diff options
Diffstat (limited to 'src/demuxers/demux_ts.c')
| -rw-r--r-- | src/demuxers/demux_ts.c | 38 |
1 files changed, 4 insertions, 34 deletions
diff --git a/src/demuxers/demux_ts.c b/src/demuxers/demux_ts.c index 86a14f019..19826bf71 100644 --- a/src/demuxers/demux_ts.c +++ b/src/demuxers/demux_ts.c @@ -296,7 +296,6 @@ typedef struct { uint32_t pmt_pid[MAX_PMTS]; uint8_t *pmt[MAX_PMTS]; uint8_t *pmt_write_ptr[MAX_PMTS]; - uint32_t crc32_table[256]; uint32_t last_pmt_crc; /* * Stuff to do with the transport header. As well as the video @@ -356,28 +355,6 @@ typedef struct { } demux_ts_class_t; -static void demux_ts_build_crc32_table(demux_ts_t*this) { - uint32_t i, j, k; - - for( i = 0 ; i < 256 ; i++ ) { - k = 0; - for (j = (i << 24) | 0x800000 ; j != 0x80000000 ; j <<= 1) { - k = (k << 1) ^ (((k ^ j) & 0x80000000) ? 0x04c11db7 : 0); - } - this->crc32_table[i] = k; - } -} - -static uint32_t demux_ts_compute_crc32(demux_ts_t*this, uint8_t *data, - int32_t length, uint32_t crc32) { - int32_t i; - - for(i = 0; i < length; i++) { - crc32 = (crc32 << 8) ^ this->crc32_table[(crc32 >> 24) ^ data[i]]; - } - return crc32; -} - /* redefine abs as macro to handle 64-bit diffs. i guess llabs may not be available everywhere */ #define abs(x) ( ((x)<0) ? -(x) : (x) ) @@ -596,8 +573,7 @@ static void demux_ts_parse_pat (demux_ts_t*this, unsigned char *original_pkt, } /* Check CRC. */ - calc_crc32 = demux_ts_compute_crc32 (this, pkt+5, section_length+3-4, - 0xffffffff); + calc_crc32 = _x_compute_crc32 (pkt+5, section_length+3-4, 0xffffffff); if (crc32 != calc_crc32) { xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "demux_ts: demux error! PAT with invalid CRC32: packet_crc32: %.8x calc_crc32: %.8x\n", @@ -1203,9 +1179,8 @@ printf("Program Number is %i, looking for %i\n",program_number,this->program_num crc32 |= (uint32_t) this->pmt[program_count][section_length+3-1] ; /* Check CRC. */ - calc_crc32 = demux_ts_compute_crc32 (this, - this->pmt[program_count], - section_length+3-4, 0xffffffff); + calc_crc32 = _x_compute_crc32 (this->pmt[program_count], + section_length+3-4, 0xffffffff); if (crc32 != calc_crc32) { xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "demux_ts: demux error! PMT with invalid CRC32: packet_crc32: %#.8x calc_crc32: %#.8x\n", @@ -1331,7 +1306,6 @@ printf("Program Number is %i, looking for %i\n",program_number,this->program_num case ISO_13818_PES_PRIVATE: for (i = 5; i < coded_length; i += stream[i+1] + 2) { if ((stream[i] == 0x6a) && (this->audio_tracks_count < MAX_AUDIO_TRACKS)) { - uint32_t format_identifier=0; int i, found = 0; for(i = 0; i < this->audio_tracks_count; i++) { if(this->audio_tracks[i].pid == pid) { @@ -2027,8 +2001,6 @@ static void demux_ts_send_headers (demux_plugin_t *this_gen) { this->send_newpts = 1; - demux_ts_build_crc32_table (this); - this->status = DEMUX_OK ; this->send_end_buffers = 1; @@ -2271,9 +2243,7 @@ static demux_plugin_t *open_plugin (demux_class_t *class_gen, this->status = DEMUX_FINISHED; #ifdef TS_READ_STATS - for (i=0; i<=NPKT_PER_READ; i++) { - this->rstat[i] = 0; - } + memset(this-rstat, 0, sizeof(*this->rstat)*NPKT_PER_READ); #endif /* DVBSUB */ |