mirror of
https://gitlab.linphone.org/BC/public/linphone-iphone.git
synced 2026-01-30 09:49:26 +00:00
- add missing "static" declarators and move MakeTables to the encoder.
git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@715 3f6dc0c8-ddfe-455d-9043-3cd528dc4637
This commit is contained in:
smorlat
parent
a239191091
commit
322f10edba
2 changed files with 287 additions and 289 deletions
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@ -235,221 +235,278 @@ struct jpeghdr_qtable {
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};
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u_char lum_dc_codelens[] = {
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0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0,
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};
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u_char lum_dc_symbols[] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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};
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u_char lum_ac_codelens[] = {
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0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d,
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};
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u_char lum_ac_symbols[] = {
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0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
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0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
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0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
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0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
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0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
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0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
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0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
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0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
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0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
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0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
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0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
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0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
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0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
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0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
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0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
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0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
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0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
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0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
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0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
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0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
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0xf9, 0xfa,
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};
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u_char chm_dc_codelens[] = {
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0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
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};
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u_char chm_dc_symbols[] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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};
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u_char chm_ac_codelens[] = {
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0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77,
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};
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u_char chm_ac_symbols[] = {
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0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
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0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
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0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
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0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
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0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34,
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0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26,
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0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
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0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
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0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
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0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
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0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
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0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
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0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4,
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0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3,
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0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
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0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda,
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0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
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0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
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0xf9, 0xfa,
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};
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u_char *
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MakeQuantHeader(u_char *p, u_char *qt, int tableNo, int table_len)
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{
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*p++ = 0xff;
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*p++ = 0xdb; /* DQT */
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*p++ = 0; /* length msb */
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*p++ = table_len+3; /* length lsb */
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*p++ = tableNo;
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memcpy(p, qt, table_len);
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return (p + table_len);
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}
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u_char *
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MakeHuffmanHeader(u_char *p, u_char *codelens, int ncodes,
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u_char *symbols, int nsymbols, int tableNo,
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int tableClass)
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{
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*p++ = 0xff;
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*p++ = 0xc4; /* DHT */
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*p++ = 0; /* length msb */
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*p++ = 3 + ncodes + nsymbols; /* length lsb */
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*p++ = (tableClass << 4) | tableNo;
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memcpy(p, codelens, ncodes);
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p += ncodes;
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memcpy(p, symbols, nsymbols);
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p += nsymbols;
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return (p);
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}
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u_char *
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MakeDRIHeader(u_char *p, u_short dri) {
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*p++ = 0xff;
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*p++ = 0xdd; /* DRI */
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*p++ = 0x0; /* length msb */
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*p++ = 4; /* length lsb */
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*p++ = dri >> 8; /* dri msb */
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*p++ = dri & 0xff; /* dri lsb */
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return (p);
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}
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/*
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* Arguments:
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* type, width, height: as supplied in RTP/JPEG header
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* lqt, cqt: quantization tables as either derived from
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* the Q field using MakeTables() or as specified
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* in section 4.2.
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* dri: restart interval in MCUs, or 0 if no restarts.
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*
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* p: pointer to return area
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*
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* Return value:
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* The length of the generated headers.
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*
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* Generate a frame and scan headers that can be prepended to the
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* RTP/JPEG data payload to produce a JPEG compressed image in
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* interchange format (except for possible trailing garbage and
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* absence of an EOI marker to terminate the scan).
