使用mpp解码rtsp h265流报错

[GOAWAY88]

C2RKChips and...hardware.media.c2@1.1-service E open /sys/bus/nvmem/devices/rockchip-efuse0/nvmem error
2025-08-06 14:23:29.488 391-9674 C2RKChips and...hardware.media.c2@1.1-service E open /sys/bus/nvmem/devices/rockchip-efuse0/nvmem error
2025-08-06 14:23:29.489 7487-8004 BufferPoolAccessor2.0 com.honghe.integratedmachine D bufferpool2 0xb4000079eb6c1b88 : 5(31334400 size) total buffers - 4(25067520 size) used buffers - 5796/5801 (recycle/alloc) - 17/11599 (fetch/transfer)
2025-08-08 22:26:39.266 9681-9681 mpp_dma_import_fd pid-9681 E 240: dma_buf_map_attachment fd 482 failed(-22)
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_task_attach_fd:1780: can't import dma-buf 482
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_translate_reg_address:1837: reg[130]: 0x000001e2 fd 482 failed
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2023: --- dump task 0 mem region ---
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[128]: 0x00000000fa030000, size a9000
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[129]: 0x00000000fa030000, size a9000
2025-08-08 22:26:39.266 9681-9681 rk_vcodec pid-9681 E mpp_process_task_default:628: alloc_task failed.
2025-08-08 22:26:39.266 9682-9682 rk_vcodec pid-9682 E mpp_wait_result_default:919: session 9674:564 pending list is empty!
2025-08-08 22:26:39.266 9682-9682 rk_vcodec pid-9682 E mpp_msgs_wait:1633: session 564 wait result ret -5
2025-08-08 22:26:39.267 9681-9681 mpp_dma_import_fd pid-9681 E 240: dma_buf_map_attachment fd 482 failed(-22)
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_attach_fd:1780: can't import dma-buf 482
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_translate_reg_address:1837: reg[132]: 0x000001e2 fd 482 failed
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2023: --- dump task 0 mem region ---
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[128]: 0x00000000fe310000, size a9000
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[129]: 0x00000000fe310000, size a9000
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[130]: 0x000000001a0a0000, size c74000
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_task_dump_mem_region:2029: reg[131]: 0x000000000c040000, size ff000
2025-08-08 22:26:39.267 9681-9681 rk_vcodec pid-9681 E mpp_process_task_default:628: alloc_task failed.
2025-08-08 22:26:39.267 9682-9682 rk_vcodec pid-9682 E mpp_wait_result_default:919: session 9674:564 pending list is empty!
2025-08-08 22:26:39.267 9682-9682 rk_vcodec pid-9682 E mpp_msgs_wait:1633: session 564 wait result ret -5

[GOAWAY88]

        if (is_stream_active) {
            uint8_t* pkt_data = stPacket.pPacketBuffer;
            int pkt_size = stPacket.dwPacketSize;
            RK_U32 pkt_done = 0;
            RK_U32 err_info = 0;
            RK_U32 pkt_eos  = 0;
            ret = mpp_packet_init(&(pThis->packet), NULL, 0);
            LOGI("[DecodeStream] decode_mpp 2");
            mpp_packet_set_data(pThis->packet, pkt_data);
            mpp_packet_set_size(pThis->packet, pkt_size);
            mpp_packet_set_pos(pThis->packet, pkt_data);
            mpp_packet_set_length(pThis->packet, pkt_size);

            if (pkt_eos)
                mpp_packet_set_eos(pThis->packet);

            if (!pkt_done) {
                ret = pThis->mpi->decode_put_packet(pThis->ctx, pThis->packet);
                if (MPP_OK == ret)
                    pkt_done = 1;
            }
            RK_S32 times = 5;
            while (true) {
                ret = pThis->mpi->decode_get_frame(pThis->ctx, &(pThis->frame));
                if (MPP_ERR_TIMEOUT == ret) {
                    if (times > 0) {
                        times--;
                        usleep(2000);
                        continue;
                    }
                    LOGD("decode_get_frame failed too much time ");
                    break;
                }
                if (MPP_OK != ret) {
                    LOGD("decode_get_frame failed ret %d \n", static_cast<int>(ret));
                    break;
                }
                LOGI("[DecodeStream] decode_mpp 3 frame:%p", static_cast<void*>(pThis->frame));
                if (pThis->frame) {
                    RK_U32 hor_stride = mpp_frame_get_hor_stride(pThis->frame);
                    RK_U32 ver_stride = mpp_frame_get_ver_stride(pThis->frame);
                    RK_U32 hor_width = mpp_frame_get_width(pThis->frame);
                    RK_U32 ver_height = mpp_frame_get_height(pThis->frame);
                    RK_S64 pts = mpp_frame_get_pts(pThis->frame);
                    RK_S64 dts = mpp_frame_get_dts(pThis->frame);

                    if (mpp_frame_get_info_change(pThis->frame)) {
                        if (NULL == pThis->frm_grp) {
                            ret = mpp_buffer_group_get_internal(&(pThis->frm_grp), MPP_BUFFER_TYPE_ION);
                            if (ret) break;

                            ret = pThis->mpi->control(pThis->ctx, MPP_DEC_SET_EXT_BUF_GROUP, pThis->frm_grp);
                            if (ret) break;
                        } else {
                            ret = mpp_buffer_group_clear(pThis->frm_grp);
                            if (ret) break;
                        }

                        ret = pThis->mpi->control(pThis->ctx, MPP_DEC_SET_INFO_CHANGE_READY, NULL);
                        if (ret) break;
                    } else {
                        err_info = mpp_frame_get_errinfo(pThis->frame) | mpp_frame_get_discard(pThis->frame);
                        if (!err_info) {
                             //解码当前帧并返回
                            dump_mpp_frame_to_file(frame, "decode");
                        }
                    }
                    bool frm_eos = mpp_frame_get_eos(pThis->frame);
                    if (frm_eos) {
                        LOGD("found last frame ");
                    }
                    mpp_frame_deinit(&(pThis->frame));
                    break;
                }

                if (pkt_eos && pkt_done) {
                    usleep(1000);
                    continue;
                }
                break;
            } // while
            mpp_packet_deinit(&(pThis->packet));
        }

[HermanChen]

rtsp 是会丢包的，把数据存下为用 ffmpeg 验证下是不是丢包错包了，码流有错的话，解码器报错是正常的

[GOAWAY88]

码流有错的话，解码器报错后，怎么恢复呢?我现在遇到码流丢包后，解码器会一直报上面的错误。我怎么恢复解码器，正常解后面的码流呢？ @HermanChen

[HermanChen]

编码端发个 I 帧来，解码就自然恢复了