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vorbisenc: only push header buffers following initial events

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This commit is contained in:
Mark Nauwelaerts 2011-10-09 21:19:32 +02:00
parent bc6f00becb
commit a7f508012c
2 changed files with 46 additions and 24 deletions
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69
ext/vorbis/gstvorbisenc.c
View file

@ -106,6 +106,8 @@ static GstFlowReturn gst_vorbis_enc_handle_frame (GstAudioEncoder * enc,
static GstCaps *gst_vorbis_enc_getcaps (GstAudioEncoder * enc);
static gboolean gst_vorbis_enc_sink_event (GstAudioEncoder * enc,
GstEvent * event);
static GstFlowReturn gst_vorbis_enc_pre_push (GstAudioEncoder * enc,
GstBuffer ** buffer);
static gboolean gst_vorbis_enc_setup (GstVorbisEnc * vorbisenc);
@ -163,6 +165,7 @@ gst_vorbis_enc_class_init (GstVorbisEncClass * klass)
base_class->handle_frame = GST_DEBUG_FUNCPTR (gst_vorbis_enc_handle_frame);
base_class->getcaps = GST_DEBUG_FUNCPTR (gst_vorbis_enc_getcaps);
base_class->event = GST_DEBUG_FUNCPTR (gst_vorbis_enc_sink_event);
base_class->pre_push = GST_DEBUG_FUNCPTR (gst_vorbis_enc_pre_push);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_BITRATE,
g_param_spec_int ("max-bitrate", "Maximum Bitrate",
@ -255,6 +258,8 @@ gst_vorbis_enc_stop (GstAudioEncoder * enc)
vorbisenc->last_message = NULL;
gst_tag_list_free (vorbisenc->tags);
vorbisenc->tags = NULL;
g_slist_foreach (vorbisenc->headers, (GFunc) gst_buffer_unref, NULL);
vorbisenc->headers = NULL;
return TRUE;
}
@ -620,6 +625,8 @@ gst_vorbis_enc_push_header (GstVorbisEnc * vorbisenc, GstBuffer * buffer)
"Pushing buffer with GP %" G_GINT64_FORMAT ", ts %" GST_TIME_FORMAT,
GST_BUFFER_OFFSET_END (buffer),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
gst_buffer_set_caps (buffer,
GST_PAD_CAPS (GST_AUDIO_ENCODER_SRC_PAD (vorbisenc)));
return gst_pad_push (GST_AUDIO_ENCODER_SRC_PAD (vorbisenc), buffer);
}
@ -740,20 +747,16 @@ gst_vorbis_enc_handle_frame (GstAudioEncoder * enc, GstBuffer * buffer)
gst_buffer_set_caps (buf1, caps);
gst_buffer_set_caps (buf2, caps);
gst_buffer_set_caps (buf3, caps);
gst_pad_set_caps (GST_AUDIO_ENCODER_SRC_PAD (vorbisenc), caps);
gst_caps_unref (caps);
/* push out buffers */
/* push_buffer takes the reference even for failure */
if ((ret = gst_vorbis_enc_push_header (vorbisenc, buf1)) != GST_FLOW_OK)
goto failed_header_push;
if ((ret = gst_vorbis_enc_push_header (vorbisenc, buf2)) != GST_FLOW_OK) {
buf2 = NULL;
goto failed_header_push;
}
if ((ret = gst_vorbis_enc_push_header (vorbisenc, buf3)) != GST_FLOW_OK) {
buf3 = NULL;
goto failed_header_push;
}
/* store buffers for later pre_push sending */
g_slist_foreach (vorbisenc->headers, (GFunc) gst_buffer_unref, NULL);
vorbisenc->headers = NULL;
GST_DEBUG_OBJECT (vorbisenc, "storing header buffers");
vorbisenc->headers = g_slist_prepend (vorbisenc->headers, buf3);
vorbisenc->headers = g_slist_prepend (vorbisenc->headers, buf2);
vorbisenc->headers = g_slist_prepend (vorbisenc->headers, buf1);
vorbisenc->header_sent = TRUE;
}
@ -785,18 +788,6 @@ gst_vorbis_enc_handle_frame (GstAudioEncoder * enc, GstBuffer * buffer)
ret = gst_vorbis_enc_output_buffers (vorbisenc);
return ret;
/* error cases */
failed_header_push:
{
GST_WARNING_OBJECT (vorbisenc, "Failed to push headers");
/* buf1 is always already unreffed */
if (buf2)
gst_buffer_unref (buf2);
if (buf3)
gst_buffer_unref (buf3);
return ret;
}
}
static GstFlowReturn
@ -836,6 +827,36 @@ gst_vorbis_enc_output_buffers (GstVorbisEnc * vorbisenc)
return GST_FLOW_OK;
}
static GstFlowReturn
gst_vorbis_enc_pre_push (GstAudioEncoder * enc, GstBuffer ** buffer)
{
GstVorbisEnc *vorbisenc;
GstFlowReturn ret = GST_FLOW_OK;
vorbisenc = GST_VORBISENC (enc);
/* FIXME 0.11 ? get rid of this special ogg stuff and have it
* put and use 'codec data' in caps like anything else,
* with all the usual out-of-band advantage etc */
if (G_UNLIKELY (vorbisenc->headers)) {
GSList *header = vorbisenc->headers;
/* try to push all of these, if we lose one, might as well lose all */
while (header) {
if (ret == GST_FLOW_OK)
ret = gst_vorbis_enc_push_header (vorbisenc, header->data);
else
gst_vorbis_enc_push_header (vorbisenc, header->data);
header = g_slist_next (header);
}
g_slist_free (vorbisenc->headers);
vorbisenc->headers = NULL;
}
return ret;
}
static void
gst_vorbis_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)

1
ext/vorbis/gstvorbisenc.h
View file

@ -81,6 +81,7 @@ struct _GstVorbisEnc {
gboolean setup;
gboolean header_sent;
gchar *last_message;
GSList *headers;
};
struct _GstVorbisEncClass {