunk != NULL) {
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gulong subsize;
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@ -304,7 +304,7 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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GST_DEBUG (0, "data begins at %ld\n", datachunk->offset);
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/* at this point we can ACK that we have data */
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parsewav->state = GST_PARSEWAV_DATA;
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wavparse->state = GST_WAVPARSE_DATA;
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/* now we construct a new buffer for the remainder */
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subsize = size - datachunk->offset;
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@ -318,13 +318,13 @@ gst_parsewav_chain (GstPad *pad, GstBuffer *buf)
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gst_buffer_unref (buf);
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gst_pad_push (parsewav->srcpad, newbuf);
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gst_pad_push (wavparse->srcpad, newbuf);
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/* now we're ready to go, the next buffer should start data */
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parsewav->state = GST_PARSEWAV_DATA;
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wavparse->state = GST_WAVPARSE_DATA;
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/* however, we may be expecting another chunk at some point */
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parsewav->riff_nextlikely = gst_riff_get_nextlikely (parsewav->riff);
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wavparse->riff_nextlikely = gst_riff_get_nextlikely (wavparse->riff);
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} else {
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/* otherwise we just sort of give up for this buffer */
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gst_buffer_unref (buf);
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@ -340,9 +340,9 @@ plugin_init (GModule *module, GstPlugin *plugin)
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GstElementFactory *factory;
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GstTypeFactory *type;
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/* create an elementfactory for the parsewav element */
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factory = gst_elementfactory_new ("parsewav", GST_TYPE_PARSEWAV,
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&gst_parsewav_details);
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/* create an elementfactory for the wavparse element */
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factory = gst_elementfactory_new ("wavparse", GST_TYPE_WAVPARSE,
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&gst_wavparse_details);
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g_return_val_if_fail(factory != NULL, FALSE);
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/* register src pads */
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@ -360,6 +360,6 @@ plugin_init (GModule *module, GstPlugin *plugin)
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GstPluginDesc plugin_desc = {
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"parsewav",
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"wavparse",
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plugin_init
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};
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@ -18,8 +18,8 @@
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*/
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#ifndef __GST_PARSEWAV_H__
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#define __GST_PARSEWAV_H__
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#ifndef __GST_WAVPARSE_H__
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#define __GST_WAVPARSE_H__
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#include <config.h>
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@ -32,28 +32,28 @@ extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_PARSEWAV \
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(gst_parsewav_get_type())
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#define GST_PARSEWAV(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PARSEWAV,GstParseWav))
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#define GST_PARSEWAV_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PARSEWAV,GstParseWav))
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#define GST_IS_PARSEWAV(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PARSEWAV))
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#define GST_IS_PARSEWAV_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PARSEWAV))
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#define GST_TYPE_WAVPARSE \
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(gst_wavparse_get_type())
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#define GST_WAVPARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPARSE,GstWavParse))
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#define GST_WAVPARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPARSE,GstWavParse))
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#define GST_IS_WAVPARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPARSE))
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#define GST_IS_WAVPARSE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPARSE))
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#define GST_PARSEWAV_UNKNOWN 0 /* initialized state */
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#define GST_PARSEWAV_CHUNK_FMT 1 /* searching for fmt */
|
||||
#define GST_PARSEWAV_CHUNK_DATA 2 /* searching for data */
|
||||
#define GST_PARSEWAV_DATA 3 /* in data region */
|
||||
#define GST_PARSEWAV_OTHER 4 /* in unknown region */
|
||||
#define GST_WAVPARSE_UNKNOWN 0 /* initialized state */
|
||||
#define GST_WAVPARSE_CHUNK_FMT 1 /* searching for fmt */
|
||||
#define GST_WAVPARSE_CHUNK_DATA 2 /* searching for data */
|
||||
#define GST_WAVPARSE_DATA 3 /* in data region */
|
||||
#define GST_WAVPARSE_OTHER 4 /* in unknown region */
|
||||
|
||||
typedef struct _GstParseWav GstParseWav;
|
||||
typedef struct _GstParseWavClass GstParseWavClass;
|
||||
typedef struct _GstWavParse GstWavParse;
|
||||
typedef struct _GstWavParseClass GstWavParseClass;
|
||||
|
||||
struct _GstParseWav {
|
||||
struct _GstWavParse {
|
||||
GstElement element;
|
||||
|
||||
/* pads */
|
||||
|
|
@ -74,15 +74,15 @@ struct _GstParseWav {
|
|||
|
||||
};
|
||||
|
||||
struct _GstParseWavClass {
|
||||
struct _GstWavParseClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_parsewav_get_type(void);
|
||||
GType gst_wavparse_get_type(void);
|
||||
|
||||
typedef struct _GstParseWavFormat GstParseWavFormat;
|
||||
typedef struct _GstWavParseFormat GstWavParseFormat;
|
||||
|
||||
struct _GstParseWavFormat {
|
||||
struct _GstWavParseFormat {
|
||||
gint16 wFormatTag;
|
||||
guint16 wChannels;
|
||||
guint32 dwSamplesPerSec;
|
||||
|
|
|
|||
Loading…
Reference in a new issue