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ext/libpng/gstpngdec.*: Use statically allocated segment instead of leaking.
Original commit message from CVS: * ext/libpng/gstpngdec.c: (gst_pngdec_init), (buffer_clip), (gst_pngdec_caps_create_and_set), (gst_pngdec_task), (gst_pngdec_chain), (gst_pngdec_sink_event), (gst_pngdec_libpng_init), (gst_pngdec_change_state), (gst_pngdec_sink_activate_push): * ext/libpng/gstpngdec.h: Use statically allocated segment instead of leaking. Various cleanups. Fix flush and seek handling.
This commit is contained in:
Wim Taymans
parent
f6a274239a
commit
cc350794fb
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2006-07-17 Wim Taymans <wim@fluendo.com>
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* ext/libpng/gstpngdec.c: (gst_pngdec_init), (buffer_clip),
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(gst_pngdec_caps_create_and_set), (gst_pngdec_task),
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(gst_pngdec_chain), (gst_pngdec_sink_event),
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(gst_pngdec_libpng_init), (gst_pngdec_change_state),
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(gst_pngdec_sink_activate_push):
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* ext/libpng/gstpngdec.h:
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Use statically allocated segment instead of leaking.
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Various cleanups.
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Fix flush and seek handling.
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2006-07-16 Wim Taymans <wim@fluendo.com>
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* gst/rtp/Makefile.am:
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@ -159,7 +159,7 @@ gst_pngdec_init (GstPngDec * pngdec)
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pngdec->in_timestamp = GST_CLOCK_TIME_NONE;
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pngdec->in_duration = GST_CLOCK_TIME_NONE;
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pngdec->segment = gst_segment_new ();
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gst_segment_init (&pngdec->segment, GST_FORMAT_UNDEFINED);
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}
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static void
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@ -240,10 +240,10 @@ buffer_clip (GstPngDec * dec, GstBuffer * buffer)
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if ((!GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buffer))) ||
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(!GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DURATION (buffer))) ||
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(dec->segment->format != GST_FORMAT_TIME))
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(dec->segment.format != GST_FORMAT_TIME))
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goto beach;
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if ((res = gst_segment_clip (dec->segment, GST_FORMAT_TIME,
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if ((res = gst_segment_clip (&dec->segment, GST_FORMAT_TIME,
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GST_BUFFER_TIMESTAMP (buffer),
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GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer),
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&cstart, &cstop))) {
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@ -403,7 +403,7 @@ gst_pngdec_caps_create_and_set (GstPngDec * pngdec)
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default:
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GST_ELEMENT_ERROR (pngdec, STREAM, NOT_IMPLEMENTED, (NULL),
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("pngdec does not support this color type"));
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ret = GST_FLOW_ERROR;
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ret = GST_FLOW_NOT_SUPPORTED;
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goto beach;
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}
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@ -420,9 +420,8 @@ gst_pngdec_caps_create_and_set (GstPngDec * pngdec)
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gst_caps_unref (caps);
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gst_object_unref (templ);
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if (!gst_pad_set_caps (pngdec->srcpad, res)) {
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ret = GST_FLOW_ERROR;
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}
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if (!gst_pad_set_caps (pngdec->srcpad, res))
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ret = GST_FLOW_NOT_NEGOTIATED;
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GST_DEBUG_OBJECT (pngdec, "our caps %" GST_PTR_FORMAT, res);
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@ -505,13 +504,15 @@ gst_pngdec_task (GstPad * pad)
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return;
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pause:
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GST_LOG_OBJECT (pngdec, "pausing task, reason %s", gst_flow_get_name (ret));
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gst_pad_pause_task (pngdec->sinkpad);
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if (GST_FLOW_IS_FATAL (ret)) {
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gst_pad_push_event (pngdec->srcpad, gst_event_new_eos ());
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GST_ELEMENT_ERROR (pngdec, STREAM, FAILED,
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(_("Internal data stream error.")),
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("stream stopped, reason %s", gst_flow_get_name (ret)));
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{
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GST_LOG_OBJECT (pngdec, "pausing task, reason %s", gst_flow_get_name (ret));
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gst_pad_pause_task (pngdec->sinkpad);
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if (GST_FLOW_IS_FATAL (ret)) {
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gst_pad_push_event (pngdec->srcpad, gst_event_new_eos ());
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GST_ELEMENT_ERROR (pngdec, STREAM, FAILED,
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(_("Internal data stream error.")),
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("stream stopped, reason %s", gst_flow_get_name (ret)));
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}
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}
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}
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@ -521,25 +522,23 @@ gst_pngdec_chain (GstPad * pad, GstBuffer * buffer)
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GstPngDec *pngdec;
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GstFlowReturn ret = GST_FLOW_OK;
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pngdec = GST_PNGDEC (GST_OBJECT_PARENT (pad));
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pngdec = GST_PNGDEC (gst_pad_get_parent (pad));
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GST_LOG_OBJECT (pngdec, "Got buffer, size=%u", GST_BUFFER_SIZE (buffer));
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if (!pngdec->setup) {
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GST_LOG ("we are not configured yet");
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ret = GST_FLOW_WRONG_STATE;
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goto beach;
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}
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if (G_UNLIKELY (!pngdec->setup))
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goto not_configured;
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/* Something is going wrong in our callbacks */