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*/
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int MakeHeaders(u_char *p, int type, int w, int h, u_char *lqt,
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u_char *cqt, unsigned table_len, u_short dri)
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{
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u_char *start = p;
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/* convert from blocks to pixels */
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w <<= 3;
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h <<= 3;
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*p++ = 0xff;
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*p++ = 0xd8; /* SOI */
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if (table_len>64)
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{
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p = MakeQuantHeader(p, lqt, 0, table_len/2);
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p = MakeQuantHeader(p, cqt, 1, table_len/2);
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}
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else
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{
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p = MakeQuantHeader(p, lqt, 0, table_len);
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//p = MakeQuantHeader(p, lqt, 1, table_len);
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}
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if (dri != 0)
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p = MakeDRIHeader(p, dri);
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*p++ = 0xff;
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*p++ = 0xc0; /* SOF */
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*p++ = 0; /* length msb */
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*p++ = 17; /* length lsb */
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*p++ = 8; /* 8-bit precision */
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*p++ = h >> 8; /* height msb */
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*p++ = h; /* height lsb */
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*p++ = w >> 8; /* width msb */
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*p++ = w; /* wudth lsb */
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*p++ = 3; /* number of components */
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*p++ = 0; /* comp 0 */
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if (type == 0)
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*p++ = 0x21; /* hsamp = 2, vsamp = 1 */
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else
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*p++ = 0x22; /* hsamp = 2, vsamp = 2 */
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*p++ = 0; /* quant table 0 */
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*p++ = 1; /* comp 1 */
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*p++ = 0x11; /* hsamp = 1, vsamp = 1 */
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*p++ = table_len <= 64 ? 0x00 : 0x01; //1 /* quant table 1 */
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*p++ = 2; /* comp 2 */
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*p++ = 0x11; /* hsamp = 1, vsamp = 1 */
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*p++ = table_len <= 64 ? 0x00 : 0x01; //1; /* quant table 1 */
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p = MakeHuffmanHeader(p, lum_dc_codelens,
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sizeof(lum_dc_codelens),
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lum_dc_symbols,
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sizeof(lum_dc_symbols), 0, 0);
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p = MakeHuffmanHeader(p, lum_ac_codelens,
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sizeof(lum_ac_codelens),
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lum_ac_symbols,
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sizeof(lum_ac_symbols), 0, 1);
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p = MakeHuffmanHeader(p, chm_dc_codelens,
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sizeof(chm_dc_codelens),
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chm_dc_symbols,
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sizeof(chm_dc_symbols), 1, 0);
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p = MakeHuffmanHeader(p, chm_ac_codelens,
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sizeof(chm_ac_codelens),
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chm_ac_symbols,
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static u_char lum_dc_codelens[] = {
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0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0,
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};
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static u_char lum_dc_symbols[] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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};
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static u_char lum_ac_codelens[] = {
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0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d,
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};
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static u_char lum_ac_symbols[] = {
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0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
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0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
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0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
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0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
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0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
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0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
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0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
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0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
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0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
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0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
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0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
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0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
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0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
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0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
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0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
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0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
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0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
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0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
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0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
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0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
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0xf9, 0xfa,
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};
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static u_char chm_dc_codelens[] = {
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0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
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};
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static u_char chm_dc_symbols[] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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};
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static u_char chm_ac_codelens[] = {
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0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77,
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};
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static u_char chm_ac_symbols[] = {
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0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
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0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
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0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
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0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
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0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34,
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0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26,
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0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
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0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
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0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
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0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
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0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
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0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
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0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4,
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0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3,
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0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
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0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda,
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0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
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0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
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0xf9, 0xfa,
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};
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static u_char *
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MakeQuantHeader(u_char *p, u_char *qt, int tableNo, int table_len)
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{
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*p++ = 0xff;
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*p++ = 0xdb; /* DQT */
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*p++ = 0; /* length msb */
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*p++ = table_len+3; /* length lsb */
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*p++ = tableNo;
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memcpy(p, qt, table_len);
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return (p + table_len);
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}
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static u_char *
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MakeHuffmanHeader(u_char *p, u_char *codelens, int ncodes,
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u_char *symbols, int nsymbols, int tableNo,
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int tableClass)
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{
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*p++ = 0xff;
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*p++ = 0xc4; /* DHT */
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*p++ = 0; /* length msb */
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*p++ = 3 + ncodes + nsymbols; /* length lsb */
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*p++ = (tableClass << 4) | tableNo;
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memcpy(p, codelens, ncodes);
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p += ncodes;
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memcpy(p, symbols, nsymbols);
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p += nsymbols;
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return (p);
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}
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static u_char *
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MakeDRIHeader(u_char *p, u_short dri) {
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*p++ = 0xff;
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*p++ = 0xdd; /* DRI */
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*p++ = 0x0; /* length msb */
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*p++ = 4; /* length lsb */
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*p++ = dri >> 8; /* dri msb */
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*p++ = dri & 0xff; /* dri lsb */
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return (p);
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}
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/*
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* Arguments:
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* type, width, height: as supplied in RTP/JPEG header
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* lqt, cqt: quantization tables as either derived from
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* the Q field using MakeTables() or as specified
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* in section 4.2.
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* dri: restart interval in MCUs, or 0 if no restarts.
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*
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* p: pointer to return area
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*
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* Return value:
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* The length of the generated headers.
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*
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* Generate a frame and scan headers that can be prepended to the
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* RTP/JPEG data payload to produce a JPEG compressed image in
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* interchange format (except for possible trailing garbage and
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* absence of an EOI marker to terminate the scan).
