Re: [libav-user] D10/IMX Encoding Crash
2009/6/17 Baptiste Coudurier baptiste.coudur...@gmail.com Matthew Hallin wrote: 2009/6/17 Baptiste Coudurier baptiste.coudur...@gmail.com Hi, On 6/17/2009 9:09 AM, Matthew Hallin wrote: Here is the output from gdb Program received signal SIGSEGV, Segmentation fault. ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 2356s-y_dc_scale= s-y_dc_scale_table[ qscale ]; Current language: auto; currently c (gdb) backtrace #0 ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 #1 0x0814a385 in encode_thread (c=0xa511020, arg=0xa5114a4) at libavcodec/mpegvideo_enc.c:2060 #2 0x080dbbda in avcodec_default_execute (c=0xa511020, func=0x8149fd0 encode_thread, arg=0xa5114a4, ret=0x0, count=1, size=4) at libavcodec/utils.c:411 #3 0x081340bf in MPV_encode_picture (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, data=0xa559a90) at libavcodec/mpegvideo_enc.c:2923 #4 0x080dd790 in avcodec_encode_video (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, pict=0xa559a90) at libavcodec/utils.c:527 #5 0x0804a310 in main () at ffmpeg-test2.cpp:175 I tried to rebuild with --disable-optimizations with the hope that it may then show me the value of qscale but it would not build. One file needs -O1 because of register allocation failing, you should be able to compile it manually, yes it's annoying. Sorry for that. You can add also --enable-debug=gdb3 PS: please do not top-post on this mailing list. Thanks for your understanding. Thanks for your reply, but I am not sure I understand. I you saying that I need to compile a single file with -O1 option? If so which file? mpegvideo.c ? The one not compiling, I don't think it is mpegvideo.c but dsputil_mmx.c I will try it tomorrow and let you know. Ok. Thanks for you great help. I hope this is bottom posted! Yes, it is, thanks. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user Hello, I am afraid I need more help with this. I do not understand. Are you saying that a file did not compile or just that I need to recompile with different options? (or both?). How can I tell which file did not compile? make completed and the binaries were created so I assumed it was ok. How can I compile a specific file with -O1, I assume I will need all the other complier options used in a normal build. Can you give me the actual commands? Let me know Thanks Matt -- Gee Broadcast Systems Telephone: +44 1256 810123 Web: www.geebroadcast.co.uk ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user
Re: [libav-user] D10/IMX Encoding Crash
Hello, I did not call avcodec_get_context_defaults2 I am not familar with the function I will give it a try. Don't have gdb output as I am using Windows but will try it on a Linux machine and let you know Thanks Matt 2009/6/16 Baptiste Coudurier baptiste.coudur...@gmail.com Hi, On 6/16/2009 8:36 AM, Matthew Hallin wrote: I am new to ffmpeg and am trying to encode to MPEG2 D10 I am using revision 19203. I found the following on the web, and if I run it it creates the output file no problem. ffmpeg -i t:\temp\pal-YUY2.mov -vcodec mpeg2video -r 25 -pix_fmt yuv422p -minrate 5k -maxrate 5k -b 5k -intra -flags +ildct+low_delay -dc 10 -flags2 +ivlc+non_linear_q -ps 1 -qmin 1 -qmax 3 -top 1 -bufsize 200 -rc_init_occupancy 200 -rc_buf_aggressivity 0.25 -loglevel 48 -an t:\temp\output.m2v Trouble is when I do what I think is the same thing from my code it crashes when I call avcodec_encode_video My AVCodecContext parameters are below: pContext-bit_rate = 5000; pContext-time_base.num = 1; pContext-time_base.den = 25; pContext-width = 720; pContext-height = 576; pContext-gop_size = 0; pContext-pix_fmt = PIX_FMT_YUV422P; pContext-flags = CODEC_FLAG_LOW_DELAY | CODEC_FLAG_INTERLACED_DCT; pContext-flags2 = CODEC_FLAG2_INTRA_VLC | CODEC_FLAG2_NON_LINEAR_QUANT; pContext-qmax = 3; pContext-qmin = 1; pContext-rtp_payload_size = 1; pContext-rc_max_rate = pContext-bit_rate; pContext-rc_min_rate = pContext-bit_rate; pContext-intra_dc_precision = 10; pContext-rc_buffer_size = 200; pContext-rc_initial_buffer_occupancy = pContext-rc_buffer_size; I have set the log level to AV_LOG_DEBUG and see no errors in my calls to the previous av functions Any idea what I am doing wrong? Not really, did you call avcodec_get_context_defaults2 ? Otherwise if you can supply gdb output it would be easier to find out where the crash happens, if it happens in libavcodec. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user -- Gee Broadcast Systems Telephone: +44 1256 810123 Web: www.geebroadcast.co.uk ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user
Re: [libav-user] D10/IMX Encoding Crash
