SEI_TYPE_PIC_TIMING = 1, ///< picture timing
SEI_TYPE_USER_DATA_ITU_T_T35 = 4, ///< user data registered by ITU-T Recommendation T.35
SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data
- SEI_TYPE_RECOVERY_POINT = 6 ///< recovery point (frame # to decoder sync)
+ SEI_TYPE_RECOVERY_POINT = 6, ///< recovery point (frame # to decoder sync)
+ SEI_TYPE_FRAME_PACKING = 45, ///< frame packing arrangement
} SEI_Type;
/**
} SEI_PicStructType;
/**
+ * frame_packing_arrangement types
+ */
+typedef enum {
+ SEI_FPA_TYPE_CHECKERBOARD = 0,
+ SEI_FPA_TYPE_INTERLEAVE_COLUMN = 1,
+ SEI_FPA_TYPE_INTERLEAVE_ROW = 2,
+ SEI_FPA_TYPE_SIDE_BY_SIDE = 3,
+ SEI_FPA_TYPE_TOP_BOTTOM = 4,
+ SEI_FPA_TYPE_INTERLEAVE_TEMPORAL = 5,
+ SEI_FPA_TYPE_2D = 6,
+} SEI_FpaType;
+
+/**
* Sequence parameter set
*/
typedef struct SPS {
} PPS;
/**
+ * Frame Packing Arrangement Type
+ */
+typedef struct FPA {
+ int frame_packing_arrangement_id;
+ int frame_packing_arrangement_cancel_flag; ///< is previous arrangement canceled, -1 if never received
+ SEI_FpaType frame_packing_arrangement_type;
+ int frame_packing_arrangement_repetition_period;
+ int content_interpretation_type;
+ int quincunx_sampling_flag;
+} FPA;
+
+/**
* Memory management control operation opcode.
*/
typedef enum MMCOOpcode {
*/
int valid_recovery_point;
+ FPA sei_fpa;
+
int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
*/
void ff_h264_reset_sei(H264Context *h);
+/**
+ * Get stereo_mode string from the h264 frame_packing_arrangement
+ * @param h H.264 context.
+ */
+const char* ff_h264_sei_stereo_mode(H264Context *h);
+
/*
* o-o o-o
* / / /
return 0;
}
+static int decode_frame_packing(H264Context *h, int size){
+ int bits = get_bits_left(&h->gb);
+
+ h->sei_fpa.frame_packing_arrangement_id = get_ue_golomb(&h->gb);
+ h->sei_fpa.frame_packing_arrangement_cancel_flag = get_bits(&h->gb, 1);
+ if (!h->sei_fpa.frame_packing_arrangement_cancel_flag) {
+ h->sei_fpa.frame_packing_arrangement_type = get_bits(&h->gb, 7);
+ h->sei_fpa.quincunx_sampling_flag = get_bits(&h->gb, 1);
+ h->sei_fpa.content_interpretation_type = get_bits(&h->gb, 6);
+ skip_bits(&h->gb, 1); /* spatial_flipping_flag */
+ skip_bits(&h->gb, 1); /* frame0_flipped_flag */
+ skip_bits(&h->gb, 1); /* field_views_flag */
+ skip_bits(&h->gb, 1); /* current_frame_is_frame0_flag */
+ skip_bits(&h->gb, 1); /* frame0_self_contained_flag */
+ skip_bits(&h->gb, 1); /* frame1_self_contained_flag */
+ if (!h->sei_fpa.quincunx_sampling_flag && h->sei_fpa.frame_packing_arrangement_type != 5) {
+ skip_bits(&h->gb, 4); /* frame0_grid_position_x */
+ skip_bits(&h->gb, 4); /* frame0_grid_position_y */
+ skip_bits(&h->gb, 4); /* frame1_grid_position_x */
+ skip_bits(&h->gb, 4); /* frame1_grid_position_y */
+ }
+ skip_bits(&h->gb, 8); /* frame_packing_arrangement_reserved_byte */
+ h->sei_fpa.frame_packing_arrangement_repetition_period = get_ue_golomb(&h->gb) /* frame_packing_arrangement_repetition_period */;
+ }
+ skip_bits(&h->gb, 1); /* frame_packing_arrangement_extension_flag */
+
+ if (h->avctx->debug & FF_DEBUG_PICT_INFO)
+ av_log(h->avctx, AV_LOG_DEBUG, "SEI FPA %d %d %d %d %d %d\n",
+ h->sei_fpa.frame_packing_arrangement_id,
+ h->sei_fpa.frame_packing_arrangement_cancel_flag,
+ h->sei_fpa.frame_packing_arrangement_type,
+ h->sei_fpa.quincunx_sampling_flag,
+ h->sei_fpa.content_interpretation_type,
+ h->sei_fpa.frame_packing_arrangement_repetition_period);
+ skip_bits_long(&h->gb, 8*size - (bits - get_bits_left(&h->gb)));
+ return 0;
+}
+
int ff_h264_decode_sei(H264Context *h){
while (get_bits_left(&h->gb) > 16) {
int size, type;
if(decode_buffering_period(h) < 0)
return -1;
break;
+ case SEI_TYPE_FRAME_PACKING:
+ if(decode_frame_packing(h, size) < 0)
+ return -1;
default:
skip_bits(&h->gb, 8*size);
}
return 0;
}
+
+const char* ff_h264_sei_stereo_mode(H264Context *h)
+{
+ if (h->sei_fpa.frame_packing_arrangement_cancel_flag == 0) {
+ switch (h->sei_fpa.frame_packing_arrangement_type) {
+ case SEI_FPA_TYPE_CHECKERBOARD:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "checkerboard_rl";
+ else
+ return "checkerboard_lr";
+ case SEI_FPA_TYPE_INTERLEAVE_COLUMN:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "col_interleaved_rl";
+ else
+ return "col_interleaved_lr";
+ case SEI_FPA_TYPE_INTERLEAVE_ROW:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "row_interleaved_rl";
+ else
+ return "row_interleaved_lr";
+ case SEI_FPA_TYPE_SIDE_BY_SIDE:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "right_left";
+ else
+ return "left_right";
+ case SEI_FPA_TYPE_TOP_BOTTOM:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "bottom_top";
+ else
+ return "top_bottom";
+ case SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
+ if (h->sei_fpa.content_interpretation_type == 2)
+ return "block_rl";
+ else
+ return "block_lr";
+ case SEI_FPA_TYPE_2D:
+ default:
+ return "mono";
+ }
+ } else if (h->sei_fpa.frame_packing_arrangement_cancel_flag == 1) {
+ return "mono";
+ } else {
+ return NULL;
+ }
+}