search for: pix_fmt

...nd; int frame_bottomBand; int frame_leftBand; int frame_rightBand; int video_x; int video_y; int frame_x_offset; int frame_y_offset; int start_time; /* In seconds */ int end_time; /* In seconds */ } *ff2theora; /** * Allocate and initialise an AVFrame. */ AVFrame *alloc_picture (int pix_fmt, int width, int height){ AVFrame *picture; uint8_t *picture_buf; int size; picture = avcodec_alloc_frame (); if (!picture) return NULL; size = avpicture_get_size (pix_fmt, width, height); picture_buf = av_malloc (size); if (!picture_buf){ av_free (picture); return NULL; } avpicture...

...; SwfdecBuffer * @@ -221,12 +223,19 @@ swfdec_video_decoder_ffmpeg_decode (Swfd SWFDEC_WARNING ("error decoding frame"); return NULL; } + if (codec->sws == NULL) { + codec->sws = sws_getContext (codec->ctx->width, codec->ctx->height, codec->ctx->pix_fmt, + codec->ctx->width, codec->ctx->height, PIX_FMT_RGB32, 0, NULL, NULL, NULL); + if (codec->sws == NULL) { + SWFDEC_ERROR ("Could not get conversion context"); + return NULL; + } + } ret = swfdec_buffer_new_and_alloc (codec->ctx->width * codec->...

I am using theora_encode along with ffmpeg: ffmpeg -an -s 1920x1080 -r 24 -i bigbuckbunny.mp4 -vcodec rawvideo \ -pix_fmt yuv420p -f rawvideo - 2>/dev/null \ | ffmpeg -an -f rawvideo -s 1920x1080 -r 24 -i - -f yuv4mpegpipe - 2>/dev/null \ |* theora_encode /dev/stdin 2>/dev/null *| ffmpeg -y -f ogg -i - \ -f mp4 -i bigbuckbunny.mp4 -map 0:0 -map 1:1 -vcodec copy \ -acodec libvorbis -ab 256000 -f ogg bigbuckbun...

...owser doesn't support the <video> tag. The URL is here: http://media.basilgohar.com/stream/ There's been a lot of talk about live streaming and low bitrate streams. Here is my command line (I've posted this before): time ffmpeg -f video4linux2 -s 640x480 -r 15 -i /dev/video0 -pix_fmt yuv420p -f yuv4mpegpipe - 2>/dev/null | ~/packages/theora/examples/encoder_example --video-rate-target 150 --soft-target - | tee /home/basil.gohar/Videos/webcam-capture-`date +%F-%T`.ogv | oggfwd -d 'Live webcam view of me at work' -g 'Webcam' -n 'Basil at work' aalimraan...

...DeviceContext @ 0xaef7d00] Format 0x58424752 -> rgb0. [AVHWDeviceContext @ 0xaef7d00] VAAPI driver: Mesa Gallium driver 19.2.0-devel for NV92. [AVHWDeviceContext @ 0xaef7d00] Driver not found in known nonstandard list, using standard behaviour. [skip] [Parsed_format_0 @ 0xaf4dcc0] Setting 'pix_fmts' to value 'nv12' [Parsed_scale_vaapi_2 @ 0xb005a40] Setting 'w' to value '240' [Parsed_scale_vaapi_2 @ 0xb005a40] Setting 'h' to value '120' [graph 0 input from stream 0:0 @ 0xb006300] Setting 'video_size' to value '1280x720' [graph 0 inp...

