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Diffstat (limited to 'ext/bz2/gstbz2enc.c')
-rw-r--r--ext/bz2/gstbz2enc.c157
1 files changed, 97 insertions, 60 deletions
diff --git a/ext/bz2/gstbz2enc.c b/ext/bz2/gstbz2enc.c
index ed5a354b..81ac96de 100644
--- a/ext/bz2/gstbz2enc.c
+++ b/ext/bz2/gstbz2enc.c
@@ -27,11 +27,6 @@
GST_DEBUG_CATEGORY_STATIC (bz2enc_debug);
#define GST_CAT_DEFAULT bz2enc_debug
-static const GstElementDetails bz2enc_details =
-GST_ELEMENT_DETAILS ("BZ2 encoder",
- "Codec/Encoder", "Compresses streams",
- "Lutz Mueller <lutz@users.sourceforge.net>");
-
static GstStaticPadTemplate sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("ANY"));
@@ -53,6 +48,9 @@ struct _GstBz2enc
{
GstElement parent;
+ GstPad *sink;
+ GstPad *src;
+
/* Properties */
guint block_size;
guint buffer_size;
@@ -103,119 +101,156 @@ gst_bz2enc_compress_init (GstBz2enc * b)
static gboolean
gst_bz2enc_event (GstPad * pad, GstEvent * e)
{
- GstBz2enc *b = GST_BZ2ENC (gst_pad_get_parent (pad));
- GstPad *src = gst_element_get_pad (GST_ELEMENT (b), "src");
- int r = BZ_FINISH_OK;
- GstFlowReturn fr;
+ GstBz2enc *b;
+ gboolean ret;
- gst_object_unref (b);
- gst_object_unref (src);
+ b = GST_BZ2ENC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (e)) {
- case GST_EVENT_EOS:
- while (r != BZ_STREAM_END) {
+ case GST_EVENT_EOS:{
+ GstFlowReturn flow;
+ int r = BZ_FINISH_OK;
+
+ do {
GstBuffer *out;
- if ((fr = gst_pad_alloc_buffer (src, b->offset, b->buffer_size,
- GST_PAD_CAPS (src), &out)) != GST_FLOW_OK) {
- GST_ELEMENT_ERROR (b, STREAM, DECODE, (NULL),
- ("Failed to allocate buffer of size %i.", b->buffer_size));
+ flow = gst_pad_alloc_buffer (b->src, b->offset, b->buffer_size,
+ GST_PAD_CAPS (b->src), &out);
+
+ if (flow != GST_FLOW_OK) {
+ GST_DEBUG_OBJECT (b, "pad alloc on EOS failed: %s",
+ gst_flow_get_name (flow));
break;
}
+
b->stream.next_out = (char *) GST_BUFFER_DATA (out);
b->stream.avail_out = GST_BUFFER_SIZE (out);
r = BZ2_bzCompress (&b->stream, BZ_FINISH);
if ((r != BZ_FINISH_OK) && (r != BZ_STREAM_END)) {
- GST_ELEMENT_ERROR (b, STREAM, DECODE, (NULL),
+ GST_ELEMENT_ERROR (b, STREAM, ENCODE, (NULL),
("Failed to finish to compress (error code %i).", r));
gst_buffer_unref (out);
break;
}
+
if (b->stream.avail_out >= GST_BUFFER_SIZE (out)) {
gst_buffer_unref (out);
break;
}
+
GST_BUFFER_SIZE (out) -= b->stream.avail_out;
GST_BUFFER_OFFSET (out) =
b->stream.total_out_lo32 - GST_BUFFER_SIZE (out);
- if ((fr = gst_pad_push (src, out)) != GST_FLOW_OK) {
- GST_ELEMENT_ERROR (b, STREAM, DECODE, (NULL),
- ("Could not push last packet (error code %i).", r));
- gst_buffer_unref (out);
+
+ flow = gst_pad_push (b->src, out);
+
+ if (flow != GST_FLOW_OK) {
+ GST_DEBUG_OBJECT (b, "push on EOS failed: %s",
+ gst_flow_get_name (flow));
break;
}
- }
+ } while (r != BZ_STREAM_END);
+
+ ret = gst_pad_event_default (pad, e);
+
+ if (r != BZ_STREAM_END || flow != GST_FLOW_OK)
+ ret = FALSE;
+
gst_bz2enc_compress_init (b);
break;
+ }
default:
+ ret = gst_pad_event_default (pad, e);
break;
}
- return gst_pad_event_default (pad, e);
+
+ gst_object_unref (b);
+
+ return ret;
}
static GstFlowReturn
gst_bz2enc_chain (GstPad * pad, GstBuffer * in)
{
- GstBz2enc *b = GST_BZ2ENC (gst_pad_get_parent (pad));
- GstPad *src = gst_element_get_pad (GST_ELEMENT (b), "src");
- GstFlowReturn fr = GST_FLOW_OK;
+ GstFlowReturn flow = GST_FLOW_OK;
+ GstBuffer *out;
+ GstBz2enc *b;
guint n;
+ int bz2_ret;
- gst_object_unref (b);
- gst_object_unref (src);
