[gst-devel] Need help for rezising video.

[Rohit Atri]

Sorry typo - change the caps string to suit your needs.

On Wed, Jan 5, 2011 at 9:34 AM, Rohit Atri <rohitratri at gmail.com> wrote:

> @Nicolas
>
> You could use the capsfilter element like this as well -
>
> caps = gst_caps_new_simple ("video/x-raw-rgb",
>                             "bpp", G_TYPE_INT, 24,
>                             "depth", G_TYPE_INT, 24,
>                             NULL);
>
> gst_element_link_filtered(capsfilter, videosink, caps);  (Considering
> videoscale element is already linked to capsfilter on to its left.)
>
> instead of doing a gst_object_set()...
>
> Of course the choice between the 2 depends on your convenience.
>
> Rohti
>
>
>
> On Wed, Jan 5, 2011 at 12:48 AM, Timothy Braun <braunsquared at gmail.com>wrote:
>
>> The capsfilter isn't going to do anything for you unless something in the
>> pipeline is able to make the needed changes to match the caps.  Before the
>> capsfilter you should add a videoscale element so it is able to match the
>> requested caps of the filter.  You may also want to take a gander at the
>> ffmpeg_colorspace and videorate elements as well.
>>
>> As a side note:
>> You can simplify the creation of the caps with the gst_caps_from_string(
>> "video/x-raw-yuv, format=I420, width=800, height=600") call.
>> You need to unref the caps when you're done with it as well.
>>
>> Just my 2c.
>>
>> Best,
>> Tim
>>
>> On Tue, Jan 4, 2011 at 2:02 PM, Nicolas <c.r.n.a at wanadoo.fr> wrote:
>>
>>> Hi,
>>>
>>> Thanks for your reply.
>>>
>>> Ok, i do:
>>>
>>> pipeline = gst_pipeline_new ("pipeline");
>>> playbin = gst_element_factory_make ("playbin2", "playbin");
>>>
>>> // Filter
>>> filter = gst_element_factory_make ("capsfilter", "filter");
>>> caps = gst_caps_new_simple ("video/x-raw-yuv", "format",
>>> GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'), "width",
>>> G_TYPE_INT, 800, "height", G_TYPE_INT, 600, NULL);
>>> g_object_set ((GObject*) filter, "caps", caps, NULL);
>>>
>>> // My sink
>>> sink = gst_element_factory_make ("evasvideosink", "sink");
>>> g_object_set ((GObject*) playbin, "video-sink", sink, NULL); // Tell to
>>> playbin2 to use my sink
>>> g_object_set ((GObject*) playbin, "uri", argv[1], NULL);
>>> g_object_set ((GObject*) sink, "evas-object", video, NULL); // Tell my
>>> sink to use evas image
>>>
>>> gst_bin_add_many (GST_BIN (pipeline), playbin, filter, NULL);
>>>
>>> gst_element_set_state (pipeline, GST_STATE_PLAYING);
>>>
>>> It does not change the size of the video, is this the correct way ?
>>>
>>> Thanks in advance for your reply,
>>> Nicolas.
>>>
>>>
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>>
>>
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>
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