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*/
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static int MakeHeaders(u_char *p, int type, int w, int h, u_char *lqt,
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u_char *cqt, unsigned table_len, u_short dri)
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{
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u_char *start = p;
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/* convert from blocks to pixels */
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w <<= 3;
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h <<= 3;
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*p++ = 0xff;
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*p++ = 0xd8; /* SOI */
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if (table_len>64)
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{
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p = MakeQuantHeader(p, lqt, 0, table_len/2);
|
||||
p = MakeQuantHeader(p, cqt, 1, table_len/2);
|
||||
}
|
||||
else
|
||||
{
|
||||
p = MakeQuantHeader(p, lqt, 0, table_len);
|
||||
//p = MakeQuantHeader(p, lqt, 1, table_len);
|
||||
}
|
||||
if (dri != 0)
|
||||
p = MakeDRIHeader(p, dri);
|
||||
|
||||
*p++ = 0xff;
|
||||
*p++ = 0xc0; /* SOF */
|
||||
*p++ = 0; /* length msb */
|
||||
*p++ = 17; /* length lsb */
|
||||
*p++ = 8; /* 8-bit precision */
|
||||
*p++ = h >> 8; /* height msb */
|
||||
*p++ = h; /* height lsb */
|
||||
*p++ = w >> 8; /* width msb */
|
||||
*p++ = w; /* wudth lsb */
|
||||
*p++ = 3; /* number of components */
|
||||
*p++ = 0; /* comp 0 */
|
||||
if (type == 0)
|
||||
*p++ = 0x21; /* hsamp = 2, vsamp = 1 */
|
||||
else
|
||||
*p++ = 0x22; /* hsamp = 2, vsamp = 2 */
|
||||
*p++ = 0; /* quant table 0 */
|
||||
*p++ = 1; /* comp 1 */
|
||||
*p++ = 0x11; /* hsamp = 1, vsamp = 1 */
|
||||
*p++ = table_len <= 64 ? 0x00 : 0x01; //1 /* quant table 1 */
|
||||
*p++ = 2; /* comp 2 */
|
||||
*p++ = 0x11; /* hsamp = 1, vsamp = 1 */
|
||||
*p++ = table_len <= 64 ? 0x00 : 0x01; //1; /* quant table 1 */
|
||||
p = MakeHuffmanHeader(p, lum_dc_codelens,
|
||||
sizeof(lum_dc_codelens),
|
||||
lum_dc_symbols,
|
||||
sizeof(lum_dc_symbols), 0, 0);
|
||||
p = MakeHuffmanHeader(p, lum_ac_codelens,
|
||||
sizeof(lum_ac_codelens),
|
||||
lum_ac_symbols,
|
||||
sizeof(lum_ac_symbols), 0, 1);
|
||||
p = MakeHuffmanHeader(p, chm_dc_codelens,
|
||||
sizeof(chm_dc_codelens),
|
||||
chm_dc_symbols,
|
||||
sizeof(chm_dc_symbols), 1, 0);
|
||||
p = MakeHuffmanHeader(p, chm_ac_codelens,
|
||||
sizeof(chm_ac_codelens),
|
||||
chm_ac_symbols,
|
||||
sizeof(chm_ac_symbols), 1, 1);
|
||||
|
||||
*p++ = 0xff;
|
||||
*p++ = 0xda; /* SOS */
|
||||
*p++ = 0; /* length msb */
|
||||
*p++ = 12; /* length lsb */
|
||||
*p++ = 3; /* 3 components */
|
||||
*p++ = 0; /* comp 0 */
|
||||
*p++ = 0; /* huffman table 0 */
|
||||
*p++ = 1; /* comp 1 */
|
||||
*p++ = 0x11; /* huffman table 1 */
|
||||
*p++ = 2; /* comp 2 */
|
||||
*p++ = 0x11; /* huffman table 1 */
|
||||
*p++ = 0; /* first DCT coeff */
|
||||
*p++ = 63; /* last DCT coeff */
|
||||
*p++ = 0; /* sucessive approx. */
|
||||
|
||||
return (p - start);
|
||||
};
|
||||
*p++ = 0xff;
|
||||
*p++ = 0xda; /* SOS */
|
||||
*p++ = 0; /* length msb */
|
||||
*p++ = 12; /* length lsb */
|
||||
*p++ = 3; /* 3 components */
|
||||
*p++ = 0; /* comp 0 */
|
||||
*p++ = 0; /* huffman table 0 */
|
||||
*p++ = 1; /* comp 1 */
|
||||
*p++ = 0x11; /* huffman table 1 */
|
||||
*p++ = 2; /* comp 2 */
|
||||
*p++ = 0x11; /* huffman table 1 */
|
||||
*p++ = 0; /* first DCT coeff */
|
||||
*p++ = 63; /* last DCT coeff */
|
||||
*p++ = 0; /* sucessive approx. */
|
||||
|
||||
void MakeTables(int q, u_char *lqt, u_char *cqt);
|
||||
return (p - start);
|
||||
};
|
||||
|
||||
mblk_t *
|
||||
|
||||
/*
|
||||
* Table K.1 from JPEG spec.
