// Return TRUE if all was read. FALSE if a problem occured:
// If a bitstream syntax problem occured the bitstream will
// point to after the problem, in case we run out of data the bitstream
// will point to where we want to restart after getting more.
static int read_seq_info(struct bitstream *esstream)
{
dbg_print(DMT_VERBOSE, "Read Sequence Info\n");
// We only get here after seeing that start code
if (next_u32(esstream) != 0xB3010000) // LSB first (0x000001B3)
fatal(EXIT_BUG_BUG, "read_seq_info: Impossible!");
// If we get here esstream points to the start of a sequence_header_code
// should we run out of data in esstream this is where we want to restart
// after getting more.
unsigned char *video_seq_start = esstream->pos;
sequence_header(esstream);
sequence_ext(esstream);
// FIXME: if sequence extension is missing this is not MPEG-2,
// or broken. Set bitstream error.
//extension_and_user_data(esstream);
if (esstream->error)
return 0;
if (esstream->bitsleft < 0)
{
init_bitstream(esstream, video_seq_start, esstream->end);
return 0;
}
dbg_print(DMT_VERBOSE, "Read Sequence Info - processed\n\n");
return 1;
}
// Return TRUE if all was read. FALSE if a problem occured:
// If a bitstream syntax problem occured the bitstream will
// point to after the problem, in case we run out of data the bitstream
// will point to where we want to restart after getting more.
static int read_seq_info(struct lib_cc_decode *ctx, struct bitstream *esstream)
{
debug("Read Sequence Info\n");
// We only get here after seeing that start code
if (next_u32(esstream) != 0xB3010000) // LSB first (0x000001B3)
fatal(CCX_COMMON_EXIT_BUG_BUG, "read_seq_info: next_u32(esstream) != 0xB3010000. Please file a bug report in GitHub.\n");
// If we get here esstream points to the start of a sequence_header_code
// should we run out of data in esstream this is where we want to restart
// after getting more.
unsigned char *video_seq_start = esstream->pos;
sequence_header(ctx, esstream);
sequence_ext(ctx, esstream);
// FIXME: if sequence extension is missing this is not MPEG-2,
// or broken. Set bitstream error.
//extension_and_user_data(esstream);
if (esstream->error)
return 0;
if (esstream->bitsleft < 0)
{
init_bitstream(esstream, video_seq_start, esstream->end);
return 0;
}
debug("Read Sequence Info - processed\n\n");
return 1;
}