- if (!b->ready) {
- GST_ELEMENT_ERROR (b, CORE, FAILED, (NULL), ("Compressor not ready."));
- return GST_FLOW_ERROR;
- }
+ b = GST_BZ2ENC (GST_PAD_PARENT (pad));
+
+ if (!b->ready)
+ goto not_ready;
b->stream.next_in = (char *) GST_BUFFER_DATA (in);
b->stream.avail_in = GST_BUFFER_SIZE (in);
- while ((fr == GST_FLOW_OK) && b->stream.avail_in) {
- GstBuffer *out;
- int r;
+ while (b->stream.avail_in) {
+ flow = gst_pad_alloc_buffer (b->src, b->offset, b->buffer_size,
+ GST_PAD_CAPS (pad), &out);
- if ((fr = gst_pad_alloc_buffer (src, b->offset, b->buffer_size,
- GST_PAD_CAPS (pad), &out)) != GST_FLOW_OK) {
+ if (flow != GST_FLOW_OK) {
gst_bz2enc_compress_init (b);
- return fr;
+ break;
}
+
b->stream.next_out = (char *) GST_BUFFER_DATA (out);
b->stream.avail_out = GST_BUFFER_SIZE (out);
- r = BZ2_bzCompress (&b->stream, BZ_RUN);
- if (r != BZ_RUN_OK) {
- GST_ELEMENT_ERROR (b, STREAM, DECODE, (NULL),
- ("Failed to compress data (error code %i).", r));
- gst_bz2enc_compress_init (b);
- gst_buffer_unref (out);
- return GST_FLOW_ERROR;
- }
+ bz2_ret = BZ2_bzCompress (&b->stream, BZ_RUN);
+ if (bz2_ret != BZ_RUN_OK)
+ goto compress_error;
+
if (b->stream.avail_out >= GST_BUFFER_SIZE (out)) {
gst_buffer_unref (out);
break;
}
+
GST_BUFFER_SIZE (out) -= b->stream.avail_out;
GST_BUFFER_OFFSET (out) = b->stream.total_out_lo32 - GST_BUFFER_SIZE (out);
n = GST_BUFFER_SIZE (out);
- if ((fr = gst_pad_push (src, out)) != GST_FLOW_OK) {
- gst_buffer_unref (out);
- return fr;
- }
+
+ flow = gst_pad_push (b->src, out);
+
+ if (flow != GST_FLOW_OK)
+ break;
+
b->offset += n;
}
+
+done:
+
gst_buffer_unref (in);
- return GST_FLOW_OK;
+ return flow;
+
+/* ERRORS */
+not_ready:
+ {
+ GST_ELEMENT_ERROR (b, LIBRARY, FAILED, (NULL), ("Compressor not ready."));
+ flow = GST_FLOW_WRONG_STATE;
+ goto done;
+ }
+compress_error:
+ {
+ GST_ELEMENT_ERROR (b, STREAM, ENCODE, (NULL),
+ ("Failed to compress data (error code %i)", bz2_ret));
+ gst_bz2enc_compress_init (b);
+ gst_buffer_unref (out);
+ flow = GST_FLOW_ERROR;
+ goto done;
+ }
}
static void
gst_bz2enc_init (GstBz2enc * b, GstBz2encClass * klass)
{
- GstPad *pad;
+ b->sink = gst_pad_new_from_static_template (&sink_template, "sink");
+ gst_pad_set_chain_function (b->sink, GST_DEBUG_FUNCPTR (gst_bz2enc_chain));
+ gst_pad_set_event_function (b->sink, GST_DEBUG_FUNCPTR (gst_bz2enc_event));
+ gst_element_add_pad (GST_ELEMENT (b), b->sink);
- pad = gst_pad_new_from_static_template (&sink_template, "sink");
- gst_pad_set_chain_function (pad, gst_bz2enc_chain);
- gst_pad_set_event_function (pad, gst_bz2enc_event);
- gst_element_add_pad (GST_ELEMENT (b), pad);
- pad = gst_pad_new_from_static_template (&src_template, "src");
- gst_element_add_pad (GST_ELEMENT (b), pad);
+ b->src = gst_pad_new_from_static_template (&src_template, "src");
+ gst_pad_set_caps (b->src, gst_static_pad_template_get_caps (&src_template));
+ gst_pad_use_fixed_caps (b->src);
+ gst_element_add_pad (GST_ELEMENT (b), b->src);
b->block_size = DEFAULT_BLOCK_SIZE;
b->buffer_size = DEFAULT_BUFFER_SIZE;
@@ -231,7 +266,9 @@ gst_bz2enc_base_init (gpointer g_class)
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (ec,
gst_static_pad_template_get (&src_template));
- gst_element_class_set_details (ec, &bz2enc_details);
+ gst_element_class_set_details_simple (ec, "BZ2 encoder",
+ "Codec/Encoder", "Compresses streams",
+ "Lutz Mueller <lutz@users.sourceforge.net>");
}
static void
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-09 12:40:37 +0000