|
||||
*/
|
||||
static const int jpeg_luma_quantizer[64] = {
|
||||
16, 11, 10, 16, 24, 40, 51, 61,
|
||||
12, 12, 14, 19, 26, 58, 60, 55,
|
||||
14, 13, 16, 24, 40, 57, 69, 56,
|
||||
14, 17, 22, 29, 51, 87, 80, 62,
|
||||
18, 22, 37, 56, 68, 109, 103, 77,
|
||||
24, 35, 55, 64, 81, 104, 113, 92,
|
||||
49, 64, 78, 87, 103, 121, 120, 101,
|
||||
72, 92, 95, 98, 112, 100, 103, 99
|
||||
};
|
||||
|
||||
/*
|
||||
* Table K.2 from JPEG spec.
|
||||
*/
|
||||
static const int jpeg_chroma_quantizer[64] = {
|
||||
17, 18, 24, 47, 99, 99, 99, 99,
|
||||
18, 21, 26, 66, 99, 99, 99, 99,
|
||||
24, 26, 56, 99, 99, 99, 99, 99,
|
||||
47, 66, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99
|
||||
};
|
||||
|
||||
/*
|
||||
* Call MakeTables with the Q factor and two u_char[64] return arrays
|
||||
*/
|
||||
static void MakeTables(int q, u_char *lqt, u_char *cqt)
|
||||
{
|
||||
int i;
|
||||
int factor = q;
|
||||
|
||||
if (q < 1) factor = 1;
|
||||
if (q > 99) factor = 99;
|
||||
if (q < 50)
|
||||
q = 5000 / factor;
|
||||
else
|
||||
q = 200 - factor*2;
|
||||
|
||||
for (i=0; i < 64; i++) {
|
||||
int lq = (jpeg_luma_quantizer[i] * q + 50) / 100;
|
||||
int cq = (jpeg_chroma_quantizer[i] * q + 50) / 100;
|
||||
|
||||
/* Limit the quantizers to 1 <= q <= 255 */
|
||||
if (lq < 1) lq = 1;
|
||||
else if (lq > 255) lq = 255;
|
||||
lqt[i] = lq;
|
||||
|
||||
if (cq < 1) cq = 1;
|
||||
else if (cq > 255) cq = 255;
|
||||
cqt[i] = cq;
|
||||
}
|
||||
}
|
||||
|
||||
static mblk_t *
|
||||
read_rfc2435_header(DecState *s,mblk_t *inm)
|
||||
{
|
||||
if (msgdsize(inm) >= sizeof(struct jpeghdr)) {
|
||||
|
|
@ -496,8 +553,8 @@ read_rfc2435_header(DecState *s,mblk_t *inm)
|
|||
/* prepend headers to JPEG RTP data */
|
||||
if (mblk_get_marker_info(inm))
|
||||
mblk_set_marker_info(headers, TRUE);
|
||||
headers->b_cont=inm;
|
||||
msgpullup(headers, -1);
|
||||
headers->b_cont=inm;
|
||||
msgpullup(headers, -1);
|
||||
return headers;
|
||||
}
|
||||
} else {
|
||||
|
|
|
|||
|
|
@ -459,65 +459,6 @@ static uint8_t *get_psc(uint8_t *begin,uint8_t *end, int packet_size){
|
|||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Table K.1 from JPEG spec.
|
||||
*/
|
||||
static const int jpeg_luma_quantizer[64] = {
|
||||
16, 11, 10, 16, 24, 40, 51, 61,
|
||||
12, 12, 14, 19, 26, 58, 60, 55,
|
||||
14, 13, 16, 24, 40, 57, 69, 56,
|
||||
14, 17, 22, 29, 51, 87, 80, 62,
|
||||
18, 22, 37, 56, 68, 109, 103, 77,
|
||||
24, 35, 55, 64, 81, 104, 113, 92,
|
||||
49, 64, 78, 87, 103, 121, 120, 101,
|
||||
72, 92, 95, 98, 112, 100, 103, 99
|
||||
};
|
||||
|
||||
/*
|
||||
* Table K.2 from JPEG spec.
