Author: ods15 Date: Mon Feb 4 11:56:48 2008 New Revision: 580 Log: make nutparse a little more useful in finding the syncpoint a backptr is pointing to. Modified: src/trunk/nututils/nutparse.c Modified: src/trunk/nututils/nutparse.c ============================================================================== --- src/trunk/nututils/nutparse.c (original) +++ src/trunk/nututils/nutparse.c Mon Feb 4 11:56:48 2008 @@ -462,7 +462,7 @@ static void parse_stream_header(void) } } -static void parse_syncpoint(void) +static void parse_syncpoint(uint64_t pos) { uint64_t value, pts; int tbid, i; @@ -476,7 +476,7 @@ static void parse_syncpoint(void) for (i = 0; i < stream_count; ++i) streams[i].last_pts = convert_ts(pts, tbid, streams[i].time_base_id); value = read_var(); - printf(" back_ptr_div16: %"PRIu64" (%"PRIu64")\n", value, value * 16 + 15); + printf(" back_ptr_div16: %"PRIu64" (%"PRIu64") -> 0x%"PRIx64"\n", value, value * 16 + 15, pos - (value * 16 + 15)); } static void parse_index(void) @@ -623,6 +623,8 @@ static void parse_packet(void) uint64_t forward_ptr; uint32_t checksum, actual_checksum; uint64_t end_pos; + uint64_t packet_start = file_position - 1; + int i; /* TODO: check max_distance */ startcode = read_fixed(7) | ((uint64_t)'N' << 56); @@ -646,7 +648,9 @@ static void parse_packet(void) printf("unknown_packet"); break; } - printf(" at 0x%"PRIx64"\n", file_position - 8); + printf(" at 0x%"PRIx64" [0x%"PRIx64, packet_start, packet_start - 1); + for (i = 2; i < 16; i++) printf(" 0x%"PRIx64, packet_start - i); + printf("]\n"); printf(" startcode: 0x%016"PRIx64"\n", startcode); forward_ptr = read_var_restricted(); printf(" forward_ptr: %"PRIu64"\n", forward_ptr); @@ -667,7 +671,7 @@ static void parse_packet(void) parse_stream_header(); break; case SYNCPOINT_STARTCODE: - parse_syncpoint(); + parse_syncpoint(packet_start); break; case INDEX_STARTCODE: end_pos -= 8; /* special handling for index_ptr behind reserved_bytes */