search for: theora_encode_init

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 like to know why... where can i find such a documentation (i'm using libtheora 1.0alpha7) thanks --...

...sting. The test passes, but gives output like: make[1]: Entering directory `/home/conrad/src/xiph.org/theora/tests' ---- + Initializing theora_info struct ... ---- + Allocating encoder context ... ==15878== Conditional jump or move depends on uninitialised value(s) ==15878== at 0x4032485: theora_encode_init (in /home/conrad/src/xiph.org/theora/lib/.libs/libtheoraenc.so.1.0.0) ==15878== ==15878== Conditional jump or move depends on uninitialised value(s) ==15878== at 0x40324C0: theora_encode_init (in /home/conrad/src/xiph.org/theora/lib/.libs/libtheoraenc.so.1.0.0) ---- + Clearing theora_info struc...

...e (or target video qiality) during a live stream without a standard theora decoder having any problems. I had assumed that this must be possible, given that Theora is defined as a variable bit rate codec, although in libtheora, it wouldn't be, as the bitrate / video quality has to be passed to theora_encode_init, which you'd only call before the encode started (unless it's possible to call this afterwards to change parameters?) The conclusion I'm reaching is that the answer is yes, it's possible, but only with a modified theora encoder, but I'd be very grateful if somebody in-the-know...

...s before a block of size 8,100 alloc'd ==12051== at 0x4C2260E: malloc (vg_replace_malloc.c:207) ==12051== by 0x64E64C9: InitFragmentInfo (in /usr/local/lib/libtheora.so.0.3.4) ==12051== by 0x64E6722: InitFrameDetails (in /usr/local/lib/libtheora.so.0.3.4) ==12051== by 0x64D9F2E: theora_encode_init (in /usr/local/lib/libtheora.so.0.3.4) ==12051== by 0x762874: (within /home/pub/apps/ffmpeg_dev/ffmpeg_svn/ffmpeg) ==12051== by 0x4E38FE: avcodec_open (in /home/pub/apps/ffmpeg_dev/ffmpeg_svn/ffmpeg) ==12051== by 0x4292DB: (within /home/pub/apps/ffmpeg_dev/ffmpeg_svn/ffmpeg) ==12051==...

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.

Well, as you may have seen from my previous messages, I'm doing a webcam stream program. The encoder is working well right now, but I'm having some hard time with the decoder. I know the parameters used in the encoder, and they are not gonna change, so I want to init the encoder directly into the client. The problem is that if I give the values to theora_info and after that I call

I found a bug in theora_decode_init when I was implementing the decoder. theora_decode_init should be zeroing the theora state structure right? memset(th, 0, sizeof(theora_state)); // Erik -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora-dev/attachments/20040805/26350ca4/attachment.htm

...ny way to force the creation of a keyframe when encoding? > > Poking around through the archive it looks like I might be able to do > this by setting 'keyframe_frequency_force' to '1' for a frame and then > setting it back. But to do this would I need to call > 'theora_encode_init' again? Is this safe? > > Basically, what's the best way to arbitrarily force the creation of a > keyframe within an encoding session? Calling it again (with a corresponding theora_clear first) would be okay, except that it also resets the granule positions applied to the packet...

...ECIFIED; 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; theora_encode_init(&enc_state,&ti); theora_info_clear(&ti); } __declspec (dllexport) encode(signed char *yuvframe, ogg_page *op) { while (ogg_stream_pageout(&enc_stream, op) == 0) { yuv_buffer yuv_enc; yuv_enc.y_width=enc_width; yuv_enc.y_height=enc_height; yuv_enc.y_stride=enc...

...ruct ... ==9720== ==9720== 256 bytes in 1 blocks are definitely lost in loss record 1 of 1 ==9720== at 0x1B90659D: malloc (vg_replace_malloc.c:130) ==9720== by 0x1B9357E4: oggpack_writeinit (bitwise.c:41) ==9720== by 0x1B93582E: oggpackB_writeinit (bitwise.c:47) ==9720== by 0x1B9213CE: theora_encode_init (encoder_toplevel.c:845) ==9720== by 0x8048735: noop_test_encode (noop.c:15) ==9720== by 0x804886D: main (noop.c:62) PASS: noop ---- + Initializing theora_comment ... ---- + Adding ARTIST1 ... ---- + Adding LICENSE by tag ... ---- + Adding ARTIST2 by tag ... ---- + Querying value of LICE...

...ck_p=1; // should always be 1 m_ti.keyframe_auto_p=1; m_ti.keyframe_frequency=64; m_ti.keyframe_frequency_force=64; m_ti.keyframe_data_target_bitrate=(ogg_uint32_t)(m_ti.target_bitrate*1.5 ); m_ti.keyframe_auto_threshold=80; m_ti.keyframe_mindistance=8; m_ti.noise_sensitivity=1; theora_encode_init(&m_td,&m_ti); theora_info_clear(&m_ti); Here is my decrypt init. Since I can join the stream of theora packets (enclosed in ogg packets) at any time, I don't get headers, but I know what format I'm sending them in anyway since I'm the one sending them in the first place....

...80497F4: main (test3.c:281) ==2782== Address 0x1CEC27A7 is 1 bytes before a block of size 8448 alloc'd ==2782== at 0x1B90459D: malloc (vg_replace_malloc.c:130) ==2782== by 0x1B945908: PInitFrameInfo (pp.c:139) ==2782== by 0x1B94979A: ScanYUVInit (scan.c:296) ==2782== by 0x1B95159B: theora_encode_init (encoder_toplevel.c:884) ==2782== by 0x804947F: main (test3.c:220) ( repeated many times ) ... I noticed some things: - if I encode images programmatically generated (like in the last app I posted here in the ML...) my debugger says it's all ok (no errors) - if I grab a simple image ( I pu...

...; + info->video_bytesout = 0; /* yayness. Set up Ogg output stream */ srand (time (NULL)); - ogg_stream_init (&info.vo, rand ()); + ogg_stream_init (&info->vo, rand ()); - if(!info.audio_only){ - ogg_stream_init (&info.to, rand ()); /* oops, add one ot the above */ - theora_encode_init (&info.td, &info.ti); - theora_info_clear (&info.ti); + if(!info->audio_only){ + ogg_stream_init (&info->to, rand ()); /* oops, add one ot the above */ + theora_encode_init (&info->td, &info->ti); + theora_info_clear (&info->ti); } /* init theora d...

...keyframe_auto_p = 1; ti.keyframe_frequency = 64; ti.keyframe_frequency_force = 64; ti.keyframe_data_target_bitrate = video_r * 1.5; ti.keyframe_auto_threshold = 80; ti.keyframe_mindistance = 8; ti.noise_sensitivity = 1; theora_encode_init( &td, &ti ); theora_info_clear( &ti ); /* write the bitstream header packets with proper page interleave */ /* first packet will get its own page automatically */ theora_encode_header( &td, &op ); ogg_stream_packetin( &to, &op ); if( ogg_stream_pageout(...

...o.noise_sensitivity ); pfOGGclip = fopen( szFilename, "wb" ); if( pfOGGclip == NULL ) { perror( "### fopen()" ); iRet = -1; goto OGG_OpenClip_quit; } ogg_stream_init( &tOGGstreamState, rand() ); /* need a random number */ theora_encode_init( &tTheoraState, &tTheoraInfo ); theora_info_clear( &tTheoraInfo ); /* first packet will get its own page automatically */ theora_encode_header( &tTheoraState, &tOGGpacket ); ogg_stream_packetin( &tOGGstreamState, &tOGGpacket ); if( ogg_stream_pageout( &a...