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if (pngdec->ret != GST_FLOW_OK) {
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ret = pngdec->ret;
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ret = pngdec->ret;
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if (G_UNLIKELY (ret != GST_FLOW_OK)) {
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GST_WARNING_OBJECT (pngdec, "we have a pending return code of %d", ret);
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goto beach;
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}
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/* Let libpng come back here on error */
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if (setjmp (png_jmpbuf (pngdec->png))) {
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GST_WARNING ("error during decoding");
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GST_WARNING_OBJECT (pngdec, "error during decoding");
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ret = GST_FLOW_ERROR;
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goto beach;
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}
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@ -550,13 +549,25 @@ gst_pngdec_chain (GstPad * pad, GstBuffer * buffer)
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/* Progressive loading of the PNG image */
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png_process_data (pngdec->png, pngdec->info, GST_BUFFER_DATA (buffer),
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GST_BUFFER_SIZE (buffer));
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/* grab new return code */
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ret = pngdec->ret;
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/* And release the buffer */
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gst_buffer_unref (buffer);
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beach:
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gst_object_unref (pngdec);
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return ret;
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/* ERRORS */
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not_configured:
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{
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GST_LOG_OBJECT (pngdec, "we are not configured yet");
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ret = GST_FLOW_WRONG_STATE;
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goto beach;
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}
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}
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static gboolean
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@ -594,40 +605,49 @@ gst_pngdec_sink_event (GstPad * pad, GstEvent * event)
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_NEWSEGMENT:{
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gdouble rate;
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gdouble rate, arate;
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gboolean update;
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gint64 start, stop, position;
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GstFormat fmt;
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gst_event_parse_new_segment (event, &update, &rate, &fmt, &start, &stop,
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&position);
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gst_segment_set_newsegment (pngdec->segment, update, rate, fmt, start,
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stop, position);
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gst_event_parse_new_segment_full (event, &update, &rate, &arate, &fmt,
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&start, &stop, &position);
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gst_segment_set_newsegment_full (&pngdec->segment, update, rate, arate,
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fmt, start, stop, position);
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GST_LOG_OBJECT (pngdec, "NEWSEGMENT (%s)", gst_format_get_name (fmt));
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if (fmt == GST_FORMAT_TIME) {
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pngdec->need_newsegment = FALSE;
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res = gst_pad_event_default (pad, event);
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res = gst_pad_push_event (pngdec->srcpad, event);
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} else {
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gst_event_unref (event);
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res = TRUE;
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}
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break;
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}
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case GST_EVENT_FLUSH_START:
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gst_pngdec_libpng_clear (pngdec);
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res = gst_pad_event_default (pad, event);
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break;
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case GST_EVENT_FLUSH_STOP:
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{
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gst_pngdec_libpng_clear (pngdec);
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gst_pngdec_libpng_init (pngdec);
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res = gst_pad_event_default (pad, event);
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png_set_progressive_read_fn (pngdec->png, pngdec,
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user_info_callback, user_endrow_callback, user_end_callback);
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pngdec->ret = GST_FLOW_OK;
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gst_segment_init (&pngdec->segment, GST_FORMAT_UNDEFINED);
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res = gst_pad_push_event (pngdec->srcpad, event);
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break;
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}
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case GST_EVENT_EOS:
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{
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GST_LOG_OBJECT (pngdec, "EOS");
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gst_pngdec_libpng_clear (pngdec);
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res = gst_pad_event_default (pad, event);
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pngdec->ret = GST_FLOW_UNEXPECTED;
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res = gst_pad_push_event (pngdec->srcpad, event);
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break;
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}
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default:
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res = gst_pad_event_default (pad, event);
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res = gst_pad_push_event (pngdec->srcpad, event);
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break;
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}
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@ -679,40 +699,51 @@ gst_pngdec_libpng_init (GstPngDec * pngdec)
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{
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g_return_val_if_fail (GST_IS_PNGDEC (pngdec), FALSE);
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if (pngdec->setup) {
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goto beach;
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}
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if (pngdec->setup)
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return TRUE;
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GST_LOG ("init libpng structures");
