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modplug: work around memory trashing in libmodplug (0.8.7)

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Allocate double sized buffers. Also add more debug logging.
This commit is contained in:
Stefan Sauer 2012-03-23 18:16:08 +01:00
parent 2712ab6216
commit bece1c97f2
1 changed files with 11 additions and 3 deletions
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14
ext/modplug/gstmodplug.cc
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@ -467,6 +467,8 @@ static void
gst_modplug_fixate (GstPad * pad, GstCaps * caps) gst_modplug_fixate (GstPad * pad, GstCaps * caps)
{ {
GstStructure *structure; GstStructure *structure;
GST_DEBUG_OBJECT (pad, "Fixating caps: %"GST_PTR_FORMAT, caps);
structure = gst_caps_get_structure (caps, 0); structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_fixate_field_nearest_int (structure, "rate", 44100)) if (!gst_structure_fixate_field_nearest_int (structure, "rate", 44100))
@ -500,6 +502,10 @@ gst_modplug_load_song (GstModPlug * modplug)
gst_structure_get_int (structure, "depth", &modplug->bits); gst_structure_get_int (structure, "depth", &modplug->bits);
gst_structure_get_int (structure, "channels", &modplug->channel); gst_structure_get_int (structure, "channels", &modplug->channel);
gst_structure_get_int (structure, "rate", &modplug->frequency); gst_structure_get_int (structure, "rate", &modplug->frequency);
GST_DEBUG_OBJECT (modplug,
"Audio settings: %d bits, %d channel(s), %d Hz sampling rate",
modplug->bits, modplug->channel, modplug->frequency);
gst_pad_set_caps (modplug->srcpad, newcaps); gst_pad_set_caps (modplug->srcpad, newcaps);
gst_caps_unref (newcaps); gst_caps_unref (newcaps);
@ -667,7 +673,6 @@ gst_modplug_loop (GstModPlug * modplug)
GST_TAG_COMMENT, comment, NULL); GST_TAG_COMMENT, comment, NULL);
} }
gst_element_found_tags (GST_ELEMENT (modplug), tags); gst_element_found_tags (GST_ELEMENT (modplug), tags);
} else { } else {
/* not fully loaded yet */ /* not fully loaded yet */
@ -682,7 +687,7 @@ gst_modplug_loop (GstModPlug * modplug)
gfloat temp; gfloat temp;
temp = (gfloat) modplug->song_length / modplug->seek_at; temp = (gfloat) modplug->song_length / modplug->seek_at;
seek_to_pos = (int) (modplug->mSoundFile->GetMaxPosition () / temp); seek_to_pos = (gint) (modplug->mSoundFile->GetMaxPosition () / temp);
GST_DEBUG_OBJECT (modplug, "Seeking to row %d", seek_to_pos); GST_DEBUG_OBJECT (modplug, "Seeking to row %d", seek_to_pos);
@ -691,9 +696,12 @@ gst_modplug_loop (GstModPlug * modplug)
} }
/* read and output a buffer */ /* read and output a buffer */
GST_LOG_OBJECT (modplug, "Read %d bytes", (gint)modplug->read_bytes);
/* libmodplug 0.8.7 trashes memory */
flow = gst_pad_alloc_buffer_and_set_caps (modplug->srcpad, flow = gst_pad_alloc_buffer_and_set_caps (modplug->srcpad,
GST_BUFFER_OFFSET_NONE, modplug->read_bytes, GST_BUFFER_OFFSET_NONE, modplug->read_bytes * 2,
GST_PAD_CAPS (modplug->srcpad), &out); GST_PAD_CAPS (modplug->srcpad), &out);
GST_BUFFER_SIZE (out) = modplug->read_bytes;
if (flow != GST_FLOW_OK) { if (flow != GST_FLOW_OK) {
GST_LOG_OBJECT (modplug, "pad alloc flow: %s", gst_flow_get_name (flow)); GST_LOG_OBJECT (modplug, "pad alloc flow: %s", gst_flow_get_name (flow));