Cannot encode stream using x264enc

[Matt Veenstra]

Try putting in a "queue" after "theoradec".  All of my pipelines do
that.  Not sure if this is a requirement and would cause this error or
not.

If your source has audio you might need to deal with this stream as
well.  I forget the details when not using "gnolin".  So something
like this...
gst-launch filesrc location="c:\\video(low_res).ogg" ! oggdemux name="demux"
.demux ! theoradec ! ffmpegcolorspace ! x264enc ! qtmux name="mux" !
filesink location="c:\\video(blah).mp4
.demux ! vorbisdec ! audioconvert ! faac ! .mux

Cheers,
Matt

On Tue, Jun 7, 2011 at 11:42 AM, William Metcalf <wmetcalf at niftytv.com> wrote:
> Running with videoparse did not solve the problem.  When I run it with the
> -v option, I get the following output.
>
> C:\Users\wmetcalf>gst-launch -v filesrc location="c:\\video(low_res).ogg" !
> oggdemux ! theoradec ! ffmpegcolorspace ! x264enc ! qtmux ! filesink
> location="c:\\video(blah).mp4
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstTheoraDec:theoradec0.GstPad:sink: caps =
> video/x-theora, width=(int)720, height=(int)400, framerate=(fraction)25/1,
> pixel-aspect-ratio=(fraction)1/1
> /GstPipeline:pipeline0/GstTheoraDec:theoradec0.GstPad:src: caps =
> video/x-raw-yuv, format=(fourcc)I420, framerate=(fraction)25/1,
> pixel-aspect-ratio=(fraction)1/1, width=(int)720, height=(int)400
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps =
> video/x-raw-yuv, format=(fourcc)I420, framerate=(fraction)25/1,
> pixel-aspect-ratio=(fraction)1/1, width=(int)720, height=(int)400
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps =
> video/x-raw-yuv, format=(fourcc)I420, framerate=(fraction)25/1,
> pixel-aspect-ratio=(fraction)1/1, width=(int)720, height=(int)400
> ERROR: from element /GstPipeline:pipeline0/GstX264Enc:x264enc0: Could not
> encode stream.
> Additional debug info:
> ..\..\..\..\..\Source\gst-plugins-ugly\ext\x264\gstx264enc.c(737):
> gst_x264_enc_header_buf (): /GstPipeline:pipeline0/GstX264Enc:x264enc0:
> Unexpected x264 header.
> ERROR: pipeline doesn't want to preroll.
> /GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:src: caps = video/x-h264,
> width=(int)720, height=(int)400, framerate=(fraction)25/1,
> stream-format=(string)avc
> /GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:sink: caps =
> video/x-raw-yuv, format=(fourcc)I420, framerate=(fraction)25/1,
> pixel-aspect-ratio=(fraction)1/1, width=(int)720, height=(int)400
> Setting pipeline to NULL ...
> /GstPipeline:pipeline0/GstQTMux:qtmux0.GstPad:src: caps = NULL
> /GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:src: caps = NULL
> /GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:sink: caps = NULL
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = NULL
> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = NULL
> /GstPipeline:pipeline0/GstTheoraDec:theoradec0.GstPad:src: caps = NULL
> /GstPipeline:pipeline0/GstTheoraDec:theoradec0.GstPad:sink: caps = NULL
> /GstPipeline:pipeline0/GstOggDemux:oggdemux0.GstOggPad:serial_0dcdfd30: caps
> = NULL
> /GstPipeline:pipeline0/GstOggDemux:oggdemux0.GstOggPad:serial_6c22f681: caps
> = NULL
> Freeing pipeline ...
>
>
> It seems to me like the caps are correct to my understanding.  The sink of
> the decoder is theora, and it outputs raw.  FFMPCS takes in raw and ouputs
> raw, and x264enc takes in raw and outputs h264.  Can you see something else
> that is wrong or is my understanding incorrect?
>
> Thank you,
> William
>
> On 6/7/2011 1:31 PM, sudarshan bisht wrote:
>
> You can try using videoparse before x264enc. And use -v option with
> gst-launch to get some caps related logs.
>
>
> On Tue, Jun 7, 2011 at 6:33 PM, William Metcalf <wmetcalf at niftytv.com>
> wrote:
>>
>> I have a pipeline I am using to convert an .ogg file to an .mp4.  I am
>> currently using ffenc_mpeg4 to encode the video, and this encoder sets the
>> video format as .mp4v.  I need my video to be encoded as AVC so I am trying
>> to use x264enc instead.  However every time I try to use x264enc, I get the
>> error "failed to encode stream".  Below is a sample pipeline I am using in
>> my converter.  Can any one tell my why x264enc is failing to encode the
>> stream?  Thank you in advance.
>>
>> gst-launch filesrc location="c:\\video(low_res).ogg" ! oggdemux !
>> theoradec ! ffmpegcolorspace ! x264enc ! qtmux ! filesink
>> location="c:\\video(blah).mp4
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
>
> --
> Regards,
>
> Sudarshan Bisht
>
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