|
||||
*/
|
||||
static const int jpeg_chroma_quantizer[64] = {
|
||||
17, 18, 24, 47, 99, 99, 99, 99,
|
||||
18, 21, 26, 66, 99, 99, 99, 99,
|
||||
24, 26, 56, 99, 99, 99, 99, 99,
|
||||
47, 66, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99,
|
||||
99, 99, 99, 99, 99, 99, 99, 99
|
||||
};
|
||||
|
||||
/*
|
||||
* Call MakeTables with the Q factor and two u_char[64] return arrays
|
||||
*/
|
||||
void
|
||||
MakeTables(int q, u_char *lqt, u_char *cqt)
|
||||
{
|
||||
int i;
|
||||
int factor = q;
|
||||
|
||||
if (q < 1) factor = 1;
|
||||
if (q > 99) factor = 99;
|
||||
if (q < 50)
|
||||
q = 5000 / factor;
|
||||
else
|
||||
q = 200 - factor*2;
|
||||
|
||||
for (i=0; i < 64; i++) {
|
||||
int lq = (jpeg_luma_quantizer[i] * q + 50) / 100;
|
||||
int cq = (jpeg_chroma_quantizer[i] * q + 50) / 100;
|
||||
|
||||
/* Limit the quantizers to 1 <= q <= 255 */
|
||||
if (lq < 1) lq = 1;
|
||||
else if (lq > 255) lq = 255;
|
||||
lqt[i] = lq;
|
||||
|
||||
if (cq < 1) cq = 1;
|
||||
else if (cq > 255) cq = 255;
|
||||
cqt[i] = cq;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
struct jpeghdr {
|
||||
//unsigned int tspec:8; /* type-specific field */
|
||||
|
|
@ -576,7 +517,7 @@ struct jpeghdr_qtable {
|
|||
* send_packet(u_int8 *data, int len) - Sends the packet to the network
|
||||
*/
|
||||
|
||||
void mjpeg_fragment_and_send(MSFilter *f,EncState *s,mblk_t *frame, uint32_t timestamp,
|
||||
static void mjpeg_fragment_and_send(MSFilter *f,EncState *s,mblk_t *frame, uint32_t timestamp,
|
||||
uint8_t type, uint8_t typespec, int dri,
|
||||
uint8_t q, mblk_t *lqt, mblk_t *cqt) {
|
||||
struct jpeghdr jpghdr;
|
||||
|
|
@ -658,25 +599,25 @@ void mjpeg_fragment_and_send(MSFilter *f,EncState *s,mblk_t *frame, uint32_t tim
|
|||
|
||||
static int find_marker(uint8_t **pbuf_ptr, uint8_t *buf_end){
|
||||
|
||||
uint8_t *buf_ptr;
|
||||
unsigned int v, v2;
|
||||
int val;
|
||||
|
||||
buf_ptr = *pbuf_ptr;
|
||||
while (buf_ptr < buf_end) {
|
||||
v = *buf_ptr++;
|
||||
v2 = *buf_ptr;
|
||||
if ((v == 0xff) && (v2 >= 0xc0) && (v2 <= 0xfe) && buf_ptr < buf_end) {
|
||||
val = *buf_ptr++;
|
||||
*pbuf_ptr = buf_ptr;
|
||||
return val;
|
||||
}
|
||||
}
|
||||
val = -1;
|
||||
uint8_t *buf_ptr;
|
||||
unsigned int v, v2;
|
||||
int val;
|
||||
|
||||
buf_ptr = *pbuf_ptr;
|
||||
while (buf_ptr < buf_end) {
|
||||
v = *buf_ptr++;
|
||||
v2 = *buf_ptr;
|
||||
if ((v == 0xff) && (v2 >= 0xc0) && (v2 <= 0xfe) && buf_ptr < buf_end) {
|
||||
val = *buf_ptr++;
|
||||
*pbuf_ptr = buf_ptr;
|
||||
return val;
|
||||
}
|
||||
}
|
||||
val = -1;
|
||||
return val;
|
||||
}
|
||||
|
||||
mblk_t *skip_jpeg_headers(mblk_t *full_frame, mblk_t **lqt, mblk_t **cqt){
|
||||
static mblk_t *skip_jpeg_headers(mblk_t *full_frame, mblk_t **lqt, mblk_t **cqt){
|
||||
int err;
|
||||
uint8_t *pbuf_ptr=full_frame->b_rptr;
|
||||
uint8_t *buf_end=full_frame->b_wptr;
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue