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Fix regressions from using gstriff library

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Original commit message from CVS:
Fix regressions from using gstriff library
This commit is contained in:
David Schleef 2003-08-13 06:41:09 +00:00
parent b3a95010c1
commit b957481334
3 changed files with 105 additions and 92 deletions
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2
gst/wavparse/Makefile.am
View file

@ -6,4 +6,4 @@ libgstwavparse_la_CFLAGS = $(GST_CFLAGS)
libgstwavparse_la_LIBADD =
libgstwavparse_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstwavparse.h gstriff.h
noinst_HEADERS = gstwavparse.h

193
gst/wavparse/gstwavparse.c
View file

@ -224,6 +224,92 @@ wav_type_find (GstBuffer *buf, gpointer private)
return gst_caps_new ("wav_type_find", "audio/x-wav", NULL);
}
static void wav_new_chunk_callback(GstRiffChunk *chunk, gpointer data)
{
GstWavParse *wavparse;
wavparse = GST_WAVPARSE (data);
GST_DEBUG("new tag " GST_FOURCC_FORMAT "\n", GST_FOURCC_ARGS(chunk->id));
if(chunk->id == GST_RIFF_TAG_fmt){
GstWavParseFormat *format;
GstCaps *caps = NULL;
/* we can gather format information now */
format = (GstWavParseFormat *)((guchar *) GST_BUFFER_DATA (wavparse->buf) + chunk->offset);
wavparse->bps = GUINT16_FROM_LE(format->wBlockAlign);
wavparse->rate = GUINT32_FROM_LE(format->dwSamplesPerSec);
wavparse->channels = GUINT16_FROM_LE(format->wChannels);
wavparse->width = GUINT16_FROM_LE(format->wBitsPerSample);
wavparse->format = GINT16_FROM_LE(format->wFormatTag);
/* set the caps on the src pad */
/* FIXME: handle all of the other formats as well */
switch (wavparse->format)
{
case GST_RIFF_WAVE_FORMAT_ALAW:
case GST_RIFF_WAVE_FORMAT_MULAW: {
gchar *mime = (wavparse->format == GST_RIFF_WAVE_FORMAT_ALAW) ?
"audio/x-alaw" : "audio/x-mulaw";
if (!(wavparse->width == 8)) {
g_warning("Ignoring invalid width %d",
wavparse->width);
return;
}
caps = GST_CAPS_NEW (
"parsewav_src",
mime,
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
}
break;
case GST_RIFF_WAVE_FORMAT_PCM:
caps = GST_CAPS_NEW (
"parsewav_src",
"audio/x-raw-int",
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
"signed", GST_PROPS_BOOLEAN ((wavparse->width > 8) ? TRUE : FALSE),
"width", GST_PROPS_INT (wavparse->width),
"depth", GST_PROPS_INT (wavparse->width),
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
break;
case GST_RIFF_WAVE_FORMAT_MPEGL12:
case GST_RIFF_WAVE_FORMAT_MPEGL3: {
gint layer = (wavparse->format == GST_RIFF_WAVE_FORMAT_MPEGL12) ? 2 : 3;
caps = GST_CAPS_NEW (
"parsewav_src",
"audio/mpeg",
"layer", GST_PROPS_INT (layer),
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
}
break;
default:
gst_element_error (GST_ELEMENT (wavparse), "wavparse: format %d not handled", wavparse->format);
return;
}
if (gst_pad_try_set_caps (wavparse->srcpad, caps) <= 0) {
gst_element_error (GST_ELEMENT (wavparse), "Could not set caps");
return;
}
GST_DEBUG ("frequency %d, channels %d",
wavparse->rate, wavparse->channels);
/* we're now looking for the data chunk */
wavparse->state = GST_WAVPARSE_CHUNK_DATA;
}
}
static void
gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
{
@ -242,6 +328,8 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
size = GST_BUFFER_SIZE (buf);
wavparse->buf = buf;
/* walk through the states in priority order */
/* we're in the data region */
if (wavparse->state == GST_WAVPARSE_DATA) {
@ -303,6 +391,7 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
if (wavparse->state == GST_WAVPARSE_OTHER) {
GST_DEBUG ("we're in unknown territory here, not passing on");
gst_buffer_unref(buf);
return;
}
@ -318,30 +407,33 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
GST_DEBUG ("GstWavParse: checking for RIFF format");
/* create a new RIFF parser */
wavparse->riff = gst_riff_parser_new (NULL, NULL);
wavparse->riff = gst_riff_parser_new (wav_new_chunk_callback, wavparse);
/* give it the current buffer to start parsing */
retval = gst_riff_parser_next_buffer (wavparse->riff, buf, 0);
buffer_riffed = TRUE;
if (retval < 0) {
GST_DEBUG ("sorry, isn't RIFF");
gst_buffer_unref(buf);
return;
}
/* this has to be a file of form WAVE for us to deal with it */
if (wavparse->riff->form != gst_riff_fourcc_to_id ("WAVE")) {
GST_DEBUG ("sorry, isn't WAVE");
gst_buffer_unref(buf);
return;
}
/* at this point we're waiting for the 'fmt ' chunk */
wavparse->state = GST_WAVPARSE_CHUNK_FMT;
/* careful, the state may have changed in the callback */
if (wavparse->state == GST_WAVPARSE_UNKNOWN){
wavparse->state = GST_WAVPARSE_CHUNK_FMT;
}
}
/* we're now looking for the 'fmt ' chunk to get the audio info */
if (wavparse->state == GST_WAVPARSE_CHUNK_FMT) {
GstRiffChunk *fmt;
GstWavParseFormat *format;
GST_DEBUG ("GstWavParse: looking for fmt chunk");
@ -351,93 +443,11 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
buffer_riffed = TRUE;
}
/* see if the fmt chunk is available yet */
fmt = gst_riff_parser_get_chunk (wavparse->riff, GST_RIFF_TAG_fmt);
/* if we've got something, deal with it */
if (fmt != NULL) {
GstCaps *caps = NULL;
/* we can gather format information now */
format = (GstWavParseFormat *)((guchar *) GST_BUFFER_DATA (buf) + fmt->offset);
wavparse->bps = GUINT16_FROM_LE(format->wBlockAlign);
wavparse->rate = GUINT32_FROM_LE(format->dwSamplesPerSec);
wavparse->channels = GUINT16_FROM_LE(format->wChannels);
wavparse->width = GUINT16_FROM_LE(format->wBitsPerSample);
wavparse->format = GINT16_FROM_LE(format->wFormatTag);
/* set the caps on the src pad */
/* FIXME: handle all of the other formats as well */
switch (wavparse->format)
{
case GST_RIFF_WAVE_FORMAT_ALAW:
case GST_RIFF_WAVE_FORMAT_MULAW: {
gchar *mime = (wavparse->format == GST_RIFF_WAVE_FORMAT_ALAW) ?
"audio/x-alaw" : "audio/x-mulaw";
if (!(wavparse->width == 8)) {
g_warning("Ignoring invalid width %d",
wavparse->width);
return;
}
caps = GST_CAPS_NEW (
"parsewav_src",
mime,
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
}
break;
case GST_RIFF_WAVE_FORMAT_PCM:
caps = GST_CAPS_NEW (
"parsewav_src",
"audio/x-raw-int",
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
"signed", GST_PROPS_BOOLEAN ((wavparse->width > 8) ? TRUE : FALSE),
"width", GST_PROPS_INT (wavparse->width),
"depth", GST_PROPS_INT (wavparse->width),
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
break;
case GST_RIFF_WAVE_FORMAT_MPEGL12:
case GST_RIFF_WAVE_FORMAT_MPEGL3: {
gint layer = (wavparse->format == GST_RIFF_WAVE_FORMAT_MPEGL12) ? 2 : 3;
caps = GST_CAPS_NEW (
"parsewav_src",
"audio/mpeg",
"layer", GST_PROPS_INT (layer),
"rate", GST_PROPS_INT (wavparse->rate),
"channels", GST_PROPS_INT (wavparse->channels)
);
}
break;
default:
gst_element_error (GST_ELEMENT (wavparse), "wavparse: format %d not handled", wavparse->format);
return;
}
if (gst_pad_try_set_caps (wavparse->srcpad, caps) <= 0) {
gst_element_error (GST_ELEMENT (wavparse), "Could not set caps");
return;
}
GST_DEBUG ("frequency %d, channels %d",
wavparse->rate, wavparse->channels);
/* we're now looking for the data chunk */
wavparse->state = GST_WAVPARSE_CHUNK_DATA;
} else {
/* otherwise we just sort of give up for this buffer */
gst_buffer_unref (buf);
return;
}
return;
}
/* now we look for the data chunk */
if (wavparse->state == GST_WAVPARSE_CHUNK_DATA) {
GstBuffer *newbuf;
GstRiffChunk *datachunk;
GST_DEBUG ("GstWavParse: looking for data chunk");
@ -452,6 +462,7 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
if (datachunk != NULL) {
gulong subsize;
GstBuffer *newbuf;
GST_DEBUG ("data begins at %ld", datachunk->offset);
@ -481,12 +492,12 @@ gst_wavparse_chain (GstPad *pad, GstBuffer *buf)
/* however, we may be expecting another chunk at some point */
wavparse->riff_nextlikely = gst_riff_parser_get_nextlikely (wavparse->riff);
} else {
/* otherwise we just sort of give up for this buffer */
gst_buffer_unref (buf);
return;
}
}
gst_buffer_unref (buf);
}
/* convert and query stuff */
@ -705,7 +716,7 @@ plugin_init (GModule *module, GstPlugin *plugin)
GstElementFactory *factory;
GstTypeFactory *type;
if(gst_library_load("gstriff") == FALSE){
if(!gst_library_load("gstriff")){
return FALSE;
}

2
gst/wavparse/gstwavparse.h
View file

@ -81,6 +81,8 @@ struct _GstWavParse {
gint64 offset;
gint64 datastart;
gboolean need_discont;
GstBuffer *buf;
};
struct _GstWavParseClass {