From d94dda742c8eab3141197270fb78063ed22442aa Mon Sep 17 00:00:00 2001 From: Mark Thompson Date: Mon, 7 May 2018 23:33:08 +0100 Subject: cbs_h264: Add support for pan-scan rectangle SEI messages --- libavcodec/cbs_h264_syntax_template.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'libavcodec/cbs_h264_syntax_template.c') diff --git a/libavcodec/cbs_h264_syntax_template.c b/libavcodec/cbs_h264_syntax_template.c index b789207e33..fb1685e6e6 100644 --- a/libavcodec/cbs_h264_syntax_template.c +++ b/libavcodec/cbs_h264_syntax_template.c @@ -626,6 +626,30 @@ static int FUNC(sei_pic_timing)(CodedBitstreamContext *ctx, RWContext *rw, return 0; } +static int FUNC(sei_pan_scan_rect)(CodedBitstreamContext *ctx, RWContext *rw, + H264RawSEIPanScanRect *current) +{ + int err, i; + + ue(pan_scan_rect_id, 0, UINT32_MAX - 1); + flag(pan_scan_rect_cancel_flag); + + if (!current->pan_scan_rect_cancel_flag) { + ue(pan_scan_cnt_minus1, 0, 2); + + for (i = 0; i <= current->pan_scan_cnt_minus1; i++) { + ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); + ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); + ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); + ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i); + } + + ue(pan_scan_rect_repetition_period, 0, 16384); + } + + return 0; +} + static int FUNC(sei_user_data_registered)(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIUserDataRegistered *current, uint32_t *payload_size) @@ -737,6 +761,10 @@ static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw, CHECK(FUNC(sei_pic_timing) (ctx, rw, ¤t->payload.pic_timing)); break; + case H264_SEI_TYPE_PAN_SCAN_RECT: + CHECK(FUNC(sei_pan_scan_rect) + (ctx, rw, ¤t->payload.pan_scan_rect)); + break; case H264_SEI_TYPE_FILLER_PAYLOAD: { for (i = 0; i < current->payload_size; i++) -- cgit v1.2.3