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364 Commits

Author SHA1 Message Date
Saxon 7fca2257a4 codec/mjpeg/jpeg.go: simplified writing of huffman tables by calculating n values in global vars 2020-01-07 14:36:15 +10:30
Saxon 7fb5ed00a2 codec/mjpeg/jpeg.go: simplified copies 2020-01-07 13:53:26 +10:30
Saxon 52f18cdc58 codec/mjpeg/jpeg.go: simplified some more indexing 2020-01-07 13:14:18 +10:30
Saxon 0b848cb01b codec/mjpeg/jpeg.go: no longer need to convert dri to uint16. 2020-01-07 13:12:22 +10:30
Saxon 4325b86a99 codec/mjpeg/jpeg.go: don't need to convert jfifLabel string to []byte for copy 2020-01-07 13:11:25 +10:30
Saxon 38c4972a76 codec/mjpeg/jpeg.go: simplified some indexing 2020-01-07 13:09:27 +10:30
Saxon d0e356314d codec/mjpeg/jpeg.go: moved get24 to bottom of file and gave comment. 2020-01-07 13:06:56 +10:30
Saxon 86e215f913 codec/mjpeg/jpeg.go: decrementing q by 128 before qLen > 0 check to simplify indexing where q-128 is done 2020-01-07 13:01:34 +10:30
Saxon f187af747b codec/mjpeg/jpeg.go: removing panics inside ParsePayload in favour of errors 2020-01-07 12:52:31 +10:30
Saxon 803cdf0747 codec/mjpeg/jpeg.go: dir is now uint16 to avoid conversion 2020-01-07 11:14:43 +10:30
Saxon 83a304037c codec/mjpeg/jpeg.go: simplified writing of bytes for SOF and SOS headers 2020-01-07 11:08:36 +10:30
Saxon 4834aa8ca2 codec/mjpeg/jpeg.go: don't need to set c.blen to 0 2020-01-04 13:53:04 +10:30
Saxon ef4e9a3f69 codec/mjpeg: removed putBuffer and its usage 2020-01-04 13:10:40 +10:30
Saxon ab2f2e4c0b codec/mjpeg/testdata/expect.mjpeg: updated expected MJPEG file 2020-01-04 01:55:56 +10:30
Saxon 692325523c codec/mjpeg/jpeg.go: removed usage of putBuffer in parsePayload 2020-01-04 01:50:56 +10:30
Saxon 7ee8fa566c codec/mjpeg: removed byteStream type and its usage 2020-01-04 01:32:45 +10:30
Saxon 47d145a222 codec/mjpeg: added jpeg_test.go, tests.go and expected output, expect.mjpeg to test ParsePayload function in jpeg.go 2020-01-03 17:10:18 +10:30
Saxon 36bcd361ed codec/mjpeg/jpeg.go: removed 'mark' function 2020-01-02 15:42:15 +10:30
Saxon 5a09a5f12d codec/mjpeg/jpeg.go: simplified if statement 2020-01-02 15:04:16 +10:30
Saxon 31902f2448 codec/mjpeg/jpeg.go: componenting consts for SOF0 and SOS headers 2020-01-02 11:30:51 +10:30
Saxon 323cc185dc codec/mjpeg/jpeg.go: defining consts for SOS header fields 2020-01-02 11:20:21 +10:30
Saxon 49138ce021 codec/mjpeg/jpeg.go: defining consts for SOF0 header fields 2020-01-01 19:15:32 +10:30
Saxon 3f4561da5b codec/mjpeg/jpeg.go: defining consts for JFIF header 2020-01-01 18:34:51 +10:30
Saxon d146b65c57 codec/mjpeg/utils.go: added TODO in file header DESCRIPTION field to make stuff in this file exported in codecutil 2019-12-29 22:59:29 +10:30
Saxon 5b8f71b7d8 codec/mjpeg: renamed putBuffer.putBuf to putBytes 2019-12-29 22:57:35 +10:30
Saxon 13e2571230 codec/mjpeg/jpeg.go: renamed fields of putBuffer struct 2019-12-29 22:55:27 +10:30
Saxon bf865e48c5 codec/mjpeg/jpeg.go: made JFIF header label local const 2019-12-29 22:50:20 +10:30
Saxon e0397e1769 codec/mjpeg/jpeg.go: improve Context struct field names 2019-12-29 22:47:38 +10:30
Saxon c691d4c1ff codec/mjpeg: renamed Ctx type to Context and name value of this type ctx instead of c 2019-12-29 22:40:54 +10:30
Saxon b5f87481ba codec/mjpeg/jpeg.go: comment global slices used for huffman table creation 2019-12-29 22:16:09 +10:30
Saxon 9a02d295fe codec/mjpeg/utils.go: using BigEndian.Uint16 in get16 2019-12-23 14:24:08 +10:30
Saxon 2d7a400b3e codec/mjpeg/jpeg.go: renamed ParseScan to ParsePayload, updated call and comment 2019-12-23 14:24:08 +10:30
Saxon 545e7b858f codec/mjpeg/jpeg.go: Fixed comment for Ctx struct 2019-12-23 14:24:08 +10:30
Saxon 23d58e1b12 codec/mjpeg/extract.go: simplified error message when can't get RTP payload 2019-12-23 14:24:08 +10:30
Saxon 5cd4a0a23c codec/mjpeg/jpeg.go: fixed indentation on file header 2019-12-23 14:24:08 +10:30
Saxon 495e5c615a codec/mjpeg/jpeg.go: fixed indentation in file header 2019-12-23 14:24:08 +10:30
Saxon fa4d7b8141 codec/mjpeg/extract.go: corrected comment for Extractor.dst field 2019-12-23 14:24:08 +10:30
Saxon 90ab359599 codec/mjpeg: tidying up 
Separated my code from code that was ported from ffmpeg (differen copyright). Also added utils.go file to house the putBuffer and bytestream types. Reduced copying and use of bytes.Buffer.
Instead expanded putBuffer functionality so that I can use this throughout process (reduce copying from buffer to buffer).
 2019-12-23 14:24:08 +10:30
Saxon e3b6d2101a Fixed bugs, now working 2019-12-23 14:24:08 +10:30
Saxon ba25cdfd12 codec/mjpeg/extract.go: wrote Extractor type 
Wrote extractor type that provides an Extract function to extract JPEG frames from an RTP/MJPEG stream and writes them to a destination.
 2019-12-23 14:24:07 +10:30
Saxon c2ce700cbd codec/mjpeg/jpeg.go: added writeHeader function to write JPEG header 
This also included the addition of some lunimance and chrominance tables, a multiError type (implements error) and a putter type, that will put uint16s, bytes and "buffers" into a byte
slice.
 2019-12-23 14:24:07 +10:30
Saxon 63f694a0a5 codec/mjpeg/jpeg.go: added writeHuffman function to write JPEG huffman tables to an io.Writer. 2019-12-23 14:24:07 +10:30
Saxon 4781a02ec5 codec/mjpeg/jpeg.go: added putMarker function to write JPEG marker codes to an io.Writer 2019-12-23 14:24:07 +10:30
Saxon 6c78ff49cd codec/mjpeg: added jpeg.go file to hold JPEG specific stuff and added some JPEG marker codes. 2019-12-23 14:24:07 +10:30
Saxon 39c66bdfd6 codec/mjpeg/utils.go: using BigEndian.Uint16 in get16 2019-12-23 13:59:27 +10:30
Saxon 7ee35f650f codec/mjpeg/jpeg.go: renamed ParseScan to ParsePayload, updated call and comment 2019-12-23 12:59:25 +10:30
Saxon 4df5f11364 codec/mjpeg/jpeg.go: Fixed comment for Ctx struct 2019-12-23 12:54:31 +10:30
Saxon 6c379458d7 codec/mjpeg/extract.go: simplified error message when can't get RTP payload 2019-12-23 12:51:21 +10:30
Saxon 6407f24d90 codec/mjpeg/jpeg.go: fixed indentation on file header 2019-12-23 12:48:08 +10:30
Scott e116e197ae Changed all %v's to %w's where appropriate 2019-12-04 14:12:20 +10:30
Saxon 870c0bc3fa codec/mjpeg/jpeg.go: fixed indentation in file header 2019-11-23 15:34:59 +10:30
Saxon 5b3988a5e0 codec/mjpeg/extract.go: corrected comment for Extractor.dst field 2019-11-23 15:33:41 +10:30
Saxon 82d9e5e8bd codec/mjpeg: tidying up 
Separated my code from code that was ported from ffmpeg (differen copyright). Also added utils.go file to house the putBuffer and bytestream types. Reduced copying and use of bytes.Buffer.
Instead expanded putBuffer functionality so that I can use this throughout process (reduce copying from buffer to buffer).
 2019-11-23 15:25:18 +10:30
Saxon e467c7792d Fixed bugs, now working 2019-11-22 13:05:11 +10:30
Saxon bee8cd270c codec/mjpeg/extract.go: wrote Extractor type 
Wrote extractor type that provides an Extract function to extract JPEG frames from an RTP/MJPEG stream and writes them to a destination.
 2019-11-20 13:40:07 +10:30
Saxon eaac50f339 codec/mjpeg/jpeg.go: added writeHeader function to write JPEG header 
This also included the addition of some lunimance and chrominance tables, a multiError type (implements error) and a putter type, that will put uint16s, bytes and "buffers" into a byte
slice.
 2019-11-16 23:12:08 +10:30
Saxon a63cf5a1b7 codec/mjpeg/jpeg.go: added writeHuffman function to write JPEG huffman tables to an io.Writer. 2019-11-15 16:25:35 +10:30
Saxon 7577cfa0c4 codec/mjpeg/jpeg.go: added putMarker function to write JPEG marker codes to an io.Writer 2019-11-15 15:41:02 +10:30
Saxon f5b6af559f codec/mjpeg: added jpeg.go file to hold JPEG specific stuff and added some JPEG marker codes. 2019-11-15 15:11:53 +10:30
Trek H cd63d0d95a alsa: unexported ringbuffer chunksize 
Chunksize can be calculated without needing an ALSA device instance.

Added a DataSize function to pcm package for calculating size of pcm data given relevant attributes.

Removed ChunkSize from config revid config struct.

Changed NewByteLexer to accept an in rather than a pointer.
 2019-11-13 19:56:13 +10:30
Trek H 796a3b9a97 pcm: changed term clip to buffer 2019-11-13 16:54:41 +10:30
Trek H 3a7c2c5c5e pcm: removed unused sample formats 2019-11-13 14:00:52 +10:30
Trek H 678245c634 pcm: fix string format 2019-11-13 12:30:48 +10:30
Trek H 5e472ba4c9 pcm: refactored to be general not alsa only 
Addition of new structs and helper functions for passing around pcm clips/buffers and their formats so that we don't have to import and rely on yobert/alsa code.

Updated any commands and alsa package to use refactored code.
 2019-11-12 21:24:08 +10:30
Saxon 47f6dcfe51 codec/h264/extract.go: extracter->extractor everywhere 2019-10-28 08:41:49 +10:30
Saxon Milton 392ed399d9 Merged in use-gvctrl-in-revid (pull request #266) 
Use gvctrl in revid

Approved-by: Alan Noble <anoble@gmail.com>
 2019-10-25 01:27:05 +00:00
Saxon 529ca0d547 codec/h264/extract.go: simplified switch 2019-10-23 14:38:18 +10:30
Saxon 38cfad7b67 revid: fixing some more bugs 
Fixed H264 RTP extractor. Fine tuned some timing regarding geovision setup. Added some more
logging to geovision setup.
 2019-10-23 12:48:22 +10:30
Saxon f336a03d7a revid: general bug fixing 
Use http instead of https in gvctrl getLogin request. Gave RTP client a close method so that the conn can
be closed after we're done with the client. Put timeout on reading from the RTP client PacketConn so that
we don't hang on the ReadFrom call if the conn is closed. Closing the RTSP and RTP clients when
startRTSPCamera is returned.
 2019-10-22 23:04:33 +10:30
Saxon Milton 38eed6bb2d Merged in fix-mjpeg-lex (pull request #261) 
codec/mjpeg/lex.go: returning nil error from Lex if we get io.EOF on reading bytes

Approved-by: Alan Noble <anoble@gmail.com>
 2019-10-20 02:24:45 +00:00
Saxon b418749be5 codec/h264/h264dec/fuzz/helpers.c: actually committed this file now: 2019-10-20 09:36:55 +10:30
Saxon d0f99b581d codec/h264/h264dec/fuzz/helpers.c: checking if malloc bit reader mem returns NULL 2019-10-20 09:29:22 +10:30
Saxon 08264f7bf5 codec/h264/h264dec/fuzz/fuzzParseLevelPrefix/fuzz.go: swapped got and want to correct orientation 2019-10-20 09:17:03 +10:30
Saxon 7181532ccb codec/mjpeg/lex.go changed error checks for io.EOF to positive checks 2019-10-20 09:08:19 +10:30
Saxon 9087f727db codec/h264/extract_test.go: fixed testing for extractor 2019-10-07 16:12:30 +10:30
Saxon fc4e88bce6 fixed bugs causing problems with GeoVision H264 RTMP to youtube streaming. 
Two fixes were involved, firstly, access unit delimeters were used to denote access units and the Write timeout on rtmpSender's ringBuffer was
increased to stop the 'unable to dump old write' errors. Also made some small changes elsewhere that should fix future issues, particular with
MTS output.
 2019-10-07 14:18:20 +10:30
Saxon 1c9146eec0 codec/mjpeg/lex.go: returning nil error from Lex if we get io.EOF on reading bytes 2019-10-03 00:32:34 +09:30
Saxon 2d5d8f3bdd codec/codecutil/helpers.go: added ADPCM support to SIDToMIMEType 2019-10-01 21:01:45 +09:30
Saxon 2acc729676 codec/codecutil/helpers.go: added helpers.go file with SIDToMIMEType function to provide MIME type given a stream ID 2019-10-01 21:01:45 +09:30
Saxon faf5e2df0f codec/h264/h264dec/fuzz: added fuzzer test for parseLevelPrefix function 
The fuzz package has been created, which will house C based helper code and sub-packages dedicated to each fuzz test. A sub packaged called
fuzzParseLevelPrefix has been created to house the fuzz test for parseLevelPrefix. Emeric's C code has been isolated into some C files, and a file
called fuzz.go has been created, which houses the actual fuzz test function. An initial corpus has been added with 3 inputs.
 2019-09-23 12:18:14 +09:30
Saxon Milton f8f78947f9 Merged in picture-order-count (pull request #249) 
codec/h264/h264dec/decode.go: decoding process for picture order count

Approved-by: Alan Noble <anoble@gmail.com>
 2019-09-20 02:37:33 +00:00
Saxon Milton 1fba7556dd Merged in total-coeff-and-trailing-ones (pull request #243) 
codec/h264/h264dec: parsing process for TotalCoeff and TrailingOnes

Approved-by: Alan Noble <anoble@gmail.com>
 2019-09-20 00:38:58 +00:00
Saxon 4c7f36ee36 codec/h264/h264dec/decode.go: slightly simplified if-else statements regarding BottomField and FieldPic 2019-09-18 19:41:32 +09:30
Saxon 117a75ae55 codec/h264/h264dec: simplified logic where there are things applicable to non-IDRs, which we don't handle yet. 2019-09-16 22:07:57 +09:30
Saxon 89452d55d3 codec/h264/h264dec/cavlc.go: simplified logic in loop to count leading zeros in formCoeffTokenMap 2019-09-13 11:21:00 +09:30
Trek H 2c7e28206d Merge branch 'master' into adpcm-mts 2019-09-12 21:11:50 +09:30
Trek H 96035f6d8b adpcm and mts: comments and pid change 2019-09-12 19:16:11 +09:30
Saxon ecdaab175b codec/h264/parse.go: skip over access unit delimiters when getting nalType 2019-09-11 09:47:37 +09:30
Saxon 5939db6f1b codec/h264/h264dec/decode.go: using if else structures for topFieldOrderCnt/bottomFieldOrderCnt value derivations in decodePicOrderCntType2 2019-09-10 12:12:08 +09:30
Saxon 40fa50d4f0 codec/h264/h264dec/decode.go: using if else structure for derivation of topFieldOrderCnt and bottomFieldOrderCnt in decodePicOrderCntType1 function 2019-09-10 12:06:35 +09:30
Saxon 0df182018a codec/h264/h264dec/decode.go: using else if structure instead of switch to derive value of vid.picOrderCntMsb 2019-09-10 11:32:46 +09:30
Saxon 88857ec5b9 codec/h264/h264dec/cavlc.go: fixed error message that's returned on failure to read coeffTokenTable string 2019-09-10 11:22:25 +09:30
Saxon 445649311b codec/h264/h264dec/cavlc.go: added process to comgine level and run information 2019-09-09 17:05:22 +09:30
Saxon 05e16ec260 codec/h264/h2646dec/cavlc.go: fixed build error caused by rebase 2019-09-09 16:48:10 +09:30
Saxon d78ca2d2d2 codec/h264/h264dec/cavlctab.go: commented const string representation of table 9-5. 2019-09-09 16:41:26 +09:30
Saxon 42a1918c0d codec/h264/h264dec: using const string instead of CSV file to hold table 9-5. Also made some other minor improvements 2019-09-09 16:41:26 +09:30
Saxon 92eb3e85a5 codec/h264/h264dec: created tokenMap type to make things more readable 2019-09-09 16:41:26 +09:30
Saxon 8316a621b9 codec/h264/h264dec/cavlc.go: fix comment inside parseTotalCoeffAndTrailingOnes 2019-09-09 16:41:26 +09:30
Saxon 4aa71e901c codec/h264/h264dec: put function parameters on one line for parseTotalCoeffAndTrailingOnes 2019-09-09 16:41:26 +09:30
Saxon 61a5065556 codec/h264/h264dec: added functions to get TrailingOnes and TotalCoeff as well as testing 
The functions firstly derive the value of nC and then read the value of coeff_token from the BitReader. The table read prior and loaded into
a 'map' is then used to get the corresponding values of TrailingOnes and TotalCoef.
 2019-09-09 16:41:26 +09:30