Here is the output from gdb Program received signal SIGSEGV, Segmentation fault. ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 2356s-y_dc_scale= s-y_dc_scale_table[ qscale ]; Current language: auto; currently c (gdb) backtrace #0 ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 #1 0x0814a385 in encode_thread (c=0xa511020, arg=0xa5114a4) at libavcodec/mpegvideo_enc.c:2060 #2 0x080dbbda in avcodec_default_execute (c=0xa511020, func=0x8149fd0 encode_thread, arg=0xa5114a4, ret=0x0, count=1, size=4) at libavcodec/utils.c:411 #3 0x081340bf in MPV_encode_picture (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, data=0xa559a90) at libavcodec/mpegvideo_enc.c:2923 #4 0x080dd790 in avcodec_encode_video (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, pict=0xa559a90) at libavcodec/utils.c:527 #5 0x0804a310 in main () at ffmpeg-test2.cpp:175 I tried to rebuild with --disable-optimizations with the hope that it may then show me the value of qscale but it would not build. Let me know what you think Thanks Matt 2009/6/16 Baptiste Coudurier baptiste.coudur...@gmail.com Hi, On 6/16/2009 8:36 AM, Matthew Hallin wrote: I am new to ffmpeg and am trying to encode to MPEG2 D10 I am using revision 19203. I found the following on the web, and if I run it it creates the output file no problem. ffmpeg -i t:\temp\pal-YUY2.mov -vcodec mpeg2video -r 25 -pix_fmt yuv422p -minrate 5k -maxrate 5k -b 5k -intra -flags +ildct+low_delay -dc 10 -flags2 +ivlc+non_linear_q -ps 1 -qmin 1 -qmax 3 -top 1 -bufsize 200 -rc_init_occupancy 200 -rc_buf_aggressivity 0.25 -loglevel 48 -an t:\temp\output.m2v Trouble is when I do what I think is the same thing from my code it crashes when I call avcodec_encode_video My AVCodecContext parameters are below: pContext-bit_rate = 5000; pContext-time_base.num = 1; pContext-time_base.den = 25; pContext-width = 720; pContext-height = 576; pContext-gop_size = 0; pContext-pix_fmt = PIX_FMT_YUV422P; pContext-flags = CODEC_FLAG_LOW_DELAY | CODEC_FLAG_INTERLACED_DCT; pContext-flags2 = CODEC_FLAG2_INTRA_VLC | CODEC_FLAG2_NON_LINEAR_QUANT; pContext-qmax = 3; pContext-qmin = 1; pContext-rtp_payload_size = 1; pContext-rc_max_rate = pContext-bit_rate; pContext-rc_min_rate = pContext-bit_rate; pContext-intra_dc_precision = 10; pContext-rc_buffer_size = 200; pContext-rc_initial_buffer_occupancy = pContext-rc_buffer_size; I have set the log level to AV_LOG_DEBUG and see no errors in my calls to the previous av functions Any idea what I am doing wrong? Not really, did you call avcodec_get_context_defaults2 ? Otherwise if you can supply gdb output it would be easier to find out where the crash happens, if it happens in libavcodec. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user -- Gee Broadcast Systems Telephone: +44 1256 810123 Web: www.geebroadcast.co.uk ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user
Re: [libav-user] D10/IMX Encoding Crash
Matthew Hallin wrote: 2009/6/17 Baptiste Coudurier baptiste.coudur...@gmail.com Hi, On 6/17/2009 9:09 AM, Matthew Hallin wrote: Here is the output from gdb Program received signal SIGSEGV, Segmentation fault. ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 2356s-y_dc_scale= s-y_dc_scale_table[ qscale ]; Current language: auto; currently c (gdb) backtrace #0 ff_set_qscale (s=0xa5113d0, qscale=value optimized out) at libavcodec/mpegvideo.c:2356 #1 0x0814a385 in encode_thread (c=0xa511020, arg=0xa5114a4) at libavcodec/mpegvideo_enc.c:2060 #2 0x080dbbda in avcodec_default_execute (c=0xa511020, func=0x8149fd0 encode_thread, arg=0xa5114a4, ret=0x0, count=1, size=4) at libavcodec/utils.c:411 #3 0x081340bf in MPV_encode_picture (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, data=0xa559a90) at libavcodec/mpegvideo_enc.c:2923 #4 0x080dd790 in avcodec_encode_video (avctx=0xa511020, buf=0xb7b04008 , buf_size=829440, pict=0xa559a90) at libavcodec/utils.c:527 #5 0x0804a310 in main () at ffmpeg-test2.cpp:175 I tried to rebuild with --disable-optimizations with the hope that it may then show me the value of qscale but it would not build. One file needs -O1 because of register allocation failing, you should be able to compile it manually, yes it's annoying. Sorry for that. You can add also --enable-debug=gdb3 PS: please do not top-post on this mailing list. Thanks for your understanding. Thanks for your reply, but I am not sure I understand. I you saying that I need to compile a single file with -O1 option? If so which file? mpegvideo.c ? The one not compiling, I don't think it is mpegvideo.c but dsputil_mmx.c I will try it tomorrow and let you know. Ok. Thanks for you great help. I hope this is bottom posted! Yes, it is, thanks. -- Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA FFmpeg maintainer http://www.ffmpeg.org ___ libav-user mailing list libav-user@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/libav-user
