Displaying 7 results from an estimated 7 matches for "oc_pf_420".
2007 Oct 31
1
etheora
...mp;ec);
/*getting frame data, by reading a r,g,b or y,u,v pixel in (i,j) coordinate*/
etheora_dec_rgb_read(&ec, i, j, &r, &g, &b) (alternative:
etheora_dec_yuv_read()),
/* finishing the process.*/
etheora_dec_finish(&ec);
the functions _yuv_ and _rgb_ works transparently with OC_PF_420,
OC_PF_422 and OC_PF_PF_444, having the libtheora version used support
for them or not.
Etheora is documented here:
http://opensvn.csie.org/ribamar/projects/streaming/doc/etheora_documentation.pdf
Etheora code is here:
http://opensvn.csie.org/ribamar/projects/streaming/src/ {etheora is
etheora.c...
2005 Nov 03
1
CPU usage while encoding...
...m using wrong parameters:
ti.fps_numerator = fps * 11 + 1; // var framerate
ti.fps_denominator = 11;
ti.aspect_numerator = 1;
ti.aspect_denominator = 1;
ti.colorspace = OC_CS_ITU_REC_470BG; // OC_CS_UNSPECIFIED;
ti.pixelformat = OC_PF_420;
ti.target_bitrate = 0;
ti.quality = 1 * 6.3;
ti.dropframes_p = 0;
ti.quick_p = 1;
ti.keyframe_auto_p = 1;
ti.keyframe_frequency = 64;
ti.keyframe_frequency_force = 64;
ti.keyframe_da...
2006 Nov 09
1
[Doc] theora_encode_init problem
Hello,
I recently decided to develop a client-server visio-conference app for
windows using libtheora for network communication.
But I have a problem initialising the theora encoder :
theora_encode_init() returns -23 and I would like to know what it means
all I could find in the doc is that it should return 0 in case of success.
I understand my call to theora_encode_init() failed, but i'd
2007 Oct 31
1
etheora
...mp;ec);
/*getting frame data, by reading a r,g,b or y,u,v pixel in (i,j) coordinate*/
etheora_dec_rgb_read(&ec, i, j, &r, &g, &b) (alternative:
etheora_dec_yuv_read()),
/* finishing the process.*/
etheora_dec_finish(&ec);
the functions _yuv_ and _rgb_ works transparently with OC_PF_420,
OC_PF_422 and OC_PF_PF_444, having the libtheora version used support
for them or not.
Etheora is documented here:
http://opensvn.csie.org/ribamar/projects/streaming/doc/etheora_documentation.pdf
Etheora code is here:
http://opensvn.csie.org/ribamar/projects/streaming/src/ {etheora is
etheora.c...
2006 Oct 04
3
Encoding - CPU usage ...
...better CPUs for Theora? AMD64?
- CPU optimisations... they are enabled by default, right?
- Encoding parameters... now I use:
...
theora_info tTheoraInfo;
tTheoraInfo.colorspace = OC_CS_ITU_REC_470BG; /*
OC_CS_UNSPECIFIED ? */
tTheoraInfo.pixelformat = OC_PF_420;
tTheoraInfo.target_bitrate = 0;
tTheoraInfo.quality = 15;
tTheoraInfo.dropframes_p = 0;
tTheoraInfo.quick_p = 1;
tTheoraInfo.keyframe_auto_p = 1;
tTheoraInfo.keyframe_frequency = 64;
tTheora...
2005 Oct 05
1
Simple encodig sample...
...me_x_offset;
ti.offset_y = frame_y_offset;
ti.fps_numerator = video_hzn;
ti.fps_denominator = video_hzd;
ti.aspect_numerator = video_an;
ti.aspect_denominator = video_ad;
ti.colorspace = OC_CS_UNSPECIFIED;
ti.pixelformat = OC_PF_420;
ti.target_bitrate = video_r;
ti.quality = video_q;
ti.dropframes_p = 0;
ti.quick_p = 1;
ti.keyframe_auto_p = 1;
ti.keyframe_frequency = 64;
ti.keyframe_frequency_force = 64;
ti.keyfr...
2006 Oct 06
0
V4L + Theora small app...
...raInfo.fps_numerator = iVideoFPSnum;
tTheoraInfo.fps_denominator = iVideoFPSden;
tTheoraInfo.aspect_numerator = iVideoAspNum;
tTheoraInfo.aspect_denominator = iVideoAspDen;
tTheoraInfo.colorspace = OC_CS_UNSPECIFIED;
tTheoraInfo.pixelformat = OC_PF_420;
tTheoraInfo.target_bitrate = iVideoBitrate;
tTheoraInfo.quality = iVideoQuality;
tTheoraInfo.dropframes_p = 0;
tTheoraInfo.quick_p = 1;
tTheoraInfo.keyframe_auto_p = 1;
tTheoraInfo.keyframe_frequency...