...*********:: ogv container test matrix:: ************************* :: Compress with libtheoraffmpeg2theora --optimize -v 8 -o sync.ogv sync.720x480_30Hz_P420.mov :: Mux all ogg video container variationsoggzmerge sync2.ogg sync.ogv -o sync2.ogv :: Compute PSNRffmpeg -y -i sync2.ogv -vcodec rawvideo -pix_fmt yuv420p sync_ogv.720x480_30Hz_P420.yuvpsnr -s 720 480 sync.720x480_30Hz_P420.yuv sync_ogv.720x480_30Hz_P420.yuv -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/ogg-dev/attachments/20090629/715f8cd8/attachment.htm

...; will not work + //as we donot increment frame_number in audio section. + frame_number++; //FIXME: better colorformat transformation to YUV420P /* might have to cast other progressive formats here */ //if(venc->pix_fmt != PIX_FMT_YUV420P){ @@ -644,6 +665,8 @@ "\t --audiobitrate,-A\t[45 to 2000] encoding bitrate for audio\n" "\t --samplerate,-H\tset output samplerate in Hz\n" "\t --nosound\t\tdisable the sound from input\n" + "\t --endtime,-e\t\tend encoding at this tim...

...!= codec->ctx->width || + codec->sws_height != codec->ctx->height)) { + sws_freeContext (codec->sws); + codec->sws = NULL; + } if (codec->sws == NULL) { codec->sws = sws_getContext (codec->ctx->width, codec->ctx->height, codec->ctx->pix_fmt, codec->ctx->width, codec->ctx->height, PIX_FMT_RGB32, 0, NULL, NULL, NULL); @@ -235,6 +256,8 @@ swfdec_video_decoder_ffmpeg_decode (Swfd SWFDEC_ERROR ("Could not get conversion context"); return NULL; } + codec->sws_width = codec->ctx->width;...

...nking of coupling --soft-target along with --video-quality to get a minimum video quality, which might be the key to what I am asking. Anyone else have some thoughts on this? For those that are interested, here are my command-line: > time ffmpeg -f video4linux2 -s 640x480 -r 15 -i /dev/video0 -pix_fmt > yuv420p -f yuv4mpegpipe - 2>/dev/null | > ~/packages/theora/examples/encoder_example --video-rate-target 150 > --soft-target - | tee /home/basil.gohar/Videos/webcam-capture-`date > +%Y%m%d`.ogv | oggfwd -d 'Live webcam view of me at work' -g 'Webcam' > -n 'Ba...

...; SwfdecBuffer * @@ -221,12 +223,19 @@ swfdec_video_decoder_ffmpeg_decode (Swfd SWFDEC_WARNING ("error decoding frame"); return NULL; } + if (codec->sws == NULL) { + codec->sws = sws_getContext (codec->ctx->width, codec->ctx->height, codec->ctx->pix_fmt, + codec->ctx->width, codec->ctx->height, PIX_FMT_RGB32, 0, NULL, NULL, NULL); + if (codec->sws == NULL) { + SWFDEC_ERROR ("Could not get conversion context"); + return NULL; + } + } ret = swfdec_buffer_new_and_alloc (codec->ctx->width * codec->...

...ight, guint *rowstride) { - SwfdecCodecFFMpegVideo *codec = codec_data; + SwfdecVideoDecoderFFMpeg *codec = (SwfdecVideoDecoderFFMpeg *) dec; int got_image; SwfdecBuffer *ret; AVPicture picture; @@ -270,23 +227,50 @@ swfdec_codec_ffmpeg_video_decode (gpoint img_convert (&picture, PIX_FMT_RGB32, (AVPicture *) codec->frame, codec->ctx->pix_fmt, codec->ctx->width, codec->ctx->height); + *width = codec->ctx->width; + *height = codec->ctx->height; + *rowstride = codec->ctx->width * 4; return ret; } static void -swfdec_codec...

...frame"); return NULL; } + if (got_image == 0) { + SWFDEC_WARNING ("error: did not get an image from decoding"); + return NULL; + } if (codec->sws == NULL) { codec->sws = sws_getContext (codec->ctx->width, codec->ctx->height, codec->ctx->pix_fmt, codec->ctx->width, codec->ctx->height, PIX_FMT_RGB32, 0, NULL, NULL, NULL); diff-tree d4d5dde0824487576861912640d9bdd0d0565af7 (from 72794f6dd88161fe9e36b11b5e6d3cd9cf86099f) Author: Benjamin Otte <otte at gnome.org> Date: Thu Aug 23 21:56:29 2007 +0200 end when there...