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Fix handling of 3 byte Annex B start sequences

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Cameron Gutman
2022-09-05 22:53:25 +00:00
parent 4ebd3fb8ba
commit 1b95f027a2
2 changed files with 5 additions and 5 deletions
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8
libgamestream/sps.c
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@@ -31,9 +31,9 @@ void gs_sps_init(int width, int height) {
}
void gs_sps_fix(PLENTRY sps, int flags, uint8_t* out_buf, uint32_t* out_offset) {
const char naluHeader[] = {0x00, 0x00, 0x00, 0x01};
int start_len = sps->data[2] == 0x01 ? 3 : 4;
read_nal_unit(h264_stream, sps->data+4, sps->length-4);
read_nal_unit(h264_stream, sps->data+start_len, sps->length-start_len);
// Some decoders rely on H264 level to decide how many buffers are needed
// Since we only need one frame buffered, we'll set level as low as we can
@@ -76,8 +76,8 @@ void gs_sps_fix(PLENTRY sps, int flags, uint8_t* out_buf, uint32_t* out_offset)
h264_stream->sps->vui.max_bits_per_mb_denom = 1;
}
memcpy(out_buf+*out_offset, naluHeader, 4);
*out_offset += 4;
memcpy(out_buf+*out_offset, sps->data, start_len);
*out_offset += start_len;
*out_offset += write_nal_unit(h264_stream, out_buf+*out_offset, 128);
}