[gst-devel] how to learn from .yuv files and encode with h.264?

[Marco Ballesio]

mmhh.. md5 from:
http://gstreamer-devel.966125.n4.nabble.com/how-to-learn-from-yuv-files-and-encode-with-h-264-td3017365.html#a3017365

is different. Attaching the sources directly.

Regards

On Sun, Oct 31, 2010 at 10:33 PM, Marco Ballesio <gibrovacco at gmail.com>wrote:

> Hi,
>
> it appears the app you sent is actually more complex than what you need..
> btw, some functions are not accessible from the code snippet you sent.
>
> I found some soare time to write a minimalistic send/receive couple of
> applications, the first one reading from a yuv file generated with:
>
> gst-launch -v videotestsrc num-buffers=2000 ! "video/x-raw-yuv, width=320,
> height=240, format=(fourcc)I420" ! filesink location=test.yuv
>
> and streaming to an address specified from command line. The second app
> opens a connection and renders all the h264 frames it receives from it.
> Hopefully it will give you an idea about how to get your app working.
>
> P.S. added back the gst-devel mailing list to the loop.
> P.P.S hopefully the attachment will make its way through the moderation.
>
> Regards
>
>
> On Fri, Oct 29, 2010 at 4:57 PM, Rafael Sousa <rafael.lmsousa at gmail.com>wrote:
>
>> Hi Gibro,
>>
>> As I said, I'm a newbie in this list, and I don't know exactly how to fix
>> the issues in my code, so, I'll send to you my whole code to you. If you may
>> take a look I'd be be very gratefull for your help.
>>
>> regards
>>
>>
>> On Fri, Oct 29, 2010 at 2:05 AM, Gibro Vacco <gibrovacco at gmail.com>wrote:
>>
>>>  Hi,
>>>
>>> it appears the sources you attached to the message did not go through the
>>> moderation.. btw a few comments below.
>>>
>>> ..snip..
>>>
>>> > *//Possible problem*
>>> > * **size = 352*288*(3/2);*
>>> > * **buffer = gst_buffer_try_new_and_alloc (size);*
>>>
>>> is there a particular reason for allocating this from the application?
>>> The pipeline is usually handling buffer allocation/release automagically.
>>>
>>> > * **if (buffer==NULL){*
>>> > * **  g_printerr("failed to allocate memory\n");*
>>> > * **}*
>>> > *//Possible problem *
>>> > * **gst_buffer_set_caps (buffer,caps);*
>>> >  *//Set up the video encoding parameters*
>>> > * **caps = gst_caps_new_simple ("video/x-raw-yuv",*
>>> > * **"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'),*
>>> > * **"width",  G_TYPE_INT, 352,*
>>> > * **"height", G_TYPE_INT, 288,*
>>> > * **"framerate", GST_TYPE_FRACTION, 25, 1, NULL);*
>>> > * **if ( !caps ) {*
>>> > * **g_printerr("Failed to create caps\n");*
>>> > * **return 0;*
>>> > * **}*
>>> >  err = gst_element_link_filtered(filesrc, time, caps);
>>>
>>> what is the time element? It's possible caps are not propagated to the
>>> encoder if not directly connected to the filesrc.
>>>
>>> Moreover, I didn't catch where you're setting the blocksize property in
>>> your filesrc to "size".
>>>
>>> ..Snip..
>>>
>>> > There is something wrong or missing in this function? How can I make
>>> > what I want to work?
>>>
>>> See my comments above ;)
>>>
>>> P.S. Maybe you could attach (or better copy to pastebin) the output when
>>> setting GST-DEBUG to 2 from the shell prior executing your binary.
>>>
>>> Regards
>>>
>>>
>>> >
>>> > Please, I need help.
>>> >
>>> > thanks for the previous answers and thanks in advance
>>>
>>>
>>
>
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