Displaying 9 results from an estimated 9 matches for "oc_cs_unspecifi".
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oc_cs_unspecified
2005 Feb 09
1
Trying to do windows encoding dll
...itrate)
{
ogg_stream_init(&enc_stream, 290482);
enc_width = width;
enc_height = height;
theora_info ti;
theora_info_init(&ti);
ti.width=width;
ti.height=height;
// must be /16
ti.frame_width=width;
ti.frame_height=height;
ti.offset_x=0;
ti.offset_y=0;
ti.colorspace=OC_CS_UNSPECIFIED;
ti.target_bitrate=bitrate;
ti.dropframes_p=0;
ti.quick_p=1;
ti.keyframe_auto_p=1;
ti.keyframe_frequency=64;
ti.keyframe_frequency_force=64;
ti.keyframe_data_target_bitrate=bitrate*1.5;
ti.keyframe_auto_threshold=80;
ti.keyframe_mindistance=8;
ti.noise_sensitivity=1;
theor...
2004 Oct 02
2
Theora decode problem
...ight=144;
m_ti.frame_width=176;
m_ti.frame_height=144;
m_ti.offset_x=0;
m_ti.offset_y=0;
m_ti.fps_denominator=(ogg_uint32_t)1000000.0;
m_ti.fps_numerator=10 * m_ti.fps_denominator; //10 is 10
frames per second
m_ti.aspect_numerator=1;
m_ti.aspect_denominator=1;
m_ti.colorspace=OC_CS_UNSPECIFIED;
m_ti.target_bitrate=0; // 0 if we are specifying
quality
m_ti.quality=5; // from 0 to 10, 10 is highest
quality but higher files
m_ti.dropframes_p=0;
m_ti.quick_p=1; // should always be 1
m_ti.keyframe_auto_p=1;
m_ti.keyframe_frequency=64;
m_ti.keyframe_frequency_force=64;...
2005 Nov 03
1
CPU usage while encoding...
...e ( compared to FFmpeg - MP4 ) ...
Perhaps I'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_f...
2006 Oct 04
3
Encoding - CPU usage ...
...tips to reduce the CPU usage.
- Hardware... do you think there are 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;...
2005 Sep 07
1
encoder settings
...et;
videostream->ti.offset_y = frame_y_offset;
videostream->ti.fps_numerator = refreshrate * 1000000;
videostream->ti.fps_denominator = 10 * 100000;
videostream->ti.aspect_numerator = 0;
videostream->ti.aspect_denominator = 0;
videostream->ti.colorspace = OC_CS_UNSPECIFIED;
videostream->ti.target_bitrate = video_r;
videostream->ti.quality = 1;
videostream->ti.dropframes_p = 0;
videostream->ti.quick_p = 1;
videostream->ti.keyframe_auto_p = 1;
videostream->ti.keyframe_frequency = 16;
videostream->ti.keyframe_frequency...
2005 Oct 05
1
Simple encodig sample...
...= frame_y;
ti.offset_x = frame_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.keyf...
2009 Jul 08
2
Theora 1.1 rate controller
Hello everyone,
I'm currently developing an adaptive videoconferencing application based on
Ekiga which uses TFRC as a congestion control mechanism to adapt the video
encoding rate according to the quality of the network experienced. My goal
was to use the open-source Theora codec for video transmission.
Unfortunately, it seemed that Theora 1.0 did not properly implement any
correct CBR mode.
2006 Oct 06
0
V4L + Theora small app...
...heoraInfo.offset_y = iFrameOffsetY;
tTheoraInfo.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...
2004 Nov 20
0
ffmpeg2theora start and end time support
...ial with fps==25 OC_CS_ITU_REC_470BG?
// guess not, commandline option to select colorspace would be the best.
if(this->fps==25)
info.ti.colorspace = OC_CS_ITU_REC_470BG;
else if(abs(this->fps-30)<1)
info.ti.colorspace = OC_CS_ITU_REC_470M;
else
info.ti.colorspace = OC_CS_UNSPECIFIED;
//FIXME: allow target_bitrate as an alternative mode
//only use quality mode for now.
//info.ti.target_bitrate=1200;
info.ti.quality = this->video_quality;
info.ti.dropframes_p = 0;
info.ti.quick_p = 1;
info.ti.keyframe_auto_p = 1;
info.ti.keyframe_frequency = 64;...