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/* initialize png struct stuff */
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pngdec->png = png_create_read_struct (PNG_LIBPNG_VER_STRING,
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(png_voidp) NULL, user_error_fn, user_warning_fn);
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if (pngdec->png == NULL) {
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize png structure"));
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goto beach;
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}
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if (pngdec->png == NULL)
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goto init_failed;
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pngdec->info = png_create_info_struct (pngdec->png);
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if (pngdec->info == NULL) {
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gst_pngdec_libpng_clear (pngdec);
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize info structure"));
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goto beach;
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}
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if (pngdec->info == NULL)
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goto info_failed;
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pngdec->endinfo = png_create_info_struct (pngdec->png);
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if (pngdec->endinfo == NULL) {
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gst_pngdec_libpng_clear (pngdec);
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize endinfo structure"));
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goto beach;
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}
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if (pngdec->endinfo == NULL)
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goto endinfo_failed;
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pngdec->setup = TRUE;
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beach:
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return pngdec->setup;
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return TRUE;
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/* ERRORS */
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init_failed:
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{
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize png structure"));
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return FALSE;
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}
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info_failed:
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{
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gst_pngdec_libpng_clear (pngdec);
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize info structure"));
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return FALSE;
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}
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endinfo_failed:
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{
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gst_pngdec_libpng_clear (pngdec);
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GST_ELEMENT_ERROR (pngdec, LIBRARY, INIT, (NULL),
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("Failed to initialize endinfo structure"));
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return FALSE;
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}
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}
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static GstStateChangeReturn
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@ -728,8 +759,8 @@ gst_pngdec_change_state (GstElement * element, GstStateChange transition)
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gst_pngdec_libpng_init (pngdec);
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pngdec->need_newsegment = TRUE;
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pngdec->framed = FALSE;
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pngdec->segment = gst_segment_new ();
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gst_segment_init (pngdec->segment, GST_FORMAT_UNDEFINED);
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pngdec->ret = GST_FLOW_OK;
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gst_segment_init (&pngdec->segment, GST_FORMAT_UNDEFINED);
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break;
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default:
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break;
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@ -742,10 +773,6 @@ gst_pngdec_change_state (GstElement * element, GstStateChange transition)
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switch (transition) {
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_pngdec_libpng_clear (pngdec);
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if (pngdec->segment) {
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gst_segment_free (pngdec->segment);
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pngdec->segment = NULL;
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}
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break;
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default:
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break;
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@ -766,18 +793,21 @@ gst_pngdec_sink_activate_push (GstPad * sinkpad, gboolean active)
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if (active) {
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/* Let libpng come back here on error */
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if (setjmp (png_jmpbuf (pngdec->png))) {
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GST_LOG ("failed setting up libpng jumb");
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gst_pngdec_libpng_clear (pngdec);
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return FALSE;
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}
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if (setjmp (png_jmpbuf (pngdec->png)))
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goto setup_failed;
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GST_LOG ("setting up progressive loading callbacks");
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png_set_progressive_read_fn (pngdec->png, pngdec,
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user_info_callback, user_endrow_callback, user_end_callback);
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}
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return TRUE;
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setup_failed:
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{
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GST_LOG ("failed setting up libpng jmpbuf");
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gst_pngdec_libpng_clear (pngdec);
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return FALSE;
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}
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}
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/* this function gets called when we activate ourselves in pull mode.
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@ -67,7 +67,8 @@ struct _GstPngDec
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gboolean framed;
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GstClockTime in_timestamp;
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GstClockTime in_duration;
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GstSegment *segment;
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GstSegment segment;
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};
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struct _GstPngDecClass
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