diff options
Diffstat (limited to 'gst-libs/gst/play/play.c')
| -rw-r--r-- | gst-libs/gst/play/play.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gst-libs/gst/play/play.c b/gst-libs/gst/play/play.c index 081af994..f46fbabc 100644 --- a/gst-libs/gst/play/play.c +++ b/gst-libs/gst/play/play.c @@ -67,6 +67,9 @@ static GstPipelineClass *parent_class = NULL; /* */ /* ======================================================= */ +static GstCaps * gst_play_video_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data); +static GstCaps * gst_play_audio_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data); + static GQuark gst_play_error_quark (void) { @@ -275,6 +278,8 @@ gst_play_pipeline_setup (GstPlay *play, GError **error) /* Software scaling of video stream */ GST_PLAY_MAKE_OR_ERROR (video_scaler, "videoscale", "video_scaler", error); g_hash_table_insert (play->priv->elements, "video_scaler", video_scaler); + g_signal_connect (gst_element_get_pad(video_scaler, "src"), "fixate", + G_CALLBACK (gst_play_video_fixate), play); /* Placeholder for future video sink bin */ GST_PLAY_MAKE_OR_ERROR (video_sink, "fakesink", "video_sink", error); @@ -315,6 +320,8 @@ gst_play_pipeline_setup (GstPlay *play, GError **error) /* Volume control */ GST_PLAY_MAKE_OR_ERROR (volume, "volume", "volume", error); g_hash_table_insert (play->priv->elements, "volume", volume); + g_signal_connect (gst_element_get_pad(volume, "src"), "fixate", + G_CALLBACK (gst_play_audio_fixate), play); /* Placeholder for future audio sink bin */ GST_PLAY_MAKE_OR_ERROR (audio_sink, "fakesink", "audio_sink", error); @@ -434,6 +441,65 @@ gst_play_get_length_callback (GstPlay *play) return TRUE; } +static GstCaps * +gst_play_video_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data) +{ + GstStructure *structure; + GstCaps *newcaps; + + GST_DEBUG ("video fixate %p %" GST_PTR_FORMAT, pad, caps); + + if (gst_caps_get_size (caps) > 1) return NULL; + + newcaps = gst_caps_copy (caps); + structure = gst_caps_get_structure (newcaps, 0); + + if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 320)) { + return newcaps; + } + if (gst_caps_structure_fixate_field_nearest_int (structure, "height", 240)) { + return newcaps; + } + if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate", + 30.0)) { + return newcaps; + } + + /* failed to fixate */ + gst_caps_free (newcaps); + return NULL; +} + +static GstCaps * +gst_play_audio_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data) +{ + GstCaps *newcaps; + GstStructure *structure; + + GST_DEBUG ("audio fixate %p %" GST_PTR_FORMAT, pad, caps); + + newcaps = gst_caps_new_full (gst_structure_copy ( + gst_caps_get_structure (caps, 0)), NULL); + structure = gst_caps_get_structure (newcaps, 0); + + if (gst_caps_structure_fixate_field_nearest_int (structure, "rate", 44100)) { + return newcaps; + } + if (gst_caps_structure_fixate_field_nearest_int (structure, "depth", 16)) { + return newcaps; + } + if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 16)) { + return newcaps; + } + if (gst_caps_structure_fixate_field_nearest_int (structure, "channels", 2)) { + return newcaps; + } + + gst_caps_free (newcaps); + + return NULL; +} + static void gst_play_state_change (GstElement *element, GstElementState old, GstElementState state) |