Hi,
I am not a developer, I am a user. I am trying to solve a problem that I am
experiencing myself. I need your help on this.
I am trying to record a live rtmp stream with FFmpeg. Live stream source
requires swf validation. But I have a compressed swf. FFmpeg can not find
the correct hash / size values.
For this reason, I have to manually assign these two values. In the Librtmp
library these options are available as manually adjustable. But FFmpeg does
not offer these options.
I followed these steps to add these options;
Step 1: I downloaded releases ffmpeg-snapshot.tar.bz2
Step 2: I reviewed ffmpeg \ libavformat \ rtmpproto.c.
I found these lines:
Line 109 ::: char* swfhash; ///< SHA256 hash of the
decompressed SWF file (32 bytes)
Line 110 ::: int swfhash_len; ///< length of the SHA256 hash
Line 111 ::: int swfsize; ///< size of the decompressed
SWF file
Line 3130 :: {"rtmp_swfhash", "SHA256 hash of the decompressed SWF file
(32 bytes).", OFFSET(swfhash), AV_OPT_TYPE_BINARY, .flags = DEC},
Line 3131 :: {"rtmp_swfsize", "Size of the decompressed SWF file,
required for SWFVerification.", OFFSET(swfsize), AV_OPT_TYPE_INT, {.i64 =
0}, 0, INT_MAX, DEC},
Step 3: I have reviewed ffmpeg \ libavformat \ librtmp.c.
Result: There were no rtmp_swfhash and rtmp_swfsize options.
I have added the following lines:
++ char *swfhash;
++ int swfsize;
++ {"rtmp_swfhash", "SHA256 hash of the decompressed SWF file (32
bytes).", OFFSET(swfhash), AV_OPT_TYPE_BINARY, .flags = DEC},
++ {"rtmp_swfsize", "Size of the decompressed SWF file, required for
SWFVerification.", OFFSET(swfsize), AV_OPT_TYPE_INT, {.i64 = 0}, 0,
INT_MAX, DEC},
Step 4: I compiled it again on ubuntu.
Step 5: I tested it.
Result: Accepted the options. He did not make a mistake. But it did not
work. The values I assign to options are not included in the rtmp package.
WHERE DO I MISTAKE? Rtmpdump packet adds many options. But sending ffmpeg
package is missing.
FFmpeg Librtmp Result
Command : ./ffmpeg -loglevel debug -i "rtmpe://ip/xlive" -rtmp_tcurl
"rtmpe://ip/xlive" -rtmp_app xlive -rtmp_flashver "WIN 23,0,0,162"
-rtmp_swfurl "http://local/Player.swf"; -rtmp_swfverify "
http://local/Player.swf"; -rtmp_swfhash
"50102110f085d9284d7f069e5e3a9150e4a241d7557d6d1f9e460fdf315875c8"
-rtmp_swfsize 611197 -rtmp_pageurl "http://local/?v=139363695"; -rtmp_conn
S:client -rtmp_conn S:3.1.0.10 -rtmp_conn S:en -rtmp_live live -live 1
-rtmp_playpath "raw:878162" -f flv -y aa.flv
Output Packet : RTMP_SendPacket: fd=4, size=172
0000: 03 00 00 00 00 00 ac 14 00 00 00 00 ............
0000: 02 00 07 63 6f 6e 6e 65 63 74 00 3f f0 00 00 00 ...connect.?....
0010: 00 00 00 03 00 03 61 70 70 02 00 05 78 6c 69 76 ......app...xliv
0020: 65 00 05 74 63 55 72 6c 02 00 1b 72 74 6d 70 65 e..tcUrl...rtmpe
0030: 3a 2f 2f 39 31 2e 31 39 32 2e 38 30 2e 32 31 30 ://ip
0040: 2f 78 6c 69 76 65 00 04 66 70 61 64 01 00 00 0c /xlive..fpad....
0050: 63 61 70 61 62 69 6c 69 74 69 65 73 00 40 2e 00 capabilities.@..
0060: 00 00 00 00 00 00 0b 61 75 64 69 6f 43 6f 64 65 .......audioCode
0070: 63 73 00 40 a8 ee 00 00 00 00 00 00 0b 76 69 64 c...@.........vid
0000: c3 .
0000: 65 6f 43 6f 64 65 63 73 00 40 6f 80 00 00 00 00 eoCodecs.@o.....
0010: 00 00 0d 76 69 64 65 6f 46 75 6e 63 74 69 6f 6e ...videoFunction
0020: 00 3f f0 00 00 00 00 00 00 00 00 09 .?..........
Invoking connect
RTMPDump Librtmp Result
Command : rtmpdump --debug -r rtmpe://ip/xlive -a xlive -f WIN 23,0,0,162
-s "http://local/Player.swf"; -w
50102110f085d9284d7f069e5e3a9150e4a241d7557d6d1f9e460fdf315875c8 -x 611197
-p "http://local/?v=139363695"; -C S:client -C S:3.1.0.10 -C S:en --live -y
raw:"878162"
Output Packet : DEBUG2: RTMP_SendPacket: fd=328, size=373
DEBUG2: 0000: 03 00 00 00 00 01 75 14 00 00 00 00
......u.....
DEBUG2: 0000: 02 00 07 63 6f 6e 6e 65 63 74 00 3f f0 00 00 00
...connect.?....
DEBUG2: 0010: 00 00 00 03 00 03 61 70 70 02 00 05 78 6c 69 76
......app...xliv
DEBUG2: 0020: 65 00 08 66 6c 61 73 68 56 65 72 02 00 03 57 49
e..flashVer...WI
DEBUG2: 0030: 4e 00 06 73 77 66 55 72 6c 02 00 3c 68 74 74 70
N..swfUrl..<http
DEBUG2: 0040: 3a 2f 2f 73 74 72 65 61 6d 73 70 6f 72 74 33 36
://loca/Player.s
DEBUG2: 0050: 35 2e 63 6f 6d 2f 67 65 74 5a 6f 6e 65 2f 56 69
wfxxxxxxxxxxxxxx
DEBUG2: 0060: 64 65 6f 50 6c 61 79 65 72 53 70 6f 72 74 73 74
deoPlayerSportst
DEBUG2: 0070: 72 65 61 6d 2e 73 77 66 00 05 74 63 55 72 6c 02
ream.swf..tcUrl.
DEBUG2: 0000: c3 .
DEBUG2: 0000: 00 20 72 74 6d 70 65 3a 2f 2f 39 31 2e 31 39 32 .
rtmpe://ip/xxx
DEBUG2: 0010: 2e 38 30 2e 32 31 30 3a 31 39 33 35 2f 78 6c 69
/xlixxxxxxxxxxxx
DEBUG2: 0020: 76 65 00 04 66 70 61 64 01 00 00 0c 63 61 70 61
ve..fpad....capa
DEBUG2: 0030: 62 69 6c 69 74 69 65 73 00 40 6d e0 00 00 00 00
bilities.@m.....
DEBUG2: 0040: 00 00 0b 61 75 64 69 6f 43 6f 64 65 63 73 00 40
...audioCodecs.@
DEBUG2: 0050: ab ee 00 00 00 00 00 00 0b 76 69 64 65 6f 43 6f
.........videoCo
DEBUG2: 0060: 64 65 63 73 00 40 6f 80 00 00 00 00 00 00 0d 76 decs.@o.
.......v
DEBUG2: 0070: 69 64 65 6f 46 75 6e 63 74 69 6f 6e 00 3f f0 00
ideoFunction.?..
DEBUG2: 0000: c3 .
DEBUG2: 0000: 00 00 00 00 00 00 07 70 61 67 65 55 72 6c 02 00
.......pageUrl..
DEBUG2: 0010: 2f 68 74 74 70 3a 2f 2f 73 74 72 65 61 6d 73 70 /
http://local/?v
DEBUG2: 0020: 6f 72 74 33 36 35 2e 63 6f 6d 2f 76 69 65 77 65
=xxxxxxxxxxxxxxx
DEBUG2: 0030: 72 3f 67 61 6d 65 3d 31 33 39 32 39 37 34 35 37
xxxxxxxxxxxxxxxx
DEBUG2: 0040: 00 0e 6f 62 6a 65 63 74 45 6e 63 6f 64 69 6e 67
..objectEncoding
DEBUG2: 0050: 00 40 08 00 00 00 00 00 00 00 00 09 02 00 06 63
.@.............c
DEBUG2: 0060: 6c 69 65 6e 74 02 00 08 33 2e 31 2e 30 2e 31 30
lient...3.1.0.10
DEBUG2: 0070: 02 00 02 65 6e ...en
DEBUG: Invoking connect
INFO: Connected...
